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f2fs: add compress_mode mount option
[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>
fbfa2cc5
JK		 25
26#include "f2fs.h"
27#include "node.h"
28#include "segment.h"
29#include "xattr.h"
30#include "acl.h"
c1c1b583 31#include "gc.h"
db9f7c1a 32#include "trace.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
QS		 40
41 down_read(&F2FS_I(inode)->i_mmap_sem);
ea4d479b 42 ret = filemap_fault(vmf);
5a3a2d83
QS		 43 up_read(&F2FS_I(inode)->i_mmap_sem);
44
8b83ac81
CY		 45 if (!ret)
46 f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
47 F2FS_BLKSIZE);
48
d7648343
CY		 49 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
50
ea4d479b 51 return ret;
5a3a2d83
QS		 52}
53
ea4d479b 54static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
fbfa2cc5
JK		 55{
56 struct page *page = vmf->page;
11bac800 57 struct inode *inode = file_inode(vmf->vma->vm_file);
4081363f 58 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bdf03299 59 struct dnode_of_data dn;
4c8ff709
CY		 60 bool need_alloc = true;
61 int err = 0;
fbfa2cc5 62
1f227a3e
JK		 63 if (unlikely(f2fs_cp_error(sbi))) {
64 err = -EIO;
65 goto err;
66 }
67
00e09c0b
CY		 68 if (!f2fs_is_checkpoint_ready(sbi)) {
69 err = -ENOSPC;
955ebcd3 70 goto err;
00e09c0b 71 }
1f227a3e 72
4c8ff709
CY		 73#ifdef CONFIG_F2FS_FS_COMPRESSION
74 if (f2fs_compressed_file(inode)) {
75 int ret = f2fs_is_compressed_cluster(inode, page->index);
76
77 if (ret < 0) {
78 err = ret;
79 goto err;
80 } else if (ret) {
81 if (ret < F2FS_I(inode)->i_cluster_size) {
82 err = -EAGAIN;
83 goto err;
84 }
85 need_alloc = false;
86 }
87 }
88#endif
bdf03299 89 /* should do out of any locked page */
4c8ff709
CY		 90 if (need_alloc)
91 f2fs_balance_fs(sbi, true);
bdf03299 92
fbfa2cc5 93 sb_start_pagefault(inode->i_sb);
b3d208f9
JK		 94
95 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
b067ba1f 96
11bac800 97 file_update_time(vmf->vma->vm_file);
5a3a2d83 98 down_read(&F2FS_I(inode)->i_mmap_sem);
fbfa2cc5 99 lock_page(page);
6bacf52f 100 if (unlikely(page->mapping != inode->i_mapping ||
9851e6e1 101 page_offset(page) > i_size_read(inode) ||
6bacf52f 102 !PageUptodate(page))) {
fbfa2cc5
JK		 103 unlock_page(page);
104 err = -EFAULT;
5a3a2d83 105 goto out_sem;
fbfa2cc5
JK		 106 }
107
4c8ff709
CY		 108 if (need_alloc) {
109 /* block allocation */
0ef81833 110 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
4c8ff709
CY		 111 set_new_dnode(&dn, inode, NULL, NULL, 0);
112 err = f2fs_get_block(&dn, page->index);
113 f2fs_put_dnode(&dn);
0ef81833 114 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
39a86958
CY		 115 }
116
06c7540f
CY		 117#ifdef CONFIG_F2FS_FS_COMPRESSION
118 if (!need_alloc) {
119 set_new_dnode(&dn, inode, NULL, NULL, 0);
120 err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
121 f2fs_put_dnode(&dn);
122 }
123#endif
124 if (err) {
125 unlock_page(page);
126 goto out_sem;
39a86958
CY		 127 }
128
bae0ee7a 129 f2fs_wait_on_page_writeback(page, DATA, false, true);
39a86958
CY		 130
131 /* wait for GCed page writeback via META_MAPPING */
132 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
133
fbfa2cc5
JK		 134 /*
135 * check to see if the page is mapped already (no holes)
136 */
137 if (PageMappedToDisk(page))
39a86958 138 goto out_sem;
fbfa2cc5
JK		 139
140 /* page is wholly or partially inside EOF */
09cbfeaf 141 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
9edcdabf 142 i_size_read(inode)) {
193bea1d 143 loff_t offset;
f11e98bd 144
09cbfeaf
KS		 145 offset = i_size_read(inode) & ~PAGE_MASK;
146 zero_user_segment(page, offset, PAGE_SIZE);
fbfa2cc5
JK		 147 }
148 set_page_dirty(page);
237c0790
JK		 149 if (!PageUptodate(page))
150 SetPageUptodate(page);
fbfa2cc5 151
b0af6d49 152 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
c75f2feb 153 f2fs_update_time(sbi, REQ_TIME);
b0af6d49 154
e943a10d 155 trace_f2fs_vm_page_mkwrite(page, DATA);
5a3a2d83
QS		 156out_sem:
157 up_read(&F2FS_I(inode)->i_mmap_sem);
39a86958 158
fbfa2cc5 159 sb_end_pagefault(inode->i_sb);
1f227a3e 160err:
fbfa2cc5
JK		 161 return block_page_mkwrite_return(err);
162}
163
164static const struct vm_operations_struct f2fs_file_vm_ops = {
5a3a2d83 165 .fault = f2fs_filemap_fault,
f1820361 166 .map_pages = filemap_map_pages,
692bb55d 167 .page_mkwrite = f2fs_vm_page_mkwrite,
fbfa2cc5
JK		 168};
169
354a3399
JK		 170static int get_parent_ino(struct inode *inode, nid_t *pino)
171{
172 struct dentry *dentry;
173
84c9c2de
EB		 174 /*
175 * Make sure to get the non-deleted alias. The alias associated with
176 * the open file descriptor being fsync()'ed may be deleted already.
177 */
178 dentry = d_find_alias(inode);
354a3399
JK		 179 if (!dentry)
180 return 0;
181
f0947e5c
JK		 182 *pino = parent_ino(dentry);
183 dput(dentry);
354a3399
JK		 184 return 1;
185}
186
a5fd5050 187static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
9d1589ef 188{
4081363f 189 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
a5fd5050 190 enum cp_reason_type cp_reason = CP_NO_NEEDED;
9d1589ef 191
a5fd5050
CY		 192 if (!S_ISREG(inode->i_mode))
193 cp_reason = CP_NON_REGULAR;
4c8ff709
CY		 194 else if (f2fs_compressed_file(inode))
195 cp_reason = CP_COMPRESSED;
a5fd5050
CY		 196 else if (inode->i_nlink != 1)
197 cp_reason = CP_HARDLINK;
bbf156f7 198 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
a5fd5050 199 cp_reason = CP_SB_NEED_CP;
9d1589ef 200 else if (file_wrong_pino(inode))
a5fd5050 201 cp_reason = CP_WRONG_PINO;
4d57b86d 202 else if (!f2fs_space_for_roll_forward(sbi))
a5fd5050 203 cp_reason = CP_NO_SPC_ROLL;
4d57b86d 204 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
a5fd5050 205 cp_reason = CP_NODE_NEED_CP;
d5053a34 206 else if (test_opt(sbi, FASTBOOT))
a5fd5050 207 cp_reason = CP_FASTBOOT_MODE;
63189b78 208 else if (F2FS_OPTION(sbi).active_logs == 2)
a5fd5050 209 cp_reason = CP_SPEC_LOG_NUM;
63189b78 210 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
4d57b86d
CY		 211 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
212 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
213 TRANS_DIR_INO))
0a007b97 214 cp_reason = CP_RECOVER_DIR;
9d1589ef 215
a5fd5050 216 return cp_reason;
9d1589ef
CY		 217}
218
9c7bb702
CL		 219static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
220{
221 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
222 bool ret = false;
223 /* But we need to avoid that there are some inode updates */
4d57b86d 224 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
9c7bb702
CL		 225 ret = true;
226 f2fs_put_page(i, 0);
227 return ret;
228}
229
51455b19
CL		 230static void try_to_fix_pino(struct inode *inode)
231{
232 struct f2fs_inode_info *fi = F2FS_I(inode);
233 nid_t pino;
234
235 down_write(&fi->i_sem);
51455b19
CL		 236 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
237 get_parent_ino(inode, &pino)) {
205b9822 238 f2fs_i_pino_write(inode, pino);
51455b19 239 file_got_pino(inode);
51455b19 240 }
ee6d182f 241 up_write(&fi->i_sem);
51455b19
CL		 242}
243
608514de
JK		 244static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
245 int datasync, bool atomic)
fbfa2cc5
JK		 246{
247 struct inode *inode = file->f_mapping->host;
4081363f 248 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2403c155 249 nid_t ino = inode->i_ino;
fbfa2cc5 250 int ret = 0;
a5fd5050 251 enum cp_reason_type cp_reason = 0;
fbfa2cc5 252 struct writeback_control wbc = {
c81bf1c8 253 .sync_mode = WB_SYNC_ALL,
fbfa2cc5
JK		 254 .nr_to_write = LONG_MAX,
255 .for_reclaim = 0,
256 };
50fa53ec 257 unsigned int seq_id = 0;
fbfa2cc5 258
4354994f
DR		 259 if (unlikely(f2fs_readonly(inode->i_sb) ||
260 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1fa95b0b
NJ		 261 return 0;
262
a2a4a7e4 263 trace_f2fs_sync_file_enter(inode);
ea1aa12c 264
b61ac5b7
YH		 265 if (S_ISDIR(inode->i_mode))
266 goto go_write;
267
ea1aa12c 268 /* if fdatasync is triggered, let's do in-place-update */
c46a155b 269 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
91942321 270 set_inode_flag(inode, FI_NEED_IPU);
3b49c9a1 271 ret = file_write_and_wait_range(file, start, end);
91942321 272 clear_inode_flag(inode, FI_NEED_IPU);
c1ce1b02 273
a2a4a7e4 274 if (ret) {
a5fd5050 275 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
fbfa2cc5 276 return ret;
a2a4a7e4 277 }
fbfa2cc5 278
9c7bb702 279 /* if the inode is dirty, let's recover all the time */
281518c6 280 if (!f2fs_skip_inode_update(inode, datasync)) {
2286c020 281 f2fs_write_inode(inode, NULL);
9c7bb702
CL		 282 goto go_write;
283 }
284
6d99ba41
JK		 285 /*
286 * if there is no written data, don't waste time to write recovery info.
287 */
91942321 288 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
4d57b86d 289 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
19c9c466 290
9c7bb702
CL		 291 /* it may call write_inode just prior to fsync */
292 if (need_inode_page_update(sbi, ino))
19c9c466 293 goto go_write;
19c9c466 294
91942321 295 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
4d57b86d 296 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
6d99ba41
JK		 297 goto flush_out;
298 goto out;
299 }
19c9c466 300go_write:
e5d2385e
JK		 301 /*
302 * Both of fdatasync() and fsync() are able to be recovered from
303 * sudden-power-off.
304 */
91942321 305 down_read(&F2FS_I(inode)->i_sem);
a5fd5050 306 cp_reason = need_do_checkpoint(inode);
91942321 307 up_read(&F2FS_I(inode)->i_sem);
d928bfbf 308
a5fd5050 309 if (cp_reason) {
fbfa2cc5
JK		 310 /* all the dirty node pages should be flushed for POR */
311 ret = f2fs_sync_fs(inode->i_sb, 1);
d928bfbf 312
51455b19
CL		 313 /*
314 * We've secured consistency through sync_fs. Following pino
315 * will be used only for fsynced inodes after checkpoint.
316 */
317 try_to_fix_pino(inode);
91942321
JK		 318 clear_inode_flag(inode, FI_APPEND_WRITE);
319 clear_inode_flag(inode, FI_UPDATE_WRITE);
51455b19
CL		 320 goto out;
321 }
88bd02c9 322sync_nodes:
c29fd0c0 323 atomic_inc(&sbi->wb_sync_req[NODE]);
50fa53ec 324 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
c29fd0c0 325 atomic_dec(&sbi->wb_sync_req[NODE]);
c267ec15
JK		 326 if (ret)
327 goto out;
51455b19 328
871f599f 329 /* if cp_error was enabled, we should avoid infinite loop */
6d5a1495
CY		 330 if (unlikely(f2fs_cp_error(sbi))) {
331 ret = -EIO;
871f599f 332 goto out;
6d5a1495 333 }
871f599f 334
4d57b86d 335 if (f2fs_need_inode_block_update(sbi, ino)) {
7c45729a 336 f2fs_mark_inode_dirty_sync(inode, true);
51455b19
CL		 337 f2fs_write_inode(inode, NULL);
338 goto sync_nodes;
fbfa2cc5 339 }
51455b19 340
b6a245eb
JK		 341 /*
342 * If it's atomic_write, it's just fine to keep write ordering. So
343 * here we don't need to wait for node write completion, since we use
344 * node chain which serializes node blocks. If one of node writes are
345 * reordered, we can see simply broken chain, resulting in stopping
346 * roll-forward recovery. It means we'll recover all or none node blocks
347 * given fsync mark.
348 */
349 if (!atomic) {
50fa53ec 350 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
b6a245eb
JK		 351 if (ret)
352 goto out;
353 }
51455b19
CL		 354
355 /* once recovery info is written, don't need to tack this */
4d57b86d 356 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
91942321 357 clear_inode_flag(inode, FI_APPEND_WRITE);
51455b19 358flush_out:
d6290814 359 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
39d787be 360 ret = f2fs_issue_flush(sbi, inode->i_ino);
3f06252f 361 if (!ret) {
4d57b86d 362 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
3f06252f 363 clear_inode_flag(inode, FI_UPDATE_WRITE);
4d57b86d 364 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
3f06252f 365 }
d0239e1b 366 f2fs_update_time(sbi, REQ_TIME);
fbfa2cc5 367out:
a5fd5050 368 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
05ca3632 369 f2fs_trace_ios(NULL, 1);
fbfa2cc5
JK		 370 return ret;
371}
372
608514de
JK		 373int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
374{
1f227a3e
JK		 375 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
376 return -EIO;
608514de
JK		 377 return f2fs_do_sync_file(file, start, end, datasync, false);
378}
379
4cb03fec
MWO		 380static bool __found_offset(struct address_space *mapping, block_t blkaddr,
381 pgoff_t index, int whence)
7f7670fe
JK		 382{
383 switch (whence) {
384 case SEEK_DATA:
4cb03fec
MWO		 385 if (__is_valid_data_blkaddr(blkaddr))
386 return true;
387 if (blkaddr == NEW_ADDR &&
388 xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY))
7f7670fe
JK		 389 return true;
390 break;
391 case SEEK_HOLE:
392 if (blkaddr == NULL_ADDR)
393 return true;
394 break;
395 }
396 return false;
397}
398
267378d4
CY		 399static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
400{
401 struct inode *inode = file->f_mapping->host;
402 loff_t maxbytes = inode->i_sb->s_maxbytes;
403 struct dnode_of_data dn;
4cb03fec 404 pgoff_t pgofs, end_offset;
7f7670fe
JK		 405 loff_t data_ofs = offset;
406 loff_t isize;
267378d4
CY		 407 int err = 0;
408
5955102c 409 inode_lock(inode);
267378d4
CY		 410
411 isize = i_size_read(inode);
412 if (offset >= isize)
413 goto fail;
414
415 /* handle inline data case */
7a6e59d7
CY		 416 if (f2fs_has_inline_data(inode)) {
417 if (whence == SEEK_HOLE) {
418 data_ofs = isize;
419 goto found;
420 } else if (whence == SEEK_DATA) {
421 data_ofs = offset;
422 goto found;
423 }
267378d4
CY		 424 }
425
09cbfeaf 426 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
267378d4 427
09cbfeaf 428 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 429 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 430 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
267378d4
CY		 431 if (err && err != -ENOENT) {
432 goto fail;
433 } else if (err == -ENOENT) {
e1c42045 434 /* direct node does not exists */
267378d4 435 if (whence == SEEK_DATA) {
4d57b86d 436 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
267378d4
CY		 437 continue;
438 } else {
439 goto found;
440 }
441 }
442
81ca7350 443 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
267378d4
CY		 444
445 /* find data/hole in dnode block */
446 for (; dn.ofs_in_node < end_offset;
447 dn.ofs_in_node++, pgofs++,
09cbfeaf 448 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 449 block_t blkaddr;
f11e98bd 450
a2ced1ce 451 blkaddr = f2fs_data_blkaddr(&dn);
267378d4 452
c9b60788
CY		 453 if (__is_valid_data_blkaddr(blkaddr) &&
454 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
93770ab7 455 blkaddr, DATA_GENERIC_ENHANCE)) {
c9b60788
CY		 456 f2fs_put_dnode(&dn);
457 goto fail;
458 }
459
4cb03fec 460 if (__found_offset(file->f_mapping, blkaddr,
e1da7872 461 pgofs, whence)) {
267378d4
CY		 462 f2fs_put_dnode(&dn);
463 goto found;
464 }
465 }
466 f2fs_put_dnode(&dn);
467 }
468
469 if (whence == SEEK_DATA)
470 goto fail;
267378d4 471found:
fe369bc8
JK		 472 if (whence == SEEK_HOLE && data_ofs > isize)
473 data_ofs = isize;
5955102c 474 inode_unlock(inode);
267378d4
CY		 475 return vfs_setpos(file, data_ofs, maxbytes);
476fail:
5955102c 477 inode_unlock(inode);
267378d4
CY		 478 return -ENXIO;
479}
480
481static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
482{
483 struct inode *inode = file->f_mapping->host;
484 loff_t maxbytes = inode->i_sb->s_maxbytes;
485
486 switch (whence) {
487 case SEEK_SET:
488 case SEEK_CUR:
489 case SEEK_END:
490 return generic_file_llseek_size(file, offset, whence,
491 maxbytes, i_size_read(inode));
492 case SEEK_DATA:
493 case SEEK_HOLE:
0b4c5afd
JK		 494 if (offset < 0)
495 return -ENXIO;
267378d4
CY		 496 return f2fs_seek_block(file, offset, whence);
497 }
498
499 return -EINVAL;
500}
501
fbfa2cc5
JK		 502static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
503{
b3d208f9 504 struct inode *inode = file_inode(file);
b9d777b8 505 int err;
b3d208f9 506
1f227a3e
JK		 507 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
508 return -EIO;
509
4c8ff709
CY		 510 if (!f2fs_is_compress_backend_ready(inode))
511 return -EOPNOTSUPP;
512
b3d208f9 513 /* we don't need to use inline_data strictly */
b9d777b8
JK		 514 err = f2fs_convert_inline_inode(inode);
515 if (err)
516 return err;
b3d208f9 517
fbfa2cc5
JK		 518 file_accessed(file);
519 vma->vm_ops = &f2fs_file_vm_ops;
4c8ff709 520 set_inode_flag(inode, FI_MMAP_FILE);
fbfa2cc5
JK		 521 return 0;
522}
523
fcc85a4d
JK		 524static int f2fs_file_open(struct inode *inode, struct file *filp)
525{
2e168c82 526 int err = fscrypt_file_open(inode, filp);
fcc85a4d 527
95ae251f
EB		 528 if (err)
529 return err;
530
4c8ff709
CY		 531 if (!f2fs_is_compress_backend_ready(inode))
532 return -EOPNOTSUPP;
533
95ae251f 534 err = fsverity_file_open(inode, filp);
2e168c82
EB		 535 if (err)
536 return err;
b91050a8
HL		 537
538 filp->f_mode |= FMODE_NOWAIT;
539
0abd675e 540 return dquot_file_open(inode, filp);
fcc85a4d
JK		 541}
542
4d57b86d 543void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
fbfa2cc5 544{
4081363f 545 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
fbfa2cc5 546 struct f2fs_node *raw_node;
19b2c30d 547 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
fbfa2cc5 548 __le32 *addr;
7a2af766 549 int base = 0;
4c8ff709
CY		 550 bool compressed_cluster = false;
551 int cluster_index = 0, valid_blocks = 0;
552 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
c2759eba 553 bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
7a2af766
CY		 554
555 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
556 base = get_extra_isize(dn->inode);
fbfa2cc5 557
45590710 558 raw_node = F2FS_NODE(dn->node_page);
7a2af766 559 addr = blkaddr_in_node(raw_node) + base + ofs;
fbfa2cc5 560
4c8ff709
CY		 561 /* Assumption: truncateion starts with cluster */
562 for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
fbfa2cc5 563 block_t blkaddr = le32_to_cpu(*addr);
f11e98bd 564
4c8ff709
CY		 565 if (f2fs_compressed_file(dn->inode) &&
566 !(cluster_index & (cluster_size - 1))) {
567 if (compressed_cluster)
568 f2fs_i_compr_blocks_update(dn->inode,
569 valid_blocks, false);
570 compressed_cluster = (blkaddr == COMPRESS_ADDR);
571 valid_blocks = 0;
572 }
573
fbfa2cc5
JK		 574 if (blkaddr == NULL_ADDR)
575 continue;
576
e1509cf2 577 dn->data_blkaddr = NULL_ADDR;
4d57b86d 578 f2fs_set_data_blkaddr(dn);
c9b60788 579
4c8ff709
CY		 580 if (__is_valid_data_blkaddr(blkaddr)) {
581 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
93770ab7 582 DATA_GENERIC_ENHANCE))
4c8ff709
CY		 583 continue;
584 if (compressed_cluster)
585 valid_blocks++;
586 }
c9b60788 587
3c6c2beb 588 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
91942321 589 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
4c8ff709
CY		 590
591 f2fs_invalidate_blocks(sbi, blkaddr);
ef8d563f
CY		 592
593 if (!released || blkaddr != COMPRESS_ADDR)
594 nr_free++;
fbfa2cc5 595 }
19b2c30d 596
4c8ff709
CY		 597 if (compressed_cluster)
598 f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
599
fbfa2cc5 600 if (nr_free) {
19b2c30d
CY		 601 pgoff_t fofs;
602 /*
603 * once we invalidate valid blkaddr in range [ofs, ofs + count],
604 * we will invalidate all blkaddr in the whole range.
605 */
4d57b86d 606 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
81ca7350 607 dn->inode) + ofs;
19b2c30d 608 f2fs_update_extent_cache_range(dn, fofs, 0, len);
d7cc950b 609 dec_valid_block_count(sbi, dn->inode, nr_free);
fbfa2cc5
JK		 610 }
611 dn->ofs_in_node = ofs;
51dd6249 612
d0239e1b 613 f2fs_update_time(sbi, REQ_TIME);
51dd6249
NJ		 614 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
615 dn->ofs_in_node, nr_free);
fbfa2cc5
JK		 616}
617
4d57b86d 618void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
fbfa2cc5 619{
d02a6e61 620 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
fbfa2cc5
JK		 621}
622
0bfcfcca 623static int truncate_partial_data_page(struct inode *inode, u64 from,
43f3eae1 624 bool cache_only)
fbfa2cc5 625{
193bea1d 626 loff_t offset = from & (PAGE_SIZE - 1);
09cbfeaf 627 pgoff_t index = from >> PAGE_SHIFT;
43f3eae1 628 struct address_space *mapping = inode->i_mapping;
fbfa2cc5
JK		 629 struct page *page;
630
43f3eae1 631 if (!offset && !cache_only)
b3d208f9 632 return 0;
fbfa2cc5 633
43f3eae1 634 if (cache_only) {
34b5d5c2 635 page = find_lock_page(mapping, index);
43f3eae1
JK		 636 if (page && PageUptodate(page))
637 goto truncate_out;
638 f2fs_put_page(page, 1);
b3d208f9 639 return 0;
43f3eae1 640 }
fbfa2cc5 641
4d57b86d 642 page = f2fs_get_lock_data_page(inode, index, true);
43f3eae1 643 if (IS_ERR(page))
a78aaa2c 644 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
43f3eae1 645truncate_out:
bae0ee7a 646 f2fs_wait_on_page_writeback(page, DATA, true, true);
09cbfeaf 647 zero_user(page, offset, PAGE_SIZE - offset);
a9bcf9bc
JK		 648
649 /* An encrypted inode should have a key and truncate the last page. */
62230e0d 650 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
a9bcf9bc 651 if (!cache_only)
0bfcfcca 652 set_page_dirty(page);
fbfa2cc5 653 f2fs_put_page(page, 1);
b3d208f9 654 return 0;
fbfa2cc5
JK		 655}
656
3265d3db 657int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock)
fbfa2cc5 658{
4081363f 659 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 660 struct dnode_of_data dn;
661 pgoff_t free_from;
9ffe0fb5 662 int count = 0, err = 0;
b3d208f9 663 struct page *ipage;
0bfcfcca 664 bool truncate_page = false;
fbfa2cc5 665
51dd6249
NJ		 666 trace_f2fs_truncate_blocks_enter(inode, from);
667
df033caf 668 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
fbfa2cc5 669
09210c97
CY		 670 if (free_from >= sbi->max_file_blocks)
671 goto free_partial;
672
764aa3e9 673 if (lock)
c42d28ce 674 f2fs_lock_op(sbi);
9ffe0fb5 675
4d57b86d 676 ipage = f2fs_get_node_page(sbi, inode->i_ino);
b3d208f9
JK		 677 if (IS_ERR(ipage)) {
678 err = PTR_ERR(ipage);
679 goto out;
680 }
681
682 if (f2fs_has_inline_data(inode)) {
4d57b86d 683 f2fs_truncate_inline_inode(inode, ipage, from);
b3d208f9 684 f2fs_put_page(ipage, 1);
0bfcfcca 685 truncate_page = true;
b3d208f9
JK		 686 goto out;
687 }
688
689 set_new_dnode(&dn, inode, ipage, NULL, 0);
4d57b86d 690 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
fbfa2cc5
JK		 691 if (err) {
692 if (err == -ENOENT)
693 goto free_next;
b3d208f9 694 goto out;
1ce86bf6
JK		 695 }
696
81ca7350 697 count = ADDRS_PER_PAGE(dn.node_page, inode);
fbfa2cc5
JK		 698
699 count -= dn.ofs_in_node;
9850cf4a 700 f2fs_bug_on(sbi, count < 0);
39936837 701
fbfa2cc5 702 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
4d57b86d 703 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5
JK		 704 free_from += count;
705 }
706
707 f2fs_put_dnode(&dn);
708free_next:
4d57b86d 709 err = f2fs_truncate_inode_blocks(inode, free_from);
764d2c80
JK		 710out:
711 if (lock)
c42d28ce 712 f2fs_unlock_op(sbi);
09210c97 713free_partial:
b3d208f9
JK		 714 /* lastly zero out the first data page */
715 if (!err)
0bfcfcca 716 err = truncate_partial_data_page(inode, from, truncate_page);
fbfa2cc5 717
51dd6249 718 trace_f2fs_truncate_blocks_exit(inode, err);
fbfa2cc5
JK		 719 return err;
720}
721
4c8ff709
CY		 722int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
723{
724 u64 free_from = from;
3265d3db 725 int err;
4c8ff709 726
3265d3db 727#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 728 /*
729 * for compressed file, only support cluster size
730 * aligned truncation.
731 */
4fec3fc0
CY		 732 if (f2fs_compressed_file(inode))
733 free_from = round_up(from,
734 F2FS_I(inode)->i_cluster_size << PAGE_SHIFT);
3265d3db
CY		 735#endif
736
737 err = f2fs_do_truncate_blocks(inode, free_from, lock);
738 if (err)
739 return err;
740
741#ifdef CONFIG_F2FS_FS_COMPRESSION
17d7648d 742 if (from != free_from) {
3265d3db 743 err = f2fs_truncate_partial_cluster(inode, from, lock);
17d7648d
CY		 744 if (err)
745 return err;
746 }
3265d3db 747#endif
4c8ff709 748
17d7648d 749 return 0;
4c8ff709
CY		 750}
751
9a449e9c 752int f2fs_truncate(struct inode *inode)
fbfa2cc5 753{
b0154891
CY		 754 int err;
755
1f227a3e
JK		 756 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
757 return -EIO;
758
fbfa2cc5
JK		 759 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
760 S_ISLNK(inode->i_mode)))
b0154891 761 return 0;
fbfa2cc5 762
51dd6249
NJ		 763 trace_f2fs_truncate(inode);
764
14b44d23 765 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
c45d6002 766 f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
14b44d23
JK		 767 return -EIO;
768 }
7fa750a1 769
92dffd01 770 /* we should check inline_data size */
b9d777b8 771 if (!f2fs_may_inline_data(inode)) {
b0154891
CY		 772 err = f2fs_convert_inline_inode(inode);
773 if (err)
774 return err;
92dffd01
JK		 775 }
776
c42d28ce 777 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
b0154891
CY		 778 if (err)
779 return err;
780
078cd827 781 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 782 f2fs_mark_inode_dirty_sync(inode, false);
b0154891 783 return 0;
fbfa2cc5
JK		 784}
785
a528d35e 786int f2fs_getattr(const struct path *path, struct kstat *stat,
1c6d8ee4 787 u32 request_mask, unsigned int query_flags)
fbfa2cc5 788{
a528d35e 789 struct inode *inode = d_inode(path->dentry);
1c6d8ee4 790 struct f2fs_inode_info *fi = F2FS_I(inode);
1c1d35df 791 struct f2fs_inode *ri;
1c6d8ee4
CY		 792 unsigned int flags;
793
1c1d35df 794 if (f2fs_has_extra_attr(inode) &&
7beb01f7 795 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
1c1d35df
CY		 796 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
797 stat->result_mask |= STATX_BTIME;
798 stat->btime.tv_sec = fi->i_crtime.tv_sec;
799 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
800 }
801
36098557 802 flags = fi->i_flags;
fd26725f
CY		 803 if (flags & F2FS_COMPR_FL)
804 stat->attributes |= STATX_ATTR_COMPRESSED;
59c84408 805 if (flags & F2FS_APPEND_FL)
1c6d8ee4 806 stat->attributes |= STATX_ATTR_APPEND;
62230e0d 807 if (IS_ENCRYPTED(inode))
1c6d8ee4 808 stat->attributes |= STATX_ATTR_ENCRYPTED;
59c84408 809 if (flags & F2FS_IMMUTABLE_FL)
1c6d8ee4 810 stat->attributes |= STATX_ATTR_IMMUTABLE;
59c84408 811 if (flags & F2FS_NODUMP_FL)
1c6d8ee4 812 stat->attributes |= STATX_ATTR_NODUMP;
924e3194
EB		 813 if (IS_VERITY(inode))
814 stat->attributes |= STATX_ATTR_VERITY;
1c6d8ee4 815
fd26725f
CY		 816 stat->attributes_mask |= (STATX_ATTR_COMPRESSED |
817 STATX_ATTR_APPEND |
1c6d8ee4
CY		 818 STATX_ATTR_ENCRYPTED |
819 STATX_ATTR_IMMUTABLE |
924e3194
EB		 820 STATX_ATTR_NODUMP |
821 STATX_ATTR_VERITY);
1c6d8ee4 822
fbfa2cc5 823 generic_fillattr(inode, stat);
5b4267d1
JK		 824
825 /* we need to show initial sectors used for inline_data/dentries */
826 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
827 f2fs_has_inline_dentry(inode))
828 stat->blocks += (stat->size + 511) >> 9;
829
fbfa2cc5
JK		 830 return 0;
831}
832
833#ifdef CONFIG_F2FS_FS_POSIX_ACL
834static void __setattr_copy(struct inode *inode, const struct iattr *attr)
835{
fbfa2cc5
JK		 836 unsigned int ia_valid = attr->ia_valid;
837
838 if (ia_valid & ATTR_UID)
839 inode->i_uid = attr->ia_uid;
840 if (ia_valid & ATTR_GID)
841 inode->i_gid = attr->ia_gid;
eb31e2f6
AG		 842 if (ia_valid & ATTR_ATIME)
843 inode->i_atime = attr->ia_atime;
844 if (ia_valid & ATTR_MTIME)
845 inode->i_mtime = attr->ia_mtime;
846 if (ia_valid & ATTR_CTIME)
847 inode->i_ctime = attr->ia_ctime;
fbfa2cc5
JK		 848 if (ia_valid & ATTR_MODE) {
849 umode_t mode = attr->ia_mode;
850
851 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
852 mode &= ~S_ISGID;
91942321 853 set_acl_inode(inode, mode);
fbfa2cc5
JK		 854 }
855}
856#else
857#define __setattr_copy setattr_copy
858#endif
859
860int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
861{
2b0143b5 862 struct inode *inode = d_inode(dentry);
fbfa2cc5
JK		 863 int err;
864
1f227a3e
JK		 865 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
866 return -EIO;
867
4c8ff709
CY		 868 if ((attr->ia_valid & ATTR_SIZE) &&
869 !f2fs_is_compress_backend_ready(inode))
870 return -EOPNOTSUPP;
871
31051c85 872 err = setattr_prepare(dentry, attr);
fbfa2cc5
JK		 873 if (err)
874 return err;
875
20bb2479
EB		 876 err = fscrypt_prepare_setattr(dentry, attr);
877 if (err)
878 return err;
879
95ae251f
EB		 880 err = fsverity_prepare_setattr(dentry, attr);
881 if (err)
882 return err;
883
0abd675e
CY		 884 if (is_quota_modification(inode, attr)) {
885 err = dquot_initialize(inode);
886 if (err)
887 return err;
888 }
889 if ((attr->ia_valid & ATTR_UID &&
890 !uid_eq(attr->ia_uid, inode->i_uid)) ||
891 (attr->ia_valid & ATTR_GID &&
892 !gid_eq(attr->ia_gid, inode->i_gid))) {
af033b2a 893 f2fs_lock_op(F2FS_I_SB(inode));
0abd675e 894 err = dquot_transfer(inode, attr);
af033b2a
CY		 895 if (err) {
896 set_sbi_flag(F2FS_I_SB(inode),
897 SBI_QUOTA_NEED_REPAIR);
898 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e 899 return err;
af033b2a
CY		 900 }
901 /*
902 * update uid/gid under lock_op(), so that dquot and inode can
903 * be updated atomically.
904 */
905 if (attr->ia_valid & ATTR_UID)
906 inode->i_uid = attr->ia_uid;
907 if (attr->ia_valid & ATTR_GID)
908 inode->i_gid = attr->ia_gid;
909 f2fs_mark_inode_dirty_sync(inode, true);
910 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e
CY		 911 }
912
09db6a2e 913 if (attr->ia_valid & ATTR_SIZE) {
cfb9a34d
JK		 914 loff_t old_size = i_size_read(inode);
915
916 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
917 /*
918 * should convert inline inode before i_size_write to
919 * keep smaller than inline_data size with inline flag.
920 */
921 err = f2fs_convert_inline_inode(inode);
922 if (err)
923 return err;
924 }
a33c1502 925
a33c1502 926 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 927 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c1502
CY		 928
929 truncate_setsize(inode, attr->ia_size);
930
cfb9a34d 931 if (attr->ia_size <= old_size)
9a449e9c 932 err = f2fs_truncate(inode);
a33c1502
CY		 933 /*
934 * do not trim all blocks after i_size if target size is
935 * larger than i_size.
936 */
a33c1502 937 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455 938 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
a33c1502
CY		 939 if (err)
940 return err;
0cab80ee 941
c10c9820 942 spin_lock(&F2FS_I(inode)->i_size_lock);
cfb9a34d 943 inode->i_mtime = inode->i_ctime = current_time(inode);
a0d00fad 944 F2FS_I(inode)->last_disk_size = i_size_read(inode);
c10c9820 945 spin_unlock(&F2FS_I(inode)->i_size_lock);
fbfa2cc5
JK		 946 }
947
948 __setattr_copy(inode, attr);
949
950 if (attr->ia_valid & ATTR_MODE) {
4d57b86d 951 err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
91942321
JK		 952 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
953 inode->i_mode = F2FS_I(inode)->i_acl_mode;
954 clear_inode_flag(inode, FI_ACL_MODE);
fbfa2cc5
JK		 955 }
956 }
957
c0ed4405 958 /* file size may changed here */
ca597bdd 959 f2fs_mark_inode_dirty_sync(inode, true);
15d04354
JK		 960
961 /* inode change will produce dirty node pages flushed by checkpoint */
962 f2fs_balance_fs(F2FS_I_SB(inode), true);
963
fbfa2cc5
JK		 964 return err;
965}
966
967const struct inode_operations f2fs_file_inode_operations = {
968 .getattr = f2fs_getattr,
969 .setattr = f2fs_setattr,
970 .get_acl = f2fs_get_acl,
a6dda0e6 971 .set_acl = f2fs_set_acl,
fbfa2cc5 972 .listxattr = f2fs_listxattr,
9ab70134 973 .fiemap = f2fs_fiemap,
fbfa2cc5
JK		 974};
975
6394328a 976static int fill_zero(struct inode *inode, pgoff_t index,
fbfa2cc5
JK		 977 loff_t start, loff_t len)
978{
4081363f 979 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 980 struct page *page;
981
982 if (!len)
6394328a 983 return 0;
fbfa2cc5 984
2c4db1a6 985 f2fs_balance_fs(sbi, true);
bd43df02 986
e479556b 987 f2fs_lock_op(sbi);
4d57b86d 988 page = f2fs_get_new_data_page(inode, NULL, index, false);
e479556b 989 f2fs_unlock_op(sbi);
fbfa2cc5 990
6394328a
CY		 991 if (IS_ERR(page))
992 return PTR_ERR(page);
993
bae0ee7a 994 f2fs_wait_on_page_writeback(page, DATA, true, true);
6394328a
CY		 995 zero_user(page, start, len);
996 set_page_dirty(page);
997 f2fs_put_page(page, 1);
998 return 0;
fbfa2cc5
JK		 999}
1000
4d57b86d 1001int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
fbfa2cc5 1002{
fbfa2cc5
JK		 1003 int err;
1004
ea58711e 1005 while (pg_start < pg_end) {
fbfa2cc5 1006 struct dnode_of_data dn;
ea58711e 1007 pgoff_t end_offset, count;
9eaeba70 1008
fbfa2cc5 1009 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1010 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
fbfa2cc5 1011 if (err) {
ea58711e 1012 if (err == -ENOENT) {
4d57b86d
CY		 1013 pg_start = f2fs_get_next_page_offset(&dn,
1014 pg_start);
fbfa2cc5 1015 continue;
ea58711e 1016 }
fbfa2cc5
JK		 1017 return err;
1018 }
1019
81ca7350 1020 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
ea58711e
CY		 1021 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
1022
1023 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
1024
4d57b86d 1025 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5 1026 f2fs_put_dnode(&dn);
ea58711e
CY		 1027
1028 pg_start += count;
fbfa2cc5
JK		 1029 }
1030 return 0;
1031}
1032
a66c7b2f 1033static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
fbfa2cc5
JK		 1034{
1035 pgoff_t pg_start, pg_end;
1036 loff_t off_start, off_end;
b9d777b8 1037 int ret;
fbfa2cc5 1038
b9d777b8
JK		 1039 ret = f2fs_convert_inline_inode(inode);
1040 if (ret)
1041 return ret;
9ffe0fb5 1042
09cbfeaf
KS		 1043 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1044 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
fbfa2cc5 1045
09cbfeaf
KS		 1046 off_start = offset & (PAGE_SIZE - 1);
1047 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5
JK		 1048
1049 if (pg_start == pg_end) {
6394328a 1050 ret = fill_zero(inode, pg_start, off_start,
fbfa2cc5 1051 off_end - off_start);
6394328a
CY		 1052 if (ret)
1053 return ret;
fbfa2cc5 1054 } else {
6394328a
CY		 1055 if (off_start) {
1056 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1057 PAGE_SIZE - off_start);
6394328a
CY		 1058 if (ret)
1059 return ret;
1060 }
1061 if (off_end) {
1062 ret = fill_zero(inode, pg_end, 0, off_end);
1063 if (ret)
1064 return ret;
1065 }
fbfa2cc5
JK		 1066
1067 if (pg_start < pg_end) {
1068 struct address_space *mapping = inode->i_mapping;
1069 loff_t blk_start, blk_end;
4081363f 1070 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1127a3d4 1071
2c4db1a6 1072 f2fs_balance_fs(sbi, true);
fbfa2cc5 1073
09cbfeaf
KS		 1074 blk_start = (loff_t)pg_start << PAGE_SHIFT;
1075 blk_end = (loff_t)pg_end << PAGE_SHIFT;
a33c1502 1076
a33c1502 1077 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 1078 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c1502 1079
fbfa2cc5
JK		 1080 truncate_inode_pages_range(mapping, blk_start,
1081 blk_end - 1);
39936837 1082
e479556b 1083 f2fs_lock_op(sbi);
4d57b86d 1084 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
e479556b 1085 f2fs_unlock_op(sbi);
a33c1502 1086
5a3a2d83 1087 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455 1088 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
fbfa2cc5
JK		 1089 }
1090 }
1091
fbfa2cc5
JK		 1092 return ret;
1093}
1094
0a2aa8fb
JK		 1095static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1096 int *do_replace, pgoff_t off, pgoff_t len)
b4ace337
CY		 1097{
1098 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1099 struct dnode_of_data dn;
0a2aa8fb 1100 int ret, done, i;
ecbaa406 1101
0a2aa8fb 1102next_dnode:
6e2c64ad 1103 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1104 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
6e2c64ad
JK		 1105 if (ret && ret != -ENOENT) {
1106 return ret;
1107 } else if (ret == -ENOENT) {
0a2aa8fb
JK		 1108 if (dn.max_level == 0)
1109 return -ENOENT;
4c8ff709
CY		 1110 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
1111 dn.ofs_in_node, len);
0a2aa8fb
JK		 1112 blkaddr += done;
1113 do_replace += done;
1114 goto next;
1115 }
1116
1117 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1118 dn.ofs_in_node, len);
1119 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
a2ced1ce 1120 *blkaddr = f2fs_data_blkaddr(&dn);
93770ab7
CY		 1121
1122 if (__is_valid_data_blkaddr(*blkaddr) &&
1123 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1124 DATA_GENERIC_ENHANCE)) {
1125 f2fs_put_dnode(&dn);
10f966bb 1126 return -EFSCORRUPTED;
93770ab7
CY		 1127 }
1128
4d57b86d 1129 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
0a2aa8fb 1130
b0332a0f 1131 if (f2fs_lfs_mode(sbi)) {
0a2aa8fb 1132 f2fs_put_dnode(&dn);
fd114ab2 1133 return -EOPNOTSUPP;
0a2aa8fb
JK		 1134 }
1135
6e2c64ad 1136 /* do not invalidate this block address */
f28b3434 1137 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
0a2aa8fb 1138 *do_replace = 1;
b4ace337 1139 }
6e2c64ad 1140 }
0a2aa8fb
JK		 1141 f2fs_put_dnode(&dn);
1142next:
1143 len -= done;
1144 off += done;
1145 if (len)
1146 goto next_dnode;
1147 return 0;
1148}
b4ace337 1149
0a2aa8fb
JK		 1150static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1151 int *do_replace, pgoff_t off, int len)
1152{
1153 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1154 struct dnode_of_data dn;
1155 int ret, i;
b4ace337 1156
0a2aa8fb
JK		 1157 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1158 if (*do_replace == 0)
1159 continue;
b4ace337 1160
0a2aa8fb 1161 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1162 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
0a2aa8fb
JK		 1163 if (ret) {
1164 dec_valid_block_count(sbi, inode, 1);
4d57b86d 1165 f2fs_invalidate_blocks(sbi, *blkaddr);
0a2aa8fb
JK		 1166 } else {
1167 f2fs_update_data_blkaddr(&dn, *blkaddr);
36abef4e 1168 }
0a2aa8fb
JK		 1169 f2fs_put_dnode(&dn);
1170 }
1171 return 0;
1172}
1173
1174static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1175 block_t *blkaddr, int *do_replace,
1176 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1177{
1178 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1179 pgoff_t i = 0;
1180 int ret;
36abef4e 1181
0a2aa8fb
JK		 1182 while (i < len) {
1183 if (blkaddr[i] == NULL_ADDR && !full) {
1184 i++;
1185 continue;
6e2c64ad 1186 }
b4ace337 1187
0a2aa8fb
JK		 1188 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1189 struct dnode_of_data dn;
1190 struct node_info ni;
1191 size_t new_size;
1192 pgoff_t ilen;
b4ace337 1193
0a2aa8fb 1194 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
4d57b86d 1195 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
0a2aa8fb
JK		 1196 if (ret)
1197 return ret;
b4ace337 1198
7735730d
CY		 1199 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
1200 if (ret) {
1201 f2fs_put_dnode(&dn);
1202 return ret;
1203 }
1204
0a2aa8fb
JK		 1205 ilen = min((pgoff_t)
1206 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1207 dn.ofs_in_node, len - i);
1208 do {
a2ced1ce 1209 dn.data_blkaddr = f2fs_data_blkaddr(&dn);
4d57b86d 1210 f2fs_truncate_data_blocks_range(&dn, 1);
0a2aa8fb
JK		 1211
1212 if (do_replace[i]) {
1213 f2fs_i_blocks_write(src_inode,
0abd675e 1214 1, false, false);
0a2aa8fb 1215 f2fs_i_blocks_write(dst_inode,
0abd675e 1216 1, true, false);
0a2aa8fb
JK		 1217 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1218 blkaddr[i], ni.version, true, false);
1219
1220 do_replace[i] = 0;
1221 }
1222 dn.ofs_in_node++;
1223 i++;
1f0d5c91 1224 new_size = (loff_t)(dst + i) << PAGE_SHIFT;
0a2aa8fb
JK		 1225 if (dst_inode->i_size < new_size)
1226 f2fs_i_size_write(dst_inode, new_size);
e87f7329 1227 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
6e2c64ad 1228
0a2aa8fb
JK		 1229 f2fs_put_dnode(&dn);
1230 } else {
1231 struct page *psrc, *pdst;
1232
4d57b86d
CY		 1233 psrc = f2fs_get_lock_data_page(src_inode,
1234 src + i, true);
0a2aa8fb
JK		 1235 if (IS_ERR(psrc))
1236 return PTR_ERR(psrc);
4d57b86d 1237 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
0a2aa8fb
JK		 1238 true);
1239 if (IS_ERR(pdst)) {
1240 f2fs_put_page(psrc, 1);
1241 return PTR_ERR(pdst);
1242 }
1243 f2fs_copy_page(psrc, pdst);
1244 set_page_dirty(pdst);
1245 f2fs_put_page(pdst, 1);
6e2c64ad 1246 f2fs_put_page(psrc, 1);
b4ace337 1247
4d57b86d
CY		 1248 ret = f2fs_truncate_hole(src_inode,
1249 src + i, src + i + 1);
0a2aa8fb
JK		 1250 if (ret)
1251 return ret;
1252 i++;
1253 }
6e2c64ad
JK		 1254 }
1255 return 0;
0a2aa8fb 1256}
b4ace337 1257
0a2aa8fb
JK		 1258static int __exchange_data_block(struct inode *src_inode,
1259 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
363cad7f 1260 pgoff_t len, bool full)
0a2aa8fb
JK		 1261{
1262 block_t *src_blkaddr;
1263 int *do_replace;
363cad7f 1264 pgoff_t olen;
0a2aa8fb
JK		 1265 int ret;
1266
363cad7f 1267 while (len) {
d02a6e61 1268 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
0a2aa8fb 1269
628b3d14 1270 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1271 array_size(olen, sizeof(block_t)),
4f4460c0 1272 GFP_NOFS);
363cad7f
JK		 1273 if (!src_blkaddr)
1274 return -ENOMEM;
0a2aa8fb 1275
628b3d14 1276 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1277 array_size(olen, sizeof(int)),
4f4460c0 1278 GFP_NOFS);
363cad7f
JK		 1279 if (!do_replace) {
1280 kvfree(src_blkaddr);
1281 return -ENOMEM;
1282 }
0a2aa8fb 1283
363cad7f
JK		 1284 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1285 do_replace, src, olen);
1286 if (ret)
1287 goto roll_back;
0a2aa8fb 1288
363cad7f
JK		 1289 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1290 do_replace, src, dst, olen, full);
1291 if (ret)
1292 goto roll_back;
1293
1294 src += olen;
1295 dst += olen;
1296 len -= olen;
1297
1298 kvfree(src_blkaddr);
1299 kvfree(do_replace);
1300 }
0a2aa8fb
JK		 1301 return 0;
1302
1303roll_back:
9fd62605 1304 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
0a2aa8fb
JK		 1305 kvfree(src_blkaddr);
1306 kvfree(do_replace);
6e2c64ad
JK		 1307 return ret;
1308}
b4ace337 1309
6f8d4455 1310static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
6e2c64ad
JK		 1311{
1312 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f91108b8 1313 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
6f8d4455
JK		 1314 pgoff_t start = offset >> PAGE_SHIFT;
1315 pgoff_t end = (offset + len) >> PAGE_SHIFT;
0a2aa8fb 1316 int ret;
6e2c64ad 1317
0a2aa8fb 1318 f2fs_balance_fs(sbi, true);
5f281fab 1319
6f8d4455
JK		 1320 /* avoid gc operation during block exchange */
1321 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1322 down_write(&F2FS_I(inode)->i_mmap_sem);
5f281fab 1323
6f8d4455
JK		 1324 f2fs_lock_op(sbi);
1325 f2fs_drop_extent_tree(inode);
1326 truncate_pagecache(inode, offset);
0a2aa8fb
JK		 1327 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1328 f2fs_unlock_op(sbi);
6f8d4455
JK		 1329
1330 up_write(&F2FS_I(inode)->i_mmap_sem);
1331 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
b4ace337
CY		 1332 return ret;
1333}
1334
1335static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1336{
b4ace337
CY		 1337 loff_t new_size;
1338 int ret;
1339
b4ace337
CY		 1340 if (offset + len >= i_size_read(inode))
1341 return -EINVAL;
1342
1343 /* collapse range should be aligned to block size of f2fs. */
1344 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1345 return -EINVAL;
1346
b9d777b8
JK		 1347 ret = f2fs_convert_inline_inode(inode);
1348 if (ret)
1349 return ret;
97a7b2c2 1350
b4ace337
CY		 1351 /* write out all dirty pages from offset */
1352 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1353 if (ret)
6f8d4455 1354 return ret;
b4ace337 1355
6f8d4455 1356 ret = f2fs_do_collapse(inode, offset, len);
b4ace337 1357 if (ret)
6f8d4455 1358 return ret;
b4ace337 1359
6e2c64ad 1360 /* write out all moved pages, if possible */
6f8d4455 1361 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1362 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1363 truncate_pagecache(inode, offset);
1364
b4ace337 1365 new_size = i_size_read(inode) - len;
c42d28ce 1366 ret = f2fs_truncate_blocks(inode, new_size, true);
6f8d4455 1367 up_write(&F2FS_I(inode)->i_mmap_sem);
b4ace337 1368 if (!ret)
fc9581c8 1369 f2fs_i_size_write(inode, new_size);
b4ace337
CY		 1370 return ret;
1371}
1372
6e961949
CY		 1373static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1374 pgoff_t end)
1375{
1376 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1377 pgoff_t index = start;
1378 unsigned int ofs_in_node = dn->ofs_in_node;
1379 blkcnt_t count = 0;
1380 int ret;
1381
1382 for (; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1383 if (f2fs_data_blkaddr(dn) == NULL_ADDR)
6e961949
CY		 1384 count++;
1385 }
1386
1387 dn->ofs_in_node = ofs_in_node;
4d57b86d 1388 ret = f2fs_reserve_new_blocks(dn, count);
6e961949
CY		 1389 if (ret)
1390 return ret;
1391
1392 dn->ofs_in_node = ofs_in_node;
1393 for (index = start; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1394 dn->data_blkaddr = f2fs_data_blkaddr(dn);
6e961949 1395 /*
4d57b86d 1396 * f2fs_reserve_new_blocks will not guarantee entire block
6e961949
CY		 1397 * allocation.
1398 */
1399 if (dn->data_blkaddr == NULL_ADDR) {
1400 ret = -ENOSPC;
1401 break;
1402 }
1403 if (dn->data_blkaddr != NEW_ADDR) {
4d57b86d 1404 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
6e961949 1405 dn->data_blkaddr = NEW_ADDR;
4d57b86d 1406 f2fs_set_data_blkaddr(dn);
6e961949
CY		 1407 }
1408 }
1409
1410 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1411
1412 return ret;
1413}
1414
75cd4e09
CY		 1415static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1416 int mode)
1417{
1418 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1419 struct address_space *mapping = inode->i_mapping;
1420 pgoff_t index, pg_start, pg_end;
1421 loff_t new_size = i_size_read(inode);
1422 loff_t off_start, off_end;
1423 int ret = 0;
1424
75cd4e09
CY		 1425 ret = inode_newsize_ok(inode, (len + offset));
1426 if (ret)
1427 return ret;
1428
b9d777b8
JK		 1429 ret = f2fs_convert_inline_inode(inode);
1430 if (ret)
1431 return ret;
75cd4e09
CY		 1432
1433 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1434 if (ret)
6f8d4455 1435 return ret;
75cd4e09 1436
09cbfeaf
KS		 1437 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1438 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
75cd4e09 1439
09cbfeaf
KS		 1440 off_start = offset & (PAGE_SIZE - 1);
1441 off_end = (offset + len) & (PAGE_SIZE - 1);
75cd4e09
CY		 1442
1443 if (pg_start == pg_end) {
6394328a
CY		 1444 ret = fill_zero(inode, pg_start, off_start,
1445 off_end - off_start);
1446 if (ret)
6f8d4455 1447 return ret;
6394328a 1448
75cd4e09
CY		 1449 new_size = max_t(loff_t, new_size, offset + len);
1450 } else {
1451 if (off_start) {
6394328a 1452 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1453 PAGE_SIZE - off_start);
6394328a 1454 if (ret)
6f8d4455 1455 return ret;
6394328a 1456
75cd4e09 1457 new_size = max_t(loff_t, new_size,
09cbfeaf 1458 (loff_t)pg_start << PAGE_SHIFT);
75cd4e09
CY		 1459 }
1460
6e961949 1461 for (index = pg_start; index < pg_end;) {
75cd4e09 1462 struct dnode_of_data dn;
6e961949
CY		 1463 unsigned int end_offset;
1464 pgoff_t end;
75cd4e09 1465
c7079853 1466 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 1467 down_write(&F2FS_I(inode)->i_mmap_sem);
c7079853
CY		 1468
1469 truncate_pagecache_range(inode,
1470 (loff_t)index << PAGE_SHIFT,
1471 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1472
75cd4e09
CY		 1473 f2fs_lock_op(sbi);
1474
6e961949 1475 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1476 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
75cd4e09
CY		 1477 if (ret) {
1478 f2fs_unlock_op(sbi);
6f8d4455 1479 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853 1480 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
75cd4e09
CY		 1481 goto out;
1482 }
1483
6e961949
CY		 1484 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1485 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1486
1487 ret = f2fs_do_zero_range(&dn, index, end);
75cd4e09 1488 f2fs_put_dnode(&dn);
c7079853 1489
75cd4e09 1490 f2fs_unlock_op(sbi);
6f8d4455 1491 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853 1492 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
9434fcde
CY		 1493
1494 f2fs_balance_fs(sbi, dn.node_changed);
1495
6e961949
CY		 1496 if (ret)
1497 goto out;
75cd4e09 1498
6e961949 1499 index = end;
75cd4e09 1500 new_size = max_t(loff_t, new_size,
6e961949 1501 (loff_t)index << PAGE_SHIFT);
75cd4e09
CY		 1502 }
1503
1504 if (off_end) {
6394328a
CY		 1505 ret = fill_zero(inode, pg_end, 0, off_end);
1506 if (ret)
1507 goto out;
1508
75cd4e09
CY		 1509 new_size = max_t(loff_t, new_size, offset + len);
1510 }
1511 }
1512
1513out:
17cd07ae
CY		 1514 if (new_size > i_size_read(inode)) {
1515 if (mode & FALLOC_FL_KEEP_SIZE)
1516 file_set_keep_isize(inode);
1517 else
1518 f2fs_i_size_write(inode, new_size);
1519 }
75cd4e09
CY		 1520 return ret;
1521}
1522
f62185d0
CY		 1523static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1524{
1525 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
0a2aa8fb 1526 pgoff_t nr, pg_start, pg_end, delta, idx;
f62185d0 1527 loff_t new_size;
6e2c64ad 1528 int ret = 0;
f62185d0 1529
f62185d0 1530 new_size = i_size_read(inode) + len;
46e82fb1
KM		 1531 ret = inode_newsize_ok(inode, new_size);
1532 if (ret)
1533 return ret;
f62185d0
CY		 1534
1535 if (offset >= i_size_read(inode))
1536 return -EINVAL;
1537
1538 /* insert range should be aligned to block size of f2fs. */
1539 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1540 return -EINVAL;
1541
b9d777b8
JK		 1542 ret = f2fs_convert_inline_inode(inode);
1543 if (ret)
1544 return ret;
97a7b2c2 1545
2c4db1a6 1546 f2fs_balance_fs(sbi, true);
2a340760 1547
5a3a2d83 1548 down_write(&F2FS_I(inode)->i_mmap_sem);
c42d28ce 1549 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
6f8d4455 1550 up_write(&F2FS_I(inode)->i_mmap_sem);
f62185d0 1551 if (ret)
6f8d4455 1552 return ret;
f62185d0
CY		 1553
1554 /* write out all dirty pages from offset */
1555 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1556 if (ret)
6f8d4455 1557 return ret;
f62185d0 1558
09cbfeaf
KS		 1559 pg_start = offset >> PAGE_SHIFT;
1560 pg_end = (offset + len) >> PAGE_SHIFT;
f62185d0 1561 delta = pg_end - pg_start;
f91108b8 1562 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
0a2aa8fb 1563
6f8d4455
JK		 1564 /* avoid gc operation during block exchange */
1565 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1566 down_write(&F2FS_I(inode)->i_mmap_sem);
1567 truncate_pagecache(inode, offset);
1568
0a2aa8fb
JK		 1569 while (!ret && idx > pg_start) {
1570 nr = idx - pg_start;
1571 if (nr > delta)
1572 nr = delta;
1573 idx -= nr;
f62185d0 1574
f62185d0 1575 f2fs_lock_op(sbi);
5f281fab
JK		 1576 f2fs_drop_extent_tree(inode);
1577
0a2aa8fb
JK		 1578 ret = __exchange_data_block(inode, inode, idx,
1579 idx + delta, nr, false);
f62185d0
CY		 1580 f2fs_unlock_op(sbi);
1581 }
6f8d4455
JK		 1582 up_write(&F2FS_I(inode)->i_mmap_sem);
1583 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
f62185d0 1584
6e2c64ad 1585 /* write out all moved pages, if possible */
6f8d4455 1586 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1587 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1588 truncate_pagecache(inode, offset);
6f8d4455 1589 up_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1590
1591 if (!ret)
fc9581c8 1592 f2fs_i_size_write(inode, new_size);
f62185d0
CY		 1593 return ret;
1594}
1595
fbfa2cc5
JK		 1596static int expand_inode_data(struct inode *inode, loff_t offset,
1597 loff_t len, int mode)
1598{
4081363f 1599 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d5097be5 1600 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
f9d6d059
CY		 1601 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1602 .m_may_create = true };
e12dd7bd 1603 pgoff_t pg_end;
fbfa2cc5 1604 loff_t new_size = i_size_read(inode);
e12dd7bd 1605 loff_t off_end;
a7de6086 1606 int err;
fbfa2cc5 1607
a7de6086
JK		 1608 err = inode_newsize_ok(inode, (len + offset));
1609 if (err)
1610 return err;
fbfa2cc5 1611
a7de6086
JK		 1612 err = f2fs_convert_inline_inode(inode);
1613 if (err)
1614 return err;
9e09fc85 1615
2c4db1a6 1616 f2fs_balance_fs(sbi, true);
2a340760 1617
e12dd7bd 1618 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
09cbfeaf 1619 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5 1620
e12dd7bd
JK		 1621 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
1622 map.m_len = pg_end - map.m_lblk;
1623 if (off_end)
1624 map.m_len++;
ead43275 1625
f5a53edc
JK		 1626 if (!map.m_len)
1627 return 0;
1628
1629 if (f2fs_is_pinned_file(inode)) {
1630 block_t len = (map.m_len >> sbi->log_blocks_per_seg) <<
1631 sbi->log_blocks_per_seg;
1632 block_t done = 0;
1633
1634 if (map.m_len % sbi->blocks_per_seg)
1635 len += sbi->blocks_per_seg;
1636
1637 map.m_len = sbi->blocks_per_seg;
1638next_alloc:
1639 if (has_not_enough_free_secs(sbi, 0,
1640 GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
fb24fea7 1641 down_write(&sbi->gc_lock);
f5a53edc
JK		 1642 err = f2fs_gc(sbi, true, false, NULL_SEGNO);
1643 if (err && err != -ENODATA && err != -EAGAIN)
1644 goto out_err;
1645 }
1646
1647 down_write(&sbi->pin_sem);
fd612648
DJ		 1648
1649 f2fs_lock_op(sbi);
d0b9e42a 1650 f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
fd612648
DJ		 1651 f2fs_unlock_op(sbi);
1652
d0b9e42a 1653 map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f5a53edc 1654 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
d0b9e42a 1655
f5a53edc 1656 up_write(&sbi->pin_sem);
cad3836f 1657
f5a53edc
JK		 1658 done += map.m_len;
1659 len -= map.m_len;
1660 map.m_lblk += map.m_len;
1661 if (!err && len)
1662 goto next_alloc;
1663
1664 map.m_len = done;
1665 } else {
1666 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
1667 }
1668out_err:
a7de6086 1669 if (err) {
e12dd7bd 1670 pgoff_t last_off;
fbfa2cc5 1671
e12dd7bd 1672 if (!map.m_len)
a7de6086 1673 return err;
98397ff3 1674
e12dd7bd
JK		 1675 last_off = map.m_lblk + map.m_len - 1;
1676
1677 /* update new size to the failed position */
1061fd48 1678 new_size = (last_off == pg_end) ? offset + len :
e12dd7bd
JK		 1679 (loff_t)(last_off + 1) << PAGE_SHIFT;
1680 } else {
1681 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
fbfa2cc5
JK		 1682 }
1683
e8ed90a6
CY		 1684 if (new_size > i_size_read(inode)) {
1685 if (mode & FALLOC_FL_KEEP_SIZE)
1686 file_set_keep_isize(inode);
1687 else
1688 f2fs_i_size_write(inode, new_size);
1689 }
fbfa2cc5 1690
a7de6086 1691 return err;
fbfa2cc5
JK		 1692}
1693
1694static long f2fs_fallocate(struct file *file, int mode,
1695 loff_t offset, loff_t len)
1696{
6131ffaa 1697 struct inode *inode = file_inode(file);
587c0a42 1698 long ret = 0;
fbfa2cc5 1699
1f227a3e
JK		 1700 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1701 return -EIO;
00e09c0b
CY		 1702 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1703 return -ENOSPC;
4c8ff709
CY		 1704 if (!f2fs_is_compress_backend_ready(inode))
1705 return -EOPNOTSUPP;
1f227a3e 1706
c998012b
CY		 1707 /* f2fs only support ->fallocate for regular file */
1708 if (!S_ISREG(inode->i_mode))
1709 return -EINVAL;
1710
62230e0d 1711 if (IS_ENCRYPTED(inode) &&
f62185d0 1712 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
fcc85a4d
JK		 1713 return -EOPNOTSUPP;
1714
4c8ff709
CY		 1715 if (f2fs_compressed_file(inode) &&
1716 (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
1717 FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
1718 return -EOPNOTSUPP;
1719
b4ace337 1720 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
f62185d0
CY		 1721 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1722 FALLOC_FL_INSERT_RANGE))
fbfa2cc5
JK		 1723 return -EOPNOTSUPP;
1724
5955102c 1725 inode_lock(inode);
3375f696 1726
587c0a42
TY		 1727 if (mode & FALLOC_FL_PUNCH_HOLE) {
1728 if (offset >= inode->i_size)
1729 goto out;
1730
a66c7b2f 1731 ret = punch_hole(inode, offset, len);
b4ace337
CY		 1732 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1733 ret = f2fs_collapse_range(inode, offset, len);
75cd4e09
CY		 1734 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1735 ret = f2fs_zero_range(inode, offset, len, mode);
f62185d0
CY		 1736 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1737 ret = f2fs_insert_range(inode, offset, len);
b4ace337 1738 } else {
fbfa2cc5 1739 ret = expand_inode_data(inode, offset, len, mode);
b4ace337 1740 }
fbfa2cc5 1741
3af60a49 1742 if (!ret) {
078cd827 1743 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 1744 f2fs_mark_inode_dirty_sync(inode, false);
d0239e1b 1745 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3af60a49 1746 }
3375f696 1747
587c0a42 1748out:
5955102c 1749 inode_unlock(inode);
3375f696 1750
c01e2853 1751 trace_f2fs_fallocate(inode, mode, offset, len, ret);
fbfa2cc5
JK		 1752 return ret;
1753}
1754
1e84371f
JK		 1755static int f2fs_release_file(struct inode *inode, struct file *filp)
1756{
de5307e4
JK		 1757 /*
1758 * f2fs_relase_file is called at every close calls. So we should
1759 * not drop any inmemory pages by close called by other process.
1760 */
1761 if (!(filp->f_mode & FMODE_WRITE) ||
1762 atomic_read(&inode->i_writecount) != 1)
1763 return 0;
1764
1e84371f
JK		 1765 /* some remained atomic pages should discarded */
1766 if (f2fs_is_atomic_file(inode))
4d57b86d 1767 f2fs_drop_inmem_pages(inode);
1e84371f 1768 if (f2fs_is_volatile_file(inode)) {
91942321 1769 set_inode_flag(inode, FI_DROP_CACHE);
1e84371f 1770 filemap_fdatawrite(inode->i_mapping);
91942321 1771 clear_inode_flag(inode, FI_DROP_CACHE);
dfa74280
CY		 1772 clear_inode_flag(inode, FI_VOLATILE_FILE);
1773 stat_dec_volatile_write(inode);
1e84371f
JK		 1774 }
1775 return 0;
1776}
1777
7a10f017 1778static int f2fs_file_flush(struct file *file, fl_owner_t id)
fbfa2cc5 1779{
7a10f017
JK		 1780 struct inode *inode = file_inode(file);
1781
1782 /*
1783 * If the process doing a transaction is crashed, we should do
1784 * roll-back. Otherwise, other reader/write can see corrupted database
1785 * until all the writers close its file. Since this should be done
1786 * before dropping file lock, it needs to do in ->flush.
1787 */
1788 if (f2fs_is_atomic_file(inode) &&
1789 F2FS_I(inode)->inmem_task == current)
4d57b86d 1790 f2fs_drop_inmem_pages(inode);
7a10f017 1791 return 0;
fbfa2cc5
JK		 1792}
1793
36098557 1794static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
2c1d0305
CY		 1795{
1796 struct f2fs_inode_info *fi = F2FS_I(inode);
99eabb91
JK		 1797 u32 masked_flags = fi->i_flags & mask;
1798
1799 f2fs_bug_on(F2FS_I_SB(inode), (iflags & ~mask));
2c1d0305
CY		 1800
1801 /* Is it quota file? Do not allow user to mess with it */
1802 if (IS_NOQUOTA(inode))
1803 return -EPERM;
1804
99eabb91 1805 if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
2c2eb7a3
DR		 1806 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1807 return -EOPNOTSUPP;
1808 if (!f2fs_empty_dir(inode))
1809 return -ENOTEMPTY;
1810 }
1811
4c8ff709
CY		 1812 if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
1813 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
1814 return -EOPNOTSUPP;
1815 if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
1816 return -EINVAL;
1817 }
1818
99eabb91 1819 if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
aa576970 1820 if (masked_flags & F2FS_COMPR_FL) {
78134d03 1821 if (!f2fs_disable_compressed_file(inode))
2536ac68
CY		 1822 return -EINVAL;
1823 }
4c8ff709
CY		 1824 if (iflags & F2FS_NOCOMP_FL)
1825 return -EINVAL;
1826 if (iflags & F2FS_COMPR_FL) {
4c8ff709
CY		 1827 if (!f2fs_may_compress(inode))
1828 return -EINVAL;
519a5a2f
CY		 1829 if (S_ISREG(inode->i_mode) && inode->i_size)
1830 return -EINVAL;
4c8ff709
CY		 1831
1832 set_compress_context(inode);
1833 }
1834 }
99eabb91
JK		 1835 if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
1836 if (masked_flags & F2FS_COMPR_FL)
4c8ff709
CY		 1837 return -EINVAL;
1838 }
1839
d5e5efa2 1840 fi->i_flags = iflags | (fi->i_flags & ~mask);
4c8ff709
CY		 1841 f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
1842 (fi->i_flags & F2FS_NOCOMP_FL));
2c1d0305 1843
59c84408 1844 if (fi->i_flags & F2FS_PROJINHERIT_FL)
2c1d0305
CY		 1845 set_inode_flag(inode, FI_PROJ_INHERIT);
1846 else
1847 clear_inode_flag(inode, FI_PROJ_INHERIT);
1848
1849 inode->i_ctime = current_time(inode);
1850 f2fs_set_inode_flags(inode);
b32e0190 1851 f2fs_mark_inode_dirty_sync(inode, true);
2c1d0305
CY		 1852 return 0;
1853}
1854
36098557
EB		 1855/* FS_IOC_GETFLAGS and FS_IOC_SETFLAGS support */
1856
1857/*
1858 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1859 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1860 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1861 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
1862 */
1863
1864static const struct {
1865 u32 iflag;
1866 u32 fsflag;
1867} f2fs_fsflags_map[] = {
4c8ff709 1868 { F2FS_COMPR_FL, FS_COMPR_FL },
36098557
EB		 1869 { F2FS_SYNC_FL, FS_SYNC_FL },
1870 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1871 { F2FS_APPEND_FL, FS_APPEND_FL },
1872 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1873 { F2FS_NOATIME_FL, FS_NOATIME_FL },
4c8ff709 1874 { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
36098557
EB		 1875 { F2FS_INDEX_FL, FS_INDEX_FL },
1876 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1877 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
2c2eb7a3 1878 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
36098557
EB		 1879};
1880
1881#define F2FS_GETTABLE_FS_FL ( \
4c8ff709 1882 FS_COMPR_FL | \
36098557
EB		 1883 FS_SYNC_FL | \
1884 FS_IMMUTABLE_FL | \
1885 FS_APPEND_FL | \
1886 FS_NODUMP_FL | \
1887 FS_NOATIME_FL | \
4c8ff709 1888 FS_NOCOMP_FL | \
36098557
EB		 1889 FS_INDEX_FL | \
1890 FS_DIRSYNC_FL | \
1891 FS_PROJINHERIT_FL | \
1892 FS_ENCRYPT_FL | \
1893 FS_INLINE_DATA_FL | \
95ae251f 1894 FS_NOCOW_FL | \
fbc246a1 1895 FS_VERITY_FL | \
2c2eb7a3 1896 FS_CASEFOLD_FL)
36098557
EB		 1897
1898#define F2FS_SETTABLE_FS_FL ( \
4c8ff709 1899 FS_COMPR_FL | \
36098557
EB		 1900 FS_SYNC_FL | \
1901 FS_IMMUTABLE_FL | \
1902 FS_APPEND_FL | \
1903 FS_NODUMP_FL | \
1904 FS_NOATIME_FL | \
4c8ff709 1905 FS_NOCOMP_FL | \
36098557 1906 FS_DIRSYNC_FL | \
2c2eb7a3
DR		 1907 FS_PROJINHERIT_FL | \
1908 FS_CASEFOLD_FL)
36098557
EB		 1909
1910/* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
1911static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
1912{
1913 u32 fsflags = 0;
1914 int i;
1915
1916 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1917 if (iflags & f2fs_fsflags_map[i].iflag)
1918 fsflags |= f2fs_fsflags_map[i].fsflag;
1919
1920 return fsflags;
1921}
1922
1923/* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
1924static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
1925{
1926 u32 iflags = 0;
1927 int i;
1928
1929 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1930 if (fsflags & f2fs_fsflags_map[i].fsflag)
1931 iflags |= f2fs_fsflags_map[i].iflag;
1932
1933 return iflags;
1934}
1935
1936static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
1937{
1938 struct inode *inode = file_inode(filp);
1939 struct f2fs_inode_info *fi = F2FS_I(inode);
1940 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1941
1942 if (IS_ENCRYPTED(inode))
1943 fsflags |= FS_ENCRYPT_FL;
95ae251f
EB		 1944 if (IS_VERITY(inode))
1945 fsflags |= FS_VERITY_FL;
36098557
EB		 1946 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
1947 fsflags |= FS_INLINE_DATA_FL;
1948 if (is_inode_flag_set(inode, FI_PIN_FILE))
1949 fsflags |= FS_NOCOW_FL;
1950
1951 fsflags &= F2FS_GETTABLE_FS_FL;
1952
1953 return put_user(fsflags, (int __user *)arg);
1954}
1955
52656e6c
JK		 1956static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
1957{
1958 struct inode *inode = file_inode(filp);
a1f32eec
EB		 1959 struct f2fs_inode_info *fi = F2FS_I(inode);
1960 u32 fsflags, old_fsflags;
36098557 1961 u32 iflags;
52656e6c 1962 int ret;
fbfa2cc5 1963
7fb17fe4
CY		 1964 if (!inode_owner_or_capable(inode))
1965 return -EACCES;
1966
36098557 1967 if (get_user(fsflags, (int __user *)arg))
7fb17fe4
CY		 1968 return -EFAULT;
1969
36098557
EB		 1970 if (fsflags & ~F2FS_GETTABLE_FS_FL)
1971 return -EOPNOTSUPP;
1972 fsflags &= F2FS_SETTABLE_FS_FL;
1973
1974 iflags = f2fs_fsflags_to_iflags(fsflags);
1975 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
1976 return -EOPNOTSUPP;
1977
52656e6c
JK		 1978 ret = mnt_want_write_file(filp);
1979 if (ret)
1980 return ret;
fbfa2cc5 1981
5955102c 1982 inode_lock(inode);
fbfa2cc5 1983
a1f32eec
EB		 1984 old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1985 ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
1986 if (ret)
1987 goto out;
1988
36098557
EB		 1989 ret = f2fs_setflags_common(inode, iflags,
1990 f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
a1f32eec 1991out:
a72d4b97 1992 inode_unlock(inode);
52656e6c
JK		 1993 mnt_drop_write_file(filp);
1994 return ret;
1995}
4b2fecc8 1996
d49f3e89
CY		 1997static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1998{
1999 struct inode *inode = file_inode(filp);
2000
2001 return put_user(inode->i_generation, (int __user *)arg);
2002}
2003
88b88a66
JK		 2004static int f2fs_ioc_start_atomic_write(struct file *filp)
2005{
2006 struct inode *inode = file_inode(filp);
743b620c
JK		 2007 struct f2fs_inode_info *fi = F2FS_I(inode);
2008 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f4c9c743 2009 int ret;
88b88a66
JK		 2010
2011 if (!inode_owner_or_capable(inode))
2012 return -EACCES;
2013
e811898c
JK		 2014 if (!S_ISREG(inode->i_mode))
2015 return -EINVAL;
2016
038d0698
CY		 2017 if (filp->f_flags & O_DIRECT)
2018 return -EINVAL;
2019
7fb17fe4
CY		 2020 ret = mnt_want_write_file(filp);
2021 if (ret)
2022 return ret;
2023
0fac558b
CY		 2024 inode_lock(inode);
2025
4c8ff709
CY		 2026 f2fs_disable_compressed_file(inode);
2027
455e3a58
JK		 2028 if (f2fs_is_atomic_file(inode)) {
2029 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
2030 ret = -EINVAL;
7fb17fe4 2031 goto out;
455e3a58 2032 }
88b88a66 2033
f4c9c743
CY		 2034 ret = f2fs_convert_inline_inode(inode);
2035 if (ret)
7fb17fe4 2036 goto out;
88b88a66 2037
6f8d4455
JK		 2038 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
2039
31867b23
JK		 2040 /*
2041 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
2042 * f2fs_is_atomic_file.
2043 */
2044 if (get_dirty_pages(inode))
dcbb4c10
JP		 2045 f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
2046 inode->i_ino, get_dirty_pages(inode));
c27753d6 2047 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
6f8d4455
JK		 2048 if (ret) {
2049 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2050 goto out;
6f8d4455 2051 }
31867b23 2052
743b620c
JK		 2053 spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
2054 if (list_empty(&fi->inmem_ilist))
2055 list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
677017d1 2056 sbi->atomic_files++;
743b620c
JK		 2057 spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
2058
2059 /* add inode in inmem_list first and set atomic_file */
054afda9 2060 set_inode_flag(inode, FI_ATOMIC_FILE);
2ef79ecb 2061 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
6f8d4455 2062 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2063
6f8d4455 2064 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7a10f017 2065 F2FS_I(inode)->inmem_task = current;
26a28a0c 2066 stat_update_max_atomic_write(inode);
684ca7e5 2067out:
0fac558b 2068 inode_unlock(inode);
7fb17fe4 2069 mnt_drop_write_file(filp);
c27753d6 2070 return ret;
88b88a66
JK		 2071}
2072
2073static int f2fs_ioc_commit_atomic_write(struct file *filp)
2074{
2075 struct inode *inode = file_inode(filp);
2076 int ret;
2077
2078 if (!inode_owner_or_capable(inode))
2079 return -EACCES;
2080
2081 ret = mnt_want_write_file(filp);
2082 if (ret)
2083 return ret;
2084
6f8d4455 2085 f2fs_balance_fs(F2FS_I_SB(inode), true);
0fac558b 2086
6f8d4455 2087 inode_lock(inode);
1dc0f899 2088
b169c3c5
CY		 2089 if (f2fs_is_volatile_file(inode)) {
2090 ret = -EINVAL;
7fb17fe4 2091 goto err_out;
b169c3c5 2092 }
7fb17fe4 2093
6282adbf 2094 if (f2fs_is_atomic_file(inode)) {
4d57b86d 2095 ret = f2fs_commit_inmem_pages(inode);
5fe45743 2096 if (ret)
edb27dee 2097 goto err_out;
5fe45743 2098
26a28a0c 2099 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
743b620c
JK		 2100 if (!ret)
2101 f2fs_drop_inmem_pages(inode);
26a28a0c 2102 } else {
774e1b78 2103 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
6282adbf 2104 }
edb27dee 2105err_out:
2ef79ecb
CY		 2106 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
2107 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2108 ret = -EINVAL;
2109 }
0fac558b 2110 inode_unlock(inode);
88b88a66
JK		 2111 mnt_drop_write_file(filp);
2112 return ret;
2113}
2114
02a1335f
JK		 2115static int f2fs_ioc_start_volatile_write(struct file *filp)
2116{
2117 struct inode *inode = file_inode(filp);
f4c9c743 2118 int ret;
02a1335f
JK		 2119
2120 if (!inode_owner_or_capable(inode))
2121 return -EACCES;
2122
8ff0971f
CY		 2123 if (!S_ISREG(inode->i_mode))
2124 return -EINVAL;
2125
7fb17fe4
CY		 2126 ret = mnt_want_write_file(filp);
2127 if (ret)
2128 return ret;
2129
0fac558b
CY		 2130 inode_lock(inode);
2131
1e84371f 2132 if (f2fs_is_volatile_file(inode))
7fb17fe4 2133 goto out;
1e84371f 2134
f4c9c743
CY		 2135 ret = f2fs_convert_inline_inode(inode);
2136 if (ret)
7fb17fe4 2137 goto out;
b3d208f9 2138
648d50ba
CY		 2139 stat_inc_volatile_write(inode);
2140 stat_update_max_volatile_write(inode);
2141
91942321 2142 set_inode_flag(inode, FI_VOLATILE_FILE);
d0239e1b 2143 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2144out:
0fac558b 2145 inode_unlock(inode);
7fb17fe4
CY		 2146 mnt_drop_write_file(filp);
2147 return ret;
02a1335f
JK		 2148}
2149
1e84371f
JK		 2150static int f2fs_ioc_release_volatile_write(struct file *filp)
2151{
2152 struct inode *inode = file_inode(filp);
7fb17fe4 2153 int ret;
1e84371f
JK		 2154
2155 if (!inode_owner_or_capable(inode))
2156 return -EACCES;
2157
7fb17fe4
CY		 2158 ret = mnt_want_write_file(filp);
2159 if (ret)
2160 return ret;
2161
0fac558b
CY		 2162 inode_lock(inode);
2163
1e84371f 2164 if (!f2fs_is_volatile_file(inode))
7fb17fe4 2165 goto out;
1e84371f 2166
7fb17fe4
CY		 2167 if (!f2fs_is_first_block_written(inode)) {
2168 ret = truncate_partial_data_page(inode, 0, true);
2169 goto out;
2170 }
3c6c2beb 2171
7fb17fe4
CY		 2172 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
2173out:
0fac558b 2174 inode_unlock(inode);
7fb17fe4
CY		 2175 mnt_drop_write_file(filp);
2176 return ret;
1e84371f
JK		 2177}
2178
2179static int f2fs_ioc_abort_volatile_write(struct file *filp)
2180{
2181 struct inode *inode = file_inode(filp);
2182 int ret;
2183
2184 if (!inode_owner_or_capable(inode))
2185 return -EACCES;
2186
2187 ret = mnt_want_write_file(filp);
2188 if (ret)
2189 return ret;
2190
0fac558b
CY		 2191 inode_lock(inode);
2192
26dc3d44 2193 if (f2fs_is_atomic_file(inode))
4d57b86d 2194 f2fs_drop_inmem_pages(inode);
732d5648 2195 if (f2fs_is_volatile_file(inode)) {
91942321 2196 clear_inode_flag(inode, FI_VOLATILE_FILE);
648d50ba 2197 stat_dec_volatile_write(inode);
608514de 2198 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
732d5648 2199 }
de6a8ec9 2200
455e3a58
JK		 2201 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2202
0fac558b
CY		 2203 inode_unlock(inode);
2204
1e84371f 2205 mnt_drop_write_file(filp);
d0239e1b 2206 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1e84371f
JK		 2207 return ret;
2208}
2209
1abff93d
JK		 2210static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2211{
2212 struct inode *inode = file_inode(filp);
2213 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2214 struct super_block *sb = sbi->sb;
2215 __u32 in;
2a96d8ad 2216 int ret = 0;
1abff93d
JK		 2217
2218 if (!capable(CAP_SYS_ADMIN))
2219 return -EPERM;
2220
2221 if (get_user(in, (__u32 __user *)arg))
2222 return -EFAULT;
2223
60b2b4ee
ST		 2224 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2225 ret = mnt_want_write_file(filp);
8626441f
CY		 2226 if (ret) {
2227 if (ret == -EROFS) {
2228 ret = 0;
2229 f2fs_stop_checkpoint(sbi, false);
2230 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2231 trace_f2fs_shutdown(sbi, in, ret);
2232 }
60b2b4ee 2233 return ret;
8626441f 2234 }
60b2b4ee 2235 }
7fb17fe4 2236
1abff93d
JK		 2237 switch (in) {
2238 case F2FS_GOING_DOWN_FULLSYNC:
2239 sb = freeze_bdev(sb->s_bdev);
d027c484
CY		 2240 if (IS_ERR(sb)) {
2241 ret = PTR_ERR(sb);
2242 goto out;
2243 }
2244 if (sb) {
38f91ca8 2245 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2246 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d
JK		 2247 thaw_bdev(sb->s_bdev, sb);
2248 }
2249 break;
2250 case F2FS_GOING_DOWN_METASYNC:
2251 /* do checkpoint only */
d027c484
CY		 2252 ret = f2fs_sync_fs(sb, 1);
2253 if (ret)
2254 goto out;
38f91ca8 2255 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2256 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d
JK		 2257 break;
2258 case F2FS_GOING_DOWN_NOSYNC:
38f91ca8 2259 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2260 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d 2261 break;
c912a829 2262 case F2FS_GOING_DOWN_METAFLUSH:
4d57b86d 2263 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
38f91ca8 2264 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2265 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
c912a829 2266 break;
0cd6d9b0
JK		 2267 case F2FS_GOING_DOWN_NEED_FSCK:
2268 set_sbi_flag(sbi, SBI_NEED_FSCK);
db610a64
JK		 2269 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2270 set_sbi_flag(sbi, SBI_IS_DIRTY);
0cd6d9b0
JK		 2271 /* do checkpoint only */
2272 ret = f2fs_sync_fs(sb, 1);
db610a64 2273 goto out;
1abff93d 2274 default:
7fb17fe4
CY		 2275 ret = -EINVAL;
2276 goto out;
1abff93d 2277 }
7950e9ac 2278
4d57b86d
CY		 2279 f2fs_stop_gc_thread(sbi);
2280 f2fs_stop_discard_thread(sbi);
7950e9ac 2281
4d57b86d 2282 f2fs_drop_discard_cmd(sbi);
7950e9ac
CY		 2283 clear_opt(sbi, DISCARD);
2284
d0239e1b 2285 f2fs_update_time(sbi, REQ_TIME);
7fb17fe4 2286out:
60b2b4ee
ST		 2287 if (in != F2FS_GOING_DOWN_FULLSYNC)
2288 mnt_drop_write_file(filp);
559e87c4
CY		 2289
2290 trace_f2fs_shutdown(sbi, in, ret);
2291
7fb17fe4 2292 return ret;
1abff93d
JK		 2293}
2294
52656e6c
JK		 2295static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2296{
2297 struct inode *inode = file_inode(filp);
2298 struct super_block *sb = inode->i_sb;
2299 struct request_queue *q = bdev_get_queue(sb->s_bdev);
2300 struct fstrim_range range;
2301 int ret;
4b2fecc8 2302
52656e6c
JK		 2303 if (!capable(CAP_SYS_ADMIN))
2304 return -EPERM;
4b2fecc8 2305
7d20c8ab 2306 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
52656e6c 2307 return -EOPNOTSUPP;
4b2fecc8 2308
52656e6c
JK		 2309 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2310 sizeof(range)))
2311 return -EFAULT;
4b2fecc8 2312
7fb17fe4
CY		 2313 ret = mnt_want_write_file(filp);
2314 if (ret)
2315 return ret;
2316
52656e6c
JK		 2317 range.minlen = max((unsigned int)range.minlen,
2318 q->limits.discard_granularity);
2319 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
7fb17fe4 2320 mnt_drop_write_file(filp);
52656e6c
JK		 2321 if (ret < 0)
2322 return ret;
4b2fecc8 2323
52656e6c
JK		 2324 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2325 sizeof(range)))
2326 return -EFAULT;
d0239e1b 2327 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
52656e6c
JK		 2328 return 0;
2329}
2330
f424f664
JK		 2331static bool uuid_is_nonzero(__u8 u[16])
2332{
2333 int i;
2334
2335 for (i = 0; i < 16; i++)
2336 if (u[i])
2337 return true;
2338 return false;
2339}
2340
2341static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2342{
f424f664
JK		 2343 struct inode *inode = file_inode(filp);
2344
7beb01f7 2345 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
ead710b7
CY		 2346 return -EOPNOTSUPP;
2347
d0239e1b 2348 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2349
db717d8e 2350 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
f424f664
JK		 2351}
2352
2353static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2354{
7beb01f7 2355 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
ead710b7 2356 return -EOPNOTSUPP;
db717d8e 2357 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
f424f664
JK		 2358}
2359
2360static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2361{
2362 struct inode *inode = file_inode(filp);
2363 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2364 int err;
2365
7beb01f7 2366 if (!f2fs_sb_has_encrypt(sbi))
f424f664
JK		 2367 return -EOPNOTSUPP;
2368
f424f664
JK		 2369 err = mnt_want_write_file(filp);
2370 if (err)
2371 return err;
2372
846ae671 2373 down_write(&sbi->sb_lock);
d0d3f1b3
CY		 2374
2375 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2376 goto got_it;
2377
f424f664
JK		 2378 /* update superblock with uuid */
2379 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2380
c5bda1c8 2381 err = f2fs_commit_super(sbi, false);
f424f664
JK		 2382 if (err) {
2383 /* undo new data */
2384 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
d0d3f1b3 2385 goto out_err;
f424f664
JK		 2386 }
2387got_it:
2388 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2389 16))
d0d3f1b3
CY		 2390 err = -EFAULT;
2391out_err:
846ae671 2392 up_write(&sbi->sb_lock);
d0d3f1b3
CY		 2393 mnt_drop_write_file(filp);
2394 return err;
f424f664
JK		 2395}
2396
8ce589c7
EB		 2397static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
2398 unsigned long arg)
2399{
2400 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2401 return -EOPNOTSUPP;
2402
2403 return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
2404}
2405
2406static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
2407{
2408 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2409 return -EOPNOTSUPP;
2410
2411 return fscrypt_ioctl_add_key(filp, (void __user *)arg);
2412}
2413
2414static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
2415{
2416 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2417 return -EOPNOTSUPP;
2418
2419 return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
2420}
2421
2422static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
2423 unsigned long arg)
2424{
2425 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2426 return -EOPNOTSUPP;
2427
2428 return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
2429}
2430
2431static int f2fs_ioc_get_encryption_key_status(struct file *filp,
2432 unsigned long arg)
2433{
2434 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2435 return -EOPNOTSUPP;
2436
2437 return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
2438}
2439
ee446e1a
EB		 2440static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
2441{
2442 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2443 return -EOPNOTSUPP;
2444
2445 return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
2446}
2447
c1c1b583
CY		 2448static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2449{
2450 struct inode *inode = file_inode(filp);
2451 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d530d4d8 2452 __u32 sync;
7fb17fe4 2453 int ret;
c1c1b583
CY		 2454
2455 if (!capable(CAP_SYS_ADMIN))
2456 return -EPERM;
2457
d530d4d8 2458 if (get_user(sync, (__u32 __user *)arg))
c1c1b583
CY		 2459 return -EFAULT;
2460
d530d4d8
CY		 2461 if (f2fs_readonly(sbi->sb))
2462 return -EROFS;
c1c1b583 2463
7fb17fe4
CY		 2464 ret = mnt_want_write_file(filp);
2465 if (ret)
2466 return ret;
2467
d530d4d8 2468 if (!sync) {
fb24fea7 2469 if (!down_write_trylock(&sbi->gc_lock)) {
7fb17fe4
CY		 2470 ret = -EBUSY;
2471 goto out;
2472 }
d530d4d8 2473 } else {
fb24fea7 2474 down_write(&sbi->gc_lock);
c1c1b583
CY		 2475 }
2476
e066b83c 2477 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
7fb17fe4
CY		 2478out:
2479 mnt_drop_write_file(filp);
2480 return ret;
c1c1b583
CY		 2481}
2482
34178b1b 2483static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
34dc77ad 2484{
34178b1b 2485 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
34dc77ad
JK		 2486 u64 end;
2487 int ret;
2488
2489 if (!capable(CAP_SYS_ADMIN))
2490 return -EPERM;
34dc77ad
JK		 2491 if (f2fs_readonly(sbi->sb))
2492 return -EROFS;
2493
34178b1b
CY		 2494 end = range->start + range->len;
2495 if (end < range->start || range->start < MAIN_BLKADDR(sbi) ||
fbbf7799 2496 end >= MAX_BLKADDR(sbi))
b82f6e34 2497 return -EINVAL;
b82f6e34 2498
34dc77ad
JK		 2499 ret = mnt_want_write_file(filp);
2500 if (ret)
2501 return ret;
2502
34dc77ad 2503do_more:
34178b1b 2504 if (!range->sync) {
fb24fea7 2505 if (!down_write_trylock(&sbi->gc_lock)) {
34dc77ad
JK		 2506 ret = -EBUSY;
2507 goto out;
2508 }
2509 } else {
fb24fea7 2510 down_write(&sbi->gc_lock);
34dc77ad
JK		 2511 }
2512
34178b1b 2513 ret = f2fs_gc(sbi, range->sync, true, GET_SEGNO(sbi, range->start));
97767500
QZ		 2514 if (ret) {
2515 if (ret == -EBUSY)
2516 ret = -EAGAIN;
2517 goto out;
2518 }
34178b1b
CY		 2519 range->start += BLKS_PER_SEC(sbi);
2520 if (range->start <= end)
34dc77ad
JK		 2521 goto do_more;
2522out:
2523 mnt_drop_write_file(filp);
2524 return ret;
2525}
2526
34178b1b
CY		 2527static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2528{
2529 struct f2fs_gc_range range;
2530
2531 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2532 sizeof(range)))
2533 return -EFAULT;
2534 return __f2fs_ioc_gc_range(filp, &range);
2535}
2536
059c0648 2537static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
456b88e4
CY		 2538{
2539 struct inode *inode = file_inode(filp);
2540 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7fb17fe4 2541 int ret;
456b88e4
CY		 2542
2543 if (!capable(CAP_SYS_ADMIN))
2544 return -EPERM;
2545
2546 if (f2fs_readonly(sbi->sb))
2547 return -EROFS;
2548
4354994f 2549 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
dcbb4c10 2550 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
4354994f
DR		 2551 return -EINVAL;
2552 }
2553
7fb17fe4
CY		 2554 ret = mnt_want_write_file(filp);
2555 if (ret)
2556 return ret;
2557
2558 ret = f2fs_sync_fs(sbi->sb, 1);
2559
2560 mnt_drop_write_file(filp);
2561 return ret;
456b88e4
CY		 2562}
2563
d323d005
CY		 2564static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2565 struct file *filp,
2566 struct f2fs_defragment *range)
2567{
2568 struct inode *inode = file_inode(filp);
f3d98e74 2569 struct f2fs_map_blocks map = { .m_next_extent = NULL,
f4f0b677
JZ		 2570 .m_seg_type = NO_CHECK_TYPE ,
2571 .m_may_create = false };
1061fd48 2572 struct extent_info ei = {0, 0, 0};
f3d98e74 2573 pgoff_t pg_start, pg_end, next_pgofs;
3519e3f9 2574 unsigned int blk_per_seg = sbi->blocks_per_seg;
d323d005 2575 unsigned int total = 0, sec_num;
d323d005
CY		 2576 block_t blk_end = 0;
2577 bool fragmented = false;
2578 int err;
2579
2580 /* if in-place-update policy is enabled, don't waste time here */
4d57b86d 2581 if (f2fs_should_update_inplace(inode, NULL))
d323d005
CY		 2582 return -EINVAL;
2583
09cbfeaf
KS		 2584 pg_start = range->start >> PAGE_SHIFT;
2585 pg_end = (range->start + range->len) >> PAGE_SHIFT;
d323d005 2586
2c4db1a6 2587 f2fs_balance_fs(sbi, true);
d323d005 2588
5955102c 2589 inode_lock(inode);
d323d005
CY		 2590
2591 /* writeback all dirty pages in the range */
2592 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
d8fe4f0e 2593 range->start + range->len - 1);
d323d005
CY		 2594 if (err)
2595 goto out;
2596
2597 /*
2598 * lookup mapping info in extent cache, skip defragmenting if physical
2599 * block addresses are continuous.
2600 */
2601 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2602 if (ei.fofs + ei.len >= pg_end)
2603 goto out;
2604 }
2605
2606 map.m_lblk = pg_start;
f3d98e74 2607 map.m_next_pgofs = &next_pgofs;
d323d005
CY		 2608
2609 /*
2610 * lookup mapping info in dnode page cache, skip defragmenting if all
2611 * physical block addresses are continuous even if there are hole(s)
2612 * in logical blocks.
2613 */
2614 while (map.m_lblk < pg_end) {
a1c1e9b7 2615 map.m_len = pg_end - map.m_lblk;
f2220c7f 2616 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2617 if (err)
2618 goto out;
2619
2620 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2621 map.m_lblk = next_pgofs;
d323d005
CY		 2622 continue;
2623 }
2624
25a912e5 2625 if (blk_end && blk_end != map.m_pblk)
d323d005 2626 fragmented = true;
25a912e5
CY		 2627
2628 /* record total count of block that we're going to move */
2629 total += map.m_len;
2630
d323d005
CY		 2631 blk_end = map.m_pblk + map.m_len;
2632
2633 map.m_lblk += map.m_len;
d323d005
CY		 2634 }
2635
d3a1a0e1
CY		 2636 if (!fragmented) {
2637 total = 0;
d323d005 2638 goto out;
d3a1a0e1 2639 }
d323d005 2640
f91108b8 2641 sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
d323d005
CY		 2642
2643 /*
2644 * make sure there are enough free section for LFS allocation, this can
2645 * avoid defragment running in SSR mode when free section are allocated
2646 * intensively
2647 */
7f3037a5 2648 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
d323d005
CY		 2649 err = -EAGAIN;
2650 goto out;
2651 }
2652
25a912e5
CY		 2653 map.m_lblk = pg_start;
2654 map.m_len = pg_end - pg_start;
2655 total = 0;
2656
d323d005
CY		 2657 while (map.m_lblk < pg_end) {
2658 pgoff_t idx;
2659 int cnt = 0;
2660
2661do_map:
a1c1e9b7 2662 map.m_len = pg_end - map.m_lblk;
f2220c7f 2663 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2664 if (err)
2665 goto clear_out;
2666
2667 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2668 map.m_lblk = next_pgofs;
d3a1a0e1 2669 goto check;
d323d005
CY		 2670 }
2671
91942321 2672 set_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2673
2674 idx = map.m_lblk;
2675 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2676 struct page *page;
2677
4d57b86d 2678 page = f2fs_get_lock_data_page(inode, idx, true);
d323d005
CY		 2679 if (IS_ERR(page)) {
2680 err = PTR_ERR(page);
2681 goto clear_out;
2682 }
2683
2684 set_page_dirty(page);
2685 f2fs_put_page(page, 1);
2686
2687 idx++;
2688 cnt++;
2689 total++;
2690 }
2691
2692 map.m_lblk = idx;
d3a1a0e1
CY		 2693check:
2694 if (map.m_lblk < pg_end && cnt < blk_per_seg)
d323d005
CY		 2695 goto do_map;
2696
91942321 2697 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2698
2699 err = filemap_fdatawrite(inode->i_mapping);
2700 if (err)
2701 goto out;
2702 }
2703clear_out:
91942321 2704 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005 2705out:
5955102c 2706 inode_unlock(inode);
d323d005 2707 if (!err)
09cbfeaf 2708 range->len = (u64)total << PAGE_SHIFT;
d323d005
CY		 2709 return err;
2710}
2711
2712static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2713{
2714 struct inode *inode = file_inode(filp);
2715 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2716 struct f2fs_defragment range;
2717 int err;
2718
2719 if (!capable(CAP_SYS_ADMIN))
2720 return -EPERM;
2721
7eab0c0d 2722 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
d323d005
CY		 2723 return -EINVAL;
2724
d7563861
KM		 2725 if (f2fs_readonly(sbi->sb))
2726 return -EROFS;
d323d005
CY		 2727
2728 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
d7563861
KM		 2729 sizeof(range)))
2730 return -EFAULT;
d323d005
CY		 2731
2732 /* verify alignment of offset & size */
d7563861
KM		 2733 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2734 return -EINVAL;
d323d005 2735
1941d7bc 2736 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
d7563861
KM		 2737 sbi->max_file_blocks))
2738 return -EINVAL;
2739
2740 err = mnt_want_write_file(filp);
2741 if (err)
2742 return err;
1941d7bc 2743
d323d005 2744 err = f2fs_defragment_range(sbi, filp, &range);
d7563861
KM		 2745 mnt_drop_write_file(filp);
2746
d0239e1b 2747 f2fs_update_time(sbi, REQ_TIME);
d323d005 2748 if (err < 0)
d7563861 2749 return err;
d323d005
CY		 2750
2751 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2752 sizeof(range)))
d7563861
KM		 2753 return -EFAULT;
2754
2755 return 0;
d323d005
CY		 2756}
2757
4dd6f977
JK		 2758static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2759 struct file *file_out, loff_t pos_out, size_t len)
2760{
2761 struct inode *src = file_inode(file_in);
2762 struct inode *dst = file_inode(file_out);
2763 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2764 size_t olen = len, dst_max_i_size = 0;
2765 size_t dst_osize;
2766 int ret;
2767
2768 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2769 src->i_sb != dst->i_sb)
2770 return -EXDEV;
2771
2772 if (unlikely(f2fs_readonly(src->i_sb)))
2773 return -EROFS;
2774
fe8494bf
CY		 2775 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2776 return -EINVAL;
4dd6f977 2777
62230e0d 2778 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
4dd6f977
JK		 2779 return -EOPNOTSUPP;
2780
aad1383c
DR		 2781 if (pos_out < 0 || pos_in < 0)
2782 return -EINVAL;
2783
d95fd91c
FL		 2784 if (src == dst) {
2785 if (pos_in == pos_out)
2786 return 0;
2787 if (pos_out > pos_in && pos_out < pos_in + len)
2788 return -EINVAL;
2789 }
2790
4dd6f977 2791 inode_lock(src);
20a3d61d 2792 if (src != dst) {
bb06664a
CY		 2793 ret = -EBUSY;
2794 if (!inode_trylock(dst))
2795 goto out;
20a3d61d 2796 }
4dd6f977
JK		 2797
2798 ret = -EINVAL;
2799 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2800 goto out_unlock;
2801 if (len == 0)
2802 olen = len = src->i_size - pos_in;
2803 if (pos_in + len == src->i_size)
2804 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2805 if (len == 0) {
2806 ret = 0;
2807 goto out_unlock;
2808 }
2809
2810 dst_osize = dst->i_size;
2811 if (pos_out + olen > dst->i_size)
2812 dst_max_i_size = pos_out + olen;
2813
2814 /* verify the end result is block aligned */
2815 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2816 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2817 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2818 goto out_unlock;
2819
2820 ret = f2fs_convert_inline_inode(src);
2821 if (ret)
2822 goto out_unlock;
2823
2824 ret = f2fs_convert_inline_inode(dst);
2825 if (ret)
2826 goto out_unlock;
2827
2828 /* write out all dirty pages from offset */
2829 ret = filemap_write_and_wait_range(src->i_mapping,
2830 pos_in, pos_in + len);
2831 if (ret)
2832 goto out_unlock;
2833
2834 ret = filemap_write_and_wait_range(dst->i_mapping,
2835 pos_out, pos_out + len);
2836 if (ret)
2837 goto out_unlock;
2838
2839 f2fs_balance_fs(sbi, true);
6f8d4455
JK		 2840
2841 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2842 if (src != dst) {
2843 ret = -EBUSY;
2844 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2845 goto out_src;
2846 }
2847
4dd6f977 2848 f2fs_lock_op(sbi);
61e4da11
FL		 2849 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2850 pos_out >> F2FS_BLKSIZE_BITS,
2851 len >> F2FS_BLKSIZE_BITS, false);
4dd6f977
JK		 2852
2853 if (!ret) {
2854 if (dst_max_i_size)
2855 f2fs_i_size_write(dst, dst_max_i_size);
2856 else if (dst_osize != dst->i_size)
2857 f2fs_i_size_write(dst, dst_osize);
2858 }
2859 f2fs_unlock_op(sbi);
6f8d4455
JK		 2860
2861 if (src != dst)
b2532c69 2862 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
6f8d4455
JK		 2863out_src:
2864 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2865out_unlock:
2866 if (src != dst)
4dd6f977 2867 inode_unlock(dst);
20a3d61d 2868out:
4dd6f977
JK		 2869 inode_unlock(src);
2870 return ret;
2871}
2872
34178b1b
CY		 2873static int __f2fs_ioc_move_range(struct file *filp,
2874 struct f2fs_move_range *range)
4dd6f977 2875{
4dd6f977
JK		 2876 struct fd dst;
2877 int err;
2878
2879 if (!(filp->f_mode & FMODE_READ) ||
2880 !(filp->f_mode & FMODE_WRITE))
2881 return -EBADF;
2882
34178b1b 2883 dst = fdget(range->dst_fd);
4dd6f977
JK		 2884 if (!dst.file)
2885 return -EBADF;
2886
2887 if (!(dst.file->f_mode & FMODE_WRITE)) {
2888 err = -EBADF;
2889 goto err_out;
2890 }
2891
2892 err = mnt_want_write_file(filp);
2893 if (err)
2894 goto err_out;
2895
34178b1b
CY		 2896 err = f2fs_move_file_range(filp, range->pos_in, dst.file,
2897 range->pos_out, range->len);
4dd6f977
JK		 2898
2899 mnt_drop_write_file(filp);
4dd6f977
JK		 2900err_out:
2901 fdput(dst);
2902 return err;
2903}
2904
34178b1b
CY		 2905static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2906{
2907 struct f2fs_move_range range;
2908
2909 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2910 sizeof(range)))
2911 return -EFAULT;
2912 return __f2fs_ioc_move_range(filp, &range);
2913}
2914
e066b83c
JK		 2915static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2916{
2917 struct inode *inode = file_inode(filp);
2918 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2919 struct sit_info *sm = SIT_I(sbi);
2920 unsigned int start_segno = 0, end_segno = 0;
2921 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2922 struct f2fs_flush_device range;
2923 int ret;
2924
2925 if (!capable(CAP_SYS_ADMIN))
2926 return -EPERM;
2927
2928 if (f2fs_readonly(sbi->sb))
2929 return -EROFS;
2930
4354994f
DR		 2931 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2932 return -EINVAL;
2933
e066b83c
JK		 2934 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2935 sizeof(range)))
2936 return -EFAULT;
2937
0916878d 2938 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2c70c5e3 2939 __is_large_section(sbi)) {
dcbb4c10
JP		 2940 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2941 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
e066b83c
JK		 2942 return -EINVAL;
2943 }
2944
2945 ret = mnt_want_write_file(filp);
2946 if (ret)
2947 return ret;
2948
2949 if (range.dev_num != 0)
2950 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2951 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2952
2953 start_segno = sm->last_victim[FLUSH_DEVICE];
2954 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2955 start_segno = dev_start_segno;
2956 end_segno = min(start_segno + range.segments, dev_end_segno);
2957
2958 while (start_segno < end_segno) {
fb24fea7 2959 if (!down_write_trylock(&sbi->gc_lock)) {
e066b83c
JK		 2960 ret = -EBUSY;
2961 goto out;
2962 }
2963 sm->last_victim[GC_CB] = end_segno + 1;
2964 sm->last_victim[GC_GREEDY] = end_segno + 1;
2965 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2966 ret = f2fs_gc(sbi, true, true, start_segno);
2967 if (ret == -EAGAIN)
2968 ret = 0;
2969 else if (ret < 0)
2970 break;
2971 start_segno++;
2972 }
2973out:
2974 mnt_drop_write_file(filp);
2975 return ret;
2976}
2977
e65ef207
JK		 2978static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2979{
2980 struct inode *inode = file_inode(filp);
2981 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2982
2983 /* Must validate to set it with SQLite behavior in Android. */
2984 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2985
2986 return put_user(sb_feature, (u32 __user *)arg);
2987}
e066b83c 2988
2c1d0305 2989#ifdef CONFIG_QUOTA
78130819
CY		 2990int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2991{
2992 struct dquot *transfer_to[MAXQUOTAS] = {};
2993 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2994 struct super_block *sb = sbi->sb;
2995 int err = 0;
2996
2997 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2998 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2999 err = __dquot_transfer(inode, transfer_to);
3000 if (err)
3001 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
3002 dqput(transfer_to[PRJQUOTA]);
3003 }
3004 return err;
3005}
3006
2c1d0305
CY		 3007static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
3008{
3009 struct inode *inode = file_inode(filp);
3010 struct f2fs_inode_info *fi = F2FS_I(inode);
3011 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2c1d0305
CY		 3012 struct page *ipage;
3013 kprojid_t kprojid;
3014 int err;
3015
7beb01f7 3016 if (!f2fs_sb_has_project_quota(sbi)) {
2c1d0305
CY		 3017 if (projid != F2FS_DEF_PROJID)
3018 return -EOPNOTSUPP;
3019 else
3020 return 0;
3021 }
3022
3023 if (!f2fs_has_extra_attr(inode))
3024 return -EOPNOTSUPP;
3025
3026 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
3027
3028 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
3029 return 0;
3030
2c1d0305 3031 err = -EPERM;
2c1d0305
CY		 3032 /* Is it quota file? Do not allow user to mess with it */
3033 if (IS_NOQUOTA(inode))
c8e92757 3034 return err;
2c1d0305 3035
4d57b86d 3036 ipage = f2fs_get_node_page(sbi, inode->i_ino);
c8e92757
WS		 3037 if (IS_ERR(ipage))
3038 return PTR_ERR(ipage);
2c1d0305
CY		 3039
3040 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
3041 i_projid)) {
3042 err = -EOVERFLOW;
3043 f2fs_put_page(ipage, 1);
c8e92757 3044 return err;
2c1d0305
CY		 3045 }
3046 f2fs_put_page(ipage, 1);
3047
c22aecd7
CY		 3048 err = dquot_initialize(inode);
3049 if (err)
c8e92757 3050 return err;
2c1d0305 3051
78130819
CY		 3052 f2fs_lock_op(sbi);
3053 err = f2fs_transfer_project_quota(inode, kprojid);
3054 if (err)
3055 goto out_unlock;
2c1d0305
CY		 3056
3057 F2FS_I(inode)->i_projid = kprojid;
3058 inode->i_ctime = current_time(inode);
2c1d0305 3059 f2fs_mark_inode_dirty_sync(inode, true);
78130819
CY		 3060out_unlock:
3061 f2fs_unlock_op(sbi);
2c1d0305
CY		 3062 return err;
3063}
3064#else
78130819
CY		 3065int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
3066{
3067 return 0;
3068}
3069
2c1d0305
CY		 3070static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
3071{
3072 if (projid != F2FS_DEF_PROJID)
3073 return -EOPNOTSUPP;
3074 return 0;
3075}
3076#endif
3077
36098557
EB		 3078/* FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR support */
3079
3080/*
3081 * To make a new on-disk f2fs i_flag gettable via FS_IOC_FSGETXATTR and settable
3082 * via FS_IOC_FSSETXATTR, add an entry for it to f2fs_xflags_map[], and add its
3083 * FS_XFLAG_* equivalent to F2FS_SUPPORTED_XFLAGS.
3084 */
3085
3086static const struct {
3087 u32 iflag;
3088 u32 xflag;
3089} f2fs_xflags_map[] = {
3090 { F2FS_SYNC_FL, FS_XFLAG_SYNC },
3091 { F2FS_IMMUTABLE_FL, FS_XFLAG_IMMUTABLE },
3092 { F2FS_APPEND_FL, FS_XFLAG_APPEND },
3093 { F2FS_NODUMP_FL, FS_XFLAG_NODUMP },
3094 { F2FS_NOATIME_FL, FS_XFLAG_NOATIME },
3095 { F2FS_PROJINHERIT_FL, FS_XFLAG_PROJINHERIT },
3096};
3097
3098#define F2FS_SUPPORTED_XFLAGS ( \
3099 FS_XFLAG_SYNC | \
3100 FS_XFLAG_IMMUTABLE | \
3101 FS_XFLAG_APPEND | \
3102 FS_XFLAG_NODUMP | \
3103 FS_XFLAG_NOATIME | \
3104 FS_XFLAG_PROJINHERIT)
3105
3106/* Convert f2fs on-disk i_flags to FS_IOC_FS{GET,SET}XATTR flags */
3107static inline u32 f2fs_iflags_to_xflags(u32 iflags)
3108{
3109 u32 xflags = 0;
3110 int i;
3111
3112 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3113 if (iflags & f2fs_xflags_map[i].iflag)
3114 xflags |= f2fs_xflags_map[i].xflag;
3115
2c1d0305
CY		 3116 return xflags;
3117}
3118
36098557
EB		 3119/* Convert FS_IOC_FS{GET,SET}XATTR flags to f2fs on-disk i_flags */
3120static inline u32 f2fs_xflags_to_iflags(u32 xflags)
2c1d0305 3121{
36098557
EB		 3122 u32 iflags = 0;
3123 int i;
2c1d0305 3124
36098557
EB		 3125 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3126 if (xflags & f2fs_xflags_map[i].xflag)
3127 iflags |= f2fs_xflags_map[i].iflag;
2c1d0305
CY		 3128
3129 return iflags;
3130}
3131
6fc93c4e 3132static void f2fs_fill_fsxattr(struct inode *inode, struct fsxattr *fa)
2c1d0305 3133{
2c1d0305 3134 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d0305 3135
6fc93c4e 3136 simple_fill_fsxattr(fa, f2fs_iflags_to_xflags(fi->i_flags));
2c1d0305 3137
7beb01f7 3138 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
6fc93c4e 3139 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
2c1d0305
CY		 3140}
3141
6fc93c4e 3142static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
c8e92757 3143{
6fc93c4e
EB		 3144 struct inode *inode = file_inode(filp);
3145 struct fsxattr fa;
c8e92757 3146
6fc93c4e 3147 f2fs_fill_fsxattr(inode, &fa);
c8e92757 3148
6fc93c4e
EB		 3149 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
3150 return -EFAULT;
c8e92757
WS		 3151 return 0;
3152}
3153
2c1d0305
CY		 3154static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
3155{
3156 struct inode *inode = file_inode(filp);
6fc93c4e 3157 struct fsxattr fa, old_fa;
36098557 3158 u32 iflags;
2c1d0305
CY		 3159 int err;
3160
3161 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
3162 return -EFAULT;
3163
3164 /* Make sure caller has proper permission */
3165 if (!inode_owner_or_capable(inode))
3166 return -EACCES;
3167
36098557 3168 if (fa.fsx_xflags & ~F2FS_SUPPORTED_XFLAGS)
2c1d0305
CY		 3169 return -EOPNOTSUPP;
3170
36098557
EB		 3171 iflags = f2fs_xflags_to_iflags(fa.fsx_xflags);
3172 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
2c1d0305
CY		 3173 return -EOPNOTSUPP;
3174
3175 err = mnt_want_write_file(filp);
3176 if (err)
3177 return err;
3178
3179 inode_lock(inode);
6fc93c4e
EB		 3180
3181 f2fs_fill_fsxattr(inode, &old_fa);
3182 err = vfs_ioc_fssetxattr_check(inode, &old_fa, &fa);
c8e92757
WS		 3183 if (err)
3184 goto out;
6fc93c4e 3185
36098557
EB		 3186 err = f2fs_setflags_common(inode, iflags,
3187 f2fs_xflags_to_iflags(F2FS_SUPPORTED_XFLAGS));
2c1d0305 3188 if (err)
c8e92757 3189 goto out;
2c1d0305
CY		 3190
3191 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
c8e92757
WS		 3192out:
3193 inode_unlock(inode);
3194 mnt_drop_write_file(filp);
3195 return err;
2c1d0305 3196}
e066b83c 3197
1ad71a27
JK		 3198int f2fs_pin_file_control(struct inode *inode, bool inc)
3199{
3200 struct f2fs_inode_info *fi = F2FS_I(inode);
3201 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3202
3203 /* Use i_gc_failures for normal file as a risk signal. */
3204 if (inc)
2ef79ecb
CY		 3205 f2fs_i_gc_failures_write(inode,
3206 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
1ad71a27 3207
2ef79ecb 3208 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
dcbb4c10
JP		 3209 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
3210 __func__, inode->i_ino,
3211 fi->i_gc_failures[GC_FAILURE_PIN]);
1ad71a27
JK		 3212 clear_inode_flag(inode, FI_PIN_FILE);
3213 return -EAGAIN;
3214 }
3215 return 0;
3216}
3217
3218static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
3219{
3220 struct inode *inode = file_inode(filp);
3221 __u32 pin;
3222 int ret = 0;
3223
1ad71a27
JK		 3224 if (get_user(pin, (__u32 __user *)arg))
3225 return -EFAULT;
3226
3227 if (!S_ISREG(inode->i_mode))
3228 return -EINVAL;
3229
3230 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
3231 return -EROFS;
3232
3233 ret = mnt_want_write_file(filp);
3234 if (ret)
3235 return ret;
3236
3237 inode_lock(inode);
3238
4d57b86d 3239 if (f2fs_should_update_outplace(inode, NULL)) {
bb9e3bb8
CY		 3240 ret = -EINVAL;
3241 goto out;
3242 }
3243
1ad71a27
JK		 3244 if (!pin) {
3245 clear_inode_flag(inode, FI_PIN_FILE);
30933364 3246 f2fs_i_gc_failures_write(inode, 0);
1ad71a27
JK		 3247 goto done;
3248 }
3249
3250 if (f2fs_pin_file_control(inode, false)) {
3251 ret = -EAGAIN;
3252 goto out;
3253 }
4c8ff709 3254
1ad71a27
JK		 3255 ret = f2fs_convert_inline_inode(inode);
3256 if (ret)
3257 goto out;
3258
78134d03 3259 if (!f2fs_disable_compressed_file(inode)) {
4c8ff709
CY		 3260 ret = -EOPNOTSUPP;
3261 goto out;
3262 }
3263
1ad71a27 3264 set_inode_flag(inode, FI_PIN_FILE);
2ef79ecb 3265 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3266done:
3267 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3268out:
3269 inode_unlock(inode);
3270 mnt_drop_write_file(filp);
3271 return ret;
3272}
3273
3274static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3275{
3276 struct inode *inode = file_inode(filp);
3277 __u32 pin = 0;
3278
3279 if (is_inode_flag_set(inode, FI_PIN_FILE))
2ef79ecb 3280 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3281 return put_user(pin, (u32 __user *)arg);
3282}
3283
c4020b2d
CY		 3284int f2fs_precache_extents(struct inode *inode)
3285{
3286 struct f2fs_inode_info *fi = F2FS_I(inode);
3287 struct f2fs_map_blocks map;
3288 pgoff_t m_next_extent;
3289 loff_t end;
3290 int err;
3291
3292 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3293 return -EOPNOTSUPP;
3294
3295 map.m_lblk = 0;
3296 map.m_next_pgofs = NULL;
3297 map.m_next_extent = &m_next_extent;
3298 map.m_seg_type = NO_CHECK_TYPE;
f4f0b677 3299 map.m_may_create = false;
c4020b2d
CY		 3300 end = F2FS_I_SB(inode)->max_file_blocks;
3301
3302 while (map.m_lblk < end) {
3303 map.m_len = end - map.m_lblk;
3304
b2532c69 3305 down_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d 3306 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
b2532c69 3307 up_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d
CY		 3308 if (err)
3309 return err;
3310
3311 map.m_lblk = m_next_extent;
3312 }
3313
3314 return err;
3315}
3316
3317static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3318{
3319 return f2fs_precache_extents(file_inode(filp));
3320}
3321
04f0b2ea
QS		 3322static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3323{
3324 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3325 __u64 block_count;
04f0b2ea
QS		 3326
3327 if (!capable(CAP_SYS_ADMIN))
3328 return -EPERM;
3329
3330 if (f2fs_readonly(sbi->sb))
3331 return -EROFS;
3332
3333 if (copy_from_user(&block_count, (void __user *)arg,
3334 sizeof(block_count)))
3335 return -EFAULT;
3336
b4b10061 3337 return f2fs_resize_fs(sbi, block_count);
04f0b2ea
QS		 3338}
3339
95ae251f
EB		 3340static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
3341{
3342 struct inode *inode = file_inode(filp);
3343
3344 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3345
3346 if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
3347 f2fs_warn(F2FS_I_SB(inode),
3348 "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem.\n",
3349 inode->i_ino);
3350 return -EOPNOTSUPP;
3351 }
3352
3353 return fsverity_ioctl_enable(filp, (const void __user *)arg);
3354}
3355
3356static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
3357{
3358 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3359 return -EOPNOTSUPP;
3360
3361 return fsverity_ioctl_measure(filp, (void __user *)arg);
3362}
3363
3357af8f 3364static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3365{
3366 struct inode *inode = file_inode(filp);
3367 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3368 char *vbuf;
3369 int count;
3370 int err = 0;
3371
3372 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3373 if (!vbuf)
3374 return -ENOMEM;
3375
3376 down_read(&sbi->sb_lock);
3377 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3378 ARRAY_SIZE(sbi->raw_super->volume_name),
3379 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3380 up_read(&sbi->sb_lock);
3381
3382 if (copy_to_user((char __user *)arg, vbuf,
3383 min(FSLABEL_MAX, count)))
3384 err = -EFAULT;
3385
c8eb7024 3386 kfree(vbuf);
4507847c
CY		 3387 return err;
3388}
3389
3357af8f 3390static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3391{
3392 struct inode *inode = file_inode(filp);
3393 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3394 char *vbuf;
3395 int err = 0;
3396
3397 if (!capable(CAP_SYS_ADMIN))
3398 return -EPERM;
3399
3400 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3401 if (IS_ERR(vbuf))
3402 return PTR_ERR(vbuf);
3403
3404 err = mnt_want_write_file(filp);
3405 if (err)
3406 goto out;
3407
3408 down_write(&sbi->sb_lock);
3409
3410 memset(sbi->raw_super->volume_name, 0,
3411 sizeof(sbi->raw_super->volume_name));
3412 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3413 sbi->raw_super->volume_name,
3414 ARRAY_SIZE(sbi->raw_super->volume_name));
3415
3416 err = f2fs_commit_super(sbi, false);
3417
3418 up_write(&sbi->sb_lock);
3419
3420 mnt_drop_write_file(filp);
3421out:
3422 kfree(vbuf);
3423 return err;
3424}
3425
439dfb10
CY		 3426static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
3427{
3428 struct inode *inode = file_inode(filp);
3429 __u64 blocks;
3430
3431 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3432 return -EOPNOTSUPP;
3433
3434 if (!f2fs_compressed_file(inode))
3435 return -EINVAL;
3436
c2759eba 3437 blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks);
439dfb10
CY		 3438 return put_user(blocks, (u64 __user *)arg);
3439}
3440
ef8d563f
CY		 3441static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3442{
3443 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3444 unsigned int released_blocks = 0;
3445 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3446 block_t blkaddr;
3447 int i;
3448
3449 for (i = 0; i < count; i++) {
3450 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3451 dn->ofs_in_node + i);
3452
3453 if (!__is_valid_data_blkaddr(blkaddr))
3454 continue;
3455 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3456 DATA_GENERIC_ENHANCE)))
3457 return -EFSCORRUPTED;
3458 }
3459
3460 while (count) {
3461 int compr_blocks = 0;
3462
3463 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3464 blkaddr = f2fs_data_blkaddr(dn);
3465
3466 if (i == 0) {
3467 if (blkaddr == COMPRESS_ADDR)
3468 continue;
3469 dn->ofs_in_node += cluster_size;
3470 goto next;
3471 }
3472
3473 if (__is_valid_data_blkaddr(blkaddr))
3474 compr_blocks++;
3475
3476 if (blkaddr != NEW_ADDR)
3477 continue;
3478
3479 dn->data_blkaddr = NULL_ADDR;
3480 f2fs_set_data_blkaddr(dn);
3481 }
3482
3483 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
3484 dec_valid_block_count(sbi, dn->inode,
3485 cluster_size - compr_blocks);
3486
3487 released_blocks += cluster_size - compr_blocks;
3488next:
3489 count -= cluster_size;
3490 }
3491
3492 return released_blocks;
3493}
3494
3495static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
3496{
3497 struct inode *inode = file_inode(filp);
3498 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3499 pgoff_t page_idx = 0, last_idx;
3500 unsigned int released_blocks = 0;
3501 int ret;
3502 int writecount;
3503
3504 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3505 return -EOPNOTSUPP;
3506
3507 if (!f2fs_compressed_file(inode))
3508 return -EINVAL;
3509
3510 if (f2fs_readonly(sbi->sb))
3511 return -EROFS;
3512
3513 ret = mnt_want_write_file(filp);
3514 if (ret)
3515 return ret;
3516
3517 f2fs_balance_fs(F2FS_I_SB(inode), true);
3518
3519 inode_lock(inode);
3520
3521 writecount = atomic_read(&inode->i_writecount);
8c8cf26a
DJ		 3522 if ((filp->f_mode & FMODE_WRITE && writecount != 1) ||
3523 (!(filp->f_mode & FMODE_WRITE) && writecount)) {
ef8d563f
CY		 3524 ret = -EBUSY;
3525 goto out;
3526 }
3527
3528 if (IS_IMMUTABLE(inode)) {
3529 ret = -EINVAL;
3530 goto out;
3531 }
3532
3533 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
3534 if (ret)
3535 goto out;
3536
ef8d563f
CY		 3537 F2FS_I(inode)->i_flags |= F2FS_IMMUTABLE_FL;
3538 f2fs_set_inode_flags(inode);
3539 inode->i_ctime = current_time(inode);
3540 f2fs_mark_inode_dirty_sync(inode, true);
3541
c2759eba 3542 if (!atomic_read(&F2FS_I(inode)->i_compr_blocks))
567c4bf5
DJ		 3543 goto out;
3544
ef8d563f
CY		 3545 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3546 down_write(&F2FS_I(inode)->i_mmap_sem);
3547
3548 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3549
3550 while (page_idx < last_idx) {
3551 struct dnode_of_data dn;
3552 pgoff_t end_offset, count;
3553
3554 set_new_dnode(&dn, inode, NULL, NULL, 0);
3555 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3556 if (ret) {
3557 if (ret == -ENOENT) {
3558 page_idx = f2fs_get_next_page_offset(&dn,
3559 page_idx);
3560 ret = 0;
3561 continue;
3562 }
3563 break;
3564 }
3565
3566 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3567 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3568 count = round_up(count, F2FS_I(inode)->i_cluster_size);
ef8d563f
CY		 3569
3570 ret = release_compress_blocks(&dn, count);
3571
3572 f2fs_put_dnode(&dn);
3573
3574 if (ret < 0)
3575 break;
3576
3577 page_idx += count;
3578 released_blocks += ret;
3579 }
3580
3581 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3582 up_write(&F2FS_I(inode)->i_mmap_sem);
3583out:
3584 inode_unlock(inode);
3585
3586 mnt_drop_write_file(filp);
3587
3588 if (ret >= 0) {
3589 ret = put_user(released_blocks, (u64 __user *)arg);
c2759eba
DJ		 3590 } else if (released_blocks &&
3591 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
ef8d563f
CY		 3592 set_sbi_flag(sbi, SBI_NEED_FSCK);
3593 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
c2759eba 3594 "iblocks=%llu, released=%u, compr_blocks=%u, "
ef8d563f
CY		 3595 "run fsck to fix.",
3596 __func__, inode->i_ino, inode->i_blocks,
3597 released_blocks,
c2759eba 3598 atomic_read(&F2FS_I(inode)->i_compr_blocks));
ef8d563f
CY		 3599 }
3600
3601 return ret;
3602}
3603
c75488fb
CY		 3604static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3605{
3606 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3607 unsigned int reserved_blocks = 0;
3608 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3609 block_t blkaddr;
3610 int i;
3611
3612 for (i = 0; i < count; i++) {
3613 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3614 dn->ofs_in_node + i);
3615
3616 if (!__is_valid_data_blkaddr(blkaddr))
3617 continue;
3618 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3619 DATA_GENERIC_ENHANCE)))
3620 return -EFSCORRUPTED;
3621 }
3622
3623 while (count) {
3624 int compr_blocks = 0;
3625 blkcnt_t reserved;
3626 int ret;
3627
3628 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3629 blkaddr = f2fs_data_blkaddr(dn);
3630
3631 if (i == 0) {
3632 if (blkaddr == COMPRESS_ADDR)
3633 continue;
3634 dn->ofs_in_node += cluster_size;
3635 goto next;
3636 }
3637
3638 if (__is_valid_data_blkaddr(blkaddr)) {
3639 compr_blocks++;
3640 continue;
3641 }
3642
3643 dn->data_blkaddr = NEW_ADDR;
3644 f2fs_set_data_blkaddr(dn);
3645 }
3646
3647 reserved = cluster_size - compr_blocks;
3648 ret = inc_valid_block_count(sbi, dn->inode, &reserved);
3649 if (ret)
3650 return ret;
3651
3652 if (reserved != cluster_size - compr_blocks)
3653 return -ENOSPC;
3654
3655 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
3656
3657 reserved_blocks += reserved;
3658next:
3659 count -= cluster_size;
3660 }
3661
3662 return reserved_blocks;
3663}
3664
3665static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
3666{
3667 struct inode *inode = file_inode(filp);
3668 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3669 pgoff_t page_idx = 0, last_idx;
3670 unsigned int reserved_blocks = 0;
3671 int ret;
3672
3673 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3674 return -EOPNOTSUPP;
3675
3676 if (!f2fs_compressed_file(inode))
3677 return -EINVAL;
3678
3679 if (f2fs_readonly(sbi->sb))
3680 return -EROFS;
3681
3682 ret = mnt_want_write_file(filp);
3683 if (ret)
3684 return ret;
3685
c2759eba 3686 if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
c75488fb
CY		 3687 goto out;
3688
3689 f2fs_balance_fs(F2FS_I_SB(inode), true);
3690
3691 inode_lock(inode);
3692
3693 if (!IS_IMMUTABLE(inode)) {
3694 ret = -EINVAL;
3695 goto unlock_inode;
3696 }
3697
3698 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3699 down_write(&F2FS_I(inode)->i_mmap_sem);
3700
3701 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3702
3703 while (page_idx < last_idx) {
3704 struct dnode_of_data dn;
3705 pgoff_t end_offset, count;
3706
3707 set_new_dnode(&dn, inode, NULL, NULL, 0);
3708 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3709 if (ret) {
3710 if (ret == -ENOENT) {
3711 page_idx = f2fs_get_next_page_offset(&dn,
3712 page_idx);
3713 ret = 0;
3714 continue;
3715 }
3716 break;
3717 }
3718
3719 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3720 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3721 count = round_up(count, F2FS_I(inode)->i_cluster_size);
c75488fb
CY		 3722
3723 ret = reserve_compress_blocks(&dn, count);
3724
3725 f2fs_put_dnode(&dn);
3726
3727 if (ret < 0)
3728 break;
3729
3730 page_idx += count;
3731 reserved_blocks += ret;
3732 }
3733
3734 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3735 up_write(&F2FS_I(inode)->i_mmap_sem);
3736
3737 if (ret >= 0) {
3738 F2FS_I(inode)->i_flags &= ~F2FS_IMMUTABLE_FL;
3739 f2fs_set_inode_flags(inode);
3740 inode->i_ctime = current_time(inode);
3741 f2fs_mark_inode_dirty_sync(inode, true);
3742 }
3743unlock_inode:
3744 inode_unlock(inode);
3745out:
3746 mnt_drop_write_file(filp);
3747
3748 if (ret >= 0) {
3749 ret = put_user(reserved_blocks, (u64 __user *)arg);
c2759eba
DJ		 3750 } else if (reserved_blocks &&
3751 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
c75488fb
CY		 3752 set_sbi_flag(sbi, SBI_NEED_FSCK);
3753 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
c2759eba 3754 "iblocks=%llu, reserved=%u, compr_blocks=%u, "
c75488fb
CY		 3755 "run fsck to fix.",
3756 __func__, inode->i_ino, inode->i_blocks,
3757 reserved_blocks,
c2759eba 3758 atomic_read(&F2FS_I(inode)->i_compr_blocks));
c75488fb
CY		 3759 }
3760
3761 return ret;
3762}
3763
9af84648
DJ		 3764static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
3765 pgoff_t off, block_t block, block_t len, u32 flags)
3766{
3767 struct request_queue *q = bdev_get_queue(bdev);
3768 sector_t sector = SECTOR_FROM_BLOCK(block);
3769 sector_t nr_sects = SECTOR_FROM_BLOCK(len);
3770 int ret = 0;
3771
3772 if (!q)
3773 return -ENXIO;
3774
3775 if (flags & F2FS_TRIM_FILE_DISCARD)
3776 ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
3777 blk_queue_secure_erase(q) ?
3778 BLKDEV_DISCARD_SECURE : 0);
3779
3780 if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
3781 if (IS_ENCRYPTED(inode))
3782 ret = fscrypt_zeroout_range(inode, off, block, len);
3783 else
3784 ret = blkdev_issue_zeroout(bdev, sector, nr_sects,
3785 GFP_NOFS, 0);
3786 }
3787
3788 return ret;
3789}
3790
3791static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
3792{
3793 struct inode *inode = file_inode(filp);
3794 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3795 struct address_space *mapping = inode->i_mapping;
3796 struct block_device *prev_bdev = NULL;
3797 struct f2fs_sectrim_range range;
3798 pgoff_t index, pg_end, prev_index = 0;
3799 block_t prev_block = 0, len = 0;
3800 loff_t end_addr;
3801 bool to_end = false;
3802 int ret = 0;
3803
3804 if (!(filp->f_mode & FMODE_WRITE))
3805 return -EBADF;
3806
3807 if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
3808 sizeof(range)))
3809 return -EFAULT;
3810
3811 if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
3812 !S_ISREG(inode->i_mode))
3813 return -EINVAL;
3814
3815 if (((range.flags & F2FS_TRIM_FILE_DISCARD) &&
3816 !f2fs_hw_support_discard(sbi)) ||
3817 ((range.flags & F2FS_TRIM_FILE_ZEROOUT) &&
3818 IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi)))
3819 return -EOPNOTSUPP;
3820
3821 file_start_write(filp);
3822 inode_lock(inode);
3823
3824 if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
3825 range.start >= inode->i_size) {
3826 ret = -EINVAL;
3827 goto err;
3828 }
3829
3830 if (range.len == 0)
3831 goto err;
3832
3833 if (inode->i_size - range.start > range.len) {
3834 end_addr = range.start + range.len;
3835 } else {
3836 end_addr = range.len == (u64)-1 ?
3837 sbi->sb->s_maxbytes : inode->i_size;
3838 to_end = true;
3839 }
3840
3841 if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
3842 (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
3843 ret = -EINVAL;
3844 goto err;
3845 }
3846
3847 index = F2FS_BYTES_TO_BLK(range.start);
3848 pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
3849
3850 ret = f2fs_convert_inline_inode(inode);
3851 if (ret)
3852 goto err;
3853
3854 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3855 down_write(&F2FS_I(inode)->i_mmap_sem);
3856
3857 ret = filemap_write_and_wait_range(mapping, range.start,
3858 to_end ? LLONG_MAX : end_addr - 1);
3859 if (ret)
3860 goto out;
3861
3862 truncate_inode_pages_range(mapping, range.start,
3863 to_end ? -1 : end_addr - 1);
3864
3865 while (index < pg_end) {
3866 struct dnode_of_data dn;
3867 pgoff_t end_offset, count;
3868 int i;
3869
3870 set_new_dnode(&dn, inode, NULL, NULL, 0);
3871 ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
3872 if (ret) {
3873 if (ret == -ENOENT) {
3874 index = f2fs_get_next_page_offset(&dn, index);
3875 continue;
3876 }
3877 goto out;
3878 }
3879
3880 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3881 count = min(end_offset - dn.ofs_in_node, pg_end - index);
3882 for (i = 0; i < count; i++, index++, dn.ofs_in_node++) {
3883 struct block_device *cur_bdev;
3884 block_t blkaddr = f2fs_data_blkaddr(&dn);
3885
3886 if (!__is_valid_data_blkaddr(blkaddr))
3887 continue;
3888
3889 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
3890 DATA_GENERIC_ENHANCE)) {
3891 ret = -EFSCORRUPTED;
3892 f2fs_put_dnode(&dn);
3893 goto out;
3894 }
3895
3896 cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
3897 if (f2fs_is_multi_device(sbi)) {
3898 int di = f2fs_target_device_index(sbi, blkaddr);
3899
3900 blkaddr -= FDEV(di).start_blk;
3901 }
3902
3903 if (len) {
3904 if (prev_bdev == cur_bdev &&
3905 index == prev_index + len &&
3906 blkaddr == prev_block + len) {
3907 len++;
3908 } else {
3909 ret = f2fs_secure_erase(prev_bdev,
3910 inode, prev_index, prev_block,
3911 len, range.flags);
3912 if (ret) {
3913 f2fs_put_dnode(&dn);
3914 goto out;
3915 }
3916
3917 len = 0;
3918 }
3919 }
3920
3921 if (!len) {
3922 prev_bdev = cur_bdev;
3923 prev_index = index;
3924 prev_block = blkaddr;
3925 len = 1;
3926 }
3927 }
3928
3929 f2fs_put_dnode(&dn);
3930
3931 if (fatal_signal_pending(current)) {
3932 ret = -EINTR;
3933 goto out;
3934 }
3935 cond_resched();
3936 }
3937
3938 if (len)
3939 ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
3940 prev_block, len, range.flags);
3941out:
3942 up_write(&F2FS_I(inode)->i_mmap_sem);
3943 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3944err:
3945 inode_unlock(inode);
3946 file_end_write(filp);
3947
3948 return ret;
3949}
3950
9e2a5f8c
DJ		 3951static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg)
3952{
3953 struct inode *inode = file_inode(filp);
3954 struct f2fs_comp_option option;
3955
3956 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3957 return -EOPNOTSUPP;
3958
3959 inode_lock_shared(inode);
3960
3961 if (!f2fs_compressed_file(inode)) {
3962 inode_unlock_shared(inode);
3963 return -ENODATA;
3964 }
3965
3966 option.algorithm = F2FS_I(inode)->i_compress_algorithm;
3967 option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
3968
3969 inode_unlock_shared(inode);
3970
3971 if (copy_to_user((struct f2fs_comp_option __user *)arg, &option,
3972 sizeof(option)))
3973 return -EFAULT;
3974
3975 return 0;
3976}
3977
e1e8debe
DJ		 3978static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg)
3979{
3980 struct inode *inode = file_inode(filp);
3981 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3982 struct f2fs_comp_option option;
3983 int ret = 0;
3984
3985 if (!f2fs_sb_has_compression(sbi))
3986 return -EOPNOTSUPP;
3987
3988 if (!(filp->f_mode & FMODE_WRITE))
3989 return -EBADF;
3990
3991 if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg,
3992 sizeof(option)))
3993 return -EFAULT;
3994
3995 if (!f2fs_compressed_file(inode) ||
3996 option.log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
3997 option.log_cluster_size > MAX_COMPRESS_LOG_SIZE ||
3998 option.algorithm >= COMPRESS_MAX)
3999 return -EINVAL;
4000
4001 file_start_write(filp);
4002 inode_lock(inode);
4003
4004 if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) {
4005 ret = -EBUSY;
4006 goto out;
4007 }
4008
4009 if (inode->i_size != 0) {
4010 ret = -EFBIG;
4011 goto out;
4012 }
4013
4014 F2FS_I(inode)->i_compress_algorithm = option.algorithm;
4015 F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size;
4016 F2FS_I(inode)->i_cluster_size = 1 << option.log_cluster_size;
4017 f2fs_mark_inode_dirty_sync(inode, true);
4018
4019 if (!f2fs_is_compress_backend_ready(inode))
4020 f2fs_warn(sbi, "compression algorithm is successfully set, "
4021 "but current kernel doesn't support this algorithm.");
4022out:
4023 inode_unlock(inode);
4024 file_end_write(filp);
4025
4026 return ret;
4027}
4028
34178b1b 4029static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
52656e6c
JK		 4030{
4031 switch (cmd) {
3357af8f 4032 case FS_IOC_GETFLAGS:
52656e6c 4033 return f2fs_ioc_getflags(filp, arg);
3357af8f 4034 case FS_IOC_SETFLAGS:
52656e6c 4035 return f2fs_ioc_setflags(filp, arg);
3357af8f 4036 case FS_IOC_GETVERSION:
d49f3e89 4037 return f2fs_ioc_getversion(filp, arg);
88b88a66
JK		 4038 case F2FS_IOC_START_ATOMIC_WRITE:
4039 return f2fs_ioc_start_atomic_write(filp);
4040 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4041 return f2fs_ioc_commit_atomic_write(filp);
02a1335f
JK		 4042 case F2FS_IOC_START_VOLATILE_WRITE:
4043 return f2fs_ioc_start_volatile_write(filp);
1e84371f
JK		 4044 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4045 return f2fs_ioc_release_volatile_write(filp);
4046 case F2FS_IOC_ABORT_VOLATILE_WRITE:
4047 return f2fs_ioc_abort_volatile_write(filp);
1abff93d
JK		 4048 case F2FS_IOC_SHUTDOWN:
4049 return f2fs_ioc_shutdown(filp, arg);
52656e6c
JK		 4050 case FITRIM:
4051 return f2fs_ioc_fitrim(filp, arg);
3357af8f 4052 case FS_IOC_SET_ENCRYPTION_POLICY:
f424f664 4053 return f2fs_ioc_set_encryption_policy(filp, arg);
3357af8f 4054 case FS_IOC_GET_ENCRYPTION_POLICY:
f424f664 4055 return f2fs_ioc_get_encryption_policy(filp, arg);
3357af8f 4056 case FS_IOC_GET_ENCRYPTION_PWSALT:
f424f664 4057 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
8ce589c7
EB		 4058 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4059 return f2fs_ioc_get_encryption_policy_ex(filp, arg);
4060 case FS_IOC_ADD_ENCRYPTION_KEY:
4061 return f2fs_ioc_add_encryption_key(filp, arg);
4062 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4063 return f2fs_ioc_remove_encryption_key(filp, arg);
4064 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4065 return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
4066 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
4067 return f2fs_ioc_get_encryption_key_status(filp, arg);
ee446e1a
EB		 4068 case FS_IOC_GET_ENCRYPTION_NONCE:
4069 return f2fs_ioc_get_encryption_nonce(filp, arg);
c1c1b583
CY		 4070 case F2FS_IOC_GARBAGE_COLLECT:
4071 return f2fs_ioc_gc(filp, arg);
34dc77ad
JK		 4072 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
4073 return f2fs_ioc_gc_range(filp, arg);
456b88e4 4074 case F2FS_IOC_WRITE_CHECKPOINT:
059c0648 4075 return f2fs_ioc_write_checkpoint(filp, arg);
d323d005
CY		 4076 case F2FS_IOC_DEFRAGMENT:
4077 return f2fs_ioc_defragment(filp, arg);
4dd6f977
JK		 4078 case F2FS_IOC_MOVE_RANGE:
4079 return f2fs_ioc_move_range(filp, arg);
e066b83c
JK		 4080 case F2FS_IOC_FLUSH_DEVICE:
4081 return f2fs_ioc_flush_device(filp, arg);
e65ef207
JK		 4082 case F2FS_IOC_GET_FEATURES:
4083 return f2fs_ioc_get_features(filp, arg);
3357af8f 4084 case FS_IOC_FSGETXATTR:
2c1d0305 4085 return f2fs_ioc_fsgetxattr(filp, arg);
3357af8f 4086 case FS_IOC_FSSETXATTR:
2c1d0305 4087 return f2fs_ioc_fssetxattr(filp, arg);
1ad71a27
JK		 4088 case F2FS_IOC_GET_PIN_FILE:
4089 return f2fs_ioc_get_pin_file(filp, arg);
4090 case F2FS_IOC_SET_PIN_FILE:
4091 return f2fs_ioc_set_pin_file(filp, arg);
c4020b2d
CY		 4092 case F2FS_IOC_PRECACHE_EXTENTS:
4093 return f2fs_ioc_precache_extents(filp, arg);
04f0b2ea
QS		 4094 case F2FS_IOC_RESIZE_FS:
4095 return f2fs_ioc_resize_fs(filp, arg);
95ae251f
EB		 4096 case FS_IOC_ENABLE_VERITY:
4097 return f2fs_ioc_enable_verity(filp, arg);
4098 case FS_IOC_MEASURE_VERITY:
4099 return f2fs_ioc_measure_verity(filp, arg);
3357af8f
EB		 4100 case FS_IOC_GETFSLABEL:
4101 return f2fs_ioc_getfslabel(filp, arg);
4102 case FS_IOC_SETFSLABEL:
4103 return f2fs_ioc_setfslabel(filp, arg);
439dfb10
CY		 4104 case F2FS_IOC_GET_COMPRESS_BLOCKS:
4105 return f2fs_get_compress_blocks(filp, arg);
ef8d563f
CY		 4106 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
4107 return f2fs_release_compress_blocks(filp, arg);
c75488fb
CY		 4108 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
4109 return f2fs_reserve_compress_blocks(filp, arg);
9af84648
DJ		 4110 case F2FS_IOC_SEC_TRIM_FILE:
4111 return f2fs_sec_trim_file(filp, arg);
9e2a5f8c
DJ		 4112 case F2FS_IOC_GET_COMPRESS_OPTION:
4113 return f2fs_ioc_get_compress_option(filp, arg);
e1e8debe
DJ		 4114 case F2FS_IOC_SET_COMPRESS_OPTION:
4115 return f2fs_ioc_set_compress_option(filp, arg);
fbfa2cc5
JK		 4116 default:
4117 return -ENOTTY;
4118 }
4119}
4120
34178b1b
CY		 4121long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
4122{
4123 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
4124 return -EIO;
4125 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
4126 return -ENOSPC;
4127
4128 return __f2fs_ioctl(filp, cmd, arg);
4129}
4130
4c8ff709
CY		 4131static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
4132{
4133 struct file *file = iocb->ki_filp;
4134 struct inode *inode = file_inode(file);
8b83ac81 4135 int ret;
4c8ff709
CY		 4136
4137 if (!f2fs_is_compress_backend_ready(inode))
4138 return -EOPNOTSUPP;
4139
8b83ac81
CY		 4140 ret = generic_file_read_iter(iocb, iter);
4141
4142 if (ret > 0)
4143 f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret);
4144
4145 return ret;
4c8ff709
CY		 4146}
4147
fcc85a4d
JK		 4148static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
4149{
b439b103
JK		 4150 struct file *file = iocb->ki_filp;
4151 struct inode *inode = file_inode(file);
4152 ssize_t ret;
fcc85a4d 4153
126ce721
CY		 4154 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
4155 ret = -EIO;
4156 goto out;
4157 }
1f227a3e 4158
7bd29358
CY		 4159 if (!f2fs_is_compress_backend_ready(inode)) {
4160 ret = -EOPNOTSUPP;
4161 goto out;
4162 }
4c8ff709 4163
cb8434f1
GR		 4164 if (iocb->ki_flags & IOCB_NOWAIT) {
4165 if (!inode_trylock(inode)) {
126ce721
CY		 4166 ret = -EAGAIN;
4167 goto out;
4168 }
cb8434f1 4169 } else {
b91050a8
HL		 4170 inode_lock(inode);
4171 }
4172
b439b103
JK		 4173 ret = generic_write_checks(iocb, from);
4174 if (ret > 0) {
dc7a10dd
JK		 4175 bool preallocated = false;
4176 size_t target_size = 0;
dc91de78 4177 int err;
a7de6086 4178
dc91de78
JK		 4179 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
4180 set_inode_flag(inode, FI_NO_PREALLOC);
a7de6086 4181
d5d5f0c0
CX		 4182 if ((iocb->ki_flags & IOCB_NOWAIT)) {
4183 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
b91050a8 4184 iov_iter_count(from)) ||
d5d5f0c0
CX		 4185 f2fs_has_inline_data(inode) ||
4186 f2fs_force_buffered_io(inode, iocb, from)) {
4187 clear_inode_flag(inode, FI_NO_PREALLOC);
4188 inode_unlock(inode);
4189 ret = -EAGAIN;
4190 goto out;
4191 }
47501f87
JK		 4192 goto write;
4193 }
dc7a10dd 4194
47501f87
JK		 4195 if (is_inode_flag_set(inode, FI_NO_PREALLOC))
4196 goto write;
4197
4198 if (iocb->ki_flags & IOCB_DIRECT) {
4199 /*
4200 * Convert inline data for Direct I/O before entering
4201 * f2fs_direct_IO().
4202 */
4203 err = f2fs_convert_inline_inode(inode);
4204 if (err)
4205 goto out_err;
4206 /*
4207 * If force_buffere_io() is true, we have to allocate
4208 * blocks all the time, since f2fs_direct_IO will fall
4209 * back to buffered IO.
4210 */
4211 if (!f2fs_force_buffered_io(inode, iocb, from) &&
4212 allow_outplace_dio(inode, iocb, from))
4213 goto write;
4214 }
4215 preallocated = true;
4216 target_size = iocb->ki_pos + iov_iter_count(from);
4217
4218 err = f2fs_preallocate_blocks(iocb, from);
4219 if (err) {
4220out_err:
4221 clear_inode_flag(inode, FI_NO_PREALLOC);
4222 inode_unlock(inode);
4223 ret = err;
4224 goto out;
9dfa1baf 4225 }
47501f87 4226write:
a7de6086 4227 ret = __generic_file_write_iter(iocb, from);
dc91de78 4228 clear_inode_flag(inode, FI_NO_PREALLOC);
b0af6d49 4229
dc7a10dd
JK		 4230 /* if we couldn't write data, we should deallocate blocks. */
4231 if (preallocated && i_size_read(inode) < target_size)
4232 f2fs_truncate(inode);
4233
b0af6d49
CY		 4234 if (ret > 0)
4235 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
b439b103
JK		 4236 }
4237 inode_unlock(inode);
126ce721
CY		 4238out:
4239 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
4240 iov_iter_count(from), ret);
e2592217
CH		 4241 if (ret > 0)
4242 ret = generic_write_sync(iocb, ret);
b439b103 4243 return ret;
fcc85a4d
JK		 4244}
4245
e9750824 4246#ifdef CONFIG_COMPAT
34178b1b
CY		 4247struct compat_f2fs_gc_range {
4248 u32 sync;
4249 compat_u64 start;
4250 compat_u64 len;
4251};
4252#define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\
4253 struct compat_f2fs_gc_range)
4254
4255static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg)
4256{
4257 struct compat_f2fs_gc_range __user *urange;
4258 struct f2fs_gc_range range;
4259 int err;
4260
4261 urange = compat_ptr(arg);
4262 err = get_user(range.sync, &urange->sync);
4263 err |= get_user(range.start, &urange->start);
4264 err |= get_user(range.len, &urange->len);
4265 if (err)
4266 return -EFAULT;
4267
4268 return __f2fs_ioc_gc_range(file, &range);
4269}
4270
4271struct compat_f2fs_move_range {
4272 u32 dst_fd;
4273 compat_u64 pos_in;
4274 compat_u64 pos_out;
4275 compat_u64 len;
4276};
4277#define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
4278 struct compat_f2fs_move_range)
4279
4280static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg)
4281{
4282 struct compat_f2fs_move_range __user *urange;
4283 struct f2fs_move_range range;
4284 int err;
4285
4286 urange = compat_ptr(arg);
4287 err = get_user(range.dst_fd, &urange->dst_fd);
4288 err |= get_user(range.pos_in, &urange->pos_in);
4289 err |= get_user(range.pos_out, &urange->pos_out);
4290 err |= get_user(range.len, &urange->len);
4291 if (err)
4292 return -EFAULT;
4293
4294 return __f2fs_ioc_move_range(file, &range);
4295}
4296
e9750824
NJ		 4297long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
4298{
34178b1b
CY		 4299 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
4300 return -EIO;
4301 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file))))
4302 return -ENOSPC;
4303
e9750824 4304 switch (cmd) {
3357af8f
EB		 4305 case FS_IOC32_GETFLAGS:
4306 cmd = FS_IOC_GETFLAGS;
e9750824 4307 break;
3357af8f
EB		 4308 case FS_IOC32_SETFLAGS:
4309 cmd = FS_IOC_SETFLAGS;
e9750824 4310 break;
3357af8f
EB		 4311 case FS_IOC32_GETVERSION:
4312 cmd = FS_IOC_GETVERSION;
04ef4b62 4313 break;
34178b1b
CY		 4314 case F2FS_IOC32_GARBAGE_COLLECT_RANGE:
4315 return f2fs_compat_ioc_gc_range(file, arg);
4316 case F2FS_IOC32_MOVE_RANGE:
4317 return f2fs_compat_ioc_move_range(file, arg);
04ef4b62
CY		 4318 case F2FS_IOC_START_ATOMIC_WRITE:
4319 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4320 case F2FS_IOC_START_VOLATILE_WRITE:
4321 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4322 case F2FS_IOC_ABORT_VOLATILE_WRITE:
4323 case F2FS_IOC_SHUTDOWN:
314999dc 4324 case FITRIM:
3357af8f
EB		 4325 case FS_IOC_SET_ENCRYPTION_POLICY:
4326 case FS_IOC_GET_ENCRYPTION_PWSALT:
4327 case FS_IOC_GET_ENCRYPTION_POLICY:
8ce589c7
EB		 4328 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4329 case FS_IOC_ADD_ENCRYPTION_KEY:
4330 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4331 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4332 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
ee446e1a 4333 case FS_IOC_GET_ENCRYPTION_NONCE:
04ef4b62
CY		 4334 case F2FS_IOC_GARBAGE_COLLECT:
4335 case F2FS_IOC_WRITE_CHECKPOINT:
4336 case F2FS_IOC_DEFRAGMENT:
e066b83c 4337 case F2FS_IOC_FLUSH_DEVICE:
e65ef207 4338 case F2FS_IOC_GET_FEATURES:
3357af8f
EB		 4339 case FS_IOC_FSGETXATTR:
4340 case FS_IOC_FSSETXATTR:
1ad71a27
JK		 4341 case F2FS_IOC_GET_PIN_FILE:
4342 case F2FS_IOC_SET_PIN_FILE:
c4020b2d 4343 case F2FS_IOC_PRECACHE_EXTENTS:
04f0b2ea 4344 case F2FS_IOC_RESIZE_FS:
95ae251f
EB		 4345 case FS_IOC_ENABLE_VERITY:
4346 case FS_IOC_MEASURE_VERITY:
3357af8f
EB		 4347 case FS_IOC_GETFSLABEL:
4348 case FS_IOC_SETFSLABEL:
439dfb10 4349 case F2FS_IOC_GET_COMPRESS_BLOCKS:
ef8d563f 4350 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
c75488fb 4351 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
9af84648 4352 case F2FS_IOC_SEC_TRIM_FILE:
9e2a5f8c 4353 case F2FS_IOC_GET_COMPRESS_OPTION:
e1e8debe 4354 case F2FS_IOC_SET_COMPRESS_OPTION:
4dd6f977 4355 break;
e9750824
NJ		 4356 default:
4357 return -ENOIOCTLCMD;
4358 }
34178b1b 4359 return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
e9750824
NJ		 4360}
4361#endif
4362
fbfa2cc5 4363const struct file_operations f2fs_file_operations = {
267378d4 4364 .llseek = f2fs_llseek,
4c8ff709 4365 .read_iter = f2fs_file_read_iter,
fcc85a4d
JK		 4366 .write_iter = f2fs_file_write_iter,
4367 .open = f2fs_file_open,
12662234 4368 .release = f2fs_release_file,
fbfa2cc5 4369 .mmap = f2fs_file_mmap,
7a10f017 4370 .flush = f2fs_file_flush,
fbfa2cc5
JK		 4371 .fsync = f2fs_sync_file,
4372 .fallocate = f2fs_fallocate,
4373 .unlocked_ioctl = f2fs_ioctl,
e9750824
NJ		 4374#ifdef CONFIG_COMPAT
4375 .compat_ioctl = f2fs_compat_ioctl,
4376#endif
fbfa2cc5 4377 .splice_read = generic_file_splice_read,
8d020765 4378 .splice_write = iter_file_splice_write,
fbfa2cc5 4379};
Linux 6.x block layer and io_uring tree(s)