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Merge tag 'nfs-for-5.15-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
[linux-block.git] / fs / f2fs / file.c
CommitLineData
7c1a000d 1// SPDX-License-Identifier: GPL-2.0
0a8165d7 2/*
fbfa2cc5
JK		 3 * fs/f2fs/file.c
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
fbfa2cc5
JK		 7 */
8#include <linux/fs.h>
9#include <linux/f2fs_fs.h>
10#include <linux/stat.h>
11#include <linux/buffer_head.h>
12#include <linux/writeback.h>
ae51fb31 13#include <linux/blkdev.h>
fbfa2cc5
JK		 14#include <linux/falloc.h>
15#include <linux/types.h>
e9750824 16#include <linux/compat.h>
fbfa2cc5
JK		 17#include <linux/uaccess.h>
18#include <linux/mount.h>
7f7670fe 19#include <linux/pagevec.h>
dc91de78 20#include <linux/uio.h>
8da4b8c4 21#include <linux/uuid.h>
4dd6f977 22#include <linux/file.h>
4507847c 23#include <linux/nls.h>
9af84648 24#include <linux/sched/signal.h>
9b1bb01c 25#include <linux/fileattr.h>
fbfa2cc5
JK		 26
27#include "f2fs.h"
28#include "node.h"
29#include "segment.h"
30#include "xattr.h"
31#include "acl.h"
c1c1b583 32#include "gc.h"
a2a4a7e4 33#include <trace/events/f2fs.h>
fa4320ce 34#include <uapi/linux/f2fs.h>
fbfa2cc5 35
ea4d479b 36static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
5a3a2d83
QS		 37{
38 struct inode *inode = file_inode(vmf->vma->vm_file);
ea4d479b 39 vm_fault_t ret;
5a3a2d83 40
ea4d479b 41 ret = filemap_fault(vmf);
8b83ac81
CY		 42 if (!ret)
43 f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
44 F2FS_BLKSIZE);
45
d7648343
CY		 46 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
47
ea4d479b 48 return ret;
5a3a2d83
QS		 49}
50
ea4d479b 51static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
fbfa2cc5
JK		 52{
53 struct page *page = vmf->page;
11bac800 54 struct inode *inode = file_inode(vmf->vma->vm_file);
4081363f 55 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bdf03299 56 struct dnode_of_data dn;
4c8ff709
CY		 57 bool need_alloc = true;
58 int err = 0;
fbfa2cc5 59
e0fcd015
CY		 60 if (unlikely(IS_IMMUTABLE(inode)))
61 return VM_FAULT_SIGBUS;
62
c6140415
JK		 63 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
64 return VM_FAULT_SIGBUS;
65
1f227a3e
JK		 66 if (unlikely(f2fs_cp_error(sbi))) {
67 err = -EIO;
68 goto err;
69 }
70
00e09c0b
CY		 71 if (!f2fs_is_checkpoint_ready(sbi)) {
72 err = -ENOSPC;
955ebcd3 73 goto err;
00e09c0b 74 }
1f227a3e 75
c8e43d55
CY		 76 err = f2fs_convert_inline_inode(inode);
77 if (err)
78 goto err;
79
4c8ff709
CY		 80#ifdef CONFIG_F2FS_FS_COMPRESSION
81 if (f2fs_compressed_file(inode)) {
82 int ret = f2fs_is_compressed_cluster(inode, page->index);
83
84 if (ret < 0) {
85 err = ret;
86 goto err;
87 } else if (ret) {
4c8ff709
CY		 88 need_alloc = false;
89 }
90 }
91#endif
bdf03299 92 /* should do out of any locked page */
4c8ff709
CY		 93 if (need_alloc)
94 f2fs_balance_fs(sbi, true);
bdf03299 95
fbfa2cc5 96 sb_start_pagefault(inode->i_sb);
b3d208f9
JK		 97
98 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
b067ba1f 99
11bac800 100 file_update_time(vmf->vma->vm_file);
edc6d01b 101 filemap_invalidate_lock_shared(inode->i_mapping);
fbfa2cc5 102 lock_page(page);
6bacf52f 103 if (unlikely(page->mapping != inode->i_mapping ||
9851e6e1 104 page_offset(page) > i_size_read(inode) ||
6bacf52f 105 !PageUptodate(page))) {
fbfa2cc5
JK		 106 unlock_page(page);
107 err = -EFAULT;
5a3a2d83 108 goto out_sem;
fbfa2cc5
JK		 109 }
110
4c8ff709
CY		 111 if (need_alloc) {
112 /* block allocation */
0ef81833 113 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
4c8ff709
CY		 114 set_new_dnode(&dn, inode, NULL, NULL, 0);
115 err = f2fs_get_block(&dn, page->index);
0ef81833 116 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
39a86958
CY		 117 }
118
06c7540f
CY		 119#ifdef CONFIG_F2FS_FS_COMPRESSION
120 if (!need_alloc) {
121 set_new_dnode(&dn, inode, NULL, NULL, 0);
122 err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
123 f2fs_put_dnode(&dn);
124 }
125#endif
126 if (err) {
127 unlock_page(page);
128 goto out_sem;
39a86958
CY		 129 }
130
bae0ee7a 131 f2fs_wait_on_page_writeback(page, DATA, false, true);
39a86958
CY		 132
133 /* wait for GCed page writeback via META_MAPPING */
134 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
135
fbfa2cc5
JK		 136 /*
137 * check to see if the page is mapped already (no holes)
138 */
139 if (PageMappedToDisk(page))
39a86958 140 goto out_sem;
fbfa2cc5
JK		 141
142 /* page is wholly or partially inside EOF */
09cbfeaf 143 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
9edcdabf 144 i_size_read(inode)) {
193bea1d 145 loff_t offset;
f11e98bd 146
09cbfeaf
KS		 147 offset = i_size_read(inode) & ~PAGE_MASK;
148 zero_user_segment(page, offset, PAGE_SIZE);
fbfa2cc5
JK		 149 }
150 set_page_dirty(page);
237c0790
JK		 151 if (!PageUptodate(page))
152 SetPageUptodate(page);
fbfa2cc5 153
b0af6d49 154 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
c75f2feb 155 f2fs_update_time(sbi, REQ_TIME);
b0af6d49 156
e943a10d 157 trace_f2fs_vm_page_mkwrite(page, DATA);
5a3a2d83 158out_sem:
edc6d01b 159 filemap_invalidate_unlock_shared(inode->i_mapping);
39a86958 160
fbfa2cc5 161 sb_end_pagefault(inode->i_sb);
1f227a3e 162err:
fbfa2cc5
JK		 163 return block_page_mkwrite_return(err);
164}
165
166static const struct vm_operations_struct f2fs_file_vm_ops = {
5a3a2d83 167 .fault = f2fs_filemap_fault,
f1820361 168 .map_pages = filemap_map_pages,
692bb55d 169 .page_mkwrite = f2fs_vm_page_mkwrite,
fbfa2cc5
JK		 170};
171
354a3399
JK		 172static int get_parent_ino(struct inode *inode, nid_t *pino)
173{
174 struct dentry *dentry;
175
84c9c2de
EB		 176 /*
177 * Make sure to get the non-deleted alias. The alias associated with
178 * the open file descriptor being fsync()'ed may be deleted already.
179 */
180 dentry = d_find_alias(inode);
354a3399
JK		 181 if (!dentry)
182 return 0;
183
f0947e5c
JK		 184 *pino = parent_ino(dentry);
185 dput(dentry);
354a3399
JK		 186 return 1;
187}
188
a5fd5050 189static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
9d1589ef 190{
4081363f 191 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
a5fd5050 192 enum cp_reason_type cp_reason = CP_NO_NEEDED;
9d1589ef 193
a5fd5050
CY		 194 if (!S_ISREG(inode->i_mode))
195 cp_reason = CP_NON_REGULAR;
4c8ff709
CY		 196 else if (f2fs_compressed_file(inode))
197 cp_reason = CP_COMPRESSED;
a5fd5050
CY		 198 else if (inode->i_nlink != 1)
199 cp_reason = CP_HARDLINK;
bbf156f7 200 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
a5fd5050 201 cp_reason = CP_SB_NEED_CP;
9d1589ef 202 else if (file_wrong_pino(inode))
a5fd5050 203 cp_reason = CP_WRONG_PINO;
4d57b86d 204 else if (!f2fs_space_for_roll_forward(sbi))
a5fd5050 205 cp_reason = CP_NO_SPC_ROLL;
4d57b86d 206 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
a5fd5050 207 cp_reason = CP_NODE_NEED_CP;
d5053a34 208 else if (test_opt(sbi, FASTBOOT))
a5fd5050 209 cp_reason = CP_FASTBOOT_MODE;
63189b78 210 else if (F2FS_OPTION(sbi).active_logs == 2)
a5fd5050 211 cp_reason = CP_SPEC_LOG_NUM;
63189b78 212 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
4d57b86d
CY		 213 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
214 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
215 TRANS_DIR_INO))
0a007b97 216 cp_reason = CP_RECOVER_DIR;
9d1589ef 217
a5fd5050 218 return cp_reason;
9d1589ef
CY		 219}
220
9c7bb702
CL		 221static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
222{
223 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
224 bool ret = false;
225 /* But we need to avoid that there are some inode updates */
4d57b86d 226 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
9c7bb702
CL		 227 ret = true;
228 f2fs_put_page(i, 0);
229 return ret;
230}
231
51455b19
CL		 232static void try_to_fix_pino(struct inode *inode)
233{
234 struct f2fs_inode_info *fi = F2FS_I(inode);
235 nid_t pino;
236
237 down_write(&fi->i_sem);
51455b19
CL		 238 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
239 get_parent_ino(inode, &pino)) {
205b9822 240 f2fs_i_pino_write(inode, pino);
51455b19 241 file_got_pino(inode);
51455b19 242 }
ee6d182f 243 up_write(&fi->i_sem);
51455b19
CL		 244}
245
608514de
JK		 246static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
247 int datasync, bool atomic)
fbfa2cc5
JK		 248{
249 struct inode *inode = file->f_mapping->host;
4081363f 250 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2403c155 251 nid_t ino = inode->i_ino;
fbfa2cc5 252 int ret = 0;
a5fd5050 253 enum cp_reason_type cp_reason = 0;
fbfa2cc5 254 struct writeback_control wbc = {
c81bf1c8 255 .sync_mode = WB_SYNC_ALL,
fbfa2cc5
JK		 256 .nr_to_write = LONG_MAX,
257 .for_reclaim = 0,
258 };
50fa53ec 259 unsigned int seq_id = 0;
fbfa2cc5 260
4354994f
DR		 261 if (unlikely(f2fs_readonly(inode->i_sb) ||
262 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1fa95b0b
NJ		 263 return 0;
264
a2a4a7e4 265 trace_f2fs_sync_file_enter(inode);
ea1aa12c 266
b61ac5b7
YH		 267 if (S_ISDIR(inode->i_mode))
268 goto go_write;
269
ea1aa12c 270 /* if fdatasync is triggered, let's do in-place-update */
c46a155b 271 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
91942321 272 set_inode_flag(inode, FI_NEED_IPU);
3b49c9a1 273 ret = file_write_and_wait_range(file, start, end);
91942321 274 clear_inode_flag(inode, FI_NEED_IPU);
c1ce1b02 275
a2a4a7e4 276 if (ret) {
a5fd5050 277 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
fbfa2cc5 278 return ret;
a2a4a7e4 279 }
fbfa2cc5 280
9c7bb702 281 /* if the inode is dirty, let's recover all the time */
281518c6 282 if (!f2fs_skip_inode_update(inode, datasync)) {
2286c020 283 f2fs_write_inode(inode, NULL);
9c7bb702
CL		 284 goto go_write;
285 }
286
6d99ba41
JK		 287 /*
288 * if there is no written data, don't waste time to write recovery info.
289 */
91942321 290 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
4d57b86d 291 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
19c9c466 292
9c7bb702
CL		 293 /* it may call write_inode just prior to fsync */
294 if (need_inode_page_update(sbi, ino))
19c9c466 295 goto go_write;
19c9c466 296
91942321 297 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
4d57b86d 298 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
6d99ba41
JK		 299 goto flush_out;
300 goto out;
301 }
19c9c466 302go_write:
e5d2385e
JK		 303 /*
304 * Both of fdatasync() and fsync() are able to be recovered from
305 * sudden-power-off.
306 */
91942321 307 down_read(&F2FS_I(inode)->i_sem);
a5fd5050 308 cp_reason = need_do_checkpoint(inode);
91942321 309 up_read(&F2FS_I(inode)->i_sem);
d928bfbf 310
a5fd5050 311 if (cp_reason) {
fbfa2cc5
JK		 312 /* all the dirty node pages should be flushed for POR */
313 ret = f2fs_sync_fs(inode->i_sb, 1);
d928bfbf 314
51455b19
CL		 315 /*
316 * We've secured consistency through sync_fs. Following pino
317 * will be used only for fsynced inodes after checkpoint.
318 */
319 try_to_fix_pino(inode);
91942321
JK		 320 clear_inode_flag(inode, FI_APPEND_WRITE);
321 clear_inode_flag(inode, FI_UPDATE_WRITE);
51455b19
CL		 322 goto out;
323 }
88bd02c9 324sync_nodes:
c29fd0c0 325 atomic_inc(&sbi->wb_sync_req[NODE]);
50fa53ec 326 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
c29fd0c0 327 atomic_dec(&sbi->wb_sync_req[NODE]);
c267ec15
JK		 328 if (ret)
329 goto out;
51455b19 330
871f599f 331 /* if cp_error was enabled, we should avoid infinite loop */
6d5a1495
CY		 332 if (unlikely(f2fs_cp_error(sbi))) {
333 ret = -EIO;
871f599f 334 goto out;
6d5a1495 335 }
871f599f 336
4d57b86d 337 if (f2fs_need_inode_block_update(sbi, ino)) {
7c45729a 338 f2fs_mark_inode_dirty_sync(inode, true);
51455b19
CL		 339 f2fs_write_inode(inode, NULL);
340 goto sync_nodes;
fbfa2cc5 341 }
51455b19 342
b6a245eb
JK		 343 /*
344 * If it's atomic_write, it's just fine to keep write ordering. So
345 * here we don't need to wait for node write completion, since we use
346 * node chain which serializes node blocks. If one of node writes are
347 * reordered, we can see simply broken chain, resulting in stopping
348 * roll-forward recovery. It means we'll recover all or none node blocks
349 * given fsync mark.
350 */
351 if (!atomic) {
50fa53ec 352 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
b6a245eb
JK		 353 if (ret)
354 goto out;
355 }
51455b19
CL		 356
357 /* once recovery info is written, don't need to tack this */
4d57b86d 358 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
91942321 359 clear_inode_flag(inode, FI_APPEND_WRITE);
51455b19 360flush_out:
d6290814 361 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
39d787be 362 ret = f2fs_issue_flush(sbi, inode->i_ino);
3f06252f 363 if (!ret) {
4d57b86d 364 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
3f06252f 365 clear_inode_flag(inode, FI_UPDATE_WRITE);
4d57b86d 366 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
3f06252f 367 }
d0239e1b 368 f2fs_update_time(sbi, REQ_TIME);
fbfa2cc5 369out:
a5fd5050 370 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
fbfa2cc5
JK		 371 return ret;
372}
373
608514de
JK		 374int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
375{
1f227a3e
JK		 376 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
377 return -EIO;
608514de
JK		 378 return f2fs_do_sync_file(file, start, end, datasync, false);
379}
380
4cb03fec
MWO		 381static bool __found_offset(struct address_space *mapping, block_t blkaddr,
382 pgoff_t index, int whence)
7f7670fe
JK		 383{
384 switch (whence) {
385 case SEEK_DATA:
4cb03fec
MWO		 386 if (__is_valid_data_blkaddr(blkaddr))
387 return true;
388 if (blkaddr == NEW_ADDR &&
389 xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY))
7f7670fe
JK		 390 return true;
391 break;
392 case SEEK_HOLE:
393 if (blkaddr == NULL_ADDR)
394 return true;
395 break;
396 }
397 return false;
398}
399
267378d4
CY		 400static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
401{
402 struct inode *inode = file->f_mapping->host;
403 loff_t maxbytes = inode->i_sb->s_maxbytes;
404 struct dnode_of_data dn;
4cb03fec 405 pgoff_t pgofs, end_offset;
7f7670fe
JK		 406 loff_t data_ofs = offset;
407 loff_t isize;
267378d4
CY		 408 int err = 0;
409
5955102c 410 inode_lock(inode);
267378d4
CY		 411
412 isize = i_size_read(inode);
413 if (offset >= isize)
414 goto fail;
415
416 /* handle inline data case */
7a6e59d7
CY		 417 if (f2fs_has_inline_data(inode)) {
418 if (whence == SEEK_HOLE) {
419 data_ofs = isize;
420 goto found;
421 } else if (whence == SEEK_DATA) {
422 data_ofs = offset;
423 goto found;
424 }
267378d4
CY		 425 }
426
09cbfeaf 427 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
267378d4 428
09cbfeaf 429 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 430 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 431 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
267378d4
CY		 432 if (err && err != -ENOENT) {
433 goto fail;
434 } else if (err == -ENOENT) {
e1c42045 435 /* direct node does not exists */
267378d4 436 if (whence == SEEK_DATA) {
4d57b86d 437 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
267378d4
CY		 438 continue;
439 } else {
440 goto found;
441 }
442 }
443
81ca7350 444 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
267378d4
CY		 445
446 /* find data/hole in dnode block */
447 for (; dn.ofs_in_node < end_offset;
448 dn.ofs_in_node++, pgofs++,
09cbfeaf 449 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 450 block_t blkaddr;
f11e98bd 451
a2ced1ce 452 blkaddr = f2fs_data_blkaddr(&dn);
267378d4 453
c9b60788
CY		 454 if (__is_valid_data_blkaddr(blkaddr) &&
455 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
93770ab7 456 blkaddr, DATA_GENERIC_ENHANCE)) {
c9b60788
CY		 457 f2fs_put_dnode(&dn);
458 goto fail;
459 }
460
4cb03fec 461 if (__found_offset(file->f_mapping, blkaddr,
e1da7872 462 pgofs, whence)) {
267378d4
CY		 463 f2fs_put_dnode(&dn);
464 goto found;
465 }
466 }
467 f2fs_put_dnode(&dn);
468 }
469
470 if (whence == SEEK_DATA)
471 goto fail;
267378d4 472found:
fe369bc8
JK		 473 if (whence == SEEK_HOLE && data_ofs > isize)
474 data_ofs = isize;
5955102c 475 inode_unlock(inode);
267378d4
CY		 476 return vfs_setpos(file, data_ofs, maxbytes);
477fail:
5955102c 478 inode_unlock(inode);
267378d4
CY		 479 return -ENXIO;
480}
481
482static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
483{
484 struct inode *inode = file->f_mapping->host;
485 loff_t maxbytes = inode->i_sb->s_maxbytes;
486
6d1451bf
CX		 487 if (f2fs_compressed_file(inode))
488 maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
489
267378d4
CY		 490 switch (whence) {
491 case SEEK_SET:
492 case SEEK_CUR:
493 case SEEK_END:
494 return generic_file_llseek_size(file, offset, whence,
495 maxbytes, i_size_read(inode));
496 case SEEK_DATA:
497 case SEEK_HOLE:
0b4c5afd
JK		 498 if (offset < 0)
499 return -ENXIO;
267378d4
CY		 500 return f2fs_seek_block(file, offset, whence);
501 }
502
503 return -EINVAL;
504}
505
fbfa2cc5
JK		 506static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
507{
b3d208f9
JK		 508 struct inode *inode = file_inode(file);
509
1f227a3e
JK		 510 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
511 return -EIO;
512
4c8ff709
CY		 513 if (!f2fs_is_compress_backend_ready(inode))
514 return -EOPNOTSUPP;
515
fbfa2cc5
JK		 516 file_accessed(file);
517 vma->vm_ops = &f2fs_file_vm_ops;
4c8ff709 518 set_inode_flag(inode, FI_MMAP_FILE);
fbfa2cc5
JK		 519 return 0;
520}
521
fcc85a4d
JK		 522static int f2fs_file_open(struct inode *inode, struct file *filp)
523{
2e168c82 524 int err = fscrypt_file_open(inode, filp);
fcc85a4d 525
95ae251f
EB		 526 if (err)
527 return err;
528
4c8ff709
CY		 529 if (!f2fs_is_compress_backend_ready(inode))
530 return -EOPNOTSUPP;
531
95ae251f 532 err = fsverity_file_open(inode, filp);
2e168c82
EB		 533 if (err)
534 return err;
b91050a8
HL		 535
536 filp->f_mode |= FMODE_NOWAIT;
537
0abd675e 538 return dquot_file_open(inode, filp);
fcc85a4d
JK		 539}
540
4d57b86d 541void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
fbfa2cc5 542{
4081363f 543 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
fbfa2cc5 544 struct f2fs_node *raw_node;
19b2c30d 545 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
fbfa2cc5 546 __le32 *addr;
7a2af766 547 int base = 0;
4c8ff709
CY		 548 bool compressed_cluster = false;
549 int cluster_index = 0, valid_blocks = 0;
550 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
c2759eba 551 bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
7a2af766
CY		 552
553 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
554 base = get_extra_isize(dn->inode);
fbfa2cc5 555
45590710 556 raw_node = F2FS_NODE(dn->node_page);
7a2af766 557 addr = blkaddr_in_node(raw_node) + base + ofs;
fbfa2cc5 558
4c8ff709
CY		 559 /* Assumption: truncateion starts with cluster */
560 for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
fbfa2cc5 561 block_t blkaddr = le32_to_cpu(*addr);
f11e98bd 562
4c8ff709
CY		 563 if (f2fs_compressed_file(dn->inode) &&
564 !(cluster_index & (cluster_size - 1))) {
565 if (compressed_cluster)
566 f2fs_i_compr_blocks_update(dn->inode,
567 valid_blocks, false);
568 compressed_cluster = (blkaddr == COMPRESS_ADDR);
569 valid_blocks = 0;
570 }
571
fbfa2cc5
JK		 572 if (blkaddr == NULL_ADDR)
573 continue;
574
e1509cf2 575 dn->data_blkaddr = NULL_ADDR;
4d57b86d 576 f2fs_set_data_blkaddr(dn);
c9b60788 577
4c8ff709
CY		 578 if (__is_valid_data_blkaddr(blkaddr)) {
579 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
93770ab7 580 DATA_GENERIC_ENHANCE))
4c8ff709
CY		 581 continue;
582 if (compressed_cluster)
583 valid_blocks++;
584 }
c9b60788 585
3c6c2beb 586 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
91942321 587 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
4c8ff709
CY		 588
589 f2fs_invalidate_blocks(sbi, blkaddr);
ef8d563f
CY		 590
591 if (!released || blkaddr != COMPRESS_ADDR)
592 nr_free++;
fbfa2cc5 593 }
19b2c30d 594
4c8ff709
CY		 595 if (compressed_cluster)
596 f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
597
fbfa2cc5 598 if (nr_free) {
19b2c30d
CY		 599 pgoff_t fofs;
600 /*
601 * once we invalidate valid blkaddr in range [ofs, ofs + count],
602 * we will invalidate all blkaddr in the whole range.
603 */
4d57b86d 604 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
81ca7350 605 dn->inode) + ofs;
19b2c30d 606 f2fs_update_extent_cache_range(dn, fofs, 0, len);
d7cc950b 607 dec_valid_block_count(sbi, dn->inode, nr_free);
fbfa2cc5
JK		 608 }
609 dn->ofs_in_node = ofs;
51dd6249 610
d0239e1b 611 f2fs_update_time(sbi, REQ_TIME);
51dd6249
NJ		 612 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
613 dn->ofs_in_node, nr_free);
fbfa2cc5
JK		 614}
615
4d57b86d 616void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
fbfa2cc5 617{
d02a6e61 618 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
fbfa2cc5
JK		 619}
620
0bfcfcca 621static int truncate_partial_data_page(struct inode *inode, u64 from,
43f3eae1 622 bool cache_only)
fbfa2cc5 623{
193bea1d 624 loff_t offset = from & (PAGE_SIZE - 1);
09cbfeaf 625 pgoff_t index = from >> PAGE_SHIFT;
43f3eae1 626 struct address_space *mapping = inode->i_mapping;
fbfa2cc5
JK		 627 struct page *page;
628
43f3eae1 629 if (!offset && !cache_only)
b3d208f9 630 return 0;
fbfa2cc5 631
43f3eae1 632 if (cache_only) {
34b5d5c2 633 page = find_lock_page(mapping, index);
43f3eae1
JK		 634 if (page && PageUptodate(page))
635 goto truncate_out;
636 f2fs_put_page(page, 1);
b3d208f9 637 return 0;
43f3eae1 638 }
fbfa2cc5 639
4d57b86d 640 page = f2fs_get_lock_data_page(inode, index, true);
43f3eae1 641 if (IS_ERR(page))
a78aaa2c 642 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
43f3eae1 643truncate_out:
bae0ee7a 644 f2fs_wait_on_page_writeback(page, DATA, true, true);
09cbfeaf 645 zero_user(page, offset, PAGE_SIZE - offset);
a9bcf9bc
JK		 646
647 /* An encrypted inode should have a key and truncate the last page. */
62230e0d 648 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
a9bcf9bc 649 if (!cache_only)
0bfcfcca 650 set_page_dirty(page);
fbfa2cc5 651 f2fs_put_page(page, 1);
b3d208f9 652 return 0;
fbfa2cc5
JK		 653}
654
3265d3db 655int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock)
fbfa2cc5 656{
4081363f 657 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 658 struct dnode_of_data dn;
659 pgoff_t free_from;
9ffe0fb5 660 int count = 0, err = 0;
b3d208f9 661 struct page *ipage;
0bfcfcca 662 bool truncate_page = false;
fbfa2cc5 663
51dd6249
NJ		 664 trace_f2fs_truncate_blocks_enter(inode, from);
665
df033caf 666 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
fbfa2cc5 667
6d1451bf 668 if (free_from >= max_file_blocks(inode))
09210c97
CY		 669 goto free_partial;
670
764aa3e9 671 if (lock)
c42d28ce 672 f2fs_lock_op(sbi);
9ffe0fb5 673
4d57b86d 674 ipage = f2fs_get_node_page(sbi, inode->i_ino);
b3d208f9
JK		 675 if (IS_ERR(ipage)) {
676 err = PTR_ERR(ipage);
677 goto out;
678 }
679
680 if (f2fs_has_inline_data(inode)) {
4d57b86d 681 f2fs_truncate_inline_inode(inode, ipage, from);
b3d208f9 682 f2fs_put_page(ipage, 1);
0bfcfcca 683 truncate_page = true;
b3d208f9
JK		 684 goto out;
685 }
686
687 set_new_dnode(&dn, inode, ipage, NULL, 0);
4d57b86d 688 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
fbfa2cc5
JK		 689 if (err) {
690 if (err == -ENOENT)
691 goto free_next;
b3d208f9 692 goto out;
1ce86bf6
JK		 693 }
694
81ca7350 695 count = ADDRS_PER_PAGE(dn.node_page, inode);
fbfa2cc5
JK		 696
697 count -= dn.ofs_in_node;
9850cf4a 698 f2fs_bug_on(sbi, count < 0);
39936837 699
fbfa2cc5 700 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
4d57b86d 701 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5
JK		 702 free_from += count;
703 }
704
705 f2fs_put_dnode(&dn);
706free_next:
4d57b86d 707 err = f2fs_truncate_inode_blocks(inode, free_from);
764d2c80
JK		 708out:
709 if (lock)
c42d28ce 710 f2fs_unlock_op(sbi);
09210c97 711free_partial:
b3d208f9
JK		 712 /* lastly zero out the first data page */
713 if (!err)
0bfcfcca 714 err = truncate_partial_data_page(inode, from, truncate_page);
fbfa2cc5 715
51dd6249 716 trace_f2fs_truncate_blocks_exit(inode, err);
fbfa2cc5
JK		 717 return err;
718}
719
4c8ff709
CY		 720int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
721{
722 u64 free_from = from;
3265d3db 723 int err;
4c8ff709 724
3265d3db 725#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 726 /*
727 * for compressed file, only support cluster size
728 * aligned truncation.
729 */
4fec3fc0
CY		 730 if (f2fs_compressed_file(inode))
731 free_from = round_up(from,
732 F2FS_I(inode)->i_cluster_size << PAGE_SHIFT);
3265d3db
CY		 733#endif
734
735 err = f2fs_do_truncate_blocks(inode, free_from, lock);
736 if (err)
737 return err;
738
739#ifdef CONFIG_F2FS_FS_COMPRESSION
17d7648d 740 if (from != free_from) {
3265d3db 741 err = f2fs_truncate_partial_cluster(inode, from, lock);
17d7648d
CY		 742 if (err)
743 return err;
744 }
3265d3db 745#endif
4c8ff709 746
17d7648d 747 return 0;
4c8ff709
CY		 748}
749
9a449e9c 750int f2fs_truncate(struct inode *inode)
fbfa2cc5 751{
b0154891
CY		 752 int err;
753
1f227a3e
JK		 754 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
755 return -EIO;
756
fbfa2cc5
JK		 757 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
758 S_ISLNK(inode->i_mode)))
b0154891 759 return 0;
fbfa2cc5 760
51dd6249
NJ		 761 trace_f2fs_truncate(inode);
762
14b44d23 763 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
c45d6002 764 f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
14b44d23
JK		 765 return -EIO;
766 }
7fa750a1 767
25fb04db
YC		 768 err = dquot_initialize(inode);
769 if (err)
770 return err;
771
92dffd01 772 /* we should check inline_data size */
b9d777b8 773 if (!f2fs_may_inline_data(inode)) {
b0154891
CY		 774 err = f2fs_convert_inline_inode(inode);
775 if (err)
776 return err;
92dffd01
JK		 777 }
778
c42d28ce 779 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
b0154891
CY		 780 if (err)
781 return err;
782
078cd827 783 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 784 f2fs_mark_inode_dirty_sync(inode, false);
b0154891 785 return 0;
fbfa2cc5
JK		 786}
787
549c7297
CB		 788int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
789 struct kstat *stat, u32 request_mask, unsigned int query_flags)
fbfa2cc5 790{
a528d35e 791 struct inode *inode = d_inode(path->dentry);
1c6d8ee4 792 struct f2fs_inode_info *fi = F2FS_I(inode);
1c1d35df 793 struct f2fs_inode *ri;
1c6d8ee4
CY		 794 unsigned int flags;
795
1c1d35df 796 if (f2fs_has_extra_attr(inode) &&
7beb01f7 797 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
1c1d35df
CY		 798 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
799 stat->result_mask |= STATX_BTIME;
800 stat->btime.tv_sec = fi->i_crtime.tv_sec;
801 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
802 }
803
36098557 804 flags = fi->i_flags;
fd26725f
CY		 805 if (flags & F2FS_COMPR_FL)
806 stat->attributes |= STATX_ATTR_COMPRESSED;
59c84408 807 if (flags & F2FS_APPEND_FL)
1c6d8ee4 808 stat->attributes |= STATX_ATTR_APPEND;
62230e0d 809 if (IS_ENCRYPTED(inode))
1c6d8ee4 810 stat->attributes |= STATX_ATTR_ENCRYPTED;
59c84408 811 if (flags & F2FS_IMMUTABLE_FL)
1c6d8ee4 812 stat->attributes |= STATX_ATTR_IMMUTABLE;
59c84408 813 if (flags & F2FS_NODUMP_FL)
1c6d8ee4 814 stat->attributes |= STATX_ATTR_NODUMP;
924e3194
EB		 815 if (IS_VERITY(inode))
816 stat->attributes |= STATX_ATTR_VERITY;
1c6d8ee4 817
fd26725f
CY		 818 stat->attributes_mask |= (STATX_ATTR_COMPRESSED |
819 STATX_ATTR_APPEND |
1c6d8ee4
CY		 820 STATX_ATTR_ENCRYPTED |
821 STATX_ATTR_IMMUTABLE |
924e3194
EB		 822 STATX_ATTR_NODUMP |
823 STATX_ATTR_VERITY);
1c6d8ee4 824
0d56a451 825 generic_fillattr(&init_user_ns, inode, stat);
5b4267d1
JK		 826
827 /* we need to show initial sectors used for inline_data/dentries */
828 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
829 f2fs_has_inline_dentry(inode))
830 stat->blocks += (stat->size + 511) >> 9;
831
fbfa2cc5
JK		 832 return 0;
833}
834
835#ifdef CONFIG_F2FS_FS_POSIX_ACL
e65ce2a5
CB		 836static void __setattr_copy(struct user_namespace *mnt_userns,
837 struct inode *inode, const struct iattr *attr)
fbfa2cc5 838{
fbfa2cc5
JK		 839 unsigned int ia_valid = attr->ia_valid;
840
841 if (ia_valid & ATTR_UID)
842 inode->i_uid = attr->ia_uid;
843 if (ia_valid & ATTR_GID)
844 inode->i_gid = attr->ia_gid;
eb31e2f6
AG		 845 if (ia_valid & ATTR_ATIME)
846 inode->i_atime = attr->ia_atime;
847 if (ia_valid & ATTR_MTIME)
848 inode->i_mtime = attr->ia_mtime;
849 if (ia_valid & ATTR_CTIME)
850 inode->i_ctime = attr->ia_ctime;
fbfa2cc5
JK		 851 if (ia_valid & ATTR_MODE) {
852 umode_t mode = attr->ia_mode;
2f221d6f 853 kgid_t kgid = i_gid_into_mnt(mnt_userns, inode);
fbfa2cc5 854
7d6beb71 855 if (!in_group_p(kgid) && !capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))
fbfa2cc5 856 mode &= ~S_ISGID;
91942321 857 set_acl_inode(inode, mode);
fbfa2cc5
JK		 858 }
859}
860#else
861#define __setattr_copy setattr_copy
862#endif
863
549c7297
CB		 864int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
865 struct iattr *attr)
fbfa2cc5 866{
2b0143b5 867 struct inode *inode = d_inode(dentry);
fbfa2cc5
JK		 868 int err;
869
1f227a3e
JK		 870 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
871 return -EIO;
872
e0fcd015
CY		 873 if (unlikely(IS_IMMUTABLE(inode)))
874 return -EPERM;
875
876 if (unlikely(IS_APPEND(inode) &&
877 (attr->ia_valid & (ATTR_MODE | ATTR_UID |
878 ATTR_GID | ATTR_TIMES_SET))))
879 return -EPERM;
880
4c8ff709
CY		 881 if ((attr->ia_valid & ATTR_SIZE) &&
882 !f2fs_is_compress_backend_ready(inode))
883 return -EOPNOTSUPP;
884
2f221d6f 885 err = setattr_prepare(&init_user_ns, dentry, attr);
fbfa2cc5
JK		 886 if (err)
887 return err;
888
20bb2479
EB		 889 err = fscrypt_prepare_setattr(dentry, attr);
890 if (err)
891 return err;
892
95ae251f
EB		 893 err = fsverity_prepare_setattr(dentry, attr);
894 if (err)
895 return err;
896
0abd675e
CY		 897 if (is_quota_modification(inode, attr)) {
898 err = dquot_initialize(inode);
899 if (err)
900 return err;
901 }
902 if ((attr->ia_valid & ATTR_UID &&
903 !uid_eq(attr->ia_uid, inode->i_uid)) ||
904 (attr->ia_valid & ATTR_GID &&
905 !gid_eq(attr->ia_gid, inode->i_gid))) {
af033b2a 906 f2fs_lock_op(F2FS_I_SB(inode));
0abd675e 907 err = dquot_transfer(inode, attr);
af033b2a
CY		 908 if (err) {
909 set_sbi_flag(F2FS_I_SB(inode),
910 SBI_QUOTA_NEED_REPAIR);
911 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e 912 return err;
af033b2a
CY		 913 }
914 /*
915 * update uid/gid under lock_op(), so that dquot and inode can
916 * be updated atomically.
917 */
918 if (attr->ia_valid & ATTR_UID)
919 inode->i_uid = attr->ia_uid;
920 if (attr->ia_valid & ATTR_GID)
921 inode->i_gid = attr->ia_gid;
922 f2fs_mark_inode_dirty_sync(inode, true);
923 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e
CY		 924 }
925
09db6a2e 926 if (attr->ia_valid & ATTR_SIZE) {
cfb9a34d
JK		 927 loff_t old_size = i_size_read(inode);
928
929 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
930 /*
931 * should convert inline inode before i_size_write to
932 * keep smaller than inline_data size with inline flag.
933 */
934 err = f2fs_convert_inline_inode(inode);
935 if (err)
936 return err;
937 }
a33c1502 938
a33c1502 939 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 940 filemap_invalidate_lock(inode->i_mapping);
a33c1502
CY		 941
942 truncate_setsize(inode, attr->ia_size);
943
cfb9a34d 944 if (attr->ia_size <= old_size)
9a449e9c 945 err = f2fs_truncate(inode);
a33c1502
CY		 946 /*
947 * do not trim all blocks after i_size if target size is
948 * larger than i_size.
949 */
edc6d01b 950 filemap_invalidate_unlock(inode->i_mapping);
6f8d4455 951 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
a33c1502
CY		 952 if (err)
953 return err;
0cab80ee 954
c10c9820 955 spin_lock(&F2FS_I(inode)->i_size_lock);
cfb9a34d 956 inode->i_mtime = inode->i_ctime = current_time(inode);
a0d00fad 957 F2FS_I(inode)->last_disk_size = i_size_read(inode);
c10c9820 958 spin_unlock(&F2FS_I(inode)->i_size_lock);
fbfa2cc5
JK		 959 }
960
2f221d6f 961 __setattr_copy(&init_user_ns, inode, attr);
fbfa2cc5
JK		 962
963 if (attr->ia_valid & ATTR_MODE) {
7d6beb71 964 err = posix_acl_chmod(&init_user_ns, inode, f2fs_get_inode_mode(inode));
17232e83
CY		 965
966 if (is_inode_flag_set(inode, FI_ACL_MODE)) {
967 if (!err)
968 inode->i_mode = F2FS_I(inode)->i_acl_mode;
91942321 969 clear_inode_flag(inode, FI_ACL_MODE);
fbfa2cc5
JK		 970 }
971 }
972
c0ed4405 973 /* file size may changed here */
ca597bdd 974 f2fs_mark_inode_dirty_sync(inode, true);
15d04354
JK		 975
976 /* inode change will produce dirty node pages flushed by checkpoint */
977 f2fs_balance_fs(F2FS_I_SB(inode), true);
978
fbfa2cc5
JK		 979 return err;
980}
981
982const struct inode_operations f2fs_file_inode_operations = {
983 .getattr = f2fs_getattr,
984 .setattr = f2fs_setattr,
985 .get_acl = f2fs_get_acl,
a6dda0e6 986 .set_acl = f2fs_set_acl,
fbfa2cc5 987 .listxattr = f2fs_listxattr,
9ab70134 988 .fiemap = f2fs_fiemap,
9b1bb01c
MS		 989 .fileattr_get = f2fs_fileattr_get,
990 .fileattr_set = f2fs_fileattr_set,
fbfa2cc5
JK		 991};
992
6394328a 993static int fill_zero(struct inode *inode, pgoff_t index,
fbfa2cc5
JK		 994 loff_t start, loff_t len)
995{
4081363f 996 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 997 struct page *page;
998
999 if (!len)
6394328a 1000 return 0;
fbfa2cc5 1001
2c4db1a6 1002 f2fs_balance_fs(sbi, true);
bd43df02 1003
e479556b 1004 f2fs_lock_op(sbi);
4d57b86d 1005 page = f2fs_get_new_data_page(inode, NULL, index, false);
e479556b 1006 f2fs_unlock_op(sbi);
fbfa2cc5 1007
6394328a
CY		 1008 if (IS_ERR(page))
1009 return PTR_ERR(page);
1010
bae0ee7a 1011 f2fs_wait_on_page_writeback(page, DATA, true, true);
6394328a
CY		 1012 zero_user(page, start, len);
1013 set_page_dirty(page);
1014 f2fs_put_page(page, 1);
1015 return 0;
fbfa2cc5
JK		 1016}
1017
4d57b86d 1018int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
fbfa2cc5 1019{
fbfa2cc5
JK		 1020 int err;
1021
ea58711e 1022 while (pg_start < pg_end) {
fbfa2cc5 1023 struct dnode_of_data dn;
ea58711e 1024 pgoff_t end_offset, count;
9eaeba70 1025
fbfa2cc5 1026 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1027 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
fbfa2cc5 1028 if (err) {
ea58711e 1029 if (err == -ENOENT) {
4d57b86d
CY		 1030 pg_start = f2fs_get_next_page_offset(&dn,
1031 pg_start);
fbfa2cc5 1032 continue;
ea58711e 1033 }
fbfa2cc5
JK		 1034 return err;
1035 }
1036
81ca7350 1037 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
ea58711e
CY		 1038 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
1039
1040 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
1041
4d57b86d 1042 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5 1043 f2fs_put_dnode(&dn);
ea58711e
CY		 1044
1045 pg_start += count;
fbfa2cc5
JK		 1046 }
1047 return 0;
1048}
1049
a66c7b2f 1050static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
fbfa2cc5
JK		 1051{
1052 pgoff_t pg_start, pg_end;
1053 loff_t off_start, off_end;
b9d777b8 1054 int ret;
fbfa2cc5 1055
b9d777b8
JK		 1056 ret = f2fs_convert_inline_inode(inode);
1057 if (ret)
1058 return ret;
9ffe0fb5 1059
09cbfeaf
KS		 1060 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1061 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
fbfa2cc5 1062
09cbfeaf
KS		 1063 off_start = offset & (PAGE_SIZE - 1);
1064 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5
JK		 1065
1066 if (pg_start == pg_end) {
6394328a 1067 ret = fill_zero(inode, pg_start, off_start,
fbfa2cc5 1068 off_end - off_start);
6394328a
CY		 1069 if (ret)
1070 return ret;
fbfa2cc5 1071 } else {
6394328a
CY		 1072 if (off_start) {
1073 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1074 PAGE_SIZE - off_start);
6394328a
CY		 1075 if (ret)
1076 return ret;
1077 }
1078 if (off_end) {
1079 ret = fill_zero(inode, pg_end, 0, off_end);
1080 if (ret)
1081 return ret;
1082 }
fbfa2cc5
JK		 1083
1084 if (pg_start < pg_end) {
1085 struct address_space *mapping = inode->i_mapping;
1086 loff_t blk_start, blk_end;
4081363f 1087 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1127a3d4 1088
2c4db1a6 1089 f2fs_balance_fs(sbi, true);
fbfa2cc5 1090
09cbfeaf
KS		 1091 blk_start = (loff_t)pg_start << PAGE_SHIFT;
1092 blk_end = (loff_t)pg_end << PAGE_SHIFT;
a33c1502 1093
a33c1502 1094 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 1095 filemap_invalidate_lock(mapping);
a33c1502 1096
fbfa2cc5
JK		 1097 truncate_inode_pages_range(mapping, blk_start,
1098 blk_end - 1);
39936837 1099
e479556b 1100 f2fs_lock_op(sbi);
4d57b86d 1101 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
e479556b 1102 f2fs_unlock_op(sbi);
a33c1502 1103
edc6d01b 1104 filemap_invalidate_unlock(mapping);
6f8d4455 1105 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
fbfa2cc5
JK		 1106 }
1107 }
1108
fbfa2cc5
JK		 1109 return ret;
1110}
1111
0a2aa8fb
JK		 1112static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1113 int *do_replace, pgoff_t off, pgoff_t len)
b4ace337
CY		 1114{
1115 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1116 struct dnode_of_data dn;
0a2aa8fb 1117 int ret, done, i;
ecbaa406 1118
0a2aa8fb 1119next_dnode:
6e2c64ad 1120 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1121 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
6e2c64ad
JK		 1122 if (ret && ret != -ENOENT) {
1123 return ret;
1124 } else if (ret == -ENOENT) {
0a2aa8fb
JK		 1125 if (dn.max_level == 0)
1126 return -ENOENT;
4c8ff709
CY		 1127 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
1128 dn.ofs_in_node, len);
0a2aa8fb
JK		 1129 blkaddr += done;
1130 do_replace += done;
1131 goto next;
1132 }
1133
1134 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1135 dn.ofs_in_node, len);
1136 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
a2ced1ce 1137 *blkaddr = f2fs_data_blkaddr(&dn);
93770ab7
CY		 1138
1139 if (__is_valid_data_blkaddr(*blkaddr) &&
1140 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1141 DATA_GENERIC_ENHANCE)) {
1142 f2fs_put_dnode(&dn);
10f966bb 1143 return -EFSCORRUPTED;
93770ab7
CY		 1144 }
1145
4d57b86d 1146 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
0a2aa8fb 1147
b0332a0f 1148 if (f2fs_lfs_mode(sbi)) {
0a2aa8fb 1149 f2fs_put_dnode(&dn);
fd114ab2 1150 return -EOPNOTSUPP;
0a2aa8fb
JK		 1151 }
1152
6e2c64ad 1153 /* do not invalidate this block address */
f28b3434 1154 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
0a2aa8fb 1155 *do_replace = 1;
b4ace337 1156 }
6e2c64ad 1157 }
0a2aa8fb
JK		 1158 f2fs_put_dnode(&dn);
1159next:
1160 len -= done;
1161 off += done;
1162 if (len)
1163 goto next_dnode;
1164 return 0;
1165}
b4ace337 1166
0a2aa8fb
JK		 1167static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1168 int *do_replace, pgoff_t off, int len)
1169{
1170 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1171 struct dnode_of_data dn;
1172 int ret, i;
b4ace337 1173
0a2aa8fb
JK		 1174 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1175 if (*do_replace == 0)
1176 continue;
b4ace337 1177
0a2aa8fb 1178 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1179 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
0a2aa8fb
JK		 1180 if (ret) {
1181 dec_valid_block_count(sbi, inode, 1);
4d57b86d 1182 f2fs_invalidate_blocks(sbi, *blkaddr);
0a2aa8fb
JK		 1183 } else {
1184 f2fs_update_data_blkaddr(&dn, *blkaddr);
36abef4e 1185 }
0a2aa8fb
JK		 1186 f2fs_put_dnode(&dn);
1187 }
1188 return 0;
1189}
1190
1191static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1192 block_t *blkaddr, int *do_replace,
1193 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1194{
1195 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1196 pgoff_t i = 0;
1197 int ret;
36abef4e 1198
0a2aa8fb
JK		 1199 while (i < len) {
1200 if (blkaddr[i] == NULL_ADDR && !full) {
1201 i++;
1202 continue;
6e2c64ad 1203 }
b4ace337 1204
0a2aa8fb
JK		 1205 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1206 struct dnode_of_data dn;
1207 struct node_info ni;
1208 size_t new_size;
1209 pgoff_t ilen;
b4ace337 1210
0a2aa8fb 1211 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
4d57b86d 1212 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
0a2aa8fb
JK		 1213 if (ret)
1214 return ret;
b4ace337 1215
7735730d
CY		 1216 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
1217 if (ret) {
1218 f2fs_put_dnode(&dn);
1219 return ret;
1220 }
1221
0a2aa8fb
JK		 1222 ilen = min((pgoff_t)
1223 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1224 dn.ofs_in_node, len - i);
1225 do {
a2ced1ce 1226 dn.data_blkaddr = f2fs_data_blkaddr(&dn);
4d57b86d 1227 f2fs_truncate_data_blocks_range(&dn, 1);
0a2aa8fb
JK		 1228
1229 if (do_replace[i]) {
1230 f2fs_i_blocks_write(src_inode,
0abd675e 1231 1, false, false);
0a2aa8fb 1232 f2fs_i_blocks_write(dst_inode,
0abd675e 1233 1, true, false);
0a2aa8fb
JK		 1234 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1235 blkaddr[i], ni.version, true, false);
1236
1237 do_replace[i] = 0;
1238 }
1239 dn.ofs_in_node++;
1240 i++;
1f0d5c91 1241 new_size = (loff_t)(dst + i) << PAGE_SHIFT;
0a2aa8fb
JK		 1242 if (dst_inode->i_size < new_size)
1243 f2fs_i_size_write(dst_inode, new_size);
e87f7329 1244 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
6e2c64ad 1245
0a2aa8fb
JK		 1246 f2fs_put_dnode(&dn);
1247 } else {
1248 struct page *psrc, *pdst;
1249
4d57b86d
CY		 1250 psrc = f2fs_get_lock_data_page(src_inode,
1251 src + i, true);
0a2aa8fb
JK		 1252 if (IS_ERR(psrc))
1253 return PTR_ERR(psrc);
4d57b86d 1254 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
0a2aa8fb
JK		 1255 true);
1256 if (IS_ERR(pdst)) {
1257 f2fs_put_page(psrc, 1);
1258 return PTR_ERR(pdst);
1259 }
1260 f2fs_copy_page(psrc, pdst);
1261 set_page_dirty(pdst);
1262 f2fs_put_page(pdst, 1);
6e2c64ad 1263 f2fs_put_page(psrc, 1);
b4ace337 1264
4d57b86d
CY		 1265 ret = f2fs_truncate_hole(src_inode,
1266 src + i, src + i + 1);
0a2aa8fb
JK		 1267 if (ret)
1268 return ret;
1269 i++;
1270 }
6e2c64ad
JK		 1271 }
1272 return 0;
0a2aa8fb 1273}
b4ace337 1274
0a2aa8fb
JK		 1275static int __exchange_data_block(struct inode *src_inode,
1276 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
363cad7f 1277 pgoff_t len, bool full)
0a2aa8fb
JK		 1278{
1279 block_t *src_blkaddr;
1280 int *do_replace;
363cad7f 1281 pgoff_t olen;
0a2aa8fb
JK		 1282 int ret;
1283
363cad7f 1284 while (len) {
d02a6e61 1285 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
0a2aa8fb 1286
628b3d14 1287 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1288 array_size(olen, sizeof(block_t)),
4f4460c0 1289 GFP_NOFS);
363cad7f
JK		 1290 if (!src_blkaddr)
1291 return -ENOMEM;
0a2aa8fb 1292
628b3d14 1293 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1294 array_size(olen, sizeof(int)),
4f4460c0 1295 GFP_NOFS);
363cad7f
JK		 1296 if (!do_replace) {
1297 kvfree(src_blkaddr);
1298 return -ENOMEM;
1299 }
0a2aa8fb 1300
363cad7f
JK		 1301 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1302 do_replace, src, olen);
1303 if (ret)
1304 goto roll_back;
0a2aa8fb 1305
363cad7f
JK		 1306 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1307 do_replace, src, dst, olen, full);
1308 if (ret)
1309 goto roll_back;
1310
1311 src += olen;
1312 dst += olen;
1313 len -= olen;
1314
1315 kvfree(src_blkaddr);
1316 kvfree(do_replace);
1317 }
0a2aa8fb
JK		 1318 return 0;
1319
1320roll_back:
9fd62605 1321 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
0a2aa8fb
JK		 1322 kvfree(src_blkaddr);
1323 kvfree(do_replace);
6e2c64ad
JK		 1324 return ret;
1325}
b4ace337 1326
6f8d4455 1327static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
6e2c64ad
JK		 1328{
1329 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f91108b8 1330 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
6f8d4455
JK		 1331 pgoff_t start = offset >> PAGE_SHIFT;
1332 pgoff_t end = (offset + len) >> PAGE_SHIFT;
0a2aa8fb 1333 int ret;
6e2c64ad 1334
0a2aa8fb 1335 f2fs_balance_fs(sbi, true);
5f281fab 1336
6f8d4455
JK		 1337 /* avoid gc operation during block exchange */
1338 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 1339 filemap_invalidate_lock(inode->i_mapping);
5f281fab 1340
6f8d4455
JK		 1341 f2fs_lock_op(sbi);
1342 f2fs_drop_extent_tree(inode);
1343 truncate_pagecache(inode, offset);
0a2aa8fb
JK		 1344 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1345 f2fs_unlock_op(sbi);
6f8d4455 1346
edc6d01b 1347 filemap_invalidate_unlock(inode->i_mapping);
6f8d4455 1348 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
b4ace337
CY		 1349 return ret;
1350}
1351
1352static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1353{
b4ace337
CY		 1354 loff_t new_size;
1355 int ret;
1356
b4ace337
CY		 1357 if (offset + len >= i_size_read(inode))
1358 return -EINVAL;
1359
1360 /* collapse range should be aligned to block size of f2fs. */
1361 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1362 return -EINVAL;
1363
b9d777b8
JK		 1364 ret = f2fs_convert_inline_inode(inode);
1365 if (ret)
1366 return ret;
97a7b2c2 1367
b4ace337
CY		 1368 /* write out all dirty pages from offset */
1369 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1370 if (ret)
6f8d4455 1371 return ret;
b4ace337 1372
6f8d4455 1373 ret = f2fs_do_collapse(inode, offset, len);
b4ace337 1374 if (ret)
6f8d4455 1375 return ret;
b4ace337 1376
6e2c64ad 1377 /* write out all moved pages, if possible */
edc6d01b 1378 filemap_invalidate_lock(inode->i_mapping);
6e2c64ad
JK		 1379 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1380 truncate_pagecache(inode, offset);
1381
b4ace337 1382 new_size = i_size_read(inode) - len;
c42d28ce 1383 ret = f2fs_truncate_blocks(inode, new_size, true);
edc6d01b 1384 filemap_invalidate_unlock(inode->i_mapping);
b4ace337 1385 if (!ret)
fc9581c8 1386 f2fs_i_size_write(inode, new_size);
b4ace337
CY		 1387 return ret;
1388}
1389
6e961949
CY		 1390static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1391 pgoff_t end)
1392{
1393 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1394 pgoff_t index = start;
1395 unsigned int ofs_in_node = dn->ofs_in_node;
1396 blkcnt_t count = 0;
1397 int ret;
1398
1399 for (; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1400 if (f2fs_data_blkaddr(dn) == NULL_ADDR)
6e961949
CY		 1401 count++;
1402 }
1403
1404 dn->ofs_in_node = ofs_in_node;
4d57b86d 1405 ret = f2fs_reserve_new_blocks(dn, count);
6e961949
CY		 1406 if (ret)
1407 return ret;
1408
1409 dn->ofs_in_node = ofs_in_node;
1410 for (index = start; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1411 dn->data_blkaddr = f2fs_data_blkaddr(dn);
6e961949 1412 /*
4d57b86d 1413 * f2fs_reserve_new_blocks will not guarantee entire block
6e961949
CY		 1414 * allocation.
1415 */
1416 if (dn->data_blkaddr == NULL_ADDR) {
1417 ret = -ENOSPC;
1418 break;
1419 }
1420 if (dn->data_blkaddr != NEW_ADDR) {
4d57b86d 1421 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
6e961949 1422 dn->data_blkaddr = NEW_ADDR;
4d57b86d 1423 f2fs_set_data_blkaddr(dn);
6e961949
CY		 1424 }
1425 }
1426
1427 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1428
1429 return ret;
1430}
1431
75cd4e09
CY		 1432static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1433 int mode)
1434{
1435 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1436 struct address_space *mapping = inode->i_mapping;
1437 pgoff_t index, pg_start, pg_end;
1438 loff_t new_size = i_size_read(inode);
1439 loff_t off_start, off_end;
1440 int ret = 0;
1441
75cd4e09
CY		 1442 ret = inode_newsize_ok(inode, (len + offset));
1443 if (ret)
1444 return ret;
1445
b9d777b8
JK		 1446 ret = f2fs_convert_inline_inode(inode);
1447 if (ret)
1448 return ret;
75cd4e09
CY		 1449
1450 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1451 if (ret)
6f8d4455 1452 return ret;
75cd4e09 1453
09cbfeaf
KS		 1454 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1455 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
75cd4e09 1456
09cbfeaf
KS		 1457 off_start = offset & (PAGE_SIZE - 1);
1458 off_end = (offset + len) & (PAGE_SIZE - 1);
75cd4e09
CY		 1459
1460 if (pg_start == pg_end) {
6394328a
CY		 1461 ret = fill_zero(inode, pg_start, off_start,
1462 off_end - off_start);
1463 if (ret)
6f8d4455 1464 return ret;
6394328a 1465
75cd4e09
CY		 1466 new_size = max_t(loff_t, new_size, offset + len);
1467 } else {
1468 if (off_start) {
6394328a 1469 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1470 PAGE_SIZE - off_start);
6394328a 1471 if (ret)
6f8d4455 1472 return ret;
6394328a 1473
75cd4e09 1474 new_size = max_t(loff_t, new_size,
09cbfeaf 1475 (loff_t)pg_start << PAGE_SHIFT);
75cd4e09
CY		 1476 }
1477
6e961949 1478 for (index = pg_start; index < pg_end;) {
75cd4e09 1479 struct dnode_of_data dn;
6e961949
CY		 1480 unsigned int end_offset;
1481 pgoff_t end;
75cd4e09 1482
c7079853 1483 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 1484 filemap_invalidate_lock(mapping);
c7079853
CY		 1485
1486 truncate_pagecache_range(inode,
1487 (loff_t)index << PAGE_SHIFT,
1488 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1489
75cd4e09
CY		 1490 f2fs_lock_op(sbi);
1491
6e961949 1492 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1493 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
75cd4e09
CY		 1494 if (ret) {
1495 f2fs_unlock_op(sbi);
edc6d01b 1496 filemap_invalidate_unlock(mapping);
c7079853 1497 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
75cd4e09
CY		 1498 goto out;
1499 }
1500
6e961949
CY		 1501 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1502 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1503
1504 ret = f2fs_do_zero_range(&dn, index, end);
75cd4e09 1505 f2fs_put_dnode(&dn);
c7079853 1506
75cd4e09 1507 f2fs_unlock_op(sbi);
edc6d01b 1508 filemap_invalidate_unlock(mapping);
c7079853 1509 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
9434fcde
CY		 1510
1511 f2fs_balance_fs(sbi, dn.node_changed);
1512
6e961949
CY		 1513 if (ret)
1514 goto out;
75cd4e09 1515
6e961949 1516 index = end;
75cd4e09 1517 new_size = max_t(loff_t, new_size,
6e961949 1518 (loff_t)index << PAGE_SHIFT);
75cd4e09
CY		 1519 }
1520
1521 if (off_end) {
6394328a
CY		 1522 ret = fill_zero(inode, pg_end, 0, off_end);
1523 if (ret)
1524 goto out;
1525
75cd4e09
CY		 1526 new_size = max_t(loff_t, new_size, offset + len);
1527 }
1528 }
1529
1530out:
17cd07ae
CY		 1531 if (new_size > i_size_read(inode)) {
1532 if (mode & FALLOC_FL_KEEP_SIZE)
1533 file_set_keep_isize(inode);
1534 else
1535 f2fs_i_size_write(inode, new_size);
1536 }
75cd4e09
CY		 1537 return ret;
1538}
1539
f62185d0
CY		 1540static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1541{
1542 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
edc6d01b 1543 struct address_space *mapping = inode->i_mapping;
0a2aa8fb 1544 pgoff_t nr, pg_start, pg_end, delta, idx;
f62185d0 1545 loff_t new_size;
6e2c64ad 1546 int ret = 0;
f62185d0 1547
f62185d0 1548 new_size = i_size_read(inode) + len;
46e82fb1
KM		 1549 ret = inode_newsize_ok(inode, new_size);
1550 if (ret)
1551 return ret;
f62185d0
CY		 1552
1553 if (offset >= i_size_read(inode))
1554 return -EINVAL;
1555
1556 /* insert range should be aligned to block size of f2fs. */
1557 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1558 return -EINVAL;
1559
b9d777b8
JK		 1560 ret = f2fs_convert_inline_inode(inode);
1561 if (ret)
1562 return ret;
97a7b2c2 1563
2c4db1a6 1564 f2fs_balance_fs(sbi, true);
2a340760 1565
edc6d01b 1566 filemap_invalidate_lock(mapping);
c42d28ce 1567 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
edc6d01b 1568 filemap_invalidate_unlock(mapping);
f62185d0 1569 if (ret)
6f8d4455 1570 return ret;
f62185d0
CY		 1571
1572 /* write out all dirty pages from offset */
edc6d01b 1573 ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
f62185d0 1574 if (ret)
6f8d4455 1575 return ret;
f62185d0 1576
09cbfeaf
KS		 1577 pg_start = offset >> PAGE_SHIFT;
1578 pg_end = (offset + len) >> PAGE_SHIFT;
f62185d0 1579 delta = pg_end - pg_start;
f91108b8 1580 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
0a2aa8fb 1581
6f8d4455
JK		 1582 /* avoid gc operation during block exchange */
1583 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 1584 filemap_invalidate_lock(mapping);
6f8d4455
JK		 1585 truncate_pagecache(inode, offset);
1586
0a2aa8fb
JK		 1587 while (!ret && idx > pg_start) {
1588 nr = idx - pg_start;
1589 if (nr > delta)
1590 nr = delta;
1591 idx -= nr;
f62185d0 1592
f62185d0 1593 f2fs_lock_op(sbi);
5f281fab
JK		 1594 f2fs_drop_extent_tree(inode);
1595
0a2aa8fb
JK		 1596 ret = __exchange_data_block(inode, inode, idx,
1597 idx + delta, nr, false);
f62185d0
CY		 1598 f2fs_unlock_op(sbi);
1599 }
edc6d01b 1600 filemap_invalidate_unlock(mapping);
6f8d4455 1601 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
f62185d0 1602
6e2c64ad 1603 /* write out all moved pages, if possible */
edc6d01b
JK		 1604 filemap_invalidate_lock(mapping);
1605 filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
6e2c64ad 1606 truncate_pagecache(inode, offset);
edc6d01b 1607 filemap_invalidate_unlock(mapping);
6e2c64ad
JK		 1608
1609 if (!ret)
fc9581c8 1610 f2fs_i_size_write(inode, new_size);
f62185d0
CY		 1611 return ret;
1612}
1613
fbfa2cc5
JK		 1614static int expand_inode_data(struct inode *inode, loff_t offset,
1615 loff_t len, int mode)
1616{
4081363f 1617 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d5097be5 1618 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
f9d6d059
CY		 1619 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1620 .m_may_create = true };
88f2cfc5 1621 pgoff_t pg_start, pg_end;
fbfa2cc5 1622 loff_t new_size = i_size_read(inode);
e12dd7bd 1623 loff_t off_end;
88f2cfc5 1624 block_t expanded = 0;
a7de6086 1625 int err;
fbfa2cc5 1626
a7de6086
JK		 1627 err = inode_newsize_ok(inode, (len + offset));
1628 if (err)
1629 return err;
fbfa2cc5 1630
a7de6086
JK		 1631 err = f2fs_convert_inline_inode(inode);
1632 if (err)
1633 return err;
9e09fc85 1634
2c4db1a6 1635 f2fs_balance_fs(sbi, true);
2a340760 1636
88f2cfc5 1637 pg_start = ((unsigned long long)offset) >> PAGE_SHIFT;
e12dd7bd 1638 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
09cbfeaf 1639 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5 1640
88f2cfc5
CY		 1641 map.m_lblk = pg_start;
1642 map.m_len = pg_end - pg_start;
e12dd7bd
JK		 1643 if (off_end)
1644 map.m_len++;
ead43275 1645
f5a53edc
JK		 1646 if (!map.m_len)
1647 return 0;
1648
1649 if (f2fs_is_pinned_file(inode)) {
e1175f02
CY		 1650 block_t sec_blks = BLKS_PER_SEC(sbi);
1651 block_t sec_len = roundup(map.m_len, sec_blks);
f5a53edc 1652
e1175f02 1653 map.m_len = sec_blks;
f5a53edc
JK		 1654next_alloc:
1655 if (has_not_enough_free_secs(sbi, 0,
1656 GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
fb24fea7 1657 down_write(&sbi->gc_lock);
7dede886 1658 err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
f5a53edc
JK		 1659 if (err && err != -ENODATA && err != -EAGAIN)
1660 goto out_err;
1661 }
1662
1663 down_write(&sbi->pin_sem);
fd612648
DJ		 1664
1665 f2fs_lock_op(sbi);
509f1010 1666 f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
fd612648
DJ		 1667 f2fs_unlock_op(sbi);
1668
d0b9e42a 1669 map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f5a53edc 1670 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
d0b9e42a 1671
f5a53edc 1672 up_write(&sbi->pin_sem);
cad3836f 1673
88f2cfc5 1674 expanded += map.m_len;
e1175f02 1675 sec_len -= map.m_len;
f5a53edc 1676 map.m_lblk += map.m_len;
e1175f02 1677 if (!err && sec_len)
f5a53edc
JK		 1678 goto next_alloc;
1679
88f2cfc5 1680 map.m_len = expanded;
f5a53edc
JK		 1681 } else {
1682 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
88f2cfc5 1683 expanded = map.m_len;
f5a53edc
JK		 1684 }
1685out_err:
a7de6086 1686 if (err) {
e12dd7bd 1687 pgoff_t last_off;
fbfa2cc5 1688
88f2cfc5 1689 if (!expanded)
a7de6086 1690 return err;
98397ff3 1691
88f2cfc5 1692 last_off = pg_start + expanded - 1;
e12dd7bd
JK		 1693
1694 /* update new size to the failed position */
1061fd48 1695 new_size = (last_off == pg_end) ? offset + len :
e12dd7bd
JK		 1696 (loff_t)(last_off + 1) << PAGE_SHIFT;
1697 } else {
1698 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
fbfa2cc5
JK		 1699 }
1700
e8ed90a6
CY		 1701 if (new_size > i_size_read(inode)) {
1702 if (mode & FALLOC_FL_KEEP_SIZE)
1703 file_set_keep_isize(inode);
1704 else
1705 f2fs_i_size_write(inode, new_size);
1706 }
fbfa2cc5 1707
a7de6086 1708 return err;
fbfa2cc5
JK		 1709}
1710
1711static long f2fs_fallocate(struct file *file, int mode,
1712 loff_t offset, loff_t len)
1713{
6131ffaa 1714 struct inode *inode = file_inode(file);
587c0a42 1715 long ret = 0;
fbfa2cc5 1716
1f227a3e
JK		 1717 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1718 return -EIO;
00e09c0b
CY		 1719 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1720 return -ENOSPC;
4c8ff709
CY		 1721 if (!f2fs_is_compress_backend_ready(inode))
1722 return -EOPNOTSUPP;
1f227a3e 1723
c998012b
CY		 1724 /* f2fs only support ->fallocate for regular file */
1725 if (!S_ISREG(inode->i_mode))
1726 return -EINVAL;
1727
62230e0d 1728 if (IS_ENCRYPTED(inode) &&
f62185d0 1729 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
fcc85a4d
JK		 1730 return -EOPNOTSUPP;
1731
4c8ff709
CY		 1732 if (f2fs_compressed_file(inode) &&
1733 (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
1734 FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
1735 return -EOPNOTSUPP;
1736
b4ace337 1737 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
f62185d0
CY		 1738 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1739 FALLOC_FL_INSERT_RANGE))
fbfa2cc5
JK		 1740 return -EOPNOTSUPP;
1741
5955102c 1742 inode_lock(inode);
3375f696 1743
587c0a42
TY		 1744 if (mode & FALLOC_FL_PUNCH_HOLE) {
1745 if (offset >= inode->i_size)
1746 goto out;
1747
a66c7b2f 1748 ret = punch_hole(inode, offset, len);
b4ace337
CY		 1749 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1750 ret = f2fs_collapse_range(inode, offset, len);
75cd4e09
CY		 1751 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1752 ret = f2fs_zero_range(inode, offset, len, mode);
f62185d0
CY		 1753 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1754 ret = f2fs_insert_range(inode, offset, len);
b4ace337 1755 } else {
fbfa2cc5 1756 ret = expand_inode_data(inode, offset, len, mode);
b4ace337 1757 }
fbfa2cc5 1758
3af60a49 1759 if (!ret) {
078cd827 1760 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 1761 f2fs_mark_inode_dirty_sync(inode, false);
d0239e1b 1762 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3af60a49 1763 }
3375f696 1764
587c0a42 1765out:
5955102c 1766 inode_unlock(inode);
3375f696 1767
c01e2853 1768 trace_f2fs_fallocate(inode, mode, offset, len, ret);
fbfa2cc5
JK		 1769 return ret;
1770}
1771
1e84371f
JK		 1772static int f2fs_release_file(struct inode *inode, struct file *filp)
1773{
de5307e4
JK		 1774 /*
1775 * f2fs_relase_file is called at every close calls. So we should
1776 * not drop any inmemory pages by close called by other process.
1777 */
1778 if (!(filp->f_mode & FMODE_WRITE) ||
1779 atomic_read(&inode->i_writecount) != 1)
1780 return 0;
1781
1e84371f
JK		 1782 /* some remained atomic pages should discarded */
1783 if (f2fs_is_atomic_file(inode))
4d57b86d 1784 f2fs_drop_inmem_pages(inode);
1e84371f 1785 if (f2fs_is_volatile_file(inode)) {
91942321 1786 set_inode_flag(inode, FI_DROP_CACHE);
1e84371f 1787 filemap_fdatawrite(inode->i_mapping);
91942321 1788 clear_inode_flag(inode, FI_DROP_CACHE);
dfa74280
CY		 1789 clear_inode_flag(inode, FI_VOLATILE_FILE);
1790 stat_dec_volatile_write(inode);
1e84371f
JK		 1791 }
1792 return 0;
1793}
1794
7a10f017 1795static int f2fs_file_flush(struct file *file, fl_owner_t id)
fbfa2cc5 1796{
7a10f017
JK		 1797 struct inode *inode = file_inode(file);
1798
1799 /*
1800 * If the process doing a transaction is crashed, we should do
1801 * roll-back. Otherwise, other reader/write can see corrupted database
1802 * until all the writers close its file. Since this should be done
1803 * before dropping file lock, it needs to do in ->flush.
1804 */
1805 if (f2fs_is_atomic_file(inode) &&
1806 F2FS_I(inode)->inmem_task == current)
4d57b86d 1807 f2fs_drop_inmem_pages(inode);
7a10f017 1808 return 0;
fbfa2cc5
JK		 1809}
1810
36098557 1811static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
2c1d0305
CY		 1812{
1813 struct f2fs_inode_info *fi = F2FS_I(inode);
99eabb91
JK		 1814 u32 masked_flags = fi->i_flags & mask;
1815
a7531039
JK		 1816 /* mask can be shrunk by flags_valid selector */
1817 iflags &= mask;
2c1d0305
CY		 1818
1819 /* Is it quota file? Do not allow user to mess with it */
1820 if (IS_NOQUOTA(inode))
1821 return -EPERM;
1822
99eabb91 1823 if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
2c2eb7a3
DR		 1824 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1825 return -EOPNOTSUPP;
1826 if (!f2fs_empty_dir(inode))
1827 return -ENOTEMPTY;
1828 }
1829
4c8ff709
CY		 1830 if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
1831 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
1832 return -EOPNOTSUPP;
1833 if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
1834 return -EINVAL;
1835 }
1836
99eabb91 1837 if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
aa576970 1838 if (masked_flags & F2FS_COMPR_FL) {
78134d03 1839 if (!f2fs_disable_compressed_file(inode))
2536ac68
CY		 1840 return -EINVAL;
1841 }
4c8ff709
CY		 1842 if (iflags & F2FS_NOCOMP_FL)
1843 return -EINVAL;
1844 if (iflags & F2FS_COMPR_FL) {
4c8ff709
CY		 1845 if (!f2fs_may_compress(inode))
1846 return -EINVAL;
519a5a2f
CY		 1847 if (S_ISREG(inode->i_mode) && inode->i_size)
1848 return -EINVAL;
4c8ff709
CY		 1849
1850 set_compress_context(inode);
1851 }
1852 }
99eabb91
JK		 1853 if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
1854 if (masked_flags & F2FS_COMPR_FL)
4c8ff709
CY		 1855 return -EINVAL;
1856 }
1857
d5e5efa2 1858 fi->i_flags = iflags | (fi->i_flags & ~mask);
4c8ff709
CY		 1859 f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
1860 (fi->i_flags & F2FS_NOCOMP_FL));
2c1d0305 1861
59c84408 1862 if (fi->i_flags & F2FS_PROJINHERIT_FL)
2c1d0305
CY		 1863 set_inode_flag(inode, FI_PROJ_INHERIT);
1864 else
1865 clear_inode_flag(inode, FI_PROJ_INHERIT);
1866
1867 inode->i_ctime = current_time(inode);
1868 f2fs_set_inode_flags(inode);
b32e0190 1869 f2fs_mark_inode_dirty_sync(inode, true);
2c1d0305
CY		 1870 return 0;
1871}
1872
9b1bb01c 1873/* FS_IOC_[GS]ETFLAGS and FS_IOC_FS[GS]ETXATTR support */
36098557
EB		 1874
1875/*
1876 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1877 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1878 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1879 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
9b1bb01c
MS		 1880 *
1881 * Translating flags to fsx_flags value used by FS_IOC_FSGETXATTR and
1882 * FS_IOC_FSSETXATTR is done by the VFS.
36098557
EB		 1883 */
1884
1885static const struct {
1886 u32 iflag;
1887 u32 fsflag;
1888} f2fs_fsflags_map[] = {
4c8ff709 1889 { F2FS_COMPR_FL, FS_COMPR_FL },
36098557
EB		 1890 { F2FS_SYNC_FL, FS_SYNC_FL },
1891 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1892 { F2FS_APPEND_FL, FS_APPEND_FL },
1893 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1894 { F2FS_NOATIME_FL, FS_NOATIME_FL },
4c8ff709 1895 { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
36098557
EB		 1896 { F2FS_INDEX_FL, FS_INDEX_FL },
1897 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1898 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
2c2eb7a3 1899 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
36098557
EB		 1900};
1901
1902#define F2FS_GETTABLE_FS_FL ( \
4c8ff709 1903 FS_COMPR_FL | \
36098557
EB		 1904 FS_SYNC_FL | \
1905 FS_IMMUTABLE_FL | \
1906 FS_APPEND_FL | \
1907 FS_NODUMP_FL | \
1908 FS_NOATIME_FL | \
4c8ff709 1909 FS_NOCOMP_FL | \
36098557
EB		 1910 FS_INDEX_FL | \
1911 FS_DIRSYNC_FL | \
1912 FS_PROJINHERIT_FL | \
1913 FS_ENCRYPT_FL | \
1914 FS_INLINE_DATA_FL | \
95ae251f 1915 FS_NOCOW_FL | \
fbc246a1 1916 FS_VERITY_FL | \
2c2eb7a3 1917 FS_CASEFOLD_FL)
36098557
EB		 1918
1919#define F2FS_SETTABLE_FS_FL ( \
4c8ff709 1920 FS_COMPR_FL | \
36098557
EB		 1921 FS_SYNC_FL | \
1922 FS_IMMUTABLE_FL | \
1923 FS_APPEND_FL | \
1924 FS_NODUMP_FL | \
1925 FS_NOATIME_FL | \
4c8ff709 1926 FS_NOCOMP_FL | \
36098557 1927 FS_DIRSYNC_FL | \
2c2eb7a3
DR		 1928 FS_PROJINHERIT_FL | \
1929 FS_CASEFOLD_FL)
36098557
EB		 1930
1931/* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
1932static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
1933{
1934 u32 fsflags = 0;
1935 int i;
1936
1937 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1938 if (iflags & f2fs_fsflags_map[i].iflag)
1939 fsflags |= f2fs_fsflags_map[i].fsflag;
1940
1941 return fsflags;
1942}
1943
1944/* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
1945static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
1946{
1947 u32 iflags = 0;
1948 int i;
1949
1950 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1951 if (fsflags & f2fs_fsflags_map[i].fsflag)
1952 iflags |= f2fs_fsflags_map[i].iflag;
1953
1954 return iflags;
1955}
1956
d49f3e89
CY		 1957static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1958{
1959 struct inode *inode = file_inode(filp);
1960
1961 return put_user(inode->i_generation, (int __user *)arg);
1962}
1963
88b88a66
JK		 1964static int f2fs_ioc_start_atomic_write(struct file *filp)
1965{
1966 struct inode *inode = file_inode(filp);
743b620c
JK		 1967 struct f2fs_inode_info *fi = F2FS_I(inode);
1968 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f4c9c743 1969 int ret;
88b88a66 1970
21cb47be 1971 if (!inode_owner_or_capable(&init_user_ns, inode))
88b88a66
JK		 1972 return -EACCES;
1973
e811898c
JK		 1974 if (!S_ISREG(inode->i_mode))
1975 return -EINVAL;
1976
038d0698
CY		 1977 if (filp->f_flags & O_DIRECT)
1978 return -EINVAL;
1979
7fb17fe4
CY		 1980 ret = mnt_want_write_file(filp);
1981 if (ret)
1982 return ret;
1983
0fac558b
CY		 1984 inode_lock(inode);
1985
4c8ff709
CY		 1986 f2fs_disable_compressed_file(inode);
1987
455e3a58
JK		 1988 if (f2fs_is_atomic_file(inode)) {
1989 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
1990 ret = -EINVAL;
7fb17fe4 1991 goto out;
455e3a58 1992 }
88b88a66 1993
f4c9c743
CY		 1994 ret = f2fs_convert_inline_inode(inode);
1995 if (ret)
7fb17fe4 1996 goto out;
88b88a66 1997
6f8d4455
JK		 1998 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1999
31867b23
JK		 2000 /*
2001 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
2002 * f2fs_is_atomic_file.
2003 */
2004 if (get_dirty_pages(inode))
dcbb4c10
JP		 2005 f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
2006 inode->i_ino, get_dirty_pages(inode));
c27753d6 2007 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
6f8d4455
JK		 2008 if (ret) {
2009 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2010 goto out;
6f8d4455 2011 }
31867b23 2012
743b620c
JK		 2013 spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
2014 if (list_empty(&fi->inmem_ilist))
2015 list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
677017d1 2016 sbi->atomic_files++;
743b620c
JK		 2017 spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
2018
2019 /* add inode in inmem_list first and set atomic_file */
054afda9 2020 set_inode_flag(inode, FI_ATOMIC_FILE);
2ef79ecb 2021 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
6f8d4455 2022 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2023
6f8d4455 2024 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7a10f017 2025 F2FS_I(inode)->inmem_task = current;
26a28a0c 2026 stat_update_max_atomic_write(inode);
684ca7e5 2027out:
0fac558b 2028 inode_unlock(inode);
7fb17fe4 2029 mnt_drop_write_file(filp);
c27753d6 2030 return ret;
88b88a66
JK		 2031}
2032
2033static int f2fs_ioc_commit_atomic_write(struct file *filp)
2034{
2035 struct inode *inode = file_inode(filp);
2036 int ret;
2037
21cb47be 2038 if (!inode_owner_or_capable(&init_user_ns, inode))
88b88a66
JK		 2039 return -EACCES;
2040
2041 ret = mnt_want_write_file(filp);
2042 if (ret)
2043 return ret;
2044
6f8d4455 2045 f2fs_balance_fs(F2FS_I_SB(inode), true);
0fac558b 2046
6f8d4455 2047 inode_lock(inode);
1dc0f899 2048
b169c3c5
CY		 2049 if (f2fs_is_volatile_file(inode)) {
2050 ret = -EINVAL;
7fb17fe4 2051 goto err_out;
b169c3c5 2052 }
7fb17fe4 2053
6282adbf 2054 if (f2fs_is_atomic_file(inode)) {
4d57b86d 2055 ret = f2fs_commit_inmem_pages(inode);
5fe45743 2056 if (ret)
edb27dee 2057 goto err_out;
5fe45743 2058
26a28a0c 2059 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
743b620c
JK		 2060 if (!ret)
2061 f2fs_drop_inmem_pages(inode);
26a28a0c 2062 } else {
774e1b78 2063 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
6282adbf 2064 }
edb27dee 2065err_out:
2ef79ecb
CY		 2066 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
2067 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2068 ret = -EINVAL;
2069 }
0fac558b 2070 inode_unlock(inode);
88b88a66
JK		 2071 mnt_drop_write_file(filp);
2072 return ret;
2073}
2074
02a1335f
JK		 2075static int f2fs_ioc_start_volatile_write(struct file *filp)
2076{
2077 struct inode *inode = file_inode(filp);
f4c9c743 2078 int ret;
02a1335f 2079
21cb47be 2080 if (!inode_owner_or_capable(&init_user_ns, inode))
02a1335f
JK		 2081 return -EACCES;
2082
8ff0971f
CY		 2083 if (!S_ISREG(inode->i_mode))
2084 return -EINVAL;
2085
7fb17fe4
CY		 2086 ret = mnt_want_write_file(filp);
2087 if (ret)
2088 return ret;
2089
0fac558b
CY		 2090 inode_lock(inode);
2091
1e84371f 2092 if (f2fs_is_volatile_file(inode))
7fb17fe4 2093 goto out;
1e84371f 2094
f4c9c743
CY		 2095 ret = f2fs_convert_inline_inode(inode);
2096 if (ret)
7fb17fe4 2097 goto out;
b3d208f9 2098
648d50ba
CY		 2099 stat_inc_volatile_write(inode);
2100 stat_update_max_volatile_write(inode);
2101
91942321 2102 set_inode_flag(inode, FI_VOLATILE_FILE);
d0239e1b 2103 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2104out:
0fac558b 2105 inode_unlock(inode);
7fb17fe4
CY		 2106 mnt_drop_write_file(filp);
2107 return ret;
02a1335f
JK		 2108}
2109
1e84371f
JK		 2110static int f2fs_ioc_release_volatile_write(struct file *filp)
2111{
2112 struct inode *inode = file_inode(filp);
7fb17fe4 2113 int ret;
1e84371f 2114
21cb47be 2115 if (!inode_owner_or_capable(&init_user_ns, inode))
1e84371f
JK		 2116 return -EACCES;
2117
7fb17fe4
CY		 2118 ret = mnt_want_write_file(filp);
2119 if (ret)
2120 return ret;
2121
0fac558b
CY		 2122 inode_lock(inode);
2123
1e84371f 2124 if (!f2fs_is_volatile_file(inode))
7fb17fe4 2125 goto out;
1e84371f 2126
7fb17fe4
CY		 2127 if (!f2fs_is_first_block_written(inode)) {
2128 ret = truncate_partial_data_page(inode, 0, true);
2129 goto out;
2130 }
3c6c2beb 2131
7fb17fe4
CY		 2132 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
2133out:
0fac558b 2134 inode_unlock(inode);
7fb17fe4
CY		 2135 mnt_drop_write_file(filp);
2136 return ret;
1e84371f
JK		 2137}
2138
2139static int f2fs_ioc_abort_volatile_write(struct file *filp)
2140{
2141 struct inode *inode = file_inode(filp);
2142 int ret;
2143
21cb47be 2144 if (!inode_owner_or_capable(&init_user_ns, inode))
1e84371f
JK		 2145 return -EACCES;
2146
2147 ret = mnt_want_write_file(filp);
2148 if (ret)
2149 return ret;
2150
0fac558b
CY		 2151 inode_lock(inode);
2152
26dc3d44 2153 if (f2fs_is_atomic_file(inode))
4d57b86d 2154 f2fs_drop_inmem_pages(inode);
732d5648 2155 if (f2fs_is_volatile_file(inode)) {
91942321 2156 clear_inode_flag(inode, FI_VOLATILE_FILE);
648d50ba 2157 stat_dec_volatile_write(inode);
608514de 2158 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
732d5648 2159 }
de6a8ec9 2160
455e3a58
JK		 2161 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2162
0fac558b
CY		 2163 inode_unlock(inode);
2164
1e84371f 2165 mnt_drop_write_file(filp);
d0239e1b 2166 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1e84371f
JK		 2167 return ret;
2168}
2169
1abff93d
JK		 2170static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2171{
2172 struct inode *inode = file_inode(filp);
2173 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2174 struct super_block *sb = sbi->sb;
2175 __u32 in;
2a96d8ad 2176 int ret = 0;
1abff93d
JK		 2177
2178 if (!capable(CAP_SYS_ADMIN))
2179 return -EPERM;
2180
2181 if (get_user(in, (__u32 __user *)arg))
2182 return -EFAULT;
2183
60b2b4ee
ST		 2184 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2185 ret = mnt_want_write_file(filp);
8626441f
CY		 2186 if (ret) {
2187 if (ret == -EROFS) {
2188 ret = 0;
2189 f2fs_stop_checkpoint(sbi, false);
2190 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2191 trace_f2fs_shutdown(sbi, in, ret);
2192 }
60b2b4ee 2193 return ret;
8626441f 2194 }
60b2b4ee 2195 }
7fb17fe4 2196
1abff93d
JK		 2197 switch (in) {
2198 case F2FS_GOING_DOWN_FULLSYNC:
040f04bd
CH		 2199 ret = freeze_bdev(sb->s_bdev);
2200 if (ret)
d027c484 2201 goto out;
040f04bd
CH		 2202 f2fs_stop_checkpoint(sbi, false);
2203 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2204 thaw_bdev(sb->s_bdev);
1abff93d
JK		 2205 break;
2206 case F2FS_GOING_DOWN_METASYNC:
2207 /* do checkpoint only */
d027c484
CY		 2208 ret = f2fs_sync_fs(sb, 1);
2209 if (ret)
2210 goto out;
38f91ca8 2211 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2212 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d
JK		 2213 break;
2214 case F2FS_GOING_DOWN_NOSYNC:
38f91ca8 2215 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2216 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d 2217 break;
c912a829 2218 case F2FS_GOING_DOWN_METAFLUSH:
4d57b86d 2219 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
38f91ca8 2220 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2221 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
c912a829 2222 break;
0cd6d9b0
JK		 2223 case F2FS_GOING_DOWN_NEED_FSCK:
2224 set_sbi_flag(sbi, SBI_NEED_FSCK);
db610a64
JK		 2225 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2226 set_sbi_flag(sbi, SBI_IS_DIRTY);
0cd6d9b0
JK		 2227 /* do checkpoint only */
2228 ret = f2fs_sync_fs(sb, 1);
db610a64 2229 goto out;
1abff93d 2230 default:
7fb17fe4
CY		 2231 ret = -EINVAL;
2232 goto out;
1abff93d 2233 }
7950e9ac 2234
4d57b86d
CY		 2235 f2fs_stop_gc_thread(sbi);
2236 f2fs_stop_discard_thread(sbi);
7950e9ac 2237
4d57b86d 2238 f2fs_drop_discard_cmd(sbi);
7950e9ac
CY		 2239 clear_opt(sbi, DISCARD);
2240
d0239e1b 2241 f2fs_update_time(sbi, REQ_TIME);
7fb17fe4 2242out:
60b2b4ee
ST		 2243 if (in != F2FS_GOING_DOWN_FULLSYNC)
2244 mnt_drop_write_file(filp);
559e87c4
CY		 2245
2246 trace_f2fs_shutdown(sbi, in, ret);
2247
7fb17fe4 2248 return ret;
1abff93d
JK		 2249}
2250
52656e6c
JK		 2251static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2252{
2253 struct inode *inode = file_inode(filp);
2254 struct super_block *sb = inode->i_sb;
2255 struct request_queue *q = bdev_get_queue(sb->s_bdev);
2256 struct fstrim_range range;
2257 int ret;
4b2fecc8 2258
52656e6c
JK		 2259 if (!capable(CAP_SYS_ADMIN))
2260 return -EPERM;
4b2fecc8 2261
7d20c8ab 2262 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
52656e6c 2263 return -EOPNOTSUPP;
4b2fecc8 2264
52656e6c
JK		 2265 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2266 sizeof(range)))
2267 return -EFAULT;
4b2fecc8 2268
7fb17fe4
CY		 2269 ret = mnt_want_write_file(filp);
2270 if (ret)
2271 return ret;
2272
52656e6c
JK		 2273 range.minlen = max((unsigned int)range.minlen,
2274 q->limits.discard_granularity);
2275 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
7fb17fe4 2276 mnt_drop_write_file(filp);
52656e6c
JK		 2277 if (ret < 0)
2278 return ret;
4b2fecc8 2279
52656e6c
JK		 2280 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2281 sizeof(range)))
2282 return -EFAULT;
d0239e1b 2283 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
52656e6c
JK		 2284 return 0;
2285}
2286
f424f664
JK		 2287static bool uuid_is_nonzero(__u8 u[16])
2288{
2289 int i;
2290
2291 for (i = 0; i < 16; i++)
2292 if (u[i])
2293 return true;
2294 return false;
2295}
2296
2297static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2298{
f424f664
JK		 2299 struct inode *inode = file_inode(filp);
2300
7beb01f7 2301 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
ead710b7
CY		 2302 return -EOPNOTSUPP;
2303
d0239e1b 2304 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2305
db717d8e 2306 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
f424f664
JK		 2307}
2308
2309static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2310{
7beb01f7 2311 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
ead710b7 2312 return -EOPNOTSUPP;
db717d8e 2313 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
f424f664
JK		 2314}
2315
2316static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2317{
2318 struct inode *inode = file_inode(filp);
2319 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2320 int err;
2321
7beb01f7 2322 if (!f2fs_sb_has_encrypt(sbi))
f424f664
JK		 2323 return -EOPNOTSUPP;
2324
f424f664
JK		 2325 err = mnt_want_write_file(filp);
2326 if (err)
2327 return err;
2328
846ae671 2329 down_write(&sbi->sb_lock);
d0d3f1b3
CY		 2330
2331 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2332 goto got_it;
2333
f424f664
JK		 2334 /* update superblock with uuid */
2335 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2336
c5bda1c8 2337 err = f2fs_commit_super(sbi, false);
f424f664
JK		 2338 if (err) {
2339 /* undo new data */
2340 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
d0d3f1b3 2341 goto out_err;
f424f664
JK		 2342 }
2343got_it:
2344 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2345 16))
d0d3f1b3
CY		 2346 err = -EFAULT;
2347out_err:
846ae671 2348 up_write(&sbi->sb_lock);
d0d3f1b3
CY		 2349 mnt_drop_write_file(filp);
2350 return err;
f424f664
JK		 2351}
2352
8ce589c7
EB		 2353static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
2354 unsigned long arg)
2355{
2356 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2357 return -EOPNOTSUPP;
2358
2359 return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
2360}
2361
2362static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
2363{
2364 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2365 return -EOPNOTSUPP;
2366
2367 return fscrypt_ioctl_add_key(filp, (void __user *)arg);
2368}
2369
2370static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
2371{
2372 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2373 return -EOPNOTSUPP;
2374
2375 return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
2376}
2377
2378static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
2379 unsigned long arg)
2380{
2381 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2382 return -EOPNOTSUPP;
2383
2384 return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
2385}
2386
2387static int f2fs_ioc_get_encryption_key_status(struct file *filp,
2388 unsigned long arg)
2389{
2390 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2391 return -EOPNOTSUPP;
2392
2393 return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
2394}
2395
ee446e1a
EB		 2396static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
2397{
2398 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2399 return -EOPNOTSUPP;
2400
2401 return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
2402}
2403
c1c1b583
CY		 2404static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2405{
2406 struct inode *inode = file_inode(filp);
2407 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d530d4d8 2408 __u32 sync;
7fb17fe4 2409 int ret;
c1c1b583
CY		 2410
2411 if (!capable(CAP_SYS_ADMIN))
2412 return -EPERM;
2413
d530d4d8 2414 if (get_user(sync, (__u32 __user *)arg))
c1c1b583
CY		 2415 return -EFAULT;
2416
d530d4d8
CY		 2417 if (f2fs_readonly(sbi->sb))
2418 return -EROFS;
c1c1b583 2419
7fb17fe4
CY		 2420 ret = mnt_want_write_file(filp);
2421 if (ret)
2422 return ret;
2423
d530d4d8 2424 if (!sync) {
fb24fea7 2425 if (!down_write_trylock(&sbi->gc_lock)) {
7fb17fe4
CY		 2426 ret = -EBUSY;
2427 goto out;
2428 }
d530d4d8 2429 } else {
fb24fea7 2430 down_write(&sbi->gc_lock);
c1c1b583
CY		 2431 }
2432
7dede886 2433 ret = f2fs_gc(sbi, sync, true, false, NULL_SEGNO);
7fb17fe4
CY		 2434out:
2435 mnt_drop_write_file(filp);
2436 return ret;
c1c1b583
CY		 2437}
2438
34178b1b 2439static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
34dc77ad 2440{
34178b1b 2441 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
34dc77ad
JK		 2442 u64 end;
2443 int ret;
2444
2445 if (!capable(CAP_SYS_ADMIN))
2446 return -EPERM;
34dc77ad
JK		 2447 if (f2fs_readonly(sbi->sb))
2448 return -EROFS;
2449
34178b1b
CY		 2450 end = range->start + range->len;
2451 if (end < range->start || range->start < MAIN_BLKADDR(sbi) ||
fbbf7799 2452 end >= MAX_BLKADDR(sbi))
b82f6e34 2453 return -EINVAL;
b82f6e34 2454
34dc77ad
JK		 2455 ret = mnt_want_write_file(filp);
2456 if (ret)
2457 return ret;
2458
34dc77ad 2459do_more:
34178b1b 2460 if (!range->sync) {
fb24fea7 2461 if (!down_write_trylock(&sbi->gc_lock)) {
34dc77ad
JK		 2462 ret = -EBUSY;
2463 goto out;
2464 }
2465 } else {
fb24fea7 2466 down_write(&sbi->gc_lock);
34dc77ad
JK		 2467 }
2468
7dede886
CY		 2469 ret = f2fs_gc(sbi, range->sync, true, false,
2470 GET_SEGNO(sbi, range->start));
97767500
QZ		 2471 if (ret) {
2472 if (ret == -EBUSY)
2473 ret = -EAGAIN;
2474 goto out;
2475 }
34178b1b
CY		 2476 range->start += BLKS_PER_SEC(sbi);
2477 if (range->start <= end)
34dc77ad
JK		 2478 goto do_more;
2479out:
2480 mnt_drop_write_file(filp);
2481 return ret;
2482}
2483
34178b1b
CY		 2484static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2485{
2486 struct f2fs_gc_range range;
2487
2488 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2489 sizeof(range)))
2490 return -EFAULT;
2491 return __f2fs_ioc_gc_range(filp, &range);
2492}
2493
059c0648 2494static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
456b88e4
CY		 2495{
2496 struct inode *inode = file_inode(filp);
2497 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7fb17fe4 2498 int ret;
456b88e4
CY		 2499
2500 if (!capable(CAP_SYS_ADMIN))
2501 return -EPERM;
2502
2503 if (f2fs_readonly(sbi->sb))
2504 return -EROFS;
2505
4354994f 2506 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
dcbb4c10 2507 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
4354994f
DR		 2508 return -EINVAL;
2509 }
2510
7fb17fe4
CY		 2511 ret = mnt_want_write_file(filp);
2512 if (ret)
2513 return ret;
2514
2515 ret = f2fs_sync_fs(sbi->sb, 1);
2516
2517 mnt_drop_write_file(filp);
2518 return ret;
456b88e4
CY		 2519}
2520
d323d005
CY		 2521static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2522 struct file *filp,
2523 struct f2fs_defragment *range)
2524{
2525 struct inode *inode = file_inode(filp);
f3d98e74 2526 struct f2fs_map_blocks map = { .m_next_extent = NULL,
5f029c04 2527 .m_seg_type = NO_CHECK_TYPE,
f4f0b677 2528 .m_may_create = false };
1061fd48 2529 struct extent_info ei = {0, 0, 0};
f3d98e74 2530 pgoff_t pg_start, pg_end, next_pgofs;
3519e3f9 2531 unsigned int blk_per_seg = sbi->blocks_per_seg;
d323d005 2532 unsigned int total = 0, sec_num;
d323d005
CY		 2533 block_t blk_end = 0;
2534 bool fragmented = false;
2535 int err;
2536
2537 /* if in-place-update policy is enabled, don't waste time here */
4d57b86d 2538 if (f2fs_should_update_inplace(inode, NULL))
d323d005
CY		 2539 return -EINVAL;
2540
09cbfeaf
KS		 2541 pg_start = range->start >> PAGE_SHIFT;
2542 pg_end = (range->start + range->len) >> PAGE_SHIFT;
d323d005 2543
2c4db1a6 2544 f2fs_balance_fs(sbi, true);
d323d005 2545
5955102c 2546 inode_lock(inode);
d323d005
CY		 2547
2548 /* writeback all dirty pages in the range */
2549 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
d8fe4f0e 2550 range->start + range->len - 1);
d323d005
CY		 2551 if (err)
2552 goto out;
2553
2554 /*
2555 * lookup mapping info in extent cache, skip defragmenting if physical
2556 * block addresses are continuous.
2557 */
2558 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2559 if (ei.fofs + ei.len >= pg_end)
2560 goto out;
2561 }
2562
2563 map.m_lblk = pg_start;
f3d98e74 2564 map.m_next_pgofs = &next_pgofs;
d323d005
CY		 2565
2566 /*
2567 * lookup mapping info in dnode page cache, skip defragmenting if all
2568 * physical block addresses are continuous even if there are hole(s)
2569 * in logical blocks.
2570 */
2571 while (map.m_lblk < pg_end) {
a1c1e9b7 2572 map.m_len = pg_end - map.m_lblk;
f2220c7f 2573 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2574 if (err)
2575 goto out;
2576
2577 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2578 map.m_lblk = next_pgofs;
d323d005
CY		 2579 continue;
2580 }
2581
25a912e5 2582 if (blk_end && blk_end != map.m_pblk)
d323d005 2583 fragmented = true;
25a912e5
CY		 2584
2585 /* record total count of block that we're going to move */
2586 total += map.m_len;
2587
d323d005
CY		 2588 blk_end = map.m_pblk + map.m_len;
2589
2590 map.m_lblk += map.m_len;
d323d005
CY		 2591 }
2592
d3a1a0e1
CY		 2593 if (!fragmented) {
2594 total = 0;
d323d005 2595 goto out;
d3a1a0e1 2596 }
d323d005 2597
f91108b8 2598 sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
d323d005
CY		 2599
2600 /*
2601 * make sure there are enough free section for LFS allocation, this can
2602 * avoid defragment running in SSR mode when free section are allocated
2603 * intensively
2604 */
7f3037a5 2605 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
d323d005
CY		 2606 err = -EAGAIN;
2607 goto out;
2608 }
2609
25a912e5
CY		 2610 map.m_lblk = pg_start;
2611 map.m_len = pg_end - pg_start;
2612 total = 0;
2613
d323d005
CY		 2614 while (map.m_lblk < pg_end) {
2615 pgoff_t idx;
2616 int cnt = 0;
2617
2618do_map:
a1c1e9b7 2619 map.m_len = pg_end - map.m_lblk;
f2220c7f 2620 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2621 if (err)
2622 goto clear_out;
2623
2624 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2625 map.m_lblk = next_pgofs;
d3a1a0e1 2626 goto check;
d323d005
CY		 2627 }
2628
91942321 2629 set_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2630
2631 idx = map.m_lblk;
2632 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2633 struct page *page;
2634
4d57b86d 2635 page = f2fs_get_lock_data_page(inode, idx, true);
d323d005
CY		 2636 if (IS_ERR(page)) {
2637 err = PTR_ERR(page);
2638 goto clear_out;
2639 }
2640
2641 set_page_dirty(page);
2642 f2fs_put_page(page, 1);
2643
2644 idx++;
2645 cnt++;
2646 total++;
2647 }
2648
2649 map.m_lblk = idx;
d3a1a0e1
CY		 2650check:
2651 if (map.m_lblk < pg_end && cnt < blk_per_seg)
d323d005
CY		 2652 goto do_map;
2653
91942321 2654 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2655
2656 err = filemap_fdatawrite(inode->i_mapping);
2657 if (err)
2658 goto out;
2659 }
2660clear_out:
91942321 2661 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005 2662out:
5955102c 2663 inode_unlock(inode);
d323d005 2664 if (!err)
09cbfeaf 2665 range->len = (u64)total << PAGE_SHIFT;
d323d005
CY		 2666 return err;
2667}
2668
2669static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2670{
2671 struct inode *inode = file_inode(filp);
2672 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2673 struct f2fs_defragment range;
2674 int err;
2675
2676 if (!capable(CAP_SYS_ADMIN))
2677 return -EPERM;
2678
7eab0c0d 2679 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
d323d005
CY		 2680 return -EINVAL;
2681
d7563861
KM		 2682 if (f2fs_readonly(sbi->sb))
2683 return -EROFS;
d323d005
CY		 2684
2685 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
d7563861
KM		 2686 sizeof(range)))
2687 return -EFAULT;
d323d005
CY		 2688
2689 /* verify alignment of offset & size */
d7563861
KM		 2690 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2691 return -EINVAL;
d323d005 2692
1941d7bc 2693 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
6d1451bf 2694 max_file_blocks(inode)))
d7563861
KM		 2695 return -EINVAL;
2696
2697 err = mnt_want_write_file(filp);
2698 if (err)
2699 return err;
1941d7bc 2700
d323d005 2701 err = f2fs_defragment_range(sbi, filp, &range);
d7563861
KM		 2702 mnt_drop_write_file(filp);
2703
d0239e1b 2704 f2fs_update_time(sbi, REQ_TIME);
d323d005 2705 if (err < 0)
d7563861 2706 return err;
d323d005
CY		 2707
2708 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2709 sizeof(range)))
d7563861
KM		 2710 return -EFAULT;
2711
2712 return 0;
d323d005
CY		 2713}
2714
4dd6f977
JK		 2715static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2716 struct file *file_out, loff_t pos_out, size_t len)
2717{
2718 struct inode *src = file_inode(file_in);
2719 struct inode *dst = file_inode(file_out);
2720 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2721 size_t olen = len, dst_max_i_size = 0;
2722 size_t dst_osize;
2723 int ret;
2724
2725 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2726 src->i_sb != dst->i_sb)
2727 return -EXDEV;
2728
2729 if (unlikely(f2fs_readonly(src->i_sb)))
2730 return -EROFS;
2731
fe8494bf
CY		 2732 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2733 return -EINVAL;
4dd6f977 2734
62230e0d 2735 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
4dd6f977
JK		 2736 return -EOPNOTSUPP;
2737
aad1383c
DR		 2738 if (pos_out < 0 || pos_in < 0)
2739 return -EINVAL;
2740
d95fd91c
FL		 2741 if (src == dst) {
2742 if (pos_in == pos_out)
2743 return 0;
2744 if (pos_out > pos_in && pos_out < pos_in + len)
2745 return -EINVAL;
2746 }
2747
4dd6f977 2748 inode_lock(src);
20a3d61d 2749 if (src != dst) {
bb06664a
CY		 2750 ret = -EBUSY;
2751 if (!inode_trylock(dst))
2752 goto out;
20a3d61d 2753 }
4dd6f977
JK		 2754
2755 ret = -EINVAL;
2756 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2757 goto out_unlock;
2758 if (len == 0)
2759 olen = len = src->i_size - pos_in;
2760 if (pos_in + len == src->i_size)
2761 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2762 if (len == 0) {
2763 ret = 0;
2764 goto out_unlock;
2765 }
2766
2767 dst_osize = dst->i_size;
2768 if (pos_out + olen > dst->i_size)
2769 dst_max_i_size = pos_out + olen;
2770
2771 /* verify the end result is block aligned */
2772 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2773 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2774 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2775 goto out_unlock;
2776
2777 ret = f2fs_convert_inline_inode(src);
2778 if (ret)
2779 goto out_unlock;
2780
2781 ret = f2fs_convert_inline_inode(dst);
2782 if (ret)
2783 goto out_unlock;
2784
2785 /* write out all dirty pages from offset */
2786 ret = filemap_write_and_wait_range(src->i_mapping,
2787 pos_in, pos_in + len);
2788 if (ret)
2789 goto out_unlock;
2790
2791 ret = filemap_write_and_wait_range(dst->i_mapping,
2792 pos_out, pos_out + len);
2793 if (ret)
2794 goto out_unlock;
2795
2796 f2fs_balance_fs(sbi, true);
6f8d4455
JK		 2797
2798 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2799 if (src != dst) {
2800 ret = -EBUSY;
2801 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2802 goto out_src;
2803 }
2804
4dd6f977 2805 f2fs_lock_op(sbi);
61e4da11
FL		 2806 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2807 pos_out >> F2FS_BLKSIZE_BITS,
2808 len >> F2FS_BLKSIZE_BITS, false);
4dd6f977
JK		 2809
2810 if (!ret) {
2811 if (dst_max_i_size)
2812 f2fs_i_size_write(dst, dst_max_i_size);
2813 else if (dst_osize != dst->i_size)
2814 f2fs_i_size_write(dst, dst_osize);
2815 }
2816 f2fs_unlock_op(sbi);
6f8d4455
JK		 2817
2818 if (src != dst)
b2532c69 2819 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
6f8d4455
JK		 2820out_src:
2821 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2822out_unlock:
2823 if (src != dst)
4dd6f977 2824 inode_unlock(dst);
20a3d61d 2825out:
4dd6f977
JK		 2826 inode_unlock(src);
2827 return ret;
2828}
2829
34178b1b
CY		 2830static int __f2fs_ioc_move_range(struct file *filp,
2831 struct f2fs_move_range *range)
4dd6f977 2832{
4dd6f977
JK		 2833 struct fd dst;
2834 int err;
2835
2836 if (!(filp->f_mode & FMODE_READ) ||
2837 !(filp->f_mode & FMODE_WRITE))
2838 return -EBADF;
2839
34178b1b 2840 dst = fdget(range->dst_fd);
4dd6f977
JK		 2841 if (!dst.file)
2842 return -EBADF;
2843
2844 if (!(dst.file->f_mode & FMODE_WRITE)) {
2845 err = -EBADF;
2846 goto err_out;
2847 }
2848
2849 err = mnt_want_write_file(filp);
2850 if (err)
2851 goto err_out;
2852
34178b1b
CY		 2853 err = f2fs_move_file_range(filp, range->pos_in, dst.file,
2854 range->pos_out, range->len);
4dd6f977
JK		 2855
2856 mnt_drop_write_file(filp);
4dd6f977
JK		 2857err_out:
2858 fdput(dst);
2859 return err;
2860}
2861
34178b1b
CY		 2862static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2863{
2864 struct f2fs_move_range range;
2865
2866 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2867 sizeof(range)))
2868 return -EFAULT;
2869 return __f2fs_ioc_move_range(filp, &range);
2870}
2871
e066b83c
JK		 2872static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2873{
2874 struct inode *inode = file_inode(filp);
2875 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2876 struct sit_info *sm = SIT_I(sbi);
2877 unsigned int start_segno = 0, end_segno = 0;
2878 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2879 struct f2fs_flush_device range;
2880 int ret;
2881
2882 if (!capable(CAP_SYS_ADMIN))
2883 return -EPERM;
2884
2885 if (f2fs_readonly(sbi->sb))
2886 return -EROFS;
2887
4354994f
DR		 2888 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2889 return -EINVAL;
2890
e066b83c
JK		 2891 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2892 sizeof(range)))
2893 return -EFAULT;
2894
0916878d 2895 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2c70c5e3 2896 __is_large_section(sbi)) {
dcbb4c10
JP		 2897 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2898 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
e066b83c
JK		 2899 return -EINVAL;
2900 }
2901
2902 ret = mnt_want_write_file(filp);
2903 if (ret)
2904 return ret;
2905
2906 if (range.dev_num != 0)
2907 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2908 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2909
2910 start_segno = sm->last_victim[FLUSH_DEVICE];
2911 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2912 start_segno = dev_start_segno;
2913 end_segno = min(start_segno + range.segments, dev_end_segno);
2914
2915 while (start_segno < end_segno) {
fb24fea7 2916 if (!down_write_trylock(&sbi->gc_lock)) {
e066b83c
JK		 2917 ret = -EBUSY;
2918 goto out;
2919 }
2920 sm->last_victim[GC_CB] = end_segno + 1;
2921 sm->last_victim[GC_GREEDY] = end_segno + 1;
2922 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
7dede886 2923 ret = f2fs_gc(sbi, true, true, true, start_segno);
e066b83c
JK		 2924 if (ret == -EAGAIN)
2925 ret = 0;
2926 else if (ret < 0)
2927 break;
2928 start_segno++;
2929 }
2930out:
2931 mnt_drop_write_file(filp);
2932 return ret;
2933}
2934
e65ef207
JK		 2935static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2936{
2937 struct inode *inode = file_inode(filp);
2938 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2939
2940 /* Must validate to set it with SQLite behavior in Android. */
2941 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2942
2943 return put_user(sb_feature, (u32 __user *)arg);
2944}
e066b83c 2945
2c1d0305 2946#ifdef CONFIG_QUOTA
78130819
CY		 2947int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2948{
2949 struct dquot *transfer_to[MAXQUOTAS] = {};
2950 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2951 struct super_block *sb = sbi->sb;
2952 int err = 0;
2953
2954 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2955 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2956 err = __dquot_transfer(inode, transfer_to);
2957 if (err)
2958 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2959 dqput(transfer_to[PRJQUOTA]);
2960 }
2961 return err;
2962}
2963
9b1bb01c 2964static int f2fs_ioc_setproject(struct inode *inode, __u32 projid)
2c1d0305 2965{
2c1d0305
CY		 2966 struct f2fs_inode_info *fi = F2FS_I(inode);
2967 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2c1d0305
CY		 2968 struct page *ipage;
2969 kprojid_t kprojid;
2970 int err;
2971
7beb01f7 2972 if (!f2fs_sb_has_project_quota(sbi)) {
2c1d0305
CY		 2973 if (projid != F2FS_DEF_PROJID)
2974 return -EOPNOTSUPP;
2975 else
2976 return 0;
2977 }
2978
2979 if (!f2fs_has_extra_attr(inode))
2980 return -EOPNOTSUPP;
2981
2982 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2983
2984 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
2985 return 0;
2986
2c1d0305 2987 err = -EPERM;
2c1d0305
CY		 2988 /* Is it quota file? Do not allow user to mess with it */
2989 if (IS_NOQUOTA(inode))
c8e92757 2990 return err;
2c1d0305 2991
4d57b86d 2992 ipage = f2fs_get_node_page(sbi, inode->i_ino);
c8e92757
WS		 2993 if (IS_ERR(ipage))
2994 return PTR_ERR(ipage);
2c1d0305
CY		 2995
2996 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
2997 i_projid)) {
2998 err = -EOVERFLOW;
2999 f2fs_put_page(ipage, 1);
c8e92757 3000 return err;
2c1d0305
CY		 3001 }
3002 f2fs_put_page(ipage, 1);
3003
c22aecd7
CY		 3004 err = dquot_initialize(inode);
3005 if (err)
c8e92757 3006 return err;
2c1d0305 3007
78130819
CY		 3008 f2fs_lock_op(sbi);
3009 err = f2fs_transfer_project_quota(inode, kprojid);
3010 if (err)
3011 goto out_unlock;
2c1d0305
CY		 3012
3013 F2FS_I(inode)->i_projid = kprojid;
3014 inode->i_ctime = current_time(inode);
2c1d0305 3015 f2fs_mark_inode_dirty_sync(inode, true);
78130819
CY		 3016out_unlock:
3017 f2fs_unlock_op(sbi);
2c1d0305
CY		 3018 return err;
3019}
3020#else
78130819
CY		 3021int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
3022{
3023 return 0;
3024}
3025
9b1bb01c 3026static int f2fs_ioc_setproject(struct inode *inode, __u32 projid)
2c1d0305
CY		 3027{
3028 if (projid != F2FS_DEF_PROJID)
3029 return -EOPNOTSUPP;
3030 return 0;
3031}
3032#endif
3033
9b1bb01c 3034int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
2c1d0305 3035{
9b1bb01c 3036 struct inode *inode = d_inode(dentry);
2c1d0305 3037 struct f2fs_inode_info *fi = F2FS_I(inode);
9b1bb01c 3038 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
2c1d0305 3039
9b1bb01c
MS		 3040 if (IS_ENCRYPTED(inode))
3041 fsflags |= FS_ENCRYPT_FL;
3042 if (IS_VERITY(inode))
3043 fsflags |= FS_VERITY_FL;
3044 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
3045 fsflags |= FS_INLINE_DATA_FL;
3046 if (is_inode_flag_set(inode, FI_PIN_FILE))
3047 fsflags |= FS_NOCOW_FL;
3048
3049 fileattr_fill_flags(fa, fsflags & F2FS_GETTABLE_FS_FL);
2c1d0305 3050
7beb01f7 3051 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
6fc93c4e 3052 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
2c1d0305 3053
c8e92757
WS		 3054 return 0;
3055}
3056
9b1bb01c
MS		 3057int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3058 struct dentry *dentry, struct fileattr *fa)
2c1d0305 3059{
9b1bb01c
MS		 3060 struct inode *inode = d_inode(dentry);
3061 u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL;
36098557 3062 u32 iflags;
2c1d0305
CY		 3063 int err;
3064
9b1bb01c
MS		 3065 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
3066 return -EIO;
3067 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
3068 return -ENOSPC;
3069 if (fsflags & ~F2FS_GETTABLE_FS_FL)
2c1d0305 3070 return -EOPNOTSUPP;
9b1bb01c
MS		 3071 fsflags &= F2FS_SETTABLE_FS_FL;
3072 if (!fa->flags_valid)
3073 mask &= FS_COMMON_FL;
2c1d0305 3074
9b1bb01c 3075 iflags = f2fs_fsflags_to_iflags(fsflags);
36098557 3076 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
2c1d0305
CY		 3077 return -EOPNOTSUPP;
3078
9b1bb01c
MS		 3079 err = f2fs_setflags_common(inode, iflags, f2fs_fsflags_to_iflags(mask));
3080 if (!err)
3081 err = f2fs_ioc_setproject(inode, fa->fsx_projid);
2c1d0305 3082
c8e92757 3083 return err;
2c1d0305 3084}
e066b83c 3085
1ad71a27
JK		 3086int f2fs_pin_file_control(struct inode *inode, bool inc)
3087{
3088 struct f2fs_inode_info *fi = F2FS_I(inode);
3089 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3090
3091 /* Use i_gc_failures for normal file as a risk signal. */
3092 if (inc)
2ef79ecb
CY		 3093 f2fs_i_gc_failures_write(inode,
3094 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
1ad71a27 3095
2ef79ecb 3096 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
dcbb4c10
JP		 3097 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
3098 __func__, inode->i_ino,
3099 fi->i_gc_failures[GC_FAILURE_PIN]);
1ad71a27
JK		 3100 clear_inode_flag(inode, FI_PIN_FILE);
3101 return -EAGAIN;
3102 }
3103 return 0;
3104}
3105
3106static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
3107{
3108 struct inode *inode = file_inode(filp);
3109 __u32 pin;
3110 int ret = 0;
3111
1ad71a27
JK		 3112 if (get_user(pin, (__u32 __user *)arg))
3113 return -EFAULT;
3114
3115 if (!S_ISREG(inode->i_mode))
3116 return -EINVAL;
3117
3118 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
3119 return -EROFS;
3120
3121 ret = mnt_want_write_file(filp);
3122 if (ret)
3123 return ret;
3124
3125 inode_lock(inode);
3126
4d57b86d 3127 if (f2fs_should_update_outplace(inode, NULL)) {
bb9e3bb8
CY		 3128 ret = -EINVAL;
3129 goto out;
3130 }
3131
1ad71a27
JK		 3132 if (!pin) {
3133 clear_inode_flag(inode, FI_PIN_FILE);
30933364 3134 f2fs_i_gc_failures_write(inode, 0);
1ad71a27
JK		 3135 goto done;
3136 }
3137
3138 if (f2fs_pin_file_control(inode, false)) {
3139 ret = -EAGAIN;
3140 goto out;
3141 }
4c8ff709 3142
1ad71a27
JK		 3143 ret = f2fs_convert_inline_inode(inode);
3144 if (ret)
3145 goto out;
3146
78134d03 3147 if (!f2fs_disable_compressed_file(inode)) {
4c8ff709
CY		 3148 ret = -EOPNOTSUPP;
3149 goto out;
3150 }
3151
1ad71a27 3152 set_inode_flag(inode, FI_PIN_FILE);
2ef79ecb 3153 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3154done:
3155 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3156out:
3157 inode_unlock(inode);
3158 mnt_drop_write_file(filp);
3159 return ret;
3160}
3161
3162static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3163{
3164 struct inode *inode = file_inode(filp);
3165 __u32 pin = 0;
3166
3167 if (is_inode_flag_set(inode, FI_PIN_FILE))
2ef79ecb 3168 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3169 return put_user(pin, (u32 __user *)arg);
3170}
3171
c4020b2d
CY		 3172int f2fs_precache_extents(struct inode *inode)
3173{
3174 struct f2fs_inode_info *fi = F2FS_I(inode);
3175 struct f2fs_map_blocks map;
3176 pgoff_t m_next_extent;
3177 loff_t end;
3178 int err;
3179
3180 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3181 return -EOPNOTSUPP;
3182
3183 map.m_lblk = 0;
3184 map.m_next_pgofs = NULL;
3185 map.m_next_extent = &m_next_extent;
3186 map.m_seg_type = NO_CHECK_TYPE;
f4f0b677 3187 map.m_may_create = false;
6d1451bf 3188 end = max_file_blocks(inode);
c4020b2d
CY		 3189
3190 while (map.m_lblk < end) {
3191 map.m_len = end - map.m_lblk;
3192
b2532c69 3193 down_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d 3194 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
b2532c69 3195 up_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d
CY		 3196 if (err)
3197 return err;
3198
3199 map.m_lblk = m_next_extent;
3200 }
3201
4f55dc2a 3202 return 0;
c4020b2d
CY		 3203}
3204
3205static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3206{
3207 return f2fs_precache_extents(file_inode(filp));
3208}
3209
04f0b2ea
QS		 3210static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3211{
3212 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3213 __u64 block_count;
04f0b2ea
QS		 3214
3215 if (!capable(CAP_SYS_ADMIN))
3216 return -EPERM;
3217
3218 if (f2fs_readonly(sbi->sb))
3219 return -EROFS;
3220
3221 if (copy_from_user(&block_count, (void __user *)arg,
3222 sizeof(block_count)))
3223 return -EFAULT;
3224
b4b10061 3225 return f2fs_resize_fs(sbi, block_count);
04f0b2ea
QS		 3226}
3227
95ae251f
EB		 3228static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
3229{
3230 struct inode *inode = file_inode(filp);
3231
3232 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3233
3234 if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
3235 f2fs_warn(F2FS_I_SB(inode),
833dcd35 3236 "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem",
95ae251f
EB		 3237 inode->i_ino);
3238 return -EOPNOTSUPP;
3239 }
3240
3241 return fsverity_ioctl_enable(filp, (const void __user *)arg);
3242}
3243
3244static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
3245{
3246 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3247 return -EOPNOTSUPP;
3248
3249 return fsverity_ioctl_measure(filp, (void __user *)arg);
3250}
3251
e17fe657
EB		 3252static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg)
3253{
3254 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3255 return -EOPNOTSUPP;
3256
3257 return fsverity_ioctl_read_metadata(filp, (const void __user *)arg);
3258}
3259
3357af8f 3260static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3261{
3262 struct inode *inode = file_inode(filp);
3263 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3264 char *vbuf;
3265 int count;
3266 int err = 0;
3267
3268 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3269 if (!vbuf)
3270 return -ENOMEM;
3271
3272 down_read(&sbi->sb_lock);
3273 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3274 ARRAY_SIZE(sbi->raw_super->volume_name),
3275 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3276 up_read(&sbi->sb_lock);
3277
3278 if (copy_to_user((char __user *)arg, vbuf,
3279 min(FSLABEL_MAX, count)))
3280 err = -EFAULT;
3281
c8eb7024 3282 kfree(vbuf);
4507847c
CY		 3283 return err;
3284}
3285
3357af8f 3286static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3287{
3288 struct inode *inode = file_inode(filp);
3289 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3290 char *vbuf;
3291 int err = 0;
3292
3293 if (!capable(CAP_SYS_ADMIN))
3294 return -EPERM;
3295
3296 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3297 if (IS_ERR(vbuf))
3298 return PTR_ERR(vbuf);
3299
3300 err = mnt_want_write_file(filp);
3301 if (err)
3302 goto out;
3303
3304 down_write(&sbi->sb_lock);
3305
3306 memset(sbi->raw_super->volume_name, 0,
3307 sizeof(sbi->raw_super->volume_name));
3308 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3309 sbi->raw_super->volume_name,
3310 ARRAY_SIZE(sbi->raw_super->volume_name));
3311
3312 err = f2fs_commit_super(sbi, false);
3313
3314 up_write(&sbi->sb_lock);
3315
3316 mnt_drop_write_file(filp);
3317out:
3318 kfree(vbuf);
3319 return err;
3320}
3321
439dfb10
CY		 3322static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
3323{
3324 struct inode *inode = file_inode(filp);
3325 __u64 blocks;
3326
3327 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3328 return -EOPNOTSUPP;
3329
3330 if (!f2fs_compressed_file(inode))
3331 return -EINVAL;
3332
c2759eba 3333 blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks);
439dfb10
CY		 3334 return put_user(blocks, (u64 __user *)arg);
3335}
3336
ef8d563f
CY		 3337static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3338{
3339 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3340 unsigned int released_blocks = 0;
3341 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3342 block_t blkaddr;
3343 int i;
3344
3345 for (i = 0; i < count; i++) {
3346 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3347 dn->ofs_in_node + i);
3348
3349 if (!__is_valid_data_blkaddr(blkaddr))
3350 continue;
3351 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3352 DATA_GENERIC_ENHANCE)))
3353 return -EFSCORRUPTED;
3354 }
3355
3356 while (count) {
3357 int compr_blocks = 0;
3358
3359 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3360 blkaddr = f2fs_data_blkaddr(dn);
3361
3362 if (i == 0) {
3363 if (blkaddr == COMPRESS_ADDR)
3364 continue;
3365 dn->ofs_in_node += cluster_size;
3366 goto next;
3367 }
3368
3369 if (__is_valid_data_blkaddr(blkaddr))
3370 compr_blocks++;
3371
3372 if (blkaddr != NEW_ADDR)
3373 continue;
3374
3375 dn->data_blkaddr = NULL_ADDR;
3376 f2fs_set_data_blkaddr(dn);
3377 }
3378
3379 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
3380 dec_valid_block_count(sbi, dn->inode,
3381 cluster_size - compr_blocks);
3382
3383 released_blocks += cluster_size - compr_blocks;
3384next:
3385 count -= cluster_size;
3386 }
3387
3388 return released_blocks;
3389}
3390
3391static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
3392{
3393 struct inode *inode = file_inode(filp);
3394 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3395 pgoff_t page_idx = 0, last_idx;
3396 unsigned int released_blocks = 0;
3397 int ret;
3398 int writecount;
3399
3400 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3401 return -EOPNOTSUPP;
3402
3403 if (!f2fs_compressed_file(inode))
3404 return -EINVAL;
3405
3406 if (f2fs_readonly(sbi->sb))
3407 return -EROFS;
3408
3409 ret = mnt_want_write_file(filp);
3410 if (ret)
3411 return ret;
3412
3413 f2fs_balance_fs(F2FS_I_SB(inode), true);
3414
3415 inode_lock(inode);
3416
3417 writecount = atomic_read(&inode->i_writecount);
8c8cf26a
DJ		 3418 if ((filp->f_mode & FMODE_WRITE && writecount != 1) ||
3419 (!(filp->f_mode & FMODE_WRITE) && writecount)) {
ef8d563f
CY		 3420 ret = -EBUSY;
3421 goto out;
3422 }
3423
c6140415 3424 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
ef8d563f
CY		 3425 ret = -EINVAL;
3426 goto out;
3427 }
3428
3429 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
3430 if (ret)
3431 goto out;
3432
c6140415 3433 set_inode_flag(inode, FI_COMPRESS_RELEASED);
ef8d563f
CY		 3434 inode->i_ctime = current_time(inode);
3435 f2fs_mark_inode_dirty_sync(inode, true);
3436
c2759eba 3437 if (!atomic_read(&F2FS_I(inode)->i_compr_blocks))
567c4bf5
DJ		 3438 goto out;
3439
ef8d563f 3440 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 3441 filemap_invalidate_lock(inode->i_mapping);
ef8d563f
CY		 3442
3443 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3444
3445 while (page_idx < last_idx) {
3446 struct dnode_of_data dn;
3447 pgoff_t end_offset, count;
3448
3449 set_new_dnode(&dn, inode, NULL, NULL, 0);
3450 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3451 if (ret) {
3452 if (ret == -ENOENT) {
3453 page_idx = f2fs_get_next_page_offset(&dn,
3454 page_idx);
3455 ret = 0;
3456 continue;
3457 }
3458 break;
3459 }
3460
3461 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3462 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3463 count = round_up(count, F2FS_I(inode)->i_cluster_size);
ef8d563f
CY		 3464
3465 ret = release_compress_blocks(&dn, count);
3466
3467 f2fs_put_dnode(&dn);
3468
3469 if (ret < 0)
3470 break;
3471
3472 page_idx += count;
3473 released_blocks += ret;
3474 }
3475
3476 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 3477 filemap_invalidate_unlock(inode->i_mapping);
ef8d563f
CY		 3478out:
3479 inode_unlock(inode);
3480
3481 mnt_drop_write_file(filp);
3482
3483 if (ret >= 0) {
3484 ret = put_user(released_blocks, (u64 __user *)arg);
c2759eba
DJ		 3485 } else if (released_blocks &&
3486 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
ef8d563f
CY		 3487 set_sbi_flag(sbi, SBI_NEED_FSCK);
3488 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
c2759eba 3489 "iblocks=%llu, released=%u, compr_blocks=%u, "
ef8d563f
CY		 3490 "run fsck to fix.",
3491 __func__, inode->i_ino, inode->i_blocks,
3492 released_blocks,
c2759eba 3493 atomic_read(&F2FS_I(inode)->i_compr_blocks));
ef8d563f
CY		 3494 }
3495
3496 return ret;
3497}
3498
c75488fb
CY		 3499static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3500{
3501 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3502 unsigned int reserved_blocks = 0;
3503 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3504 block_t blkaddr;
3505 int i;
3506
3507 for (i = 0; i < count; i++) {
3508 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3509 dn->ofs_in_node + i);
3510
3511 if (!__is_valid_data_blkaddr(blkaddr))
3512 continue;
3513 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3514 DATA_GENERIC_ENHANCE)))
3515 return -EFSCORRUPTED;
3516 }
3517
3518 while (count) {
3519 int compr_blocks = 0;
3520 blkcnt_t reserved;
3521 int ret;
3522
3523 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3524 blkaddr = f2fs_data_blkaddr(dn);
3525
3526 if (i == 0) {
3527 if (blkaddr == COMPRESS_ADDR)
3528 continue;
3529 dn->ofs_in_node += cluster_size;
3530 goto next;
3531 }
3532
3533 if (__is_valid_data_blkaddr(blkaddr)) {
3534 compr_blocks++;
3535 continue;
3536 }
3537
3538 dn->data_blkaddr = NEW_ADDR;
3539 f2fs_set_data_blkaddr(dn);
3540 }
3541
3542 reserved = cluster_size - compr_blocks;
3543 ret = inc_valid_block_count(sbi, dn->inode, &reserved);
3544 if (ret)
3545 return ret;
3546
3547 if (reserved != cluster_size - compr_blocks)
3548 return -ENOSPC;
3549
3550 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
3551
3552 reserved_blocks += reserved;
3553next:
3554 count -= cluster_size;
3555 }
3556
3557 return reserved_blocks;
3558}
3559
3560static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
3561{
3562 struct inode *inode = file_inode(filp);
3563 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3564 pgoff_t page_idx = 0, last_idx;
3565 unsigned int reserved_blocks = 0;
3566 int ret;
3567
3568 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3569 return -EOPNOTSUPP;
3570
3571 if (!f2fs_compressed_file(inode))
3572 return -EINVAL;
3573
3574 if (f2fs_readonly(sbi->sb))
3575 return -EROFS;
3576
3577 ret = mnt_want_write_file(filp);
3578 if (ret)
3579 return ret;
3580
c2759eba 3581 if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
c75488fb
CY		 3582 goto out;
3583
3584 f2fs_balance_fs(F2FS_I_SB(inode), true);
3585
3586 inode_lock(inode);
3587
c6140415 3588 if (!is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
c75488fb
CY		 3589 ret = -EINVAL;
3590 goto unlock_inode;
3591 }
3592
3593 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 3594 filemap_invalidate_lock(inode->i_mapping);
c75488fb
CY		 3595
3596 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3597
3598 while (page_idx < last_idx) {
3599 struct dnode_of_data dn;
3600 pgoff_t end_offset, count;
3601
3602 set_new_dnode(&dn, inode, NULL, NULL, 0);
3603 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3604 if (ret) {
3605 if (ret == -ENOENT) {
3606 page_idx = f2fs_get_next_page_offset(&dn,
3607 page_idx);
3608 ret = 0;
3609 continue;
3610 }
3611 break;
3612 }
3613
3614 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3615 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3616 count = round_up(count, F2FS_I(inode)->i_cluster_size);
c75488fb
CY		 3617
3618 ret = reserve_compress_blocks(&dn, count);
3619
3620 f2fs_put_dnode(&dn);
3621
3622 if (ret < 0)
3623 break;
3624
3625 page_idx += count;
3626 reserved_blocks += ret;
3627 }
3628
3629 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 3630 filemap_invalidate_unlock(inode->i_mapping);
c75488fb
CY		 3631
3632 if (ret >= 0) {
c6140415 3633 clear_inode_flag(inode, FI_COMPRESS_RELEASED);
c75488fb
CY		 3634 inode->i_ctime = current_time(inode);
3635 f2fs_mark_inode_dirty_sync(inode, true);
3636 }
3637unlock_inode:
3638 inode_unlock(inode);
3639out:
3640 mnt_drop_write_file(filp);
3641
3642 if (ret >= 0) {
3643 ret = put_user(reserved_blocks, (u64 __user *)arg);
c2759eba
DJ		 3644 } else if (reserved_blocks &&
3645 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
c75488fb
CY		 3646 set_sbi_flag(sbi, SBI_NEED_FSCK);
3647 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
c2759eba 3648 "iblocks=%llu, reserved=%u, compr_blocks=%u, "
c75488fb
CY		 3649 "run fsck to fix.",
3650 __func__, inode->i_ino, inode->i_blocks,
3651 reserved_blocks,
c2759eba 3652 atomic_read(&F2FS_I(inode)->i_compr_blocks));
c75488fb
CY		 3653 }
3654
3655 return ret;
3656}
3657
9af84648
DJ		 3658static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
3659 pgoff_t off, block_t block, block_t len, u32 flags)
3660{
3661 struct request_queue *q = bdev_get_queue(bdev);
3662 sector_t sector = SECTOR_FROM_BLOCK(block);
3663 sector_t nr_sects = SECTOR_FROM_BLOCK(len);
3664 int ret = 0;
3665
3666 if (!q)
3667 return -ENXIO;
3668
3669 if (flags & F2FS_TRIM_FILE_DISCARD)
3670 ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
3671 blk_queue_secure_erase(q) ?
3672 BLKDEV_DISCARD_SECURE : 0);
3673
3674 if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
3675 if (IS_ENCRYPTED(inode))
3676 ret = fscrypt_zeroout_range(inode, off, block, len);
3677 else
3678 ret = blkdev_issue_zeroout(bdev, sector, nr_sects,
3679 GFP_NOFS, 0);
3680 }
3681
3682 return ret;
3683}
3684
3685static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
3686{
3687 struct inode *inode = file_inode(filp);
3688 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3689 struct address_space *mapping = inode->i_mapping;
3690 struct block_device *prev_bdev = NULL;
3691 struct f2fs_sectrim_range range;
3692 pgoff_t index, pg_end, prev_index = 0;
3693 block_t prev_block = 0, len = 0;
3694 loff_t end_addr;
3695 bool to_end = false;
3696 int ret = 0;
3697
3698 if (!(filp->f_mode & FMODE_WRITE))
3699 return -EBADF;
3700
3701 if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
3702 sizeof(range)))
3703 return -EFAULT;
3704
3705 if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
3706 !S_ISREG(inode->i_mode))
3707 return -EINVAL;
3708
3709 if (((range.flags & F2FS_TRIM_FILE_DISCARD) &&
3710 !f2fs_hw_support_discard(sbi)) ||
3711 ((range.flags & F2FS_TRIM_FILE_ZEROOUT) &&
3712 IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi)))
3713 return -EOPNOTSUPP;
3714
3715 file_start_write(filp);
3716 inode_lock(inode);
3717
3718 if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
3719 range.start >= inode->i_size) {
3720 ret = -EINVAL;
3721 goto err;
3722 }
3723
3724 if (range.len == 0)
3725 goto err;
3726
3727 if (inode->i_size - range.start > range.len) {
3728 end_addr = range.start + range.len;
3729 } else {
3730 end_addr = range.len == (u64)-1 ?
3731 sbi->sb->s_maxbytes : inode->i_size;
3732 to_end = true;
3733 }
3734
3735 if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
3736 (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
3737 ret = -EINVAL;
3738 goto err;
3739 }
3740
3741 index = F2FS_BYTES_TO_BLK(range.start);
3742 pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
3743
3744 ret = f2fs_convert_inline_inode(inode);
3745 if (ret)
3746 goto err;
3747
3748 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 3749 filemap_invalidate_lock(mapping);
9af84648
DJ		 3750
3751 ret = filemap_write_and_wait_range(mapping, range.start,
3752 to_end ? LLONG_MAX : end_addr - 1);
3753 if (ret)
3754 goto out;
3755
3756 truncate_inode_pages_range(mapping, range.start,
3757 to_end ? -1 : end_addr - 1);
3758
3759 while (index < pg_end) {
3760 struct dnode_of_data dn;
3761 pgoff_t end_offset, count;
3762 int i;
3763
3764 set_new_dnode(&dn, inode, NULL, NULL, 0);
3765 ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
3766 if (ret) {
3767 if (ret == -ENOENT) {
3768 index = f2fs_get_next_page_offset(&dn, index);
3769 continue;
3770 }
3771 goto out;
3772 }
3773
3774 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3775 count = min(end_offset - dn.ofs_in_node, pg_end - index);
3776 for (i = 0; i < count; i++, index++, dn.ofs_in_node++) {
3777 struct block_device *cur_bdev;
3778 block_t blkaddr = f2fs_data_blkaddr(&dn);
3779
3780 if (!__is_valid_data_blkaddr(blkaddr))
3781 continue;
3782
3783 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
3784 DATA_GENERIC_ENHANCE)) {
3785 ret = -EFSCORRUPTED;
3786 f2fs_put_dnode(&dn);
3787 goto out;
3788 }
3789
3790 cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
3791 if (f2fs_is_multi_device(sbi)) {
3792 int di = f2fs_target_device_index(sbi, blkaddr);
3793
3794 blkaddr -= FDEV(di).start_blk;
3795 }
3796
3797 if (len) {
3798 if (prev_bdev == cur_bdev &&
3799 index == prev_index + len &&
3800 blkaddr == prev_block + len) {
3801 len++;
3802 } else {
3803 ret = f2fs_secure_erase(prev_bdev,
3804 inode, prev_index, prev_block,
3805 len, range.flags);
3806 if (ret) {
3807 f2fs_put_dnode(&dn);
3808 goto out;
3809 }
3810
3811 len = 0;
3812 }
3813 }
3814
3815 if (!len) {
3816 prev_bdev = cur_bdev;
3817 prev_index = index;
3818 prev_block = blkaddr;
3819 len = 1;
3820 }
3821 }
3822
3823 f2fs_put_dnode(&dn);
3824
3825 if (fatal_signal_pending(current)) {
3826 ret = -EINTR;
3827 goto out;
3828 }
3829 cond_resched();
3830 }
3831
3832 if (len)
3833 ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
3834 prev_block, len, range.flags);
3835out:
edc6d01b 3836 filemap_invalidate_unlock(mapping);
9af84648
DJ		 3837 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3838err:
3839 inode_unlock(inode);
3840 file_end_write(filp);
3841
3842 return ret;
3843}
3844
9e2a5f8c 3845static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg)
52656e6c 3846{
9e2a5f8c
DJ		 3847 struct inode *inode = file_inode(filp);
3848 struct f2fs_comp_option option;
3849
3850 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3851 return -EOPNOTSUPP;
3852
3853 inode_lock_shared(inode);
3854
3855 if (!f2fs_compressed_file(inode)) {
3856 inode_unlock_shared(inode);
3857 return -ENODATA;
3858 }
3859
3860 option.algorithm = F2FS_I(inode)->i_compress_algorithm;
3861 option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
3862
3863 inode_unlock_shared(inode);
3864
3865 if (copy_to_user((struct f2fs_comp_option __user *)arg, &option,
3866 sizeof(option)))
3867 return -EFAULT;
3868
3869 return 0;
3870}
3871
e1e8debe
DJ		 3872static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg)
3873{
3874 struct inode *inode = file_inode(filp);
3875 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3876 struct f2fs_comp_option option;
3877 int ret = 0;
1f227a3e 3878
e1e8debe
DJ		 3879 if (!f2fs_sb_has_compression(sbi))
3880 return -EOPNOTSUPP;
3881
3882 if (!(filp->f_mode & FMODE_WRITE))
3883 return -EBADF;
3884
3885 if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg,
3886 sizeof(option)))
3887 return -EFAULT;
3888
3889 if (!f2fs_compressed_file(inode) ||
3890 option.log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
3891 option.log_cluster_size > MAX_COMPRESS_LOG_SIZE ||
3892 option.algorithm >= COMPRESS_MAX)
3893 return -EINVAL;
3894
3895 file_start_write(filp);
3896 inode_lock(inode);
3897
3898 if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) {
3899 ret = -EBUSY;
3900 goto out;
3901 }
3902
3903 if (inode->i_size != 0) {
3904 ret = -EFBIG;
3905 goto out;
3906 }
3907
3908 F2FS_I(inode)->i_compress_algorithm = option.algorithm;
3909 F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size;
3910 F2FS_I(inode)->i_cluster_size = 1 << option.log_cluster_size;
3911 f2fs_mark_inode_dirty_sync(inode, true);
3912
3913 if (!f2fs_is_compress_backend_ready(inode))
3914 f2fs_warn(sbi, "compression algorithm is successfully set, "
3915 "but current kernel doesn't support this algorithm.");
3916out:
3917 inode_unlock(inode);
3918 file_end_write(filp);
3919
3920 return ret;
3921}
3922
5fdb322f
DJ		 3923static int redirty_blocks(struct inode *inode, pgoff_t page_idx, int len)
3924{
fcd9ae4f 3925 DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx);
5fdb322f
DJ		 3926 struct address_space *mapping = inode->i_mapping;
3927 struct page *page;
3928 pgoff_t redirty_idx = page_idx;
3929 int i, page_len = 0, ret = 0;
3930
3931 page_cache_ra_unbounded(&ractl, len, 0);
3932
3933 for (i = 0; i < len; i++, page_idx++) {
3934 page = read_cache_page(mapping, page_idx, NULL, NULL);
3935 if (IS_ERR(page)) {
3936 ret = PTR_ERR(page);
3937 break;
3938 }
3939 page_len++;
3940 }
3941
3942 for (i = 0; i < page_len; i++, redirty_idx++) {
3943 page = find_lock_page(mapping, redirty_idx);
df0736d7
DJ		 3944 if (!page) {
3945 ret = -ENOMEM;
3946 break;
3947 }
5fdb322f
DJ		 3948 set_page_dirty(page);
3949 f2fs_put_page(page, 1);
3950 f2fs_put_page(page, 0);
3951 }
3952
3953 return ret;
3954}
3955
3956static int f2fs_ioc_decompress_file(struct file *filp, unsigned long arg)
3957{
3958 struct inode *inode = file_inode(filp);
3959 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3960 struct f2fs_inode_info *fi = F2FS_I(inode);
3961 pgoff_t page_idx = 0, last_idx;
3962 unsigned int blk_per_seg = sbi->blocks_per_seg;
3963 int cluster_size = F2FS_I(inode)->i_cluster_size;
3964 int count, ret;
3965
3966 if (!f2fs_sb_has_compression(sbi) ||
3967 F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER)
3968 return -EOPNOTSUPP;
3969
3970 if (!(filp->f_mode & FMODE_WRITE))
3971 return -EBADF;
3972
3973 if (!f2fs_compressed_file(inode))
3974 return -EINVAL;
3975
3976 f2fs_balance_fs(F2FS_I_SB(inode), true);
3977
3978 file_start_write(filp);
3979 inode_lock(inode);
3980
3981 if (!f2fs_is_compress_backend_ready(inode)) {
3982 ret = -EOPNOTSUPP;
3983 goto out;
3984 }
3985
3986 if (f2fs_is_mmap_file(inode)) {
3987 ret = -EBUSY;
3988 goto out;
3989 }
3990
3991 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
3992 if (ret)
3993 goto out;
3994
3995 if (!atomic_read(&fi->i_compr_blocks))
3996 goto out;
3997
3998 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3999
4000 count = last_idx - page_idx;
4001 while (count) {
4002 int len = min(cluster_size, count);
4003
4004 ret = redirty_blocks(inode, page_idx, len);
4005 if (ret < 0)
4006 break;
4007
4008 if (get_dirty_pages(inode) >= blk_per_seg)
4009 filemap_fdatawrite(inode->i_mapping);
4010
4011 count -= len;
4012 page_idx += len;
4013 }
4014
4015 if (!ret)
4016 ret = filemap_write_and_wait_range(inode->i_mapping, 0,
4017 LLONG_MAX);
4018
4019 if (ret)
833dcd35
JP		 4020 f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
4021 __func__, ret);
5fdb322f
DJ		 4022out:
4023 inode_unlock(inode);
4024 file_end_write(filp);
4025
4026 return ret;
4027}
4028
4029static int f2fs_ioc_compress_file(struct file *filp, unsigned long arg)
4030{
4031 struct inode *inode = file_inode(filp);
4032 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4033 pgoff_t page_idx = 0, last_idx;
4034 unsigned int blk_per_seg = sbi->blocks_per_seg;
4035 int cluster_size = F2FS_I(inode)->i_cluster_size;
4036 int count, ret;
4037
4038 if (!f2fs_sb_has_compression(sbi) ||
4039 F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER)
4040 return -EOPNOTSUPP;
4041
4042 if (!(filp->f_mode & FMODE_WRITE))
4043 return -EBADF;
4044
4045 if (!f2fs_compressed_file(inode))
4046 return -EINVAL;
4047
4048 f2fs_balance_fs(F2FS_I_SB(inode), true);
4049
4050 file_start_write(filp);
4051 inode_lock(inode);
4052
4053 if (!f2fs_is_compress_backend_ready(inode)) {
4054 ret = -EOPNOTSUPP;
4055 goto out;
4056 }
4057
4058 if (f2fs_is_mmap_file(inode)) {
4059 ret = -EBUSY;
4060 goto out;
4061 }
4062
4063 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
4064 if (ret)
4065 goto out;
4066
4067 set_inode_flag(inode, FI_ENABLE_COMPRESS);
4068
4069 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
4070
4071 count = last_idx - page_idx;
4072 while (count) {
4073 int len = min(cluster_size, count);
4074
4075 ret = redirty_blocks(inode, page_idx, len);
4076 if (ret < 0)
4077 break;
4078
4079 if (get_dirty_pages(inode) >= blk_per_seg)
4080 filemap_fdatawrite(inode->i_mapping);
4081
4082 count -= len;
4083 page_idx += len;
4084 }
4085
4086 if (!ret)
4087 ret = filemap_write_and_wait_range(inode->i_mapping, 0,
4088 LLONG_MAX);
4089
4090 clear_inode_flag(inode, FI_ENABLE_COMPRESS);
4091
4092 if (ret)
833dcd35
JP		 4093 f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
4094 __func__, ret);
5fdb322f
DJ		 4095out:
4096 inode_unlock(inode);
4097 file_end_write(filp);
4098
4099 return ret;
4100}
4101
34178b1b 4102static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
52656e6c
JK		 4103{
4104 switch (cmd) {
3357af8f 4105 case FS_IOC_GETVERSION:
d49f3e89 4106 return f2fs_ioc_getversion(filp, arg);
88b88a66
JK		 4107 case F2FS_IOC_START_ATOMIC_WRITE:
4108 return f2fs_ioc_start_atomic_write(filp);
4109 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4110 return f2fs_ioc_commit_atomic_write(filp);
02a1335f
JK		 4111 case F2FS_IOC_START_VOLATILE_WRITE:
4112 return f2fs_ioc_start_volatile_write(filp);
1e84371f
JK		 4113 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4114 return f2fs_ioc_release_volatile_write(filp);
4115 case F2FS_IOC_ABORT_VOLATILE_WRITE:
4116 return f2fs_ioc_abort_volatile_write(filp);
1abff93d
JK		 4117 case F2FS_IOC_SHUTDOWN:
4118 return f2fs_ioc_shutdown(filp, arg);
52656e6c
JK		 4119 case FITRIM:
4120 return f2fs_ioc_fitrim(filp, arg);
3357af8f 4121 case FS_IOC_SET_ENCRYPTION_POLICY:
f424f664 4122 return f2fs_ioc_set_encryption_policy(filp, arg);
3357af8f 4123 case FS_IOC_GET_ENCRYPTION_POLICY:
f424f664 4124 return f2fs_ioc_get_encryption_policy(filp, arg);
3357af8f 4125 case FS_IOC_GET_ENCRYPTION_PWSALT:
f424f664 4126 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
8ce589c7
EB		 4127 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4128 return f2fs_ioc_get_encryption_policy_ex(filp, arg);
4129 case FS_IOC_ADD_ENCRYPTION_KEY:
4130 return f2fs_ioc_add_encryption_key(filp, arg);
4131 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4132 return f2fs_ioc_remove_encryption_key(filp, arg);
4133 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4134 return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
4135 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
4136 return f2fs_ioc_get_encryption_key_status(filp, arg);
ee446e1a
EB		 4137 case FS_IOC_GET_ENCRYPTION_NONCE:
4138 return f2fs_ioc_get_encryption_nonce(filp, arg);
c1c1b583
CY		 4139 case F2FS_IOC_GARBAGE_COLLECT:
4140 return f2fs_ioc_gc(filp, arg);
34dc77ad
JK		 4141 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
4142 return f2fs_ioc_gc_range(filp, arg);
456b88e4 4143 case F2FS_IOC_WRITE_CHECKPOINT:
059c0648 4144 return f2fs_ioc_write_checkpoint(filp, arg);
d323d005
CY		 4145 case F2FS_IOC_DEFRAGMENT:
4146 return f2fs_ioc_defragment(filp, arg);
4dd6f977
JK		 4147 case F2FS_IOC_MOVE_RANGE:
4148 return f2fs_ioc_move_range(filp, arg);
e066b83c
JK		 4149 case F2FS_IOC_FLUSH_DEVICE:
4150 return f2fs_ioc_flush_device(filp, arg);
e65ef207
JK		 4151 case F2FS_IOC_GET_FEATURES:
4152 return f2fs_ioc_get_features(filp, arg);
1ad71a27
JK		 4153 case F2FS_IOC_GET_PIN_FILE:
4154 return f2fs_ioc_get_pin_file(filp, arg);
4155 case F2FS_IOC_SET_PIN_FILE:
4156 return f2fs_ioc_set_pin_file(filp, arg);
c4020b2d
CY		 4157 case F2FS_IOC_PRECACHE_EXTENTS:
4158 return f2fs_ioc_precache_extents(filp, arg);
04f0b2ea
QS		 4159 case F2FS_IOC_RESIZE_FS:
4160 return f2fs_ioc_resize_fs(filp, arg);
95ae251f
EB		 4161 case FS_IOC_ENABLE_VERITY:
4162 return f2fs_ioc_enable_verity(filp, arg);
4163 case FS_IOC_MEASURE_VERITY:
4164 return f2fs_ioc_measure_verity(filp, arg);
e17fe657
EB		 4165 case FS_IOC_READ_VERITY_METADATA:
4166 return f2fs_ioc_read_verity_metadata(filp, arg);
3357af8f
EB		 4167 case FS_IOC_GETFSLABEL:
4168 return f2fs_ioc_getfslabel(filp, arg);
4169 case FS_IOC_SETFSLABEL:
4170 return f2fs_ioc_setfslabel(filp, arg);
439dfb10
CY		 4171 case F2FS_IOC_GET_COMPRESS_BLOCKS:
4172 return f2fs_get_compress_blocks(filp, arg);
ef8d563f
CY		 4173 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
4174 return f2fs_release_compress_blocks(filp, arg);
c75488fb
CY		 4175 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
4176 return f2fs_reserve_compress_blocks(filp, arg);
9af84648
DJ		 4177 case F2FS_IOC_SEC_TRIM_FILE:
4178 return f2fs_sec_trim_file(filp, arg);
9e2a5f8c
DJ		 4179 case F2FS_IOC_GET_COMPRESS_OPTION:
4180 return f2fs_ioc_get_compress_option(filp, arg);
e1e8debe
DJ		 4181 case F2FS_IOC_SET_COMPRESS_OPTION:
4182 return f2fs_ioc_set_compress_option(filp, arg);
5fdb322f
DJ		 4183 case F2FS_IOC_DECOMPRESS_FILE:
4184 return f2fs_ioc_decompress_file(filp, arg);
4185 case F2FS_IOC_COMPRESS_FILE:
4186 return f2fs_ioc_compress_file(filp, arg);
fbfa2cc5
JK		 4187 default:
4188 return -ENOTTY;
4189 }
4190}
4191
34178b1b
CY		 4192long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
4193{
4194 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
4195 return -EIO;
4196 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
4197 return -ENOSPC;
4198
4199 return __f2fs_ioctl(filp, cmd, arg);
4200}
4201
4c8ff709
CY		 4202static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
4203{
4204 struct file *file = iocb->ki_filp;
4205 struct inode *inode = file_inode(file);
8b83ac81 4206 int ret;
4c8ff709
CY		 4207
4208 if (!f2fs_is_compress_backend_ready(inode))
4209 return -EOPNOTSUPP;
4210
8b83ac81
CY		 4211 ret = generic_file_read_iter(iocb, iter);
4212
4213 if (ret > 0)
4214 f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret);
4215
4216 return ret;
4c8ff709
CY		 4217}
4218
fcc85a4d
JK		 4219static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
4220{
b439b103
JK		 4221 struct file *file = iocb->ki_filp;
4222 struct inode *inode = file_inode(file);
4223 ssize_t ret;
fcc85a4d 4224
126ce721
CY		 4225 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
4226 ret = -EIO;
4227 goto out;
4228 }
1f227a3e 4229
7bd29358
CY		 4230 if (!f2fs_is_compress_backend_ready(inode)) {
4231 ret = -EOPNOTSUPP;
4232 goto out;
4233 }
4c8ff709 4234
cb8434f1
GR		 4235 if (iocb->ki_flags & IOCB_NOWAIT) {
4236 if (!inode_trylock(inode)) {
126ce721
CY		 4237 ret = -EAGAIN;
4238 goto out;
4239 }
cb8434f1 4240 } else {
b91050a8
HL		 4241 inode_lock(inode);
4242 }
4243
e0fcd015
CY		 4244 if (unlikely(IS_IMMUTABLE(inode))) {
4245 ret = -EPERM;
4246 goto unlock;
4247 }
4248
c6140415
JK		 4249 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
4250 ret = -EPERM;
4251 goto unlock;
4252 }
4253
b439b103
JK		 4254 ret = generic_write_checks(iocb, from);
4255 if (ret > 0) {
dc7a10dd
JK		 4256 bool preallocated = false;
4257 size_t target_size = 0;
dc91de78 4258 int err;
a7de6086 4259
dc91de78
JK		 4260 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
4261 set_inode_flag(inode, FI_NO_PREALLOC);
a7de6086 4262
d5d5f0c0
CX		 4263 if ((iocb->ki_flags & IOCB_NOWAIT)) {
4264 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
b91050a8 4265 iov_iter_count(from)) ||
d5d5f0c0
CX		 4266 f2fs_has_inline_data(inode) ||
4267 f2fs_force_buffered_io(inode, iocb, from)) {
4268 clear_inode_flag(inode, FI_NO_PREALLOC);
4269 inode_unlock(inode);
4270 ret = -EAGAIN;
4271 goto out;
4272 }
47501f87
JK		 4273 goto write;
4274 }
dc7a10dd 4275
47501f87
JK		 4276 if (is_inode_flag_set(inode, FI_NO_PREALLOC))
4277 goto write;
4278
4279 if (iocb->ki_flags & IOCB_DIRECT) {
4280 /*
4281 * Convert inline data for Direct I/O before entering
4282 * f2fs_direct_IO().
4283 */
4284 err = f2fs_convert_inline_inode(inode);
4285 if (err)
4286 goto out_err;
4287 /*
4288 * If force_buffere_io() is true, we have to allocate
4289 * blocks all the time, since f2fs_direct_IO will fall
4290 * back to buffered IO.
4291 */
4292 if (!f2fs_force_buffered_io(inode, iocb, from) &&
4293 allow_outplace_dio(inode, iocb, from))
4294 goto write;
4295 }
4296 preallocated = true;
4297 target_size = iocb->ki_pos + iov_iter_count(from);
4298
4299 err = f2fs_preallocate_blocks(iocb, from);
4300 if (err) {
4301out_err:
4302 clear_inode_flag(inode, FI_NO_PREALLOC);
4303 inode_unlock(inode);
4304 ret = err;
4305 goto out;
9dfa1baf 4306 }
47501f87 4307write:
a7de6086 4308 ret = __generic_file_write_iter(iocb, from);
dc91de78 4309 clear_inode_flag(inode, FI_NO_PREALLOC);
b0af6d49 4310
dc7a10dd 4311 /* if we couldn't write data, we should deallocate blocks. */
a303b0ac
CY		 4312 if (preallocated && i_size_read(inode) < target_size) {
4313 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
edc6d01b 4314 filemap_invalidate_lock(inode->i_mapping);
dc7a10dd 4315 f2fs_truncate(inode);
edc6d01b 4316 filemap_invalidate_unlock(inode->i_mapping);
a303b0ac
CY		 4317 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
4318 }
dc7a10dd 4319
b0af6d49
CY		 4320 if (ret > 0)
4321 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
b439b103 4322 }
e0fcd015 4323unlock:
b439b103 4324 inode_unlock(inode);
126ce721
CY		 4325out:
4326 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
4327 iov_iter_count(from), ret);
e2592217
CH		 4328 if (ret > 0)
4329 ret = generic_write_sync(iocb, ret);
b439b103 4330 return ret;
fcc85a4d
JK		 4331}
4332
e9750824 4333#ifdef CONFIG_COMPAT
34178b1b
CY		 4334struct compat_f2fs_gc_range {
4335 u32 sync;
4336 compat_u64 start;
4337 compat_u64 len;
4338};
4339#define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\
4340 struct compat_f2fs_gc_range)
4341
4342static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg)
4343{
4344 struct compat_f2fs_gc_range __user *urange;
4345 struct f2fs_gc_range range;
4346 int err;
4347
4348 urange = compat_ptr(arg);
4349 err = get_user(range.sync, &urange->sync);
4350 err |= get_user(range.start, &urange->start);
4351 err |= get_user(range.len, &urange->len);
4352 if (err)
4353 return -EFAULT;
4354
4355 return __f2fs_ioc_gc_range(file, &range);
4356}
4357
4358struct compat_f2fs_move_range {
4359 u32 dst_fd;
4360 compat_u64 pos_in;
4361 compat_u64 pos_out;
4362 compat_u64 len;
4363};
4364#define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
4365 struct compat_f2fs_move_range)
4366
4367static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg)
4368{
4369 struct compat_f2fs_move_range __user *urange;
4370 struct f2fs_move_range range;
4371 int err;
4372
4373 urange = compat_ptr(arg);
4374 err = get_user(range.dst_fd, &urange->dst_fd);
4375 err |= get_user(range.pos_in, &urange->pos_in);
4376 err |= get_user(range.pos_out, &urange->pos_out);
4377 err |= get_user(range.len, &urange->len);
4378 if (err)
4379 return -EFAULT;
4380
4381 return __f2fs_ioc_move_range(file, &range);
4382}
4383
e9750824
NJ		 4384long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
4385{
34178b1b
CY		 4386 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
4387 return -EIO;
4388 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file))))
4389 return -ENOSPC;
4390
e9750824 4391 switch (cmd) {
3357af8f
EB		 4392 case FS_IOC32_GETVERSION:
4393 cmd = FS_IOC_GETVERSION;
04ef4b62 4394 break;
34178b1b
CY		 4395 case F2FS_IOC32_GARBAGE_COLLECT_RANGE:
4396 return f2fs_compat_ioc_gc_range(file, arg);
4397 case F2FS_IOC32_MOVE_RANGE:
4398 return f2fs_compat_ioc_move_range(file, arg);
04ef4b62
CY		 4399 case F2FS_IOC_START_ATOMIC_WRITE:
4400 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4401 case F2FS_IOC_START_VOLATILE_WRITE:
4402 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4403 case F2FS_IOC_ABORT_VOLATILE_WRITE:
4404 case F2FS_IOC_SHUTDOWN:
314999dc 4405 case FITRIM:
3357af8f
EB		 4406 case FS_IOC_SET_ENCRYPTION_POLICY:
4407 case FS_IOC_GET_ENCRYPTION_PWSALT:
4408 case FS_IOC_GET_ENCRYPTION_POLICY:
8ce589c7
EB		 4409 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4410 case FS_IOC_ADD_ENCRYPTION_KEY:
4411 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4412 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4413 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
ee446e1a 4414 case FS_IOC_GET_ENCRYPTION_NONCE:
04ef4b62
CY		 4415 case F2FS_IOC_GARBAGE_COLLECT:
4416 case F2FS_IOC_WRITE_CHECKPOINT:
4417 case F2FS_IOC_DEFRAGMENT:
e066b83c 4418 case F2FS_IOC_FLUSH_DEVICE:
e65ef207 4419 case F2FS_IOC_GET_FEATURES:
1ad71a27
JK		 4420 case F2FS_IOC_GET_PIN_FILE:
4421 case F2FS_IOC_SET_PIN_FILE:
c4020b2d 4422 case F2FS_IOC_PRECACHE_EXTENTS:
04f0b2ea 4423 case F2FS_IOC_RESIZE_FS:
95ae251f
EB		 4424 case FS_IOC_ENABLE_VERITY:
4425 case FS_IOC_MEASURE_VERITY:
e17fe657 4426 case FS_IOC_READ_VERITY_METADATA:
3357af8f
EB		 4427 case FS_IOC_GETFSLABEL:
4428 case FS_IOC_SETFSLABEL:
439dfb10 4429 case F2FS_IOC_GET_COMPRESS_BLOCKS:
ef8d563f 4430 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
c75488fb 4431 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
9af84648 4432 case F2FS_IOC_SEC_TRIM_FILE:
9e2a5f8c 4433 case F2FS_IOC_GET_COMPRESS_OPTION:
e1e8debe 4434 case F2FS_IOC_SET_COMPRESS_OPTION:
5fdb322f
DJ		 4435 case F2FS_IOC_DECOMPRESS_FILE:
4436 case F2FS_IOC_COMPRESS_FILE:
4dd6f977 4437 break;
e9750824
NJ		 4438 default:
4439 return -ENOIOCTLCMD;
4440 }
34178b1b 4441 return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
e9750824
NJ		 4442}
4443#endif
4444
fbfa2cc5 4445const struct file_operations f2fs_file_operations = {
267378d4 4446 .llseek = f2fs_llseek,
4c8ff709 4447 .read_iter = f2fs_file_read_iter,
fcc85a4d
JK		 4448 .write_iter = f2fs_file_write_iter,
4449 .open = f2fs_file_open,
12662234 4450 .release = f2fs_release_file,
fbfa2cc5 4451 .mmap = f2fs_file_mmap,
7a10f017 4452 .flush = f2fs_file_flush,
fbfa2cc5
JK		 4453 .fsync = f2fs_sync_file,
4454 .fallocate = f2fs_fallocate,
4455 .unlocked_ioctl = f2fs_ioctl,
e9750824
NJ		 4456#ifdef CONFIG_COMPAT
4457 .compat_ioctl = f2fs_compat_ioctl,
4458#endif
fbfa2cc5 4459 .splice_read = generic_file_splice_read,
8d020765 4460 .splice_write = iter_file_splice_write,
fbfa2cc5 4461};
Linux 6.x block layer and io_uring tree(s)