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f2fs: trace: fix typo
[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>
fbfa2cc5 34
ea4d479b 35static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
5a3a2d83
QS		 36{
37 struct inode *inode = file_inode(vmf->vma->vm_file);
ea4d479b 38 vm_fault_t ret;
5a3a2d83
QS		 39
40 down_read(&F2FS_I(inode)->i_mmap_sem);
ea4d479b 41 ret = filemap_fault(vmf);
5a3a2d83
QS		 42 up_read(&F2FS_I(inode)->i_mmap_sem);
43
8b83ac81
CY		 44 if (!ret)
45 f2fs_update_iostat(F2FS_I_SB(inode), APP_MAPPED_READ_IO,
46 F2FS_BLKSIZE);
47
d7648343
CY		 48 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
49
ea4d479b 50 return ret;
5a3a2d83
QS		 51}
52
ea4d479b 53static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
fbfa2cc5
JK		 54{
55 struct page *page = vmf->page;
11bac800 56 struct inode *inode = file_inode(vmf->vma->vm_file);
4081363f 57 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bdf03299 58 struct dnode_of_data dn;
4c8ff709
CY		 59 bool need_alloc = true;
60 int err = 0;
fbfa2cc5 61
1f227a3e
JK		 62 if (unlikely(f2fs_cp_error(sbi))) {
63 err = -EIO;
64 goto err;
65 }
66
00e09c0b
CY		 67 if (!f2fs_is_checkpoint_ready(sbi)) {
68 err = -ENOSPC;
955ebcd3 69 goto err;
00e09c0b 70 }
1f227a3e 71
4c8ff709
CY		 72#ifdef CONFIG_F2FS_FS_COMPRESSION
73 if (f2fs_compressed_file(inode)) {
74 int ret = f2fs_is_compressed_cluster(inode, page->index);
75
76 if (ret < 0) {
77 err = ret;
78 goto err;
79 } else if (ret) {
80 if (ret < F2FS_I(inode)->i_cluster_size) {
81 err = -EAGAIN;
82 goto err;
83 }
84 need_alloc = false;
85 }
86 }
87#endif
bdf03299 88 /* should do out of any locked page */
4c8ff709
CY		 89 if (need_alloc)
90 f2fs_balance_fs(sbi, true);
bdf03299 91
fbfa2cc5 92 sb_start_pagefault(inode->i_sb);
b3d208f9
JK		 93
94 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
b067ba1f 95
11bac800 96 file_update_time(vmf->vma->vm_file);
5a3a2d83 97 down_read(&F2FS_I(inode)->i_mmap_sem);
fbfa2cc5 98 lock_page(page);
6bacf52f 99 if (unlikely(page->mapping != inode->i_mapping ||
9851e6e1 100 page_offset(page) > i_size_read(inode) ||
6bacf52f 101 !PageUptodate(page))) {
fbfa2cc5
JK		 102 unlock_page(page);
103 err = -EFAULT;
5a3a2d83 104 goto out_sem;
fbfa2cc5
JK		 105 }
106
4c8ff709
CY		 107 if (need_alloc) {
108 /* block allocation */
0ef81833 109 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
4c8ff709
CY		 110 set_new_dnode(&dn, inode, NULL, NULL, 0);
111 err = f2fs_get_block(&dn, page->index);
112 f2fs_put_dnode(&dn);
0ef81833 113 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
39a86958
CY		 114 }
115
06c7540f
CY		 116#ifdef CONFIG_F2FS_FS_COMPRESSION
117 if (!need_alloc) {
118 set_new_dnode(&dn, inode, NULL, NULL, 0);
119 err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
120 f2fs_put_dnode(&dn);
121 }
122#endif
123 if (err) {
124 unlock_page(page);
125 goto out_sem;
39a86958
CY		 126 }
127
bae0ee7a 128 f2fs_wait_on_page_writeback(page, DATA, false, true);
39a86958
CY		 129
130 /* wait for GCed page writeback via META_MAPPING */
131 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
132
fbfa2cc5
JK		 133 /*
134 * check to see if the page is mapped already (no holes)
135 */
136 if (PageMappedToDisk(page))
39a86958 137 goto out_sem;
fbfa2cc5
JK		 138
139 /* page is wholly or partially inside EOF */
09cbfeaf 140 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
9edcdabf 141 i_size_read(inode)) {
193bea1d 142 loff_t offset;
f11e98bd 143
09cbfeaf
KS		 144 offset = i_size_read(inode) & ~PAGE_MASK;
145 zero_user_segment(page, offset, PAGE_SIZE);
fbfa2cc5
JK		 146 }
147 set_page_dirty(page);
237c0790
JK		 148 if (!PageUptodate(page))
149 SetPageUptodate(page);
fbfa2cc5 150
b0af6d49 151 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
c75f2feb 152 f2fs_update_time(sbi, REQ_TIME);
b0af6d49 153
e943a10d 154 trace_f2fs_vm_page_mkwrite(page, DATA);
5a3a2d83
QS		 155out_sem:
156 up_read(&F2FS_I(inode)->i_mmap_sem);
39a86958 157
fbfa2cc5 158 sb_end_pagefault(inode->i_sb);
1f227a3e 159err:
fbfa2cc5
JK		 160 return block_page_mkwrite_return(err);
161}
162
163static const struct vm_operations_struct f2fs_file_vm_ops = {
5a3a2d83 164 .fault = f2fs_filemap_fault,
f1820361 165 .map_pages = filemap_map_pages,
692bb55d 166 .page_mkwrite = f2fs_vm_page_mkwrite,
fbfa2cc5
JK		 167};
168
354a3399
JK		 169static int get_parent_ino(struct inode *inode, nid_t *pino)
170{
171 struct dentry *dentry;
172
84c9c2de
EB		 173 /*
174 * Make sure to get the non-deleted alias. The alias associated with
175 * the open file descriptor being fsync()'ed may be deleted already.
176 */
177 dentry = d_find_alias(inode);
354a3399
JK		 178 if (!dentry)
179 return 0;
180
f0947e5c
JK		 181 *pino = parent_ino(dentry);
182 dput(dentry);
354a3399
JK		 183 return 1;
184}
185
a5fd5050 186static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
9d1589ef 187{
4081363f 188 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
a5fd5050 189 enum cp_reason_type cp_reason = CP_NO_NEEDED;
9d1589ef 190
a5fd5050
CY		 191 if (!S_ISREG(inode->i_mode))
192 cp_reason = CP_NON_REGULAR;
4c8ff709
CY		 193 else if (f2fs_compressed_file(inode))
194 cp_reason = CP_COMPRESSED;
a5fd5050
CY		 195 else if (inode->i_nlink != 1)
196 cp_reason = CP_HARDLINK;
bbf156f7 197 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
a5fd5050 198 cp_reason = CP_SB_NEED_CP;
9d1589ef 199 else if (file_wrong_pino(inode))
a5fd5050 200 cp_reason = CP_WRONG_PINO;
4d57b86d 201 else if (!f2fs_space_for_roll_forward(sbi))
a5fd5050 202 cp_reason = CP_NO_SPC_ROLL;
4d57b86d 203 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
a5fd5050 204 cp_reason = CP_NODE_NEED_CP;
d5053a34 205 else if (test_opt(sbi, FASTBOOT))
a5fd5050 206 cp_reason = CP_FASTBOOT_MODE;
63189b78 207 else if (F2FS_OPTION(sbi).active_logs == 2)
a5fd5050 208 cp_reason = CP_SPEC_LOG_NUM;
63189b78 209 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
4d57b86d
CY		 210 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
211 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
212 TRANS_DIR_INO))
0a007b97 213 cp_reason = CP_RECOVER_DIR;
9d1589ef 214
a5fd5050 215 return cp_reason;
9d1589ef
CY		 216}
217
9c7bb702
CL		 218static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
219{
220 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
221 bool ret = false;
222 /* But we need to avoid that there are some inode updates */
4d57b86d 223 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
9c7bb702
CL		 224 ret = true;
225 f2fs_put_page(i, 0);
226 return ret;
227}
228
51455b19
CL		 229static void try_to_fix_pino(struct inode *inode)
230{
231 struct f2fs_inode_info *fi = F2FS_I(inode);
232 nid_t pino;
233
234 down_write(&fi->i_sem);
51455b19
CL		 235 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
236 get_parent_ino(inode, &pino)) {
205b9822 237 f2fs_i_pino_write(inode, pino);
51455b19 238 file_got_pino(inode);
51455b19 239 }
ee6d182f 240 up_write(&fi->i_sem);
51455b19
CL		 241}
242
608514de
JK		 243static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
244 int datasync, bool atomic)
fbfa2cc5
JK		 245{
246 struct inode *inode = file->f_mapping->host;
4081363f 247 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2403c155 248 nid_t ino = inode->i_ino;
fbfa2cc5 249 int ret = 0;
a5fd5050 250 enum cp_reason_type cp_reason = 0;
fbfa2cc5 251 struct writeback_control wbc = {
c81bf1c8 252 .sync_mode = WB_SYNC_ALL,
fbfa2cc5
JK		 253 .nr_to_write = LONG_MAX,
254 .for_reclaim = 0,
255 };
50fa53ec 256 unsigned int seq_id = 0;
fbfa2cc5 257
4354994f
DR		 258 if (unlikely(f2fs_readonly(inode->i_sb) ||
259 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
1fa95b0b
NJ		 260 return 0;
261
a2a4a7e4 262 trace_f2fs_sync_file_enter(inode);
ea1aa12c 263
b61ac5b7
YH		 264 if (S_ISDIR(inode->i_mode))
265 goto go_write;
266
ea1aa12c 267 /* if fdatasync is triggered, let's do in-place-update */
c46a155b 268 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
91942321 269 set_inode_flag(inode, FI_NEED_IPU);
3b49c9a1 270 ret = file_write_and_wait_range(file, start, end);
91942321 271 clear_inode_flag(inode, FI_NEED_IPU);
c1ce1b02 272
a2a4a7e4 273 if (ret) {
a5fd5050 274 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
fbfa2cc5 275 return ret;
a2a4a7e4 276 }
fbfa2cc5 277
9c7bb702 278 /* if the inode is dirty, let's recover all the time */
281518c6 279 if (!f2fs_skip_inode_update(inode, datasync)) {
2286c020 280 f2fs_write_inode(inode, NULL);
9c7bb702
CL		 281 goto go_write;
282 }
283
6d99ba41
JK		 284 /*
285 * if there is no written data, don't waste time to write recovery info.
286 */
91942321 287 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
4d57b86d 288 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
19c9c466 289
9c7bb702
CL		 290 /* it may call write_inode just prior to fsync */
291 if (need_inode_page_update(sbi, ino))
19c9c466 292 goto go_write;
19c9c466 293
91942321 294 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
4d57b86d 295 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
6d99ba41
JK		 296 goto flush_out;
297 goto out;
298 }
19c9c466 299go_write:
e5d2385e
JK		 300 /*
301 * Both of fdatasync() and fsync() are able to be recovered from
302 * sudden-power-off.
303 */
91942321 304 down_read(&F2FS_I(inode)->i_sem);
a5fd5050 305 cp_reason = need_do_checkpoint(inode);
91942321 306 up_read(&F2FS_I(inode)->i_sem);
d928bfbf 307
a5fd5050 308 if (cp_reason) {
fbfa2cc5
JK		 309 /* all the dirty node pages should be flushed for POR */
310 ret = f2fs_sync_fs(inode->i_sb, 1);
d928bfbf 311
51455b19
CL		 312 /*
313 * We've secured consistency through sync_fs. Following pino
314 * will be used only for fsynced inodes after checkpoint.
315 */
316 try_to_fix_pino(inode);
91942321
JK		 317 clear_inode_flag(inode, FI_APPEND_WRITE);
318 clear_inode_flag(inode, FI_UPDATE_WRITE);
51455b19
CL		 319 goto out;
320 }
88bd02c9 321sync_nodes:
c29fd0c0 322 atomic_inc(&sbi->wb_sync_req[NODE]);
50fa53ec 323 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
c29fd0c0 324 atomic_dec(&sbi->wb_sync_req[NODE]);
c267ec15
JK		 325 if (ret)
326 goto out;
51455b19 327
871f599f 328 /* if cp_error was enabled, we should avoid infinite loop */
6d5a1495
CY		 329 if (unlikely(f2fs_cp_error(sbi))) {
330 ret = -EIO;
871f599f 331 goto out;
6d5a1495 332 }
871f599f 333
4d57b86d 334 if (f2fs_need_inode_block_update(sbi, ino)) {
7c45729a 335 f2fs_mark_inode_dirty_sync(inode, true);
51455b19
CL		 336 f2fs_write_inode(inode, NULL);
337 goto sync_nodes;
fbfa2cc5 338 }
51455b19 339
b6a245eb
JK		 340 /*
341 * If it's atomic_write, it's just fine to keep write ordering. So
342 * here we don't need to wait for node write completion, since we use
343 * node chain which serializes node blocks. If one of node writes are
344 * reordered, we can see simply broken chain, resulting in stopping
345 * roll-forward recovery. It means we'll recover all or none node blocks
346 * given fsync mark.
347 */
348 if (!atomic) {
50fa53ec 349 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
b6a245eb
JK		 350 if (ret)
351 goto out;
352 }
51455b19
CL		 353
354 /* once recovery info is written, don't need to tack this */
4d57b86d 355 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
91942321 356 clear_inode_flag(inode, FI_APPEND_WRITE);
51455b19 357flush_out:
d6290814 358 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
39d787be 359 ret = f2fs_issue_flush(sbi, inode->i_ino);
3f06252f 360 if (!ret) {
4d57b86d 361 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
3f06252f 362 clear_inode_flag(inode, FI_UPDATE_WRITE);
4d57b86d 363 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
3f06252f 364 }
d0239e1b 365 f2fs_update_time(sbi, REQ_TIME);
fbfa2cc5 366out:
a5fd5050 367 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
05ca3632 368 f2fs_trace_ios(NULL, 1);
fbfa2cc5
JK		 369 return ret;
370}
371
608514de
JK		 372int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
373{
1f227a3e
JK		 374 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
375 return -EIO;
608514de
JK		 376 return f2fs_do_sync_file(file, start, end, datasync, false);
377}
378
4cb03fec
MWO		 379static bool __found_offset(struct address_space *mapping, block_t blkaddr,
380 pgoff_t index, int whence)
7f7670fe
JK		 381{
382 switch (whence) {
383 case SEEK_DATA:
4cb03fec
MWO		 384 if (__is_valid_data_blkaddr(blkaddr))
385 return true;
386 if (blkaddr == NEW_ADDR &&
387 xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY))
7f7670fe
JK		 388 return true;
389 break;
390 case SEEK_HOLE:
391 if (blkaddr == NULL_ADDR)
392 return true;
393 break;
394 }
395 return false;
396}
397
267378d4
CY		 398static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
399{
400 struct inode *inode = file->f_mapping->host;
401 loff_t maxbytes = inode->i_sb->s_maxbytes;
402 struct dnode_of_data dn;
4cb03fec 403 pgoff_t pgofs, end_offset;
7f7670fe
JK		 404 loff_t data_ofs = offset;
405 loff_t isize;
267378d4
CY		 406 int err = 0;
407
5955102c 408 inode_lock(inode);
267378d4
CY		 409
410 isize = i_size_read(inode);
411 if (offset >= isize)
412 goto fail;
413
414 /* handle inline data case */
622f28ae 415 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
267378d4
CY		 416 if (whence == SEEK_HOLE)
417 data_ofs = isize;
418 goto found;
419 }
420
09cbfeaf 421 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
267378d4 422
09cbfeaf 423 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 424 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 425 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
267378d4
CY		 426 if (err && err != -ENOENT) {
427 goto fail;
428 } else if (err == -ENOENT) {
e1c42045 429 /* direct node does not exists */
267378d4 430 if (whence == SEEK_DATA) {
4d57b86d 431 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
267378d4
CY		 432 continue;
433 } else {
434 goto found;
435 }
436 }
437
81ca7350 438 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
267378d4
CY		 439
440 /* find data/hole in dnode block */
441 for (; dn.ofs_in_node < end_offset;
442 dn.ofs_in_node++, pgofs++,
09cbfeaf 443 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
267378d4 444 block_t blkaddr;
f11e98bd 445
a2ced1ce 446 blkaddr = f2fs_data_blkaddr(&dn);
267378d4 447
c9b60788
CY		 448 if (__is_valid_data_blkaddr(blkaddr) &&
449 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
93770ab7 450 blkaddr, DATA_GENERIC_ENHANCE)) {
c9b60788
CY		 451 f2fs_put_dnode(&dn);
452 goto fail;
453 }
454
4cb03fec 455 if (__found_offset(file->f_mapping, blkaddr,
e1da7872 456 pgofs, whence)) {
267378d4
CY		 457 f2fs_put_dnode(&dn);
458 goto found;
459 }
460 }
461 f2fs_put_dnode(&dn);
462 }
463
464 if (whence == SEEK_DATA)
465 goto fail;
267378d4 466found:
fe369bc8
JK		 467 if (whence == SEEK_HOLE && data_ofs > isize)
468 data_ofs = isize;
5955102c 469 inode_unlock(inode);
267378d4
CY		 470 return vfs_setpos(file, data_ofs, maxbytes);
471fail:
5955102c 472 inode_unlock(inode);
267378d4
CY		 473 return -ENXIO;
474}
475
476static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
477{
478 struct inode *inode = file->f_mapping->host;
479 loff_t maxbytes = inode->i_sb->s_maxbytes;
480
481 switch (whence) {
482 case SEEK_SET:
483 case SEEK_CUR:
484 case SEEK_END:
485 return generic_file_llseek_size(file, offset, whence,
486 maxbytes, i_size_read(inode));
487 case SEEK_DATA:
488 case SEEK_HOLE:
0b4c5afd
JK		 489 if (offset < 0)
490 return -ENXIO;
267378d4
CY		 491 return f2fs_seek_block(file, offset, whence);
492 }
493
494 return -EINVAL;
495}
496
fbfa2cc5
JK		 497static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
498{
b3d208f9 499 struct inode *inode = file_inode(file);
b9d777b8 500 int err;
b3d208f9 501
1f227a3e
JK		 502 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
503 return -EIO;
504
4c8ff709
CY		 505 if (!f2fs_is_compress_backend_ready(inode))
506 return -EOPNOTSUPP;
507
b3d208f9 508 /* we don't need to use inline_data strictly */
b9d777b8
JK		 509 err = f2fs_convert_inline_inode(inode);
510 if (err)
511 return err;
b3d208f9 512
fbfa2cc5
JK		 513 file_accessed(file);
514 vma->vm_ops = &f2fs_file_vm_ops;
4c8ff709 515 set_inode_flag(inode, FI_MMAP_FILE);
fbfa2cc5
JK		 516 return 0;
517}
518
fcc85a4d
JK		 519static int f2fs_file_open(struct inode *inode, struct file *filp)
520{
2e168c82 521 int err = fscrypt_file_open(inode, filp);
fcc85a4d 522
95ae251f
EB		 523 if (err)
524 return err;
525
4c8ff709
CY		 526 if (!f2fs_is_compress_backend_ready(inode))
527 return -EOPNOTSUPP;
528
95ae251f 529 err = fsverity_file_open(inode, filp);
2e168c82
EB		 530 if (err)
531 return err;
b91050a8
HL		 532
533 filp->f_mode |= FMODE_NOWAIT;
534
0abd675e 535 return dquot_file_open(inode, filp);
fcc85a4d
JK		 536}
537
4d57b86d 538void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
fbfa2cc5 539{
4081363f 540 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
fbfa2cc5 541 struct f2fs_node *raw_node;
19b2c30d 542 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
fbfa2cc5 543 __le32 *addr;
7a2af766 544 int base = 0;
4c8ff709
CY		 545 bool compressed_cluster = false;
546 int cluster_index = 0, valid_blocks = 0;
547 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
ef8d563f 548 bool released = !F2FS_I(dn->inode)->i_compr_blocks;
7a2af766
CY		 549
550 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
551 base = get_extra_isize(dn->inode);
fbfa2cc5 552
45590710 553 raw_node = F2FS_NODE(dn->node_page);
7a2af766 554 addr = blkaddr_in_node(raw_node) + base + ofs;
fbfa2cc5 555
4c8ff709
CY		 556 /* Assumption: truncateion starts with cluster */
557 for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
fbfa2cc5 558 block_t blkaddr = le32_to_cpu(*addr);
f11e98bd 559
4c8ff709
CY		 560 if (f2fs_compressed_file(dn->inode) &&
561 !(cluster_index & (cluster_size - 1))) {
562 if (compressed_cluster)
563 f2fs_i_compr_blocks_update(dn->inode,
564 valid_blocks, false);
565 compressed_cluster = (blkaddr == COMPRESS_ADDR);
566 valid_blocks = 0;
567 }
568
fbfa2cc5
JK		 569 if (blkaddr == NULL_ADDR)
570 continue;
571
e1509cf2 572 dn->data_blkaddr = NULL_ADDR;
4d57b86d 573 f2fs_set_data_blkaddr(dn);
c9b60788 574
4c8ff709
CY		 575 if (__is_valid_data_blkaddr(blkaddr)) {
576 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
93770ab7 577 DATA_GENERIC_ENHANCE))
4c8ff709
CY		 578 continue;
579 if (compressed_cluster)
580 valid_blocks++;
581 }
c9b60788 582
3c6c2beb 583 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
91942321 584 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
4c8ff709
CY		 585
586 f2fs_invalidate_blocks(sbi, blkaddr);
ef8d563f
CY		 587
588 if (!released || blkaddr != COMPRESS_ADDR)
589 nr_free++;
fbfa2cc5 590 }
19b2c30d 591
4c8ff709
CY		 592 if (compressed_cluster)
593 f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
594
fbfa2cc5 595 if (nr_free) {
19b2c30d
CY		 596 pgoff_t fofs;
597 /*
598 * once we invalidate valid blkaddr in range [ofs, ofs + count],
599 * we will invalidate all blkaddr in the whole range.
600 */
4d57b86d 601 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
81ca7350 602 dn->inode) + ofs;
19b2c30d 603 f2fs_update_extent_cache_range(dn, fofs, 0, len);
d7cc950b 604 dec_valid_block_count(sbi, dn->inode, nr_free);
fbfa2cc5
JK		 605 }
606 dn->ofs_in_node = ofs;
51dd6249 607
d0239e1b 608 f2fs_update_time(sbi, REQ_TIME);
51dd6249
NJ		 609 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
610 dn->ofs_in_node, nr_free);
fbfa2cc5
JK		 611}
612
4d57b86d 613void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
fbfa2cc5 614{
d02a6e61 615 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
fbfa2cc5
JK		 616}
617
0bfcfcca 618static int truncate_partial_data_page(struct inode *inode, u64 from,
43f3eae1 619 bool cache_only)
fbfa2cc5 620{
193bea1d 621 loff_t offset = from & (PAGE_SIZE - 1);
09cbfeaf 622 pgoff_t index = from >> PAGE_SHIFT;
43f3eae1 623 struct address_space *mapping = inode->i_mapping;
fbfa2cc5
JK		 624 struct page *page;
625
43f3eae1 626 if (!offset && !cache_only)
b3d208f9 627 return 0;
fbfa2cc5 628
43f3eae1 629 if (cache_only) {
34b5d5c2 630 page = find_lock_page(mapping, index);
43f3eae1
JK		 631 if (page && PageUptodate(page))
632 goto truncate_out;
633 f2fs_put_page(page, 1);
b3d208f9 634 return 0;
43f3eae1 635 }
fbfa2cc5 636
4d57b86d 637 page = f2fs_get_lock_data_page(inode, index, true);
43f3eae1 638 if (IS_ERR(page))
a78aaa2c 639 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
43f3eae1 640truncate_out:
bae0ee7a 641 f2fs_wait_on_page_writeback(page, DATA, true, true);
09cbfeaf 642 zero_user(page, offset, PAGE_SIZE - offset);
a9bcf9bc
JK		 643
644 /* An encrypted inode should have a key and truncate the last page. */
62230e0d 645 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
a9bcf9bc 646 if (!cache_only)
0bfcfcca 647 set_page_dirty(page);
fbfa2cc5 648 f2fs_put_page(page, 1);
b3d208f9 649 return 0;
fbfa2cc5
JK		 650}
651
3265d3db 652int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock)
fbfa2cc5 653{
4081363f 654 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 655 struct dnode_of_data dn;
656 pgoff_t free_from;
9ffe0fb5 657 int count = 0, err = 0;
b3d208f9 658 struct page *ipage;
0bfcfcca 659 bool truncate_page = false;
fbfa2cc5 660
51dd6249
NJ		 661 trace_f2fs_truncate_blocks_enter(inode, from);
662
df033caf 663 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
fbfa2cc5 664
09210c97
CY		 665 if (free_from >= sbi->max_file_blocks)
666 goto free_partial;
667
764aa3e9 668 if (lock)
c42d28ce 669 f2fs_lock_op(sbi);
9ffe0fb5 670
4d57b86d 671 ipage = f2fs_get_node_page(sbi, inode->i_ino);
b3d208f9
JK		 672 if (IS_ERR(ipage)) {
673 err = PTR_ERR(ipage);
674 goto out;
675 }
676
677 if (f2fs_has_inline_data(inode)) {
4d57b86d 678 f2fs_truncate_inline_inode(inode, ipage, from);
b3d208f9 679 f2fs_put_page(ipage, 1);
0bfcfcca 680 truncate_page = true;
b3d208f9
JK		 681 goto out;
682 }
683
684 set_new_dnode(&dn, inode, ipage, NULL, 0);
4d57b86d 685 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
fbfa2cc5
JK		 686 if (err) {
687 if (err == -ENOENT)
688 goto free_next;
b3d208f9 689 goto out;
1ce86bf6
JK		 690 }
691
81ca7350 692 count = ADDRS_PER_PAGE(dn.node_page, inode);
fbfa2cc5
JK		 693
694 count -= dn.ofs_in_node;
9850cf4a 695 f2fs_bug_on(sbi, count < 0);
39936837 696
fbfa2cc5 697 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
4d57b86d 698 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5
JK		 699 free_from += count;
700 }
701
702 f2fs_put_dnode(&dn);
703free_next:
4d57b86d 704 err = f2fs_truncate_inode_blocks(inode, free_from);
764d2c80
JK		 705out:
706 if (lock)
c42d28ce 707 f2fs_unlock_op(sbi);
09210c97 708free_partial:
b3d208f9
JK		 709 /* lastly zero out the first data page */
710 if (!err)
0bfcfcca 711 err = truncate_partial_data_page(inode, from, truncate_page);
fbfa2cc5 712
51dd6249 713 trace_f2fs_truncate_blocks_exit(inode, err);
fbfa2cc5
JK		 714 return err;
715}
716
4c8ff709
CY		 717int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
718{
719 u64 free_from = from;
3265d3db 720 int err;
4c8ff709 721
3265d3db 722#ifdef CONFIG_F2FS_FS_COMPRESSION
4c8ff709
CY		 723 /*
724 * for compressed file, only support cluster size
725 * aligned truncation.
726 */
4fec3fc0
CY		 727 if (f2fs_compressed_file(inode))
728 free_from = round_up(from,
729 F2FS_I(inode)->i_cluster_size << PAGE_SHIFT);
3265d3db
CY		 730#endif
731
732 err = f2fs_do_truncate_blocks(inode, free_from, lock);
733 if (err)
734 return err;
735
736#ifdef CONFIG_F2FS_FS_COMPRESSION
17d7648d 737 if (from != free_from) {
3265d3db 738 err = f2fs_truncate_partial_cluster(inode, from, lock);
17d7648d
CY		 739 if (err)
740 return err;
741 }
3265d3db 742#endif
4c8ff709 743
17d7648d 744 return 0;
4c8ff709
CY		 745}
746
9a449e9c 747int f2fs_truncate(struct inode *inode)
fbfa2cc5 748{
b0154891
CY		 749 int err;
750
1f227a3e
JK		 751 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
752 return -EIO;
753
fbfa2cc5
JK		 754 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
755 S_ISLNK(inode->i_mode)))
b0154891 756 return 0;
fbfa2cc5 757
51dd6249
NJ		 758 trace_f2fs_truncate(inode);
759
14b44d23 760 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
c45d6002 761 f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
14b44d23
JK		 762 return -EIO;
763 }
7fa750a1 764
92dffd01 765 /* we should check inline_data size */
b9d777b8 766 if (!f2fs_may_inline_data(inode)) {
b0154891
CY		 767 err = f2fs_convert_inline_inode(inode);
768 if (err)
769 return err;
92dffd01
JK		 770 }
771
c42d28ce 772 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
b0154891
CY		 773 if (err)
774 return err;
775
078cd827 776 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 777 f2fs_mark_inode_dirty_sync(inode, false);
b0154891 778 return 0;
fbfa2cc5
JK		 779}
780
a528d35e 781int f2fs_getattr(const struct path *path, struct kstat *stat,
1c6d8ee4 782 u32 request_mask, unsigned int query_flags)
fbfa2cc5 783{
a528d35e 784 struct inode *inode = d_inode(path->dentry);
1c6d8ee4 785 struct f2fs_inode_info *fi = F2FS_I(inode);
1c1d35df 786 struct f2fs_inode *ri;
1c6d8ee4
CY		 787 unsigned int flags;
788
1c1d35df 789 if (f2fs_has_extra_attr(inode) &&
7beb01f7 790 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
1c1d35df
CY		 791 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
792 stat->result_mask |= STATX_BTIME;
793 stat->btime.tv_sec = fi->i_crtime.tv_sec;
794 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
795 }
796
36098557 797 flags = fi->i_flags;
fd26725f
CY		 798 if (flags & F2FS_COMPR_FL)
799 stat->attributes |= STATX_ATTR_COMPRESSED;
59c84408 800 if (flags & F2FS_APPEND_FL)
1c6d8ee4 801 stat->attributes |= STATX_ATTR_APPEND;
62230e0d 802 if (IS_ENCRYPTED(inode))
1c6d8ee4 803 stat->attributes |= STATX_ATTR_ENCRYPTED;
59c84408 804 if (flags & F2FS_IMMUTABLE_FL)
1c6d8ee4 805 stat->attributes |= STATX_ATTR_IMMUTABLE;
59c84408 806 if (flags & F2FS_NODUMP_FL)
1c6d8ee4 807 stat->attributes |= STATX_ATTR_NODUMP;
924e3194
EB		 808 if (IS_VERITY(inode))
809 stat->attributes |= STATX_ATTR_VERITY;
1c6d8ee4 810
fd26725f
CY		 811 stat->attributes_mask |= (STATX_ATTR_COMPRESSED |
812 STATX_ATTR_APPEND |
1c6d8ee4
CY		 813 STATX_ATTR_ENCRYPTED |
814 STATX_ATTR_IMMUTABLE |
924e3194
EB		 815 STATX_ATTR_NODUMP |
816 STATX_ATTR_VERITY);
1c6d8ee4 817
fbfa2cc5 818 generic_fillattr(inode, stat);
5b4267d1
JK		 819
820 /* we need to show initial sectors used for inline_data/dentries */
821 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
822 f2fs_has_inline_dentry(inode))
823 stat->blocks += (stat->size + 511) >> 9;
824
fbfa2cc5
JK		 825 return 0;
826}
827
828#ifdef CONFIG_F2FS_FS_POSIX_ACL
829static void __setattr_copy(struct inode *inode, const struct iattr *attr)
830{
fbfa2cc5
JK		 831 unsigned int ia_valid = attr->ia_valid;
832
833 if (ia_valid & ATTR_UID)
834 inode->i_uid = attr->ia_uid;
835 if (ia_valid & ATTR_GID)
836 inode->i_gid = attr->ia_gid;
eb31e2f6
AG		 837 if (ia_valid & ATTR_ATIME)
838 inode->i_atime = attr->ia_atime;
839 if (ia_valid & ATTR_MTIME)
840 inode->i_mtime = attr->ia_mtime;
841 if (ia_valid & ATTR_CTIME)
842 inode->i_ctime = attr->ia_ctime;
fbfa2cc5
JK		 843 if (ia_valid & ATTR_MODE) {
844 umode_t mode = attr->ia_mode;
845
846 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
847 mode &= ~S_ISGID;
91942321 848 set_acl_inode(inode, mode);
fbfa2cc5
JK		 849 }
850}
851#else
852#define __setattr_copy setattr_copy
853#endif
854
855int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
856{
2b0143b5 857 struct inode *inode = d_inode(dentry);
fbfa2cc5
JK		 858 int err;
859
1f227a3e
JK		 860 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
861 return -EIO;
862
4c8ff709
CY		 863 if ((attr->ia_valid & ATTR_SIZE) &&
864 !f2fs_is_compress_backend_ready(inode))
865 return -EOPNOTSUPP;
866
31051c85 867 err = setattr_prepare(dentry, attr);
fbfa2cc5
JK		 868 if (err)
869 return err;
870
20bb2479
EB		 871 err = fscrypt_prepare_setattr(dentry, attr);
872 if (err)
873 return err;
874
95ae251f
EB		 875 err = fsverity_prepare_setattr(dentry, attr);
876 if (err)
877 return err;
878
0abd675e
CY		 879 if (is_quota_modification(inode, attr)) {
880 err = dquot_initialize(inode);
881 if (err)
882 return err;
883 }
884 if ((attr->ia_valid & ATTR_UID &&
885 !uid_eq(attr->ia_uid, inode->i_uid)) ||
886 (attr->ia_valid & ATTR_GID &&
887 !gid_eq(attr->ia_gid, inode->i_gid))) {
af033b2a 888 f2fs_lock_op(F2FS_I_SB(inode));
0abd675e 889 err = dquot_transfer(inode, attr);
af033b2a
CY		 890 if (err) {
891 set_sbi_flag(F2FS_I_SB(inode),
892 SBI_QUOTA_NEED_REPAIR);
893 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e 894 return err;
af033b2a
CY		 895 }
896 /*
897 * update uid/gid under lock_op(), so that dquot and inode can
898 * be updated atomically.
899 */
900 if (attr->ia_valid & ATTR_UID)
901 inode->i_uid = attr->ia_uid;
902 if (attr->ia_valid & ATTR_GID)
903 inode->i_gid = attr->ia_gid;
904 f2fs_mark_inode_dirty_sync(inode, true);
905 f2fs_unlock_op(F2FS_I_SB(inode));
0abd675e
CY		 906 }
907
09db6a2e 908 if (attr->ia_valid & ATTR_SIZE) {
cfb9a34d
JK		 909 loff_t old_size = i_size_read(inode);
910
911 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
912 /*
913 * should convert inline inode before i_size_write to
914 * keep smaller than inline_data size with inline flag.
915 */
916 err = f2fs_convert_inline_inode(inode);
917 if (err)
918 return err;
919 }
a33c1502 920
a33c1502 921 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 922 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c1502
CY		 923
924 truncate_setsize(inode, attr->ia_size);
925
cfb9a34d 926 if (attr->ia_size <= old_size)
9a449e9c 927 err = f2fs_truncate(inode);
a33c1502
CY		 928 /*
929 * do not trim all blocks after i_size if target size is
930 * larger than i_size.
931 */
a33c1502 932 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455 933 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
a33c1502
CY		 934 if (err)
935 return err;
0cab80ee 936
c10c9820 937 spin_lock(&F2FS_I(inode)->i_size_lock);
cfb9a34d 938 inode->i_mtime = inode->i_ctime = current_time(inode);
a0d00fad 939 F2FS_I(inode)->last_disk_size = i_size_read(inode);
c10c9820 940 spin_unlock(&F2FS_I(inode)->i_size_lock);
fbfa2cc5
JK		 941 }
942
943 __setattr_copy(inode, attr);
944
945 if (attr->ia_valid & ATTR_MODE) {
4d57b86d 946 err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
91942321
JK		 947 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
948 inode->i_mode = F2FS_I(inode)->i_acl_mode;
949 clear_inode_flag(inode, FI_ACL_MODE);
fbfa2cc5
JK		 950 }
951 }
952
c0ed4405 953 /* file size may changed here */
ca597bdd 954 f2fs_mark_inode_dirty_sync(inode, true);
15d04354
JK		 955
956 /* inode change will produce dirty node pages flushed by checkpoint */
957 f2fs_balance_fs(F2FS_I_SB(inode), true);
958
fbfa2cc5
JK		 959 return err;
960}
961
962const struct inode_operations f2fs_file_inode_operations = {
963 .getattr = f2fs_getattr,
964 .setattr = f2fs_setattr,
965 .get_acl = f2fs_get_acl,
a6dda0e6 966 .set_acl = f2fs_set_acl,
fbfa2cc5 967 .listxattr = f2fs_listxattr,
9ab70134 968 .fiemap = f2fs_fiemap,
fbfa2cc5
JK		 969};
970
6394328a 971static int fill_zero(struct inode *inode, pgoff_t index,
fbfa2cc5
JK		 972 loff_t start, loff_t len)
973{
4081363f 974 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
fbfa2cc5
JK		 975 struct page *page;
976
977 if (!len)
6394328a 978 return 0;
fbfa2cc5 979
2c4db1a6 980 f2fs_balance_fs(sbi, true);
bd43df02 981
e479556b 982 f2fs_lock_op(sbi);
4d57b86d 983 page = f2fs_get_new_data_page(inode, NULL, index, false);
e479556b 984 f2fs_unlock_op(sbi);
fbfa2cc5 985
6394328a
CY		 986 if (IS_ERR(page))
987 return PTR_ERR(page);
988
bae0ee7a 989 f2fs_wait_on_page_writeback(page, DATA, true, true);
6394328a
CY		 990 zero_user(page, start, len);
991 set_page_dirty(page);
992 f2fs_put_page(page, 1);
993 return 0;
fbfa2cc5
JK		 994}
995
4d57b86d 996int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
fbfa2cc5 997{
fbfa2cc5
JK		 998 int err;
999
ea58711e 1000 while (pg_start < pg_end) {
fbfa2cc5 1001 struct dnode_of_data dn;
ea58711e 1002 pgoff_t end_offset, count;
9eaeba70 1003
fbfa2cc5 1004 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1005 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
fbfa2cc5 1006 if (err) {
ea58711e 1007 if (err == -ENOENT) {
4d57b86d
CY		 1008 pg_start = f2fs_get_next_page_offset(&dn,
1009 pg_start);
fbfa2cc5 1010 continue;
ea58711e 1011 }
fbfa2cc5
JK		 1012 return err;
1013 }
1014
81ca7350 1015 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
ea58711e
CY		 1016 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
1017
1018 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
1019
4d57b86d 1020 f2fs_truncate_data_blocks_range(&dn, count);
fbfa2cc5 1021 f2fs_put_dnode(&dn);
ea58711e
CY		 1022
1023 pg_start += count;
fbfa2cc5
JK		 1024 }
1025 return 0;
1026}
1027
a66c7b2f 1028static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
fbfa2cc5
JK		 1029{
1030 pgoff_t pg_start, pg_end;
1031 loff_t off_start, off_end;
b9d777b8 1032 int ret;
fbfa2cc5 1033
b9d777b8
JK		 1034 ret = f2fs_convert_inline_inode(inode);
1035 if (ret)
1036 return ret;
9ffe0fb5 1037
09cbfeaf
KS		 1038 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1039 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
fbfa2cc5 1040
09cbfeaf
KS		 1041 off_start = offset & (PAGE_SIZE - 1);
1042 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5
JK		 1043
1044 if (pg_start == pg_end) {
6394328a 1045 ret = fill_zero(inode, pg_start, off_start,
fbfa2cc5 1046 off_end - off_start);
6394328a
CY		 1047 if (ret)
1048 return ret;
fbfa2cc5 1049 } else {
6394328a
CY		 1050 if (off_start) {
1051 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1052 PAGE_SIZE - off_start);
6394328a
CY		 1053 if (ret)
1054 return ret;
1055 }
1056 if (off_end) {
1057 ret = fill_zero(inode, pg_end, 0, off_end);
1058 if (ret)
1059 return ret;
1060 }
fbfa2cc5
JK		 1061
1062 if (pg_start < pg_end) {
1063 struct address_space *mapping = inode->i_mapping;
1064 loff_t blk_start, blk_end;
4081363f 1065 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1127a3d4 1066
2c4db1a6 1067 f2fs_balance_fs(sbi, true);
fbfa2cc5 1068
09cbfeaf
KS		 1069 blk_start = (loff_t)pg_start << PAGE_SHIFT;
1070 blk_end = (loff_t)pg_end << PAGE_SHIFT;
a33c1502 1071
a33c1502 1072 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 1073 down_write(&F2FS_I(inode)->i_mmap_sem);
a33c1502 1074
fbfa2cc5
JK		 1075 truncate_inode_pages_range(mapping, blk_start,
1076 blk_end - 1);
39936837 1077
e479556b 1078 f2fs_lock_op(sbi);
4d57b86d 1079 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
e479556b 1080 f2fs_unlock_op(sbi);
a33c1502 1081
5a3a2d83 1082 up_write(&F2FS_I(inode)->i_mmap_sem);
6f8d4455 1083 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
fbfa2cc5
JK		 1084 }
1085 }
1086
fbfa2cc5
JK		 1087 return ret;
1088}
1089
0a2aa8fb
JK		 1090static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1091 int *do_replace, pgoff_t off, pgoff_t len)
b4ace337
CY		 1092{
1093 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1094 struct dnode_of_data dn;
0a2aa8fb 1095 int ret, done, i;
ecbaa406 1096
0a2aa8fb 1097next_dnode:
6e2c64ad 1098 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1099 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
6e2c64ad
JK		 1100 if (ret && ret != -ENOENT) {
1101 return ret;
1102 } else if (ret == -ENOENT) {
0a2aa8fb
JK		 1103 if (dn.max_level == 0)
1104 return -ENOENT;
4c8ff709
CY		 1105 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
1106 dn.ofs_in_node, len);
0a2aa8fb
JK		 1107 blkaddr += done;
1108 do_replace += done;
1109 goto next;
1110 }
1111
1112 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1113 dn.ofs_in_node, len);
1114 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
a2ced1ce 1115 *blkaddr = f2fs_data_blkaddr(&dn);
93770ab7
CY		 1116
1117 if (__is_valid_data_blkaddr(*blkaddr) &&
1118 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1119 DATA_GENERIC_ENHANCE)) {
1120 f2fs_put_dnode(&dn);
10f966bb 1121 return -EFSCORRUPTED;
93770ab7
CY		 1122 }
1123
4d57b86d 1124 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
0a2aa8fb 1125
b0332a0f 1126 if (f2fs_lfs_mode(sbi)) {
0a2aa8fb 1127 f2fs_put_dnode(&dn);
fd114ab2 1128 return -EOPNOTSUPP;
0a2aa8fb
JK		 1129 }
1130
6e2c64ad 1131 /* do not invalidate this block address */
f28b3434 1132 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
0a2aa8fb 1133 *do_replace = 1;
b4ace337 1134 }
6e2c64ad 1135 }
0a2aa8fb
JK		 1136 f2fs_put_dnode(&dn);
1137next:
1138 len -= done;
1139 off += done;
1140 if (len)
1141 goto next_dnode;
1142 return 0;
1143}
b4ace337 1144
0a2aa8fb
JK		 1145static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1146 int *do_replace, pgoff_t off, int len)
1147{
1148 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1149 struct dnode_of_data dn;
1150 int ret, i;
b4ace337 1151
0a2aa8fb
JK		 1152 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1153 if (*do_replace == 0)
1154 continue;
b4ace337 1155
0a2aa8fb 1156 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1157 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
0a2aa8fb
JK		 1158 if (ret) {
1159 dec_valid_block_count(sbi, inode, 1);
4d57b86d 1160 f2fs_invalidate_blocks(sbi, *blkaddr);
0a2aa8fb
JK		 1161 } else {
1162 f2fs_update_data_blkaddr(&dn, *blkaddr);
36abef4e 1163 }
0a2aa8fb
JK		 1164 f2fs_put_dnode(&dn);
1165 }
1166 return 0;
1167}
1168
1169static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1170 block_t *blkaddr, int *do_replace,
1171 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1172{
1173 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1174 pgoff_t i = 0;
1175 int ret;
36abef4e 1176
0a2aa8fb
JK		 1177 while (i < len) {
1178 if (blkaddr[i] == NULL_ADDR && !full) {
1179 i++;
1180 continue;
6e2c64ad 1181 }
b4ace337 1182
0a2aa8fb
JK		 1183 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1184 struct dnode_of_data dn;
1185 struct node_info ni;
1186 size_t new_size;
1187 pgoff_t ilen;
b4ace337 1188
0a2aa8fb 1189 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
4d57b86d 1190 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
0a2aa8fb
JK		 1191 if (ret)
1192 return ret;
b4ace337 1193
7735730d
CY		 1194 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
1195 if (ret) {
1196 f2fs_put_dnode(&dn);
1197 return ret;
1198 }
1199
0a2aa8fb
JK		 1200 ilen = min((pgoff_t)
1201 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1202 dn.ofs_in_node, len - i);
1203 do {
a2ced1ce 1204 dn.data_blkaddr = f2fs_data_blkaddr(&dn);
4d57b86d 1205 f2fs_truncate_data_blocks_range(&dn, 1);
0a2aa8fb
JK		 1206
1207 if (do_replace[i]) {
1208 f2fs_i_blocks_write(src_inode,
0abd675e 1209 1, false, false);
0a2aa8fb 1210 f2fs_i_blocks_write(dst_inode,
0abd675e 1211 1, true, false);
0a2aa8fb
JK		 1212 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1213 blkaddr[i], ni.version, true, false);
1214
1215 do_replace[i] = 0;
1216 }
1217 dn.ofs_in_node++;
1218 i++;
1f0d5c91 1219 new_size = (loff_t)(dst + i) << PAGE_SHIFT;
0a2aa8fb
JK		 1220 if (dst_inode->i_size < new_size)
1221 f2fs_i_size_write(dst_inode, new_size);
e87f7329 1222 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
6e2c64ad 1223
0a2aa8fb
JK		 1224 f2fs_put_dnode(&dn);
1225 } else {
1226 struct page *psrc, *pdst;
1227
4d57b86d
CY		 1228 psrc = f2fs_get_lock_data_page(src_inode,
1229 src + i, true);
0a2aa8fb
JK		 1230 if (IS_ERR(psrc))
1231 return PTR_ERR(psrc);
4d57b86d 1232 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
0a2aa8fb
JK		 1233 true);
1234 if (IS_ERR(pdst)) {
1235 f2fs_put_page(psrc, 1);
1236 return PTR_ERR(pdst);
1237 }
1238 f2fs_copy_page(psrc, pdst);
1239 set_page_dirty(pdst);
1240 f2fs_put_page(pdst, 1);
6e2c64ad 1241 f2fs_put_page(psrc, 1);
b4ace337 1242
4d57b86d
CY		 1243 ret = f2fs_truncate_hole(src_inode,
1244 src + i, src + i + 1);
0a2aa8fb
JK		 1245 if (ret)
1246 return ret;
1247 i++;
1248 }
6e2c64ad
JK		 1249 }
1250 return 0;
0a2aa8fb 1251}
b4ace337 1252
0a2aa8fb
JK		 1253static int __exchange_data_block(struct inode *src_inode,
1254 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
363cad7f 1255 pgoff_t len, bool full)
0a2aa8fb
JK		 1256{
1257 block_t *src_blkaddr;
1258 int *do_replace;
363cad7f 1259 pgoff_t olen;
0a2aa8fb
JK		 1260 int ret;
1261
363cad7f 1262 while (len) {
d02a6e61 1263 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
0a2aa8fb 1264
628b3d14 1265 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1266 array_size(olen, sizeof(block_t)),
4f4460c0 1267 GFP_NOFS);
363cad7f
JK		 1268 if (!src_blkaddr)
1269 return -ENOMEM;
0a2aa8fb 1270
628b3d14 1271 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
9d2a789c 1272 array_size(olen, sizeof(int)),
4f4460c0 1273 GFP_NOFS);
363cad7f
JK		 1274 if (!do_replace) {
1275 kvfree(src_blkaddr);
1276 return -ENOMEM;
1277 }
0a2aa8fb 1278
363cad7f
JK		 1279 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1280 do_replace, src, olen);
1281 if (ret)
1282 goto roll_back;
0a2aa8fb 1283
363cad7f
JK		 1284 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1285 do_replace, src, dst, olen, full);
1286 if (ret)
1287 goto roll_back;
1288
1289 src += olen;
1290 dst += olen;
1291 len -= olen;
1292
1293 kvfree(src_blkaddr);
1294 kvfree(do_replace);
1295 }
0a2aa8fb
JK		 1296 return 0;
1297
1298roll_back:
9fd62605 1299 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
0a2aa8fb
JK		 1300 kvfree(src_blkaddr);
1301 kvfree(do_replace);
6e2c64ad
JK		 1302 return ret;
1303}
b4ace337 1304
6f8d4455 1305static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
6e2c64ad
JK		 1306{
1307 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f91108b8 1308 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
6f8d4455
JK		 1309 pgoff_t start = offset >> PAGE_SHIFT;
1310 pgoff_t end = (offset + len) >> PAGE_SHIFT;
0a2aa8fb 1311 int ret;
6e2c64ad 1312
0a2aa8fb 1313 f2fs_balance_fs(sbi, true);
5f281fab 1314
6f8d4455
JK		 1315 /* avoid gc operation during block exchange */
1316 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1317 down_write(&F2FS_I(inode)->i_mmap_sem);
5f281fab 1318
6f8d4455
JK		 1319 f2fs_lock_op(sbi);
1320 f2fs_drop_extent_tree(inode);
1321 truncate_pagecache(inode, offset);
0a2aa8fb
JK		 1322 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1323 f2fs_unlock_op(sbi);
6f8d4455
JK		 1324
1325 up_write(&F2FS_I(inode)->i_mmap_sem);
1326 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
b4ace337
CY		 1327 return ret;
1328}
1329
1330static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1331{
b4ace337
CY		 1332 loff_t new_size;
1333 int ret;
1334
b4ace337
CY		 1335 if (offset + len >= i_size_read(inode))
1336 return -EINVAL;
1337
1338 /* collapse range should be aligned to block size of f2fs. */
1339 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1340 return -EINVAL;
1341
b9d777b8
JK		 1342 ret = f2fs_convert_inline_inode(inode);
1343 if (ret)
1344 return ret;
97a7b2c2 1345
b4ace337
CY		 1346 /* write out all dirty pages from offset */
1347 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1348 if (ret)
6f8d4455 1349 return ret;
b4ace337 1350
6f8d4455 1351 ret = f2fs_do_collapse(inode, offset, len);
b4ace337 1352 if (ret)
6f8d4455 1353 return ret;
b4ace337 1354
6e2c64ad 1355 /* write out all moved pages, if possible */
6f8d4455 1356 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1357 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1358 truncate_pagecache(inode, offset);
1359
b4ace337 1360 new_size = i_size_read(inode) - len;
c42d28ce 1361 ret = f2fs_truncate_blocks(inode, new_size, true);
6f8d4455 1362 up_write(&F2FS_I(inode)->i_mmap_sem);
b4ace337 1363 if (!ret)
fc9581c8 1364 f2fs_i_size_write(inode, new_size);
b4ace337
CY		 1365 return ret;
1366}
1367
6e961949
CY		 1368static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1369 pgoff_t end)
1370{
1371 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1372 pgoff_t index = start;
1373 unsigned int ofs_in_node = dn->ofs_in_node;
1374 blkcnt_t count = 0;
1375 int ret;
1376
1377 for (; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1378 if (f2fs_data_blkaddr(dn) == NULL_ADDR)
6e961949
CY		 1379 count++;
1380 }
1381
1382 dn->ofs_in_node = ofs_in_node;
4d57b86d 1383 ret = f2fs_reserve_new_blocks(dn, count);
6e961949
CY		 1384 if (ret)
1385 return ret;
1386
1387 dn->ofs_in_node = ofs_in_node;
1388 for (index = start; index < end; index++, dn->ofs_in_node++) {
a2ced1ce 1389 dn->data_blkaddr = f2fs_data_blkaddr(dn);
6e961949 1390 /*
4d57b86d 1391 * f2fs_reserve_new_blocks will not guarantee entire block
6e961949
CY		 1392 * allocation.
1393 */
1394 if (dn->data_blkaddr == NULL_ADDR) {
1395 ret = -ENOSPC;
1396 break;
1397 }
1398 if (dn->data_blkaddr != NEW_ADDR) {
4d57b86d 1399 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
6e961949 1400 dn->data_blkaddr = NEW_ADDR;
4d57b86d 1401 f2fs_set_data_blkaddr(dn);
6e961949
CY		 1402 }
1403 }
1404
1405 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1406
1407 return ret;
1408}
1409
75cd4e09
CY		 1410static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1411 int mode)
1412{
1413 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1414 struct address_space *mapping = inode->i_mapping;
1415 pgoff_t index, pg_start, pg_end;
1416 loff_t new_size = i_size_read(inode);
1417 loff_t off_start, off_end;
1418 int ret = 0;
1419
75cd4e09
CY		 1420 ret = inode_newsize_ok(inode, (len + offset));
1421 if (ret)
1422 return ret;
1423
b9d777b8
JK		 1424 ret = f2fs_convert_inline_inode(inode);
1425 if (ret)
1426 return ret;
75cd4e09
CY		 1427
1428 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1429 if (ret)
6f8d4455 1430 return ret;
75cd4e09 1431
09cbfeaf
KS		 1432 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1433 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
75cd4e09 1434
09cbfeaf
KS		 1435 off_start = offset & (PAGE_SIZE - 1);
1436 off_end = (offset + len) & (PAGE_SIZE - 1);
75cd4e09
CY		 1437
1438 if (pg_start == pg_end) {
6394328a
CY		 1439 ret = fill_zero(inode, pg_start, off_start,
1440 off_end - off_start);
1441 if (ret)
6f8d4455 1442 return ret;
6394328a 1443
75cd4e09
CY		 1444 new_size = max_t(loff_t, new_size, offset + len);
1445 } else {
1446 if (off_start) {
6394328a 1447 ret = fill_zero(inode, pg_start++, off_start,
09cbfeaf 1448 PAGE_SIZE - off_start);
6394328a 1449 if (ret)
6f8d4455 1450 return ret;
6394328a 1451
75cd4e09 1452 new_size = max_t(loff_t, new_size,
09cbfeaf 1453 (loff_t)pg_start << PAGE_SHIFT);
75cd4e09
CY		 1454 }
1455
6e961949 1456 for (index = pg_start; index < pg_end;) {
75cd4e09 1457 struct dnode_of_data dn;
6e961949
CY		 1458 unsigned int end_offset;
1459 pgoff_t end;
75cd4e09 1460
c7079853 1461 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
6f8d4455 1462 down_write(&F2FS_I(inode)->i_mmap_sem);
c7079853
CY		 1463
1464 truncate_pagecache_range(inode,
1465 (loff_t)index << PAGE_SHIFT,
1466 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1467
75cd4e09
CY		 1468 f2fs_lock_op(sbi);
1469
6e961949 1470 set_new_dnode(&dn, inode, NULL, NULL, 0);
4d57b86d 1471 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
75cd4e09
CY		 1472 if (ret) {
1473 f2fs_unlock_op(sbi);
6f8d4455 1474 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853 1475 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
75cd4e09
CY		 1476 goto out;
1477 }
1478
6e961949
CY		 1479 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1480 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1481
1482 ret = f2fs_do_zero_range(&dn, index, end);
75cd4e09 1483 f2fs_put_dnode(&dn);
c7079853 1484
75cd4e09 1485 f2fs_unlock_op(sbi);
6f8d4455 1486 up_write(&F2FS_I(inode)->i_mmap_sem);
c7079853 1487 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
9434fcde
CY		 1488
1489 f2fs_balance_fs(sbi, dn.node_changed);
1490
6e961949
CY		 1491 if (ret)
1492 goto out;
75cd4e09 1493
6e961949 1494 index = end;
75cd4e09 1495 new_size = max_t(loff_t, new_size,
6e961949 1496 (loff_t)index << PAGE_SHIFT);
75cd4e09
CY		 1497 }
1498
1499 if (off_end) {
6394328a
CY		 1500 ret = fill_zero(inode, pg_end, 0, off_end);
1501 if (ret)
1502 goto out;
1503
75cd4e09
CY		 1504 new_size = max_t(loff_t, new_size, offset + len);
1505 }
1506 }
1507
1508out:
17cd07ae
CY		 1509 if (new_size > i_size_read(inode)) {
1510 if (mode & FALLOC_FL_KEEP_SIZE)
1511 file_set_keep_isize(inode);
1512 else
1513 f2fs_i_size_write(inode, new_size);
1514 }
75cd4e09
CY		 1515 return ret;
1516}
1517
f62185d0
CY		 1518static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1519{
1520 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
0a2aa8fb 1521 pgoff_t nr, pg_start, pg_end, delta, idx;
f62185d0 1522 loff_t new_size;
6e2c64ad 1523 int ret = 0;
f62185d0 1524
f62185d0 1525 new_size = i_size_read(inode) + len;
46e82fb1
KM		 1526 ret = inode_newsize_ok(inode, new_size);
1527 if (ret)
1528 return ret;
f62185d0
CY		 1529
1530 if (offset >= i_size_read(inode))
1531 return -EINVAL;
1532
1533 /* insert range should be aligned to block size of f2fs. */
1534 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1535 return -EINVAL;
1536
b9d777b8
JK		 1537 ret = f2fs_convert_inline_inode(inode);
1538 if (ret)
1539 return ret;
97a7b2c2 1540
2c4db1a6 1541 f2fs_balance_fs(sbi, true);
2a340760 1542
5a3a2d83 1543 down_write(&F2FS_I(inode)->i_mmap_sem);
c42d28ce 1544 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
6f8d4455 1545 up_write(&F2FS_I(inode)->i_mmap_sem);
f62185d0 1546 if (ret)
6f8d4455 1547 return ret;
f62185d0
CY		 1548
1549 /* write out all dirty pages from offset */
1550 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1551 if (ret)
6f8d4455 1552 return ret;
f62185d0 1553
09cbfeaf
KS		 1554 pg_start = offset >> PAGE_SHIFT;
1555 pg_end = (offset + len) >> PAGE_SHIFT;
f62185d0 1556 delta = pg_end - pg_start;
f91108b8 1557 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
0a2aa8fb 1558
6f8d4455
JK		 1559 /* avoid gc operation during block exchange */
1560 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1561 down_write(&F2FS_I(inode)->i_mmap_sem);
1562 truncate_pagecache(inode, offset);
1563
0a2aa8fb
JK		 1564 while (!ret && idx > pg_start) {
1565 nr = idx - pg_start;
1566 if (nr > delta)
1567 nr = delta;
1568 idx -= nr;
f62185d0 1569
f62185d0 1570 f2fs_lock_op(sbi);
5f281fab
JK		 1571 f2fs_drop_extent_tree(inode);
1572
0a2aa8fb
JK		 1573 ret = __exchange_data_block(inode, inode, idx,
1574 idx + delta, nr, false);
f62185d0
CY		 1575 f2fs_unlock_op(sbi);
1576 }
6f8d4455
JK		 1577 up_write(&F2FS_I(inode)->i_mmap_sem);
1578 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
f62185d0 1579
6e2c64ad 1580 /* write out all moved pages, if possible */
6f8d4455 1581 down_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1582 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1583 truncate_pagecache(inode, offset);
6f8d4455 1584 up_write(&F2FS_I(inode)->i_mmap_sem);
6e2c64ad
JK		 1585
1586 if (!ret)
fc9581c8 1587 f2fs_i_size_write(inode, new_size);
f62185d0
CY		 1588 return ret;
1589}
1590
fbfa2cc5
JK		 1591static int expand_inode_data(struct inode *inode, loff_t offset,
1592 loff_t len, int mode)
1593{
4081363f 1594 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d5097be5 1595 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
f9d6d059
CY		 1596 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1597 .m_may_create = true };
e12dd7bd 1598 pgoff_t pg_end;
fbfa2cc5 1599 loff_t new_size = i_size_read(inode);
e12dd7bd 1600 loff_t off_end;
a7de6086 1601 int err;
fbfa2cc5 1602
a7de6086
JK		 1603 err = inode_newsize_ok(inode, (len + offset));
1604 if (err)
1605 return err;
fbfa2cc5 1606
a7de6086
JK		 1607 err = f2fs_convert_inline_inode(inode);
1608 if (err)
1609 return err;
9e09fc85 1610
2c4db1a6 1611 f2fs_balance_fs(sbi, true);
2a340760 1612
e12dd7bd 1613 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
09cbfeaf 1614 off_end = (offset + len) & (PAGE_SIZE - 1);
fbfa2cc5 1615
e12dd7bd
JK		 1616 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
1617 map.m_len = pg_end - map.m_lblk;
1618 if (off_end)
1619 map.m_len++;
ead43275 1620
f5a53edc
JK		 1621 if (!map.m_len)
1622 return 0;
1623
1624 if (f2fs_is_pinned_file(inode)) {
1625 block_t len = (map.m_len >> sbi->log_blocks_per_seg) <<
1626 sbi->log_blocks_per_seg;
1627 block_t done = 0;
1628
1629 if (map.m_len % sbi->blocks_per_seg)
1630 len += sbi->blocks_per_seg;
1631
1632 map.m_len = sbi->blocks_per_seg;
1633next_alloc:
1634 if (has_not_enough_free_secs(sbi, 0,
1635 GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
fb24fea7 1636 down_write(&sbi->gc_lock);
f5a53edc
JK		 1637 err = f2fs_gc(sbi, true, false, NULL_SEGNO);
1638 if (err && err != -ENODATA && err != -EAGAIN)
1639 goto out_err;
1640 }
1641
1642 down_write(&sbi->pin_sem);
fd612648
DJ		 1643
1644 f2fs_lock_op(sbi);
d0b9e42a 1645 f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA_PINNED);
fd612648
DJ		 1646 f2fs_unlock_op(sbi);
1647
d0b9e42a 1648 map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f5a53edc 1649 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
d0b9e42a 1650
f5a53edc 1651 up_write(&sbi->pin_sem);
cad3836f 1652
f5a53edc
JK		 1653 done += map.m_len;
1654 len -= map.m_len;
1655 map.m_lblk += map.m_len;
1656 if (!err && len)
1657 goto next_alloc;
1658
1659 map.m_len = done;
1660 } else {
1661 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
1662 }
1663out_err:
a7de6086 1664 if (err) {
e12dd7bd 1665 pgoff_t last_off;
fbfa2cc5 1666
e12dd7bd 1667 if (!map.m_len)
a7de6086 1668 return err;
98397ff3 1669
e12dd7bd
JK		 1670 last_off = map.m_lblk + map.m_len - 1;
1671
1672 /* update new size to the failed position */
1061fd48 1673 new_size = (last_off == pg_end) ? offset + len :
e12dd7bd
JK		 1674 (loff_t)(last_off + 1) << PAGE_SHIFT;
1675 } else {
1676 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
fbfa2cc5
JK		 1677 }
1678
e8ed90a6
CY		 1679 if (new_size > i_size_read(inode)) {
1680 if (mode & FALLOC_FL_KEEP_SIZE)
1681 file_set_keep_isize(inode);
1682 else
1683 f2fs_i_size_write(inode, new_size);
1684 }
fbfa2cc5 1685
a7de6086 1686 return err;
fbfa2cc5
JK		 1687}
1688
1689static long f2fs_fallocate(struct file *file, int mode,
1690 loff_t offset, loff_t len)
1691{
6131ffaa 1692 struct inode *inode = file_inode(file);
587c0a42 1693 long ret = 0;
fbfa2cc5 1694
1f227a3e
JK		 1695 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1696 return -EIO;
00e09c0b
CY		 1697 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1698 return -ENOSPC;
4c8ff709
CY		 1699 if (!f2fs_is_compress_backend_ready(inode))
1700 return -EOPNOTSUPP;
1f227a3e 1701
c998012b
CY		 1702 /* f2fs only support ->fallocate for regular file */
1703 if (!S_ISREG(inode->i_mode))
1704 return -EINVAL;
1705
62230e0d 1706 if (IS_ENCRYPTED(inode) &&
f62185d0 1707 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
fcc85a4d
JK		 1708 return -EOPNOTSUPP;
1709
4c8ff709
CY		 1710 if (f2fs_compressed_file(inode) &&
1711 (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
1712 FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
1713 return -EOPNOTSUPP;
1714
b4ace337 1715 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
f62185d0
CY		 1716 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1717 FALLOC_FL_INSERT_RANGE))
fbfa2cc5
JK		 1718 return -EOPNOTSUPP;
1719
5955102c 1720 inode_lock(inode);
3375f696 1721
587c0a42
TY		 1722 if (mode & FALLOC_FL_PUNCH_HOLE) {
1723 if (offset >= inode->i_size)
1724 goto out;
1725
a66c7b2f 1726 ret = punch_hole(inode, offset, len);
b4ace337
CY		 1727 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1728 ret = f2fs_collapse_range(inode, offset, len);
75cd4e09
CY		 1729 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1730 ret = f2fs_zero_range(inode, offset, len, mode);
f62185d0
CY		 1731 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1732 ret = f2fs_insert_range(inode, offset, len);
b4ace337 1733 } else {
fbfa2cc5 1734 ret = expand_inode_data(inode, offset, len, mode);
b4ace337 1735 }
fbfa2cc5 1736
3af60a49 1737 if (!ret) {
078cd827 1738 inode->i_mtime = inode->i_ctime = current_time(inode);
7c45729a 1739 f2fs_mark_inode_dirty_sync(inode, false);
d0239e1b 1740 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3af60a49 1741 }
3375f696 1742
587c0a42 1743out:
5955102c 1744 inode_unlock(inode);
3375f696 1745
c01e2853 1746 trace_f2fs_fallocate(inode, mode, offset, len, ret);
fbfa2cc5
JK		 1747 return ret;
1748}
1749
1e84371f
JK		 1750static int f2fs_release_file(struct inode *inode, struct file *filp)
1751{
de5307e4
JK		 1752 /*
1753 * f2fs_relase_file is called at every close calls. So we should
1754 * not drop any inmemory pages by close called by other process.
1755 */
1756 if (!(filp->f_mode & FMODE_WRITE) ||
1757 atomic_read(&inode->i_writecount) != 1)
1758 return 0;
1759
1e84371f
JK		 1760 /* some remained atomic pages should discarded */
1761 if (f2fs_is_atomic_file(inode))
4d57b86d 1762 f2fs_drop_inmem_pages(inode);
1e84371f 1763 if (f2fs_is_volatile_file(inode)) {
91942321 1764 set_inode_flag(inode, FI_DROP_CACHE);
1e84371f 1765 filemap_fdatawrite(inode->i_mapping);
91942321 1766 clear_inode_flag(inode, FI_DROP_CACHE);
dfa74280
CY		 1767 clear_inode_flag(inode, FI_VOLATILE_FILE);
1768 stat_dec_volatile_write(inode);
1e84371f
JK		 1769 }
1770 return 0;
1771}
1772
7a10f017 1773static int f2fs_file_flush(struct file *file, fl_owner_t id)
fbfa2cc5 1774{
7a10f017
JK		 1775 struct inode *inode = file_inode(file);
1776
1777 /*
1778 * If the process doing a transaction is crashed, we should do
1779 * roll-back. Otherwise, other reader/write can see corrupted database
1780 * until all the writers close its file. Since this should be done
1781 * before dropping file lock, it needs to do in ->flush.
1782 */
1783 if (f2fs_is_atomic_file(inode) &&
1784 F2FS_I(inode)->inmem_task == current)
4d57b86d 1785 f2fs_drop_inmem_pages(inode);
7a10f017 1786 return 0;
fbfa2cc5
JK		 1787}
1788
36098557 1789static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
2c1d0305
CY		 1790{
1791 struct f2fs_inode_info *fi = F2FS_I(inode);
99eabb91
JK		 1792 u32 masked_flags = fi->i_flags & mask;
1793
1794 f2fs_bug_on(F2FS_I_SB(inode), (iflags & ~mask));
2c1d0305
CY		 1795
1796 /* Is it quota file? Do not allow user to mess with it */
1797 if (IS_NOQUOTA(inode))
1798 return -EPERM;
1799
99eabb91 1800 if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
2c2eb7a3
DR		 1801 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1802 return -EOPNOTSUPP;
1803 if (!f2fs_empty_dir(inode))
1804 return -ENOTEMPTY;
1805 }
1806
4c8ff709
CY		 1807 if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
1808 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
1809 return -EOPNOTSUPP;
1810 if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
1811 return -EINVAL;
1812 }
1813
99eabb91 1814 if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
aa576970 1815 if (masked_flags & F2FS_COMPR_FL) {
2536ac68
CY		 1816 if (f2fs_disable_compressed_file(inode))
1817 return -EINVAL;
1818 }
4c8ff709
CY		 1819 if (iflags & F2FS_NOCOMP_FL)
1820 return -EINVAL;
1821 if (iflags & F2FS_COMPR_FL) {
4c8ff709
CY		 1822 if (!f2fs_may_compress(inode))
1823 return -EINVAL;
1824
1825 set_compress_context(inode);
1826 }
1827 }
99eabb91
JK		 1828 if ((iflags ^ masked_flags) & F2FS_NOCOMP_FL) {
1829 if (masked_flags & F2FS_COMPR_FL)
4c8ff709
CY		 1830 return -EINVAL;
1831 }
1832
d5e5efa2 1833 fi->i_flags = iflags | (fi->i_flags & ~mask);
4c8ff709
CY		 1834 f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
1835 (fi->i_flags & F2FS_NOCOMP_FL));
2c1d0305 1836
59c84408 1837 if (fi->i_flags & F2FS_PROJINHERIT_FL)
2c1d0305
CY		 1838 set_inode_flag(inode, FI_PROJ_INHERIT);
1839 else
1840 clear_inode_flag(inode, FI_PROJ_INHERIT);
1841
1842 inode->i_ctime = current_time(inode);
1843 f2fs_set_inode_flags(inode);
b32e0190 1844 f2fs_mark_inode_dirty_sync(inode, true);
2c1d0305
CY		 1845 return 0;
1846}
1847
36098557
EB		 1848/* FS_IOC_GETFLAGS and FS_IOC_SETFLAGS support */
1849
1850/*
1851 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1852 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1853 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1854 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
1855 */
1856
1857static const struct {
1858 u32 iflag;
1859 u32 fsflag;
1860} f2fs_fsflags_map[] = {
4c8ff709 1861 { F2FS_COMPR_FL, FS_COMPR_FL },
36098557
EB		 1862 { F2FS_SYNC_FL, FS_SYNC_FL },
1863 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1864 { F2FS_APPEND_FL, FS_APPEND_FL },
1865 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1866 { F2FS_NOATIME_FL, FS_NOATIME_FL },
4c8ff709 1867 { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
36098557
EB		 1868 { F2FS_INDEX_FL, FS_INDEX_FL },
1869 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1870 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
2c2eb7a3 1871 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
36098557
EB		 1872};
1873
1874#define F2FS_GETTABLE_FS_FL ( \
4c8ff709 1875 FS_COMPR_FL | \
36098557
EB		 1876 FS_SYNC_FL | \
1877 FS_IMMUTABLE_FL | \
1878 FS_APPEND_FL | \
1879 FS_NODUMP_FL | \
1880 FS_NOATIME_FL | \
4c8ff709 1881 FS_NOCOMP_FL | \
36098557
EB		 1882 FS_INDEX_FL | \
1883 FS_DIRSYNC_FL | \
1884 FS_PROJINHERIT_FL | \
1885 FS_ENCRYPT_FL | \
1886 FS_INLINE_DATA_FL | \
95ae251f 1887 FS_NOCOW_FL | \
fbc246a1 1888 FS_VERITY_FL | \
2c2eb7a3 1889 FS_CASEFOLD_FL)
36098557
EB		 1890
1891#define F2FS_SETTABLE_FS_FL ( \
4c8ff709 1892 FS_COMPR_FL | \
36098557
EB		 1893 FS_SYNC_FL | \
1894 FS_IMMUTABLE_FL | \
1895 FS_APPEND_FL | \
1896 FS_NODUMP_FL | \
1897 FS_NOATIME_FL | \
4c8ff709 1898 FS_NOCOMP_FL | \
36098557 1899 FS_DIRSYNC_FL | \
2c2eb7a3
DR		 1900 FS_PROJINHERIT_FL | \
1901 FS_CASEFOLD_FL)
36098557
EB		 1902
1903/* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
1904static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
1905{
1906 u32 fsflags = 0;
1907 int i;
1908
1909 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1910 if (iflags & f2fs_fsflags_map[i].iflag)
1911 fsflags |= f2fs_fsflags_map[i].fsflag;
1912
1913 return fsflags;
1914}
1915
1916/* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
1917static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
1918{
1919 u32 iflags = 0;
1920 int i;
1921
1922 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1923 if (fsflags & f2fs_fsflags_map[i].fsflag)
1924 iflags |= f2fs_fsflags_map[i].iflag;
1925
1926 return iflags;
1927}
1928
1929static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
1930{
1931 struct inode *inode = file_inode(filp);
1932 struct f2fs_inode_info *fi = F2FS_I(inode);
1933 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1934
1935 if (IS_ENCRYPTED(inode))
1936 fsflags |= FS_ENCRYPT_FL;
95ae251f
EB		 1937 if (IS_VERITY(inode))
1938 fsflags |= FS_VERITY_FL;
36098557
EB		 1939 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
1940 fsflags |= FS_INLINE_DATA_FL;
1941 if (is_inode_flag_set(inode, FI_PIN_FILE))
1942 fsflags |= FS_NOCOW_FL;
1943
1944 fsflags &= F2FS_GETTABLE_FS_FL;
1945
1946 return put_user(fsflags, (int __user *)arg);
1947}
1948
52656e6c
JK		 1949static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
1950{
1951 struct inode *inode = file_inode(filp);
a1f32eec
EB		 1952 struct f2fs_inode_info *fi = F2FS_I(inode);
1953 u32 fsflags, old_fsflags;
36098557 1954 u32 iflags;
52656e6c 1955 int ret;
fbfa2cc5 1956
7fb17fe4
CY		 1957 if (!inode_owner_or_capable(inode))
1958 return -EACCES;
1959
36098557 1960 if (get_user(fsflags, (int __user *)arg))
7fb17fe4
CY		 1961 return -EFAULT;
1962
36098557
EB		 1963 if (fsflags & ~F2FS_GETTABLE_FS_FL)
1964 return -EOPNOTSUPP;
1965 fsflags &= F2FS_SETTABLE_FS_FL;
1966
1967 iflags = f2fs_fsflags_to_iflags(fsflags);
1968 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
1969 return -EOPNOTSUPP;
1970
52656e6c
JK		 1971 ret = mnt_want_write_file(filp);
1972 if (ret)
1973 return ret;
fbfa2cc5 1974
5955102c 1975 inode_lock(inode);
fbfa2cc5 1976
a1f32eec
EB		 1977 old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1978 ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
1979 if (ret)
1980 goto out;
1981
36098557
EB		 1982 ret = f2fs_setflags_common(inode, iflags,
1983 f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
a1f32eec 1984out:
a72d4b97 1985 inode_unlock(inode);
52656e6c
JK		 1986 mnt_drop_write_file(filp);
1987 return ret;
1988}
4b2fecc8 1989
d49f3e89
CY		 1990static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1991{
1992 struct inode *inode = file_inode(filp);
1993
1994 return put_user(inode->i_generation, (int __user *)arg);
1995}
1996
88b88a66
JK		 1997static int f2fs_ioc_start_atomic_write(struct file *filp)
1998{
1999 struct inode *inode = file_inode(filp);
743b620c
JK		 2000 struct f2fs_inode_info *fi = F2FS_I(inode);
2001 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
f4c9c743 2002 int ret;
88b88a66
JK		 2003
2004 if (!inode_owner_or_capable(inode))
2005 return -EACCES;
2006
e811898c
JK		 2007 if (!S_ISREG(inode->i_mode))
2008 return -EINVAL;
2009
038d0698
CY		 2010 if (filp->f_flags & O_DIRECT)
2011 return -EINVAL;
2012
7fb17fe4
CY		 2013 ret = mnt_want_write_file(filp);
2014 if (ret)
2015 return ret;
2016
0fac558b
CY		 2017 inode_lock(inode);
2018
4c8ff709
CY		 2019 f2fs_disable_compressed_file(inode);
2020
455e3a58
JK		 2021 if (f2fs_is_atomic_file(inode)) {
2022 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
2023 ret = -EINVAL;
7fb17fe4 2024 goto out;
455e3a58 2025 }
88b88a66 2026
f4c9c743
CY		 2027 ret = f2fs_convert_inline_inode(inode);
2028 if (ret)
7fb17fe4 2029 goto out;
88b88a66 2030
6f8d4455
JK		 2031 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
2032
31867b23
JK		 2033 /*
2034 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
2035 * f2fs_is_atomic_file.
2036 */
2037 if (get_dirty_pages(inode))
dcbb4c10
JP		 2038 f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
2039 inode->i_ino, get_dirty_pages(inode));
c27753d6 2040 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
6f8d4455
JK		 2041 if (ret) {
2042 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2043 goto out;
6f8d4455 2044 }
31867b23 2045
743b620c
JK		 2046 spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
2047 if (list_empty(&fi->inmem_ilist))
2048 list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
677017d1 2049 sbi->atomic_files++;
743b620c
JK		 2050 spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
2051
2052 /* add inode in inmem_list first and set atomic_file */
054afda9 2053 set_inode_flag(inode, FI_ATOMIC_FILE);
2ef79ecb 2054 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
6f8d4455 2055 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
684ca7e5 2056
6f8d4455 2057 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7a10f017 2058 F2FS_I(inode)->inmem_task = current;
26a28a0c 2059 stat_update_max_atomic_write(inode);
684ca7e5 2060out:
0fac558b 2061 inode_unlock(inode);
7fb17fe4 2062 mnt_drop_write_file(filp);
c27753d6 2063 return ret;
88b88a66
JK		 2064}
2065
2066static int f2fs_ioc_commit_atomic_write(struct file *filp)
2067{
2068 struct inode *inode = file_inode(filp);
2069 int ret;
2070
2071 if (!inode_owner_or_capable(inode))
2072 return -EACCES;
2073
2074 ret = mnt_want_write_file(filp);
2075 if (ret)
2076 return ret;
2077
6f8d4455 2078 f2fs_balance_fs(F2FS_I_SB(inode), true);
0fac558b 2079
6f8d4455 2080 inode_lock(inode);
1dc0f899 2081
b169c3c5
CY		 2082 if (f2fs_is_volatile_file(inode)) {
2083 ret = -EINVAL;
7fb17fe4 2084 goto err_out;
b169c3c5 2085 }
7fb17fe4 2086
6282adbf 2087 if (f2fs_is_atomic_file(inode)) {
4d57b86d 2088 ret = f2fs_commit_inmem_pages(inode);
5fe45743 2089 if (ret)
edb27dee 2090 goto err_out;
5fe45743 2091
26a28a0c 2092 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
743b620c
JK		 2093 if (!ret)
2094 f2fs_drop_inmem_pages(inode);
26a28a0c 2095 } else {
774e1b78 2096 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
6282adbf 2097 }
edb27dee 2098err_out:
2ef79ecb
CY		 2099 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
2100 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2101 ret = -EINVAL;
2102 }
0fac558b 2103 inode_unlock(inode);
88b88a66
JK		 2104 mnt_drop_write_file(filp);
2105 return ret;
2106}
2107
02a1335f
JK		 2108static int f2fs_ioc_start_volatile_write(struct file *filp)
2109{
2110 struct inode *inode = file_inode(filp);
f4c9c743 2111 int ret;
02a1335f
JK		 2112
2113 if (!inode_owner_or_capable(inode))
2114 return -EACCES;
2115
8ff0971f
CY		 2116 if (!S_ISREG(inode->i_mode))
2117 return -EINVAL;
2118
7fb17fe4
CY		 2119 ret = mnt_want_write_file(filp);
2120 if (ret)
2121 return ret;
2122
0fac558b
CY		 2123 inode_lock(inode);
2124
1e84371f 2125 if (f2fs_is_volatile_file(inode))
7fb17fe4 2126 goto out;
1e84371f 2127
f4c9c743
CY		 2128 ret = f2fs_convert_inline_inode(inode);
2129 if (ret)
7fb17fe4 2130 goto out;
b3d208f9 2131
648d50ba
CY		 2132 stat_inc_volatile_write(inode);
2133 stat_update_max_volatile_write(inode);
2134
91942321 2135 set_inode_flag(inode, FI_VOLATILE_FILE);
d0239e1b 2136 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2137out:
0fac558b 2138 inode_unlock(inode);
7fb17fe4
CY		 2139 mnt_drop_write_file(filp);
2140 return ret;
02a1335f
JK		 2141}
2142
1e84371f
JK		 2143static int f2fs_ioc_release_volatile_write(struct file *filp)
2144{
2145 struct inode *inode = file_inode(filp);
7fb17fe4 2146 int ret;
1e84371f
JK		 2147
2148 if (!inode_owner_or_capable(inode))
2149 return -EACCES;
2150
7fb17fe4
CY		 2151 ret = mnt_want_write_file(filp);
2152 if (ret)
2153 return ret;
2154
0fac558b
CY		 2155 inode_lock(inode);
2156
1e84371f 2157 if (!f2fs_is_volatile_file(inode))
7fb17fe4 2158 goto out;
1e84371f 2159
7fb17fe4
CY		 2160 if (!f2fs_is_first_block_written(inode)) {
2161 ret = truncate_partial_data_page(inode, 0, true);
2162 goto out;
2163 }
3c6c2beb 2164
7fb17fe4
CY		 2165 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
2166out:
0fac558b 2167 inode_unlock(inode);
7fb17fe4
CY		 2168 mnt_drop_write_file(filp);
2169 return ret;
1e84371f
JK		 2170}
2171
2172static int f2fs_ioc_abort_volatile_write(struct file *filp)
2173{
2174 struct inode *inode = file_inode(filp);
2175 int ret;
2176
2177 if (!inode_owner_or_capable(inode))
2178 return -EACCES;
2179
2180 ret = mnt_want_write_file(filp);
2181 if (ret)
2182 return ret;
2183
0fac558b
CY		 2184 inode_lock(inode);
2185
26dc3d44 2186 if (f2fs_is_atomic_file(inode))
4d57b86d 2187 f2fs_drop_inmem_pages(inode);
732d5648 2188 if (f2fs_is_volatile_file(inode)) {
91942321 2189 clear_inode_flag(inode, FI_VOLATILE_FILE);
648d50ba 2190 stat_dec_volatile_write(inode);
608514de 2191 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
732d5648 2192 }
de6a8ec9 2193
455e3a58
JK		 2194 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2195
0fac558b
CY		 2196 inode_unlock(inode);
2197
1e84371f 2198 mnt_drop_write_file(filp);
d0239e1b 2199 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1e84371f
JK		 2200 return ret;
2201}
2202
1abff93d
JK		 2203static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2204{
2205 struct inode *inode = file_inode(filp);
2206 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2207 struct super_block *sb = sbi->sb;
2208 __u32 in;
2a96d8ad 2209 int ret = 0;
1abff93d
JK		 2210
2211 if (!capable(CAP_SYS_ADMIN))
2212 return -EPERM;
2213
2214 if (get_user(in, (__u32 __user *)arg))
2215 return -EFAULT;
2216
60b2b4ee
ST		 2217 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2218 ret = mnt_want_write_file(filp);
8626441f
CY		 2219 if (ret) {
2220 if (ret == -EROFS) {
2221 ret = 0;
2222 f2fs_stop_checkpoint(sbi, false);
2223 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2224 trace_f2fs_shutdown(sbi, in, ret);
2225 }
60b2b4ee 2226 return ret;
8626441f 2227 }
60b2b4ee 2228 }
7fb17fe4 2229
1abff93d
JK		 2230 switch (in) {
2231 case F2FS_GOING_DOWN_FULLSYNC:
2232 sb = freeze_bdev(sb->s_bdev);
d027c484
CY		 2233 if (IS_ERR(sb)) {
2234 ret = PTR_ERR(sb);
2235 goto out;
2236 }
2237 if (sb) {
38f91ca8 2238 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2239 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d
JK		 2240 thaw_bdev(sb->s_bdev, sb);
2241 }
2242 break;
2243 case F2FS_GOING_DOWN_METASYNC:
2244 /* do checkpoint only */
d027c484
CY		 2245 ret = f2fs_sync_fs(sb, 1);
2246 if (ret)
2247 goto out;
38f91ca8 2248 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2249 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d
JK		 2250 break;
2251 case F2FS_GOING_DOWN_NOSYNC:
38f91ca8 2252 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2253 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
1abff93d 2254 break;
c912a829 2255 case F2FS_GOING_DOWN_METAFLUSH:
4d57b86d 2256 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
38f91ca8 2257 f2fs_stop_checkpoint(sbi, false);
83a3bfdb 2258 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
c912a829 2259 break;
0cd6d9b0
JK		 2260 case F2FS_GOING_DOWN_NEED_FSCK:
2261 set_sbi_flag(sbi, SBI_NEED_FSCK);
db610a64
JK		 2262 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2263 set_sbi_flag(sbi, SBI_IS_DIRTY);
0cd6d9b0
JK		 2264 /* do checkpoint only */
2265 ret = f2fs_sync_fs(sb, 1);
db610a64 2266 goto out;
1abff93d 2267 default:
7fb17fe4
CY		 2268 ret = -EINVAL;
2269 goto out;
1abff93d 2270 }
7950e9ac 2271
4d57b86d
CY		 2272 f2fs_stop_gc_thread(sbi);
2273 f2fs_stop_discard_thread(sbi);
7950e9ac 2274
4d57b86d 2275 f2fs_drop_discard_cmd(sbi);
7950e9ac
CY		 2276 clear_opt(sbi, DISCARD);
2277
d0239e1b 2278 f2fs_update_time(sbi, REQ_TIME);
7fb17fe4 2279out:
60b2b4ee
ST		 2280 if (in != F2FS_GOING_DOWN_FULLSYNC)
2281 mnt_drop_write_file(filp);
559e87c4
CY		 2282
2283 trace_f2fs_shutdown(sbi, in, ret);
2284
7fb17fe4 2285 return ret;
1abff93d
JK		 2286}
2287
52656e6c
JK		 2288static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2289{
2290 struct inode *inode = file_inode(filp);
2291 struct super_block *sb = inode->i_sb;
2292 struct request_queue *q = bdev_get_queue(sb->s_bdev);
2293 struct fstrim_range range;
2294 int ret;
4b2fecc8 2295
52656e6c
JK		 2296 if (!capable(CAP_SYS_ADMIN))
2297 return -EPERM;
4b2fecc8 2298
7d20c8ab 2299 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
52656e6c 2300 return -EOPNOTSUPP;
4b2fecc8 2301
52656e6c
JK		 2302 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2303 sizeof(range)))
2304 return -EFAULT;
4b2fecc8 2305
7fb17fe4
CY		 2306 ret = mnt_want_write_file(filp);
2307 if (ret)
2308 return ret;
2309
52656e6c
JK		 2310 range.minlen = max((unsigned int)range.minlen,
2311 q->limits.discard_granularity);
2312 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
7fb17fe4 2313 mnt_drop_write_file(filp);
52656e6c
JK		 2314 if (ret < 0)
2315 return ret;
4b2fecc8 2316
52656e6c
JK		 2317 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2318 sizeof(range)))
2319 return -EFAULT;
d0239e1b 2320 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
52656e6c
JK		 2321 return 0;
2322}
2323
f424f664
JK		 2324static bool uuid_is_nonzero(__u8 u[16])
2325{
2326 int i;
2327
2328 for (i = 0; i < 16; i++)
2329 if (u[i])
2330 return true;
2331 return false;
2332}
2333
2334static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2335{
f424f664
JK		 2336 struct inode *inode = file_inode(filp);
2337
7beb01f7 2338 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
ead710b7
CY		 2339 return -EOPNOTSUPP;
2340
d0239e1b 2341 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
7fb17fe4 2342
db717d8e 2343 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
f424f664
JK		 2344}
2345
2346static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2347{
7beb01f7 2348 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
ead710b7 2349 return -EOPNOTSUPP;
db717d8e 2350 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
f424f664
JK		 2351}
2352
2353static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2354{
2355 struct inode *inode = file_inode(filp);
2356 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2357 int err;
2358
7beb01f7 2359 if (!f2fs_sb_has_encrypt(sbi))
f424f664
JK		 2360 return -EOPNOTSUPP;
2361
f424f664
JK		 2362 err = mnt_want_write_file(filp);
2363 if (err)
2364 return err;
2365
846ae671 2366 down_write(&sbi->sb_lock);
d0d3f1b3
CY		 2367
2368 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2369 goto got_it;
2370
f424f664
JK		 2371 /* update superblock with uuid */
2372 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2373
c5bda1c8 2374 err = f2fs_commit_super(sbi, false);
f424f664
JK		 2375 if (err) {
2376 /* undo new data */
2377 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
d0d3f1b3 2378 goto out_err;
f424f664
JK		 2379 }
2380got_it:
2381 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2382 16))
d0d3f1b3
CY		 2383 err = -EFAULT;
2384out_err:
846ae671 2385 up_write(&sbi->sb_lock);
d0d3f1b3
CY		 2386 mnt_drop_write_file(filp);
2387 return err;
f424f664
JK		 2388}
2389
8ce589c7
EB		 2390static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
2391 unsigned long arg)
2392{
2393 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2394 return -EOPNOTSUPP;
2395
2396 return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
2397}
2398
2399static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
2400{
2401 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2402 return -EOPNOTSUPP;
2403
2404 return fscrypt_ioctl_add_key(filp, (void __user *)arg);
2405}
2406
2407static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
2408{
2409 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2410 return -EOPNOTSUPP;
2411
2412 return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
2413}
2414
2415static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
2416 unsigned long arg)
2417{
2418 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2419 return -EOPNOTSUPP;
2420
2421 return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
2422}
2423
2424static int f2fs_ioc_get_encryption_key_status(struct file *filp,
2425 unsigned long arg)
2426{
2427 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2428 return -EOPNOTSUPP;
2429
2430 return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
2431}
2432
ee446e1a
EB		 2433static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
2434{
2435 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2436 return -EOPNOTSUPP;
2437
2438 return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
2439}
2440
c1c1b583
CY		 2441static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2442{
2443 struct inode *inode = file_inode(filp);
2444 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
d530d4d8 2445 __u32 sync;
7fb17fe4 2446 int ret;
c1c1b583
CY		 2447
2448 if (!capable(CAP_SYS_ADMIN))
2449 return -EPERM;
2450
d530d4d8 2451 if (get_user(sync, (__u32 __user *)arg))
c1c1b583
CY		 2452 return -EFAULT;
2453
d530d4d8
CY		 2454 if (f2fs_readonly(sbi->sb))
2455 return -EROFS;
c1c1b583 2456
7fb17fe4
CY		 2457 ret = mnt_want_write_file(filp);
2458 if (ret)
2459 return ret;
2460
d530d4d8 2461 if (!sync) {
fb24fea7 2462 if (!down_write_trylock(&sbi->gc_lock)) {
7fb17fe4
CY		 2463 ret = -EBUSY;
2464 goto out;
2465 }
d530d4d8 2466 } else {
fb24fea7 2467 down_write(&sbi->gc_lock);
c1c1b583
CY		 2468 }
2469
e066b83c 2470 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
7fb17fe4
CY		 2471out:
2472 mnt_drop_write_file(filp);
2473 return ret;
c1c1b583
CY		 2474}
2475
34dc77ad
JK		 2476static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2477{
2478 struct inode *inode = file_inode(filp);
2479 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2480 struct f2fs_gc_range range;
2481 u64 end;
2482 int ret;
2483
2484 if (!capable(CAP_SYS_ADMIN))
2485 return -EPERM;
2486
2487 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2488 sizeof(range)))
2489 return -EFAULT;
2490
2491 if (f2fs_readonly(sbi->sb))
2492 return -EROFS;
2493
b82f6e34 2494 end = range.start + range.len;
fbbf7799
ST		 2495 if (end < range.start || range.start < MAIN_BLKADDR(sbi) ||
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
JK		 2503do_more:
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
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 }
67b0e42b 2519 range.start += BLKS_PER_SEC(sbi);
34dc77ad
JK		 2520 if (range.start <= end)
2521 goto do_more;
2522out:
2523 mnt_drop_write_file(filp);
2524 return ret;
2525}
2526
059c0648 2527static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
456b88e4
CY		 2528{
2529 struct inode *inode = file_inode(filp);
2530 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
7fb17fe4 2531 int ret;
456b88e4
CY		 2532
2533 if (!capable(CAP_SYS_ADMIN))
2534 return -EPERM;
2535
2536 if (f2fs_readonly(sbi->sb))
2537 return -EROFS;
2538
4354994f 2539 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
dcbb4c10 2540 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
4354994f
DR		 2541 return -EINVAL;
2542 }
2543
7fb17fe4
CY		 2544 ret = mnt_want_write_file(filp);
2545 if (ret)
2546 return ret;
2547
2548 ret = f2fs_sync_fs(sbi->sb, 1);
2549
2550 mnt_drop_write_file(filp);
2551 return ret;
456b88e4
CY		 2552}
2553
d323d005
CY		 2554static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2555 struct file *filp,
2556 struct f2fs_defragment *range)
2557{
2558 struct inode *inode = file_inode(filp);
f3d98e74 2559 struct f2fs_map_blocks map = { .m_next_extent = NULL,
f4f0b677
JZ		 2560 .m_seg_type = NO_CHECK_TYPE ,
2561 .m_may_create = false };
1061fd48 2562 struct extent_info ei = {0, 0, 0};
f3d98e74 2563 pgoff_t pg_start, pg_end, next_pgofs;
3519e3f9 2564 unsigned int blk_per_seg = sbi->blocks_per_seg;
d323d005 2565 unsigned int total = 0, sec_num;
d323d005
CY		 2566 block_t blk_end = 0;
2567 bool fragmented = false;
2568 int err;
2569
2570 /* if in-place-update policy is enabled, don't waste time here */
4d57b86d 2571 if (f2fs_should_update_inplace(inode, NULL))
d323d005
CY		 2572 return -EINVAL;
2573
09cbfeaf
KS		 2574 pg_start = range->start >> PAGE_SHIFT;
2575 pg_end = (range->start + range->len) >> PAGE_SHIFT;
d323d005 2576
2c4db1a6 2577 f2fs_balance_fs(sbi, true);
d323d005 2578
5955102c 2579 inode_lock(inode);
d323d005
CY		 2580
2581 /* writeback all dirty pages in the range */
2582 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
d8fe4f0e 2583 range->start + range->len - 1);
d323d005
CY		 2584 if (err)
2585 goto out;
2586
2587 /*
2588 * lookup mapping info in extent cache, skip defragmenting if physical
2589 * block addresses are continuous.
2590 */
2591 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2592 if (ei.fofs + ei.len >= pg_end)
2593 goto out;
2594 }
2595
2596 map.m_lblk = pg_start;
f3d98e74 2597 map.m_next_pgofs = &next_pgofs;
d323d005
CY		 2598
2599 /*
2600 * lookup mapping info in dnode page cache, skip defragmenting if all
2601 * physical block addresses are continuous even if there are hole(s)
2602 * in logical blocks.
2603 */
2604 while (map.m_lblk < pg_end) {
a1c1e9b7 2605 map.m_len = pg_end - map.m_lblk;
f2220c7f 2606 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2607 if (err)
2608 goto out;
2609
2610 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2611 map.m_lblk = next_pgofs;
d323d005
CY		 2612 continue;
2613 }
2614
25a912e5 2615 if (blk_end && blk_end != map.m_pblk)
d323d005 2616 fragmented = true;
25a912e5
CY		 2617
2618 /* record total count of block that we're going to move */
2619 total += map.m_len;
2620
d323d005
CY		 2621 blk_end = map.m_pblk + map.m_len;
2622
2623 map.m_lblk += map.m_len;
d323d005
CY		 2624 }
2625
d3a1a0e1
CY		 2626 if (!fragmented) {
2627 total = 0;
d323d005 2628 goto out;
d3a1a0e1 2629 }
d323d005 2630
f91108b8 2631 sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
d323d005
CY		 2632
2633 /*
2634 * make sure there are enough free section for LFS allocation, this can
2635 * avoid defragment running in SSR mode when free section are allocated
2636 * intensively
2637 */
7f3037a5 2638 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
d323d005
CY		 2639 err = -EAGAIN;
2640 goto out;
2641 }
2642
25a912e5
CY		 2643 map.m_lblk = pg_start;
2644 map.m_len = pg_end - pg_start;
2645 total = 0;
2646
d323d005
CY		 2647 while (map.m_lblk < pg_end) {
2648 pgoff_t idx;
2649 int cnt = 0;
2650
2651do_map:
a1c1e9b7 2652 map.m_len = pg_end - map.m_lblk;
f2220c7f 2653 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
d323d005
CY		 2654 if (err)
2655 goto clear_out;
2656
2657 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
f3d98e74 2658 map.m_lblk = next_pgofs;
d3a1a0e1 2659 goto check;
d323d005
CY		 2660 }
2661
91942321 2662 set_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2663
2664 idx = map.m_lblk;
2665 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2666 struct page *page;
2667
4d57b86d 2668 page = f2fs_get_lock_data_page(inode, idx, true);
d323d005
CY		 2669 if (IS_ERR(page)) {
2670 err = PTR_ERR(page);
2671 goto clear_out;
2672 }
2673
2674 set_page_dirty(page);
2675 f2fs_put_page(page, 1);
2676
2677 idx++;
2678 cnt++;
2679 total++;
2680 }
2681
2682 map.m_lblk = idx;
d3a1a0e1
CY		 2683check:
2684 if (map.m_lblk < pg_end && cnt < blk_per_seg)
d323d005
CY		 2685 goto do_map;
2686
91942321 2687 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005
CY		 2688
2689 err = filemap_fdatawrite(inode->i_mapping);
2690 if (err)
2691 goto out;
2692 }
2693clear_out:
91942321 2694 clear_inode_flag(inode, FI_DO_DEFRAG);
d323d005 2695out:
5955102c 2696 inode_unlock(inode);
d323d005 2697 if (!err)
09cbfeaf 2698 range->len = (u64)total << PAGE_SHIFT;
d323d005
CY		 2699 return err;
2700}
2701
2702static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2703{
2704 struct inode *inode = file_inode(filp);
2705 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2706 struct f2fs_defragment range;
2707 int err;
2708
2709 if (!capable(CAP_SYS_ADMIN))
2710 return -EPERM;
2711
7eab0c0d 2712 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
d323d005
CY		 2713 return -EINVAL;
2714
d7563861
KM		 2715 if (f2fs_readonly(sbi->sb))
2716 return -EROFS;
d323d005
CY		 2717
2718 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
d7563861
KM		 2719 sizeof(range)))
2720 return -EFAULT;
d323d005
CY		 2721
2722 /* verify alignment of offset & size */
d7563861
KM		 2723 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2724 return -EINVAL;
d323d005 2725
1941d7bc 2726 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
d7563861
KM		 2727 sbi->max_file_blocks))
2728 return -EINVAL;
2729
2730 err = mnt_want_write_file(filp);
2731 if (err)
2732 return err;
1941d7bc 2733
d323d005 2734 err = f2fs_defragment_range(sbi, filp, &range);
d7563861
KM		 2735 mnt_drop_write_file(filp);
2736
d0239e1b 2737 f2fs_update_time(sbi, REQ_TIME);
d323d005 2738 if (err < 0)
d7563861 2739 return err;
d323d005
CY		 2740
2741 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2742 sizeof(range)))
d7563861
KM		 2743 return -EFAULT;
2744
2745 return 0;
d323d005
CY		 2746}
2747
4dd6f977
JK		 2748static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2749 struct file *file_out, loff_t pos_out, size_t len)
2750{
2751 struct inode *src = file_inode(file_in);
2752 struct inode *dst = file_inode(file_out);
2753 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2754 size_t olen = len, dst_max_i_size = 0;
2755 size_t dst_osize;
2756 int ret;
2757
2758 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2759 src->i_sb != dst->i_sb)
2760 return -EXDEV;
2761
2762 if (unlikely(f2fs_readonly(src->i_sb)))
2763 return -EROFS;
2764
fe8494bf
CY		 2765 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2766 return -EINVAL;
4dd6f977 2767
62230e0d 2768 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
4dd6f977
JK		 2769 return -EOPNOTSUPP;
2770
aad1383c
DR		 2771 if (pos_out < 0 || pos_in < 0)
2772 return -EINVAL;
2773
d95fd91c
FL		 2774 if (src == dst) {
2775 if (pos_in == pos_out)
2776 return 0;
2777 if (pos_out > pos_in && pos_out < pos_in + len)
2778 return -EINVAL;
2779 }
2780
4dd6f977 2781 inode_lock(src);
20a3d61d 2782 if (src != dst) {
bb06664a
CY		 2783 ret = -EBUSY;
2784 if (!inode_trylock(dst))
2785 goto out;
20a3d61d 2786 }
4dd6f977
JK		 2787
2788 ret = -EINVAL;
2789 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2790 goto out_unlock;
2791 if (len == 0)
2792 olen = len = src->i_size - pos_in;
2793 if (pos_in + len == src->i_size)
2794 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2795 if (len == 0) {
2796 ret = 0;
2797 goto out_unlock;
2798 }
2799
2800 dst_osize = dst->i_size;
2801 if (pos_out + olen > dst->i_size)
2802 dst_max_i_size = pos_out + olen;
2803
2804 /* verify the end result is block aligned */
2805 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2806 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2807 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2808 goto out_unlock;
2809
2810 ret = f2fs_convert_inline_inode(src);
2811 if (ret)
2812 goto out_unlock;
2813
2814 ret = f2fs_convert_inline_inode(dst);
2815 if (ret)
2816 goto out_unlock;
2817
2818 /* write out all dirty pages from offset */
2819 ret = filemap_write_and_wait_range(src->i_mapping,
2820 pos_in, pos_in + len);
2821 if (ret)
2822 goto out_unlock;
2823
2824 ret = filemap_write_and_wait_range(dst->i_mapping,
2825 pos_out, pos_out + len);
2826 if (ret)
2827 goto out_unlock;
2828
2829 f2fs_balance_fs(sbi, true);
6f8d4455
JK		 2830
2831 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2832 if (src != dst) {
2833 ret = -EBUSY;
2834 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2835 goto out_src;
2836 }
2837
4dd6f977 2838 f2fs_lock_op(sbi);
61e4da11
FL		 2839 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2840 pos_out >> F2FS_BLKSIZE_BITS,
2841 len >> F2FS_BLKSIZE_BITS, false);
4dd6f977
JK		 2842
2843 if (!ret) {
2844 if (dst_max_i_size)
2845 f2fs_i_size_write(dst, dst_max_i_size);
2846 else if (dst_osize != dst->i_size)
2847 f2fs_i_size_write(dst, dst_osize);
2848 }
2849 f2fs_unlock_op(sbi);
6f8d4455
JK		 2850
2851 if (src != dst)
b2532c69 2852 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
6f8d4455
JK		 2853out_src:
2854 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2855out_unlock:
2856 if (src != dst)
4dd6f977 2857 inode_unlock(dst);
20a3d61d 2858out:
4dd6f977
JK		 2859 inode_unlock(src);
2860 return ret;
2861}
2862
2863static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2864{
2865 struct f2fs_move_range range;
2866 struct fd dst;
2867 int err;
2868
2869 if (!(filp->f_mode & FMODE_READ) ||
2870 !(filp->f_mode & FMODE_WRITE))
2871 return -EBADF;
2872
2873 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2874 sizeof(range)))
2875 return -EFAULT;
2876
2877 dst = fdget(range.dst_fd);
2878 if (!dst.file)
2879 return -EBADF;
2880
2881 if (!(dst.file->f_mode & FMODE_WRITE)) {
2882 err = -EBADF;
2883 goto err_out;
2884 }
2885
2886 err = mnt_want_write_file(filp);
2887 if (err)
2888 goto err_out;
2889
2890 err = f2fs_move_file_range(filp, range.pos_in, dst.file,
2891 range.pos_out, range.len);
2892
2893 mnt_drop_write_file(filp);
3cecfa5f
KM		 2894 if (err)
2895 goto err_out;
4dd6f977
JK		 2896
2897 if (copy_to_user((struct f2fs_move_range __user *)arg,
2898 &range, sizeof(range)))
2899 err = -EFAULT;
2900err_out:
2901 fdput(dst);
2902 return err;
2903}
2904
e066b83c
JK		 2905static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2906{
2907 struct inode *inode = file_inode(filp);
2908 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2909 struct sit_info *sm = SIT_I(sbi);
2910 unsigned int start_segno = 0, end_segno = 0;
2911 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2912 struct f2fs_flush_device range;
2913 int ret;
2914
2915 if (!capable(CAP_SYS_ADMIN))
2916 return -EPERM;
2917
2918 if (f2fs_readonly(sbi->sb))
2919 return -EROFS;
2920
4354994f
DR		 2921 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2922 return -EINVAL;
2923
e066b83c
JK		 2924 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2925 sizeof(range)))
2926 return -EFAULT;
2927
0916878d 2928 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2c70c5e3 2929 __is_large_section(sbi)) {
dcbb4c10
JP		 2930 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2931 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
e066b83c
JK		 2932 return -EINVAL;
2933 }
2934
2935 ret = mnt_want_write_file(filp);
2936 if (ret)
2937 return ret;
2938
2939 if (range.dev_num != 0)
2940 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2941 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2942
2943 start_segno = sm->last_victim[FLUSH_DEVICE];
2944 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2945 start_segno = dev_start_segno;
2946 end_segno = min(start_segno + range.segments, dev_end_segno);
2947
2948 while (start_segno < end_segno) {
fb24fea7 2949 if (!down_write_trylock(&sbi->gc_lock)) {
e066b83c
JK		 2950 ret = -EBUSY;
2951 goto out;
2952 }
2953 sm->last_victim[GC_CB] = end_segno + 1;
2954 sm->last_victim[GC_GREEDY] = end_segno + 1;
2955 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2956 ret = f2fs_gc(sbi, true, true, start_segno);
2957 if (ret == -EAGAIN)
2958 ret = 0;
2959 else if (ret < 0)
2960 break;
2961 start_segno++;
2962 }
2963out:
2964 mnt_drop_write_file(filp);
2965 return ret;
2966}
2967
e65ef207
JK		 2968static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2969{
2970 struct inode *inode = file_inode(filp);
2971 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2972
2973 /* Must validate to set it with SQLite behavior in Android. */
2974 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2975
2976 return put_user(sb_feature, (u32 __user *)arg);
2977}
e066b83c 2978
2c1d0305 2979#ifdef CONFIG_QUOTA
78130819
CY		 2980int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2981{
2982 struct dquot *transfer_to[MAXQUOTAS] = {};
2983 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2984 struct super_block *sb = sbi->sb;
2985 int err = 0;
2986
2987 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2988 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2989 err = __dquot_transfer(inode, transfer_to);
2990 if (err)
2991 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2992 dqput(transfer_to[PRJQUOTA]);
2993 }
2994 return err;
2995}
2996
2c1d0305
CY		 2997static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2998{
2999 struct inode *inode = file_inode(filp);
3000 struct f2fs_inode_info *fi = F2FS_I(inode);
3001 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2c1d0305
CY		 3002 struct page *ipage;
3003 kprojid_t kprojid;
3004 int err;
3005
7beb01f7 3006 if (!f2fs_sb_has_project_quota(sbi)) {
2c1d0305
CY		 3007 if (projid != F2FS_DEF_PROJID)
3008 return -EOPNOTSUPP;
3009 else
3010 return 0;
3011 }
3012
3013 if (!f2fs_has_extra_attr(inode))
3014 return -EOPNOTSUPP;
3015
3016 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
3017
3018 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
3019 return 0;
3020
2c1d0305 3021 err = -EPERM;
2c1d0305
CY		 3022 /* Is it quota file? Do not allow user to mess with it */
3023 if (IS_NOQUOTA(inode))
c8e92757 3024 return err;
2c1d0305 3025
4d57b86d 3026 ipage = f2fs_get_node_page(sbi, inode->i_ino);
c8e92757
WS		 3027 if (IS_ERR(ipage))
3028 return PTR_ERR(ipage);
2c1d0305
CY		 3029
3030 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
3031 i_projid)) {
3032 err = -EOVERFLOW;
3033 f2fs_put_page(ipage, 1);
c8e92757 3034 return err;
2c1d0305
CY		 3035 }
3036 f2fs_put_page(ipage, 1);
3037
c22aecd7
CY		 3038 err = dquot_initialize(inode);
3039 if (err)
c8e92757 3040 return err;
2c1d0305 3041
78130819
CY		 3042 f2fs_lock_op(sbi);
3043 err = f2fs_transfer_project_quota(inode, kprojid);
3044 if (err)
3045 goto out_unlock;
2c1d0305
CY		 3046
3047 F2FS_I(inode)->i_projid = kprojid;
3048 inode->i_ctime = current_time(inode);
2c1d0305 3049 f2fs_mark_inode_dirty_sync(inode, true);
78130819
CY		 3050out_unlock:
3051 f2fs_unlock_op(sbi);
2c1d0305
CY		 3052 return err;
3053}
3054#else
78130819
CY		 3055int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
3056{
3057 return 0;
3058}
3059
2c1d0305
CY		 3060static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
3061{
3062 if (projid != F2FS_DEF_PROJID)
3063 return -EOPNOTSUPP;
3064 return 0;
3065}
3066#endif
3067
36098557
EB		 3068/* FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR support */
3069
3070/*
3071 * To make a new on-disk f2fs i_flag gettable via FS_IOC_FSGETXATTR and settable
3072 * via FS_IOC_FSSETXATTR, add an entry for it to f2fs_xflags_map[], and add its
3073 * FS_XFLAG_* equivalent to F2FS_SUPPORTED_XFLAGS.
3074 */
3075
3076static const struct {
3077 u32 iflag;
3078 u32 xflag;
3079} f2fs_xflags_map[] = {
3080 { F2FS_SYNC_FL, FS_XFLAG_SYNC },
3081 { F2FS_IMMUTABLE_FL, FS_XFLAG_IMMUTABLE },
3082 { F2FS_APPEND_FL, FS_XFLAG_APPEND },
3083 { F2FS_NODUMP_FL, FS_XFLAG_NODUMP },
3084 { F2FS_NOATIME_FL, FS_XFLAG_NOATIME },
3085 { F2FS_PROJINHERIT_FL, FS_XFLAG_PROJINHERIT },
3086};
3087
3088#define F2FS_SUPPORTED_XFLAGS ( \
3089 FS_XFLAG_SYNC | \
3090 FS_XFLAG_IMMUTABLE | \
3091 FS_XFLAG_APPEND | \
3092 FS_XFLAG_NODUMP | \
3093 FS_XFLAG_NOATIME | \
3094 FS_XFLAG_PROJINHERIT)
3095
3096/* Convert f2fs on-disk i_flags to FS_IOC_FS{GET,SET}XATTR flags */
3097static inline u32 f2fs_iflags_to_xflags(u32 iflags)
3098{
3099 u32 xflags = 0;
3100 int i;
3101
3102 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3103 if (iflags & f2fs_xflags_map[i].iflag)
3104 xflags |= f2fs_xflags_map[i].xflag;
3105
2c1d0305
CY		 3106 return xflags;
3107}
3108
36098557
EB		 3109/* Convert FS_IOC_FS{GET,SET}XATTR flags to f2fs on-disk i_flags */
3110static inline u32 f2fs_xflags_to_iflags(u32 xflags)
2c1d0305 3111{
36098557
EB		 3112 u32 iflags = 0;
3113 int i;
2c1d0305 3114
36098557
EB		 3115 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3116 if (xflags & f2fs_xflags_map[i].xflag)
3117 iflags |= f2fs_xflags_map[i].iflag;
2c1d0305
CY		 3118
3119 return iflags;
3120}
3121
6fc93c4e 3122static void f2fs_fill_fsxattr(struct inode *inode, struct fsxattr *fa)
2c1d0305 3123{
2c1d0305 3124 struct f2fs_inode_info *fi = F2FS_I(inode);
2c1d0305 3125
6fc93c4e 3126 simple_fill_fsxattr(fa, f2fs_iflags_to_xflags(fi->i_flags));
2c1d0305 3127
7beb01f7 3128 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
6fc93c4e 3129 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
2c1d0305
CY		 3130}
3131
6fc93c4e 3132static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
c8e92757 3133{
6fc93c4e
EB		 3134 struct inode *inode = file_inode(filp);
3135 struct fsxattr fa;
c8e92757 3136
6fc93c4e 3137 f2fs_fill_fsxattr(inode, &fa);
c8e92757 3138
6fc93c4e
EB		 3139 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
3140 return -EFAULT;
c8e92757
WS		 3141 return 0;
3142}
3143
2c1d0305
CY		 3144static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
3145{
3146 struct inode *inode = file_inode(filp);
6fc93c4e 3147 struct fsxattr fa, old_fa;
36098557 3148 u32 iflags;
2c1d0305
CY		 3149 int err;
3150
3151 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
3152 return -EFAULT;
3153
3154 /* Make sure caller has proper permission */
3155 if (!inode_owner_or_capable(inode))
3156 return -EACCES;
3157
36098557 3158 if (fa.fsx_xflags & ~F2FS_SUPPORTED_XFLAGS)
2c1d0305
CY		 3159 return -EOPNOTSUPP;
3160
36098557
EB		 3161 iflags = f2fs_xflags_to_iflags(fa.fsx_xflags);
3162 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
2c1d0305
CY		 3163 return -EOPNOTSUPP;
3164
3165 err = mnt_want_write_file(filp);
3166 if (err)
3167 return err;
3168
3169 inode_lock(inode);
6fc93c4e
EB		 3170
3171 f2fs_fill_fsxattr(inode, &old_fa);
3172 err = vfs_ioc_fssetxattr_check(inode, &old_fa, &fa);
c8e92757
WS		 3173 if (err)
3174 goto out;
6fc93c4e 3175
36098557
EB		 3176 err = f2fs_setflags_common(inode, iflags,
3177 f2fs_xflags_to_iflags(F2FS_SUPPORTED_XFLAGS));
2c1d0305 3178 if (err)
c8e92757 3179 goto out;
2c1d0305
CY		 3180
3181 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
c8e92757
WS		 3182out:
3183 inode_unlock(inode);
3184 mnt_drop_write_file(filp);
3185 return err;
2c1d0305 3186}
e066b83c 3187
1ad71a27
JK		 3188int f2fs_pin_file_control(struct inode *inode, bool inc)
3189{
3190 struct f2fs_inode_info *fi = F2FS_I(inode);
3191 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3192
3193 /* Use i_gc_failures for normal file as a risk signal. */
3194 if (inc)
2ef79ecb
CY		 3195 f2fs_i_gc_failures_write(inode,
3196 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
1ad71a27 3197
2ef79ecb 3198 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
dcbb4c10
JP		 3199 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
3200 __func__, inode->i_ino,
3201 fi->i_gc_failures[GC_FAILURE_PIN]);
1ad71a27
JK		 3202 clear_inode_flag(inode, FI_PIN_FILE);
3203 return -EAGAIN;
3204 }
3205 return 0;
3206}
3207
3208static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
3209{
3210 struct inode *inode = file_inode(filp);
3211 __u32 pin;
3212 int ret = 0;
3213
1ad71a27
JK		 3214 if (get_user(pin, (__u32 __user *)arg))
3215 return -EFAULT;
3216
3217 if (!S_ISREG(inode->i_mode))
3218 return -EINVAL;
3219
3220 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
3221 return -EROFS;
3222
3223 ret = mnt_want_write_file(filp);
3224 if (ret)
3225 return ret;
3226
3227 inode_lock(inode);
3228
4d57b86d 3229 if (f2fs_should_update_outplace(inode, NULL)) {
bb9e3bb8
CY		 3230 ret = -EINVAL;
3231 goto out;
3232 }
3233
1ad71a27
JK		 3234 if (!pin) {
3235 clear_inode_flag(inode, FI_PIN_FILE);
30933364 3236 f2fs_i_gc_failures_write(inode, 0);
1ad71a27
JK		 3237 goto done;
3238 }
3239
3240 if (f2fs_pin_file_control(inode, false)) {
3241 ret = -EAGAIN;
3242 goto out;
3243 }
4c8ff709 3244
1ad71a27
JK		 3245 ret = f2fs_convert_inline_inode(inode);
3246 if (ret)
3247 goto out;
3248
4c8ff709
CY		 3249 if (f2fs_disable_compressed_file(inode)) {
3250 ret = -EOPNOTSUPP;
3251 goto out;
3252 }
3253
1ad71a27 3254 set_inode_flag(inode, FI_PIN_FILE);
2ef79ecb 3255 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3256done:
3257 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3258out:
3259 inode_unlock(inode);
3260 mnt_drop_write_file(filp);
3261 return ret;
3262}
3263
3264static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3265{
3266 struct inode *inode = file_inode(filp);
3267 __u32 pin = 0;
3268
3269 if (is_inode_flag_set(inode, FI_PIN_FILE))
2ef79ecb 3270 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
1ad71a27
JK		 3271 return put_user(pin, (u32 __user *)arg);
3272}
3273
c4020b2d
CY		 3274int f2fs_precache_extents(struct inode *inode)
3275{
3276 struct f2fs_inode_info *fi = F2FS_I(inode);
3277 struct f2fs_map_blocks map;
3278 pgoff_t m_next_extent;
3279 loff_t end;
3280 int err;
3281
3282 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3283 return -EOPNOTSUPP;
3284
3285 map.m_lblk = 0;
3286 map.m_next_pgofs = NULL;
3287 map.m_next_extent = &m_next_extent;
3288 map.m_seg_type = NO_CHECK_TYPE;
f4f0b677 3289 map.m_may_create = false;
c4020b2d
CY		 3290 end = F2FS_I_SB(inode)->max_file_blocks;
3291
3292 while (map.m_lblk < end) {
3293 map.m_len = end - map.m_lblk;
3294
b2532c69 3295 down_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d 3296 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
b2532c69 3297 up_write(&fi->i_gc_rwsem[WRITE]);
c4020b2d
CY		 3298 if (err)
3299 return err;
3300
3301 map.m_lblk = m_next_extent;
3302 }
3303
3304 return err;
3305}
3306
3307static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3308{
3309 return f2fs_precache_extents(file_inode(filp));
3310}
3311
04f0b2ea
QS		 3312static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3313{
3314 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3315 __u64 block_count;
04f0b2ea
QS		 3316
3317 if (!capable(CAP_SYS_ADMIN))
3318 return -EPERM;
3319
3320 if (f2fs_readonly(sbi->sb))
3321 return -EROFS;
3322
3323 if (copy_from_user(&block_count, (void __user *)arg,
3324 sizeof(block_count)))
3325 return -EFAULT;
3326
b4b10061 3327 return f2fs_resize_fs(sbi, block_count);
04f0b2ea
QS		 3328}
3329
95ae251f
EB		 3330static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
3331{
3332 struct inode *inode = file_inode(filp);
3333
3334 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3335
3336 if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
3337 f2fs_warn(F2FS_I_SB(inode),
3338 "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem.\n",
3339 inode->i_ino);
3340 return -EOPNOTSUPP;
3341 }
3342
3343 return fsverity_ioctl_enable(filp, (const void __user *)arg);
3344}
3345
3346static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
3347{
3348 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3349 return -EOPNOTSUPP;
3350
3351 return fsverity_ioctl_measure(filp, (void __user *)arg);
3352}
3353
3357af8f 3354static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3355{
3356 struct inode *inode = file_inode(filp);
3357 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3358 char *vbuf;
3359 int count;
3360 int err = 0;
3361
3362 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3363 if (!vbuf)
3364 return -ENOMEM;
3365
3366 down_read(&sbi->sb_lock);
3367 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3368 ARRAY_SIZE(sbi->raw_super->volume_name),
3369 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3370 up_read(&sbi->sb_lock);
3371
3372 if (copy_to_user((char __user *)arg, vbuf,
3373 min(FSLABEL_MAX, count)))
3374 err = -EFAULT;
3375
3376 kvfree(vbuf);
3377 return err;
3378}
3379
3357af8f 3380static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
4507847c
CY		 3381{
3382 struct inode *inode = file_inode(filp);
3383 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3384 char *vbuf;
3385 int err = 0;
3386
3387 if (!capable(CAP_SYS_ADMIN))
3388 return -EPERM;
3389
3390 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3391 if (IS_ERR(vbuf))
3392 return PTR_ERR(vbuf);
3393
3394 err = mnt_want_write_file(filp);
3395 if (err)
3396 goto out;
3397
3398 down_write(&sbi->sb_lock);
3399
3400 memset(sbi->raw_super->volume_name, 0,
3401 sizeof(sbi->raw_super->volume_name));
3402 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3403 sbi->raw_super->volume_name,
3404 ARRAY_SIZE(sbi->raw_super->volume_name));
3405
3406 err = f2fs_commit_super(sbi, false);
3407
3408 up_write(&sbi->sb_lock);
3409
3410 mnt_drop_write_file(filp);
3411out:
3412 kfree(vbuf);
3413 return err;
3414}
3415
439dfb10
CY		 3416static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
3417{
3418 struct inode *inode = file_inode(filp);
3419 __u64 blocks;
3420
3421 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3422 return -EOPNOTSUPP;
3423
3424 if (!f2fs_compressed_file(inode))
3425 return -EINVAL;
3426
3427 blocks = F2FS_I(inode)->i_compr_blocks;
3428 return put_user(blocks, (u64 __user *)arg);
3429}
3430
ef8d563f
CY		 3431static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3432{
3433 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3434 unsigned int released_blocks = 0;
3435 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3436 block_t blkaddr;
3437 int i;
3438
3439 for (i = 0; i < count; i++) {
3440 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3441 dn->ofs_in_node + i);
3442
3443 if (!__is_valid_data_blkaddr(blkaddr))
3444 continue;
3445 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3446 DATA_GENERIC_ENHANCE)))
3447 return -EFSCORRUPTED;
3448 }
3449
3450 while (count) {
3451 int compr_blocks = 0;
3452
3453 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3454 blkaddr = f2fs_data_blkaddr(dn);
3455
3456 if (i == 0) {
3457 if (blkaddr == COMPRESS_ADDR)
3458 continue;
3459 dn->ofs_in_node += cluster_size;
3460 goto next;
3461 }
3462
3463 if (__is_valid_data_blkaddr(blkaddr))
3464 compr_blocks++;
3465
3466 if (blkaddr != NEW_ADDR)
3467 continue;
3468
3469 dn->data_blkaddr = NULL_ADDR;
3470 f2fs_set_data_blkaddr(dn);
3471 }
3472
3473 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
3474 dec_valid_block_count(sbi, dn->inode,
3475 cluster_size - compr_blocks);
3476
3477 released_blocks += cluster_size - compr_blocks;
3478next:
3479 count -= cluster_size;
3480 }
3481
3482 return released_blocks;
3483}
3484
3485static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
3486{
3487 struct inode *inode = file_inode(filp);
3488 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3489 pgoff_t page_idx = 0, last_idx;
3490 unsigned int released_blocks = 0;
3491 int ret;
3492 int writecount;
3493
3494 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3495 return -EOPNOTSUPP;
3496
3497 if (!f2fs_compressed_file(inode))
3498 return -EINVAL;
3499
3500 if (f2fs_readonly(sbi->sb))
3501 return -EROFS;
3502
3503 ret = mnt_want_write_file(filp);
3504 if (ret)
3505 return ret;
3506
3507 f2fs_balance_fs(F2FS_I_SB(inode), true);
3508
3509 inode_lock(inode);
3510
3511 writecount = atomic_read(&inode->i_writecount);
3512 if ((filp->f_mode & FMODE_WRITE && writecount != 1) || writecount) {
3513 ret = -EBUSY;
3514 goto out;
3515 }
3516
3517 if (IS_IMMUTABLE(inode)) {
3518 ret = -EINVAL;
3519 goto out;
3520 }
3521
3522 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
3523 if (ret)
3524 goto out;
3525
ef8d563f
CY		 3526 F2FS_I(inode)->i_flags |= F2FS_IMMUTABLE_FL;
3527 f2fs_set_inode_flags(inode);
3528 inode->i_ctime = current_time(inode);
3529 f2fs_mark_inode_dirty_sync(inode, true);
3530
567c4bf5
DJ		 3531 if (!F2FS_I(inode)->i_compr_blocks)
3532 goto out;
3533
ef8d563f
CY		 3534 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3535 down_write(&F2FS_I(inode)->i_mmap_sem);
3536
3537 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3538
3539 while (page_idx < last_idx) {
3540 struct dnode_of_data dn;
3541 pgoff_t end_offset, count;
3542
3543 set_new_dnode(&dn, inode, NULL, NULL, 0);
3544 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3545 if (ret) {
3546 if (ret == -ENOENT) {
3547 page_idx = f2fs_get_next_page_offset(&dn,
3548 page_idx);
3549 ret = 0;
3550 continue;
3551 }
3552 break;
3553 }
3554
3555 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3556 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3557 count = round_up(count, F2FS_I(inode)->i_cluster_size);
ef8d563f
CY		 3558
3559 ret = release_compress_blocks(&dn, count);
3560
3561 f2fs_put_dnode(&dn);
3562
3563 if (ret < 0)
3564 break;
3565
3566 page_idx += count;
3567 released_blocks += ret;
3568 }
3569
3570 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3571 up_write(&F2FS_I(inode)->i_mmap_sem);
3572out:
3573 inode_unlock(inode);
3574
3575 mnt_drop_write_file(filp);
3576
3577 if (ret >= 0) {
3578 ret = put_user(released_blocks, (u64 __user *)arg);
3579 } else if (released_blocks && F2FS_I(inode)->i_compr_blocks) {
3580 set_sbi_flag(sbi, SBI_NEED_FSCK);
3581 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
3582 "iblocks=%llu, released=%u, compr_blocks=%llu, "
3583 "run fsck to fix.",
3584 __func__, inode->i_ino, inode->i_blocks,
3585 released_blocks,
3586 F2FS_I(inode)->i_compr_blocks);
3587 }
3588
3589 return ret;
3590}
3591
c75488fb
CY		 3592static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3593{
3594 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3595 unsigned int reserved_blocks = 0;
3596 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3597 block_t blkaddr;
3598 int i;
3599
3600 for (i = 0; i < count; i++) {
3601 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3602 dn->ofs_in_node + i);
3603
3604 if (!__is_valid_data_blkaddr(blkaddr))
3605 continue;
3606 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3607 DATA_GENERIC_ENHANCE)))
3608 return -EFSCORRUPTED;
3609 }
3610
3611 while (count) {
3612 int compr_blocks = 0;
3613 blkcnt_t reserved;
3614 int ret;
3615
3616 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3617 blkaddr = f2fs_data_blkaddr(dn);
3618
3619 if (i == 0) {
3620 if (blkaddr == COMPRESS_ADDR)
3621 continue;
3622 dn->ofs_in_node += cluster_size;
3623 goto next;
3624 }
3625
3626 if (__is_valid_data_blkaddr(blkaddr)) {
3627 compr_blocks++;
3628 continue;
3629 }
3630
3631 dn->data_blkaddr = NEW_ADDR;
3632 f2fs_set_data_blkaddr(dn);
3633 }
3634
3635 reserved = cluster_size - compr_blocks;
3636 ret = inc_valid_block_count(sbi, dn->inode, &reserved);
3637 if (ret)
3638 return ret;
3639
3640 if (reserved != cluster_size - compr_blocks)
3641 return -ENOSPC;
3642
3643 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
3644
3645 reserved_blocks += reserved;
3646next:
3647 count -= cluster_size;
3648 }
3649
3650 return reserved_blocks;
3651}
3652
3653static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
3654{
3655 struct inode *inode = file_inode(filp);
3656 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3657 pgoff_t page_idx = 0, last_idx;
3658 unsigned int reserved_blocks = 0;
3659 int ret;
3660
3661 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3662 return -EOPNOTSUPP;
3663
3664 if (!f2fs_compressed_file(inode))
3665 return -EINVAL;
3666
3667 if (f2fs_readonly(sbi->sb))
3668 return -EROFS;
3669
3670 ret = mnt_want_write_file(filp);
3671 if (ret)
3672 return ret;
3673
3674 if (F2FS_I(inode)->i_compr_blocks)
3675 goto out;
3676
3677 f2fs_balance_fs(F2FS_I_SB(inode), true);
3678
3679 inode_lock(inode);
3680
3681 if (!IS_IMMUTABLE(inode)) {
3682 ret = -EINVAL;
3683 goto unlock_inode;
3684 }
3685
3686 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3687 down_write(&F2FS_I(inode)->i_mmap_sem);
3688
3689 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3690
3691 while (page_idx < last_idx) {
3692 struct dnode_of_data dn;
3693 pgoff_t end_offset, count;
3694
3695 set_new_dnode(&dn, inode, NULL, NULL, 0);
3696 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3697 if (ret) {
3698 if (ret == -ENOENT) {
3699 page_idx = f2fs_get_next_page_offset(&dn,
3700 page_idx);
3701 ret = 0;
3702 continue;
3703 }
3704 break;
3705 }
3706
3707 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3708 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
4fec3fc0 3709 count = round_up(count, F2FS_I(inode)->i_cluster_size);
c75488fb
CY		 3710
3711 ret = reserve_compress_blocks(&dn, count);
3712
3713 f2fs_put_dnode(&dn);
3714
3715 if (ret < 0)
3716 break;
3717
3718 page_idx += count;
3719 reserved_blocks += ret;
3720 }
3721
3722 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3723 up_write(&F2FS_I(inode)->i_mmap_sem);
3724
3725 if (ret >= 0) {
3726 F2FS_I(inode)->i_flags &= ~F2FS_IMMUTABLE_FL;
3727 f2fs_set_inode_flags(inode);
3728 inode->i_ctime = current_time(inode);
3729 f2fs_mark_inode_dirty_sync(inode, true);
3730 }
3731unlock_inode:
3732 inode_unlock(inode);
3733out:
3734 mnt_drop_write_file(filp);
3735
3736 if (ret >= 0) {
3737 ret = put_user(reserved_blocks, (u64 __user *)arg);
3738 } else if (reserved_blocks && F2FS_I(inode)->i_compr_blocks) {
3739 set_sbi_flag(sbi, SBI_NEED_FSCK);
3740 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
3741 "iblocks=%llu, reserved=%u, compr_blocks=%llu, "
3742 "run fsck to fix.",
3743 __func__, inode->i_ino, inode->i_blocks,
3744 reserved_blocks,
3745 F2FS_I(inode)->i_compr_blocks);
3746 }
3747
3748 return ret;
3749}
3750
9af84648
DJ		 3751static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
3752 pgoff_t off, block_t block, block_t len, u32 flags)
3753{
3754 struct request_queue *q = bdev_get_queue(bdev);
3755 sector_t sector = SECTOR_FROM_BLOCK(block);
3756 sector_t nr_sects = SECTOR_FROM_BLOCK(len);
3757 int ret = 0;
3758
3759 if (!q)
3760 return -ENXIO;
3761
3762 if (flags & F2FS_TRIM_FILE_DISCARD)
3763 ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
3764 blk_queue_secure_erase(q) ?
3765 BLKDEV_DISCARD_SECURE : 0);
3766
3767 if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
3768 if (IS_ENCRYPTED(inode))
3769 ret = fscrypt_zeroout_range(inode, off, block, len);
3770 else
3771 ret = blkdev_issue_zeroout(bdev, sector, nr_sects,
3772 GFP_NOFS, 0);
3773 }
3774
3775 return ret;
3776}
3777
3778static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
3779{
3780 struct inode *inode = file_inode(filp);
3781 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3782 struct address_space *mapping = inode->i_mapping;
3783 struct block_device *prev_bdev = NULL;
3784 struct f2fs_sectrim_range range;
3785 pgoff_t index, pg_end, prev_index = 0;
3786 block_t prev_block = 0, len = 0;
3787 loff_t end_addr;
3788 bool to_end = false;
3789 int ret = 0;
3790
3791 if (!(filp->f_mode & FMODE_WRITE))
3792 return -EBADF;
3793
3794 if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
3795 sizeof(range)))
3796 return -EFAULT;
3797
3798 if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
3799 !S_ISREG(inode->i_mode))
3800 return -EINVAL;
3801
3802 if (((range.flags & F2FS_TRIM_FILE_DISCARD) &&
3803 !f2fs_hw_support_discard(sbi)) ||
3804 ((range.flags & F2FS_TRIM_FILE_ZEROOUT) &&
3805 IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi)))
3806 return -EOPNOTSUPP;
3807
3808 file_start_write(filp);
3809 inode_lock(inode);
3810
3811 if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
3812 range.start >= inode->i_size) {
3813 ret = -EINVAL;
3814 goto err;
3815 }
3816
3817 if (range.len == 0)
3818 goto err;
3819
3820 if (inode->i_size - range.start > range.len) {
3821 end_addr = range.start + range.len;
3822 } else {
3823 end_addr = range.len == (u64)-1 ?
3824 sbi->sb->s_maxbytes : inode->i_size;
3825 to_end = true;
3826 }
3827
3828 if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
3829 (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
3830 ret = -EINVAL;
3831 goto err;
3832 }
3833
3834 index = F2FS_BYTES_TO_BLK(range.start);
3835 pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
3836
3837 ret = f2fs_convert_inline_inode(inode);
3838 if (ret)
3839 goto err;
3840
3841 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3842 down_write(&F2FS_I(inode)->i_mmap_sem);
3843
3844 ret = filemap_write_and_wait_range(mapping, range.start,
3845 to_end ? LLONG_MAX : end_addr - 1);
3846 if (ret)
3847 goto out;
3848
3849 truncate_inode_pages_range(mapping, range.start,
3850 to_end ? -1 : end_addr - 1);
3851
3852 while (index < pg_end) {
3853 struct dnode_of_data dn;
3854 pgoff_t end_offset, count;
3855 int i;
3856
3857 set_new_dnode(&dn, inode, NULL, NULL, 0);
3858 ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
3859 if (ret) {
3860 if (ret == -ENOENT) {
3861 index = f2fs_get_next_page_offset(&dn, index);
3862 continue;
3863 }
3864 goto out;
3865 }
3866
3867 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3868 count = min(end_offset - dn.ofs_in_node, pg_end - index);
3869 for (i = 0; i < count; i++, index++, dn.ofs_in_node++) {
3870 struct block_device *cur_bdev;
3871 block_t blkaddr = f2fs_data_blkaddr(&dn);
3872
3873 if (!__is_valid_data_blkaddr(blkaddr))
3874 continue;
3875
3876 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
3877 DATA_GENERIC_ENHANCE)) {
3878 ret = -EFSCORRUPTED;
3879 f2fs_put_dnode(&dn);
3880 goto out;
3881 }
3882
3883 cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
3884 if (f2fs_is_multi_device(sbi)) {
3885 int di = f2fs_target_device_index(sbi, blkaddr);
3886
3887 blkaddr -= FDEV(di).start_blk;
3888 }
3889
3890 if (len) {
3891 if (prev_bdev == cur_bdev &&
3892 index == prev_index + len &&
3893 blkaddr == prev_block + len) {
3894 len++;
3895 } else {
3896 ret = f2fs_secure_erase(prev_bdev,
3897 inode, prev_index, prev_block,
3898 len, range.flags);
3899 if (ret) {
3900 f2fs_put_dnode(&dn);
3901 goto out;
3902 }
3903
3904 len = 0;
3905 }
3906 }
3907
3908 if (!len) {
3909 prev_bdev = cur_bdev;
3910 prev_index = index;
3911 prev_block = blkaddr;
3912 len = 1;
3913 }
3914 }
3915
3916 f2fs_put_dnode(&dn);
3917
3918 if (fatal_signal_pending(current)) {
3919 ret = -EINTR;
3920 goto out;
3921 }
3922 cond_resched();
3923 }
3924
3925 if (len)
3926 ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
3927 prev_block, len, range.flags);
3928out:
3929 up_write(&F2FS_I(inode)->i_mmap_sem);
3930 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3931err:
3932 inode_unlock(inode);
3933 file_end_write(filp);
3934
3935 return ret;
3936}
3937
52656e6c
JK		 3938long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
3939{
1f227a3e
JK		 3940 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
3941 return -EIO;
00e09c0b
CY		 3942 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
3943 return -ENOSPC;
1f227a3e 3944
52656e6c 3945 switch (cmd) {
3357af8f 3946 case FS_IOC_GETFLAGS:
52656e6c 3947 return f2fs_ioc_getflags(filp, arg);
3357af8f 3948 case FS_IOC_SETFLAGS:
52656e6c 3949 return f2fs_ioc_setflags(filp, arg);
3357af8f 3950 case FS_IOC_GETVERSION:
d49f3e89 3951 return f2fs_ioc_getversion(filp, arg);
88b88a66
JK		 3952 case F2FS_IOC_START_ATOMIC_WRITE:
3953 return f2fs_ioc_start_atomic_write(filp);
3954 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
3955 return f2fs_ioc_commit_atomic_write(filp);
02a1335f
JK		 3956 case F2FS_IOC_START_VOLATILE_WRITE:
3957 return f2fs_ioc_start_volatile_write(filp);
1e84371f
JK		 3958 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
3959 return f2fs_ioc_release_volatile_write(filp);
3960 case F2FS_IOC_ABORT_VOLATILE_WRITE:
3961 return f2fs_ioc_abort_volatile_write(filp);
1abff93d
JK		 3962 case F2FS_IOC_SHUTDOWN:
3963 return f2fs_ioc_shutdown(filp, arg);
52656e6c
JK		 3964 case FITRIM:
3965 return f2fs_ioc_fitrim(filp, arg);
3357af8f 3966 case FS_IOC_SET_ENCRYPTION_POLICY:
f424f664 3967 return f2fs_ioc_set_encryption_policy(filp, arg);
3357af8f 3968 case FS_IOC_GET_ENCRYPTION_POLICY:
f424f664 3969 return f2fs_ioc_get_encryption_policy(filp, arg);
3357af8f 3970 case FS_IOC_GET_ENCRYPTION_PWSALT:
f424f664 3971 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
8ce589c7
EB		 3972 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
3973 return f2fs_ioc_get_encryption_policy_ex(filp, arg);
3974 case FS_IOC_ADD_ENCRYPTION_KEY:
3975 return f2fs_ioc_add_encryption_key(filp, arg);
3976 case FS_IOC_REMOVE_ENCRYPTION_KEY:
3977 return f2fs_ioc_remove_encryption_key(filp, arg);
3978 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
3979 return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
3980 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
3981 return f2fs_ioc_get_encryption_key_status(filp, arg);
ee446e1a
EB		 3982 case FS_IOC_GET_ENCRYPTION_NONCE:
3983 return f2fs_ioc_get_encryption_nonce(filp, arg);
c1c1b583
CY		 3984 case F2FS_IOC_GARBAGE_COLLECT:
3985 return f2fs_ioc_gc(filp, arg);
34dc77ad
JK		 3986 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
3987 return f2fs_ioc_gc_range(filp, arg);
456b88e4 3988 case F2FS_IOC_WRITE_CHECKPOINT:
059c0648 3989 return f2fs_ioc_write_checkpoint(filp, arg);
d323d005
CY		 3990 case F2FS_IOC_DEFRAGMENT:
3991 return f2fs_ioc_defragment(filp, arg);
4dd6f977
JK		 3992 case F2FS_IOC_MOVE_RANGE:
3993 return f2fs_ioc_move_range(filp, arg);
e066b83c
JK		 3994 case F2FS_IOC_FLUSH_DEVICE:
3995 return f2fs_ioc_flush_device(filp, arg);
e65ef207
JK		 3996 case F2FS_IOC_GET_FEATURES:
3997 return f2fs_ioc_get_features(filp, arg);
3357af8f 3998 case FS_IOC_FSGETXATTR:
2c1d0305 3999 return f2fs_ioc_fsgetxattr(filp, arg);
3357af8f 4000 case FS_IOC_FSSETXATTR:
2c1d0305 4001 return f2fs_ioc_fssetxattr(filp, arg);
1ad71a27
JK		 4002 case F2FS_IOC_GET_PIN_FILE:
4003 return f2fs_ioc_get_pin_file(filp, arg);
4004 case F2FS_IOC_SET_PIN_FILE:
4005 return f2fs_ioc_set_pin_file(filp, arg);
c4020b2d
CY		 4006 case F2FS_IOC_PRECACHE_EXTENTS:
4007 return f2fs_ioc_precache_extents(filp, arg);
04f0b2ea
QS		 4008 case F2FS_IOC_RESIZE_FS:
4009 return f2fs_ioc_resize_fs(filp, arg);
95ae251f
EB		 4010 case FS_IOC_ENABLE_VERITY:
4011 return f2fs_ioc_enable_verity(filp, arg);
4012 case FS_IOC_MEASURE_VERITY:
4013 return f2fs_ioc_measure_verity(filp, arg);
3357af8f
EB		 4014 case FS_IOC_GETFSLABEL:
4015 return f2fs_ioc_getfslabel(filp, arg);
4016 case FS_IOC_SETFSLABEL:
4017 return f2fs_ioc_setfslabel(filp, arg);
439dfb10
CY		 4018 case F2FS_IOC_GET_COMPRESS_BLOCKS:
4019 return f2fs_get_compress_blocks(filp, arg);
ef8d563f
CY		 4020 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
4021 return f2fs_release_compress_blocks(filp, arg);
c75488fb
CY		 4022 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
4023 return f2fs_reserve_compress_blocks(filp, arg);
9af84648
DJ		 4024 case F2FS_IOC_SEC_TRIM_FILE:
4025 return f2fs_sec_trim_file(filp, arg);
fbfa2cc5
JK		 4026 default:
4027 return -ENOTTY;
4028 }
4029}
4030
4c8ff709
CY		 4031static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
4032{
4033 struct file *file = iocb->ki_filp;
4034 struct inode *inode = file_inode(file);
8b83ac81 4035 int ret;
4c8ff709
CY		 4036
4037 if (!f2fs_is_compress_backend_ready(inode))
4038 return -EOPNOTSUPP;
4039
8b83ac81
CY		 4040 ret = generic_file_read_iter(iocb, iter);
4041
4042 if (ret > 0)
4043 f2fs_update_iostat(F2FS_I_SB(inode), APP_READ_IO, ret);
4044
4045 return ret;
4c8ff709
CY		 4046}
4047
fcc85a4d
JK		 4048static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
4049{
b439b103
JK		 4050 struct file *file = iocb->ki_filp;
4051 struct inode *inode = file_inode(file);
4052 ssize_t ret;
fcc85a4d 4053
126ce721
CY		 4054 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
4055 ret = -EIO;
4056 goto out;
4057 }
1f227a3e 4058
7bd29358
CY		 4059 if (!f2fs_is_compress_backend_ready(inode)) {
4060 ret = -EOPNOTSUPP;
4061 goto out;
4062 }
4c8ff709 4063
cb8434f1
GR		 4064 if (iocb->ki_flags & IOCB_NOWAIT) {
4065 if (!inode_trylock(inode)) {
126ce721
CY		 4066 ret = -EAGAIN;
4067 goto out;
4068 }
cb8434f1 4069 } else {
b91050a8
HL		 4070 inode_lock(inode);
4071 }
4072
b439b103
JK		 4073 ret = generic_write_checks(iocb, from);
4074 if (ret > 0) {
dc7a10dd
JK		 4075 bool preallocated = false;
4076 size_t target_size = 0;
dc91de78 4077 int err;
a7de6086 4078
dc91de78
JK		 4079 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
4080 set_inode_flag(inode, FI_NO_PREALLOC);
a7de6086 4081
d5d5f0c0
CX		 4082 if ((iocb->ki_flags & IOCB_NOWAIT)) {
4083 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
b91050a8 4084 iov_iter_count(from)) ||
d5d5f0c0
CX		 4085 f2fs_has_inline_data(inode) ||
4086 f2fs_force_buffered_io(inode, iocb, from)) {
4087 clear_inode_flag(inode, FI_NO_PREALLOC);
4088 inode_unlock(inode);
4089 ret = -EAGAIN;
4090 goto out;
4091 }
47501f87
JK		 4092 goto write;
4093 }
dc7a10dd 4094
47501f87
JK		 4095 if (is_inode_flag_set(inode, FI_NO_PREALLOC))
4096 goto write;
4097
4098 if (iocb->ki_flags & IOCB_DIRECT) {
4099 /*
4100 * Convert inline data for Direct I/O before entering
4101 * f2fs_direct_IO().
4102 */
4103 err = f2fs_convert_inline_inode(inode);
4104 if (err)
4105 goto out_err;
4106 /*
4107 * If force_buffere_io() is true, we have to allocate
4108 * blocks all the time, since f2fs_direct_IO will fall
4109 * back to buffered IO.
4110 */
4111 if (!f2fs_force_buffered_io(inode, iocb, from) &&
4112 allow_outplace_dio(inode, iocb, from))
4113 goto write;
4114 }
4115 preallocated = true;
4116 target_size = iocb->ki_pos + iov_iter_count(from);
4117
4118 err = f2fs_preallocate_blocks(iocb, from);
4119 if (err) {
4120out_err:
4121 clear_inode_flag(inode, FI_NO_PREALLOC);
4122 inode_unlock(inode);
4123 ret = err;
4124 goto out;
9dfa1baf 4125 }
47501f87 4126write:
a7de6086 4127 ret = __generic_file_write_iter(iocb, from);
dc91de78 4128 clear_inode_flag(inode, FI_NO_PREALLOC);
b0af6d49 4129
dc7a10dd
JK		 4130 /* if we couldn't write data, we should deallocate blocks. */
4131 if (preallocated && i_size_read(inode) < target_size)
4132 f2fs_truncate(inode);
4133
b0af6d49
CY		 4134 if (ret > 0)
4135 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
b439b103
JK		 4136 }
4137 inode_unlock(inode);
126ce721
CY		 4138out:
4139 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
4140 iov_iter_count(from), ret);
e2592217
CH		 4141 if (ret > 0)
4142 ret = generic_write_sync(iocb, ret);
b439b103 4143 return ret;
fcc85a4d
JK		 4144}
4145
e9750824
NJ		 4146#ifdef CONFIG_COMPAT
4147long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
4148{
4149 switch (cmd) {
3357af8f
EB		 4150 case FS_IOC32_GETFLAGS:
4151 cmd = FS_IOC_GETFLAGS;
e9750824 4152 break;
3357af8f
EB		 4153 case FS_IOC32_SETFLAGS:
4154 cmd = FS_IOC_SETFLAGS;
e9750824 4155 break;
3357af8f
EB		 4156 case FS_IOC32_GETVERSION:
4157 cmd = FS_IOC_GETVERSION;
04ef4b62
CY		 4158 break;
4159 case F2FS_IOC_START_ATOMIC_WRITE:
4160 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4161 case F2FS_IOC_START_VOLATILE_WRITE:
4162 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4163 case F2FS_IOC_ABORT_VOLATILE_WRITE:
4164 case F2FS_IOC_SHUTDOWN:
314999dc 4165 case FITRIM:
3357af8f
EB		 4166 case FS_IOC_SET_ENCRYPTION_POLICY:
4167 case FS_IOC_GET_ENCRYPTION_PWSALT:
4168 case FS_IOC_GET_ENCRYPTION_POLICY:
8ce589c7
EB		 4169 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4170 case FS_IOC_ADD_ENCRYPTION_KEY:
4171 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4172 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4173 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
ee446e1a 4174 case FS_IOC_GET_ENCRYPTION_NONCE:
04ef4b62 4175 case F2FS_IOC_GARBAGE_COLLECT:
34dc77ad 4176 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
04ef4b62
CY		 4177 case F2FS_IOC_WRITE_CHECKPOINT:
4178 case F2FS_IOC_DEFRAGMENT:
4dd6f977 4179 case F2FS_IOC_MOVE_RANGE:
e066b83c 4180 case F2FS_IOC_FLUSH_DEVICE:
e65ef207 4181 case F2FS_IOC_GET_FEATURES:
3357af8f
EB		 4182 case FS_IOC_FSGETXATTR:
4183 case FS_IOC_FSSETXATTR:
1ad71a27
JK		 4184 case F2FS_IOC_GET_PIN_FILE:
4185 case F2FS_IOC_SET_PIN_FILE:
c4020b2d 4186 case F2FS_IOC_PRECACHE_EXTENTS:
04f0b2ea 4187 case F2FS_IOC_RESIZE_FS:
95ae251f
EB		 4188 case FS_IOC_ENABLE_VERITY:
4189 case FS_IOC_MEASURE_VERITY:
3357af8f
EB		 4190 case FS_IOC_GETFSLABEL:
4191 case FS_IOC_SETFSLABEL:
439dfb10 4192 case F2FS_IOC_GET_COMPRESS_BLOCKS:
ef8d563f 4193 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
c75488fb 4194 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
9af84648 4195 case F2FS_IOC_SEC_TRIM_FILE:
4dd6f977 4196 break;
e9750824
NJ		 4197 default:
4198 return -ENOIOCTLCMD;
4199 }
4200 return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
4201}
4202#endif
4203
fbfa2cc5 4204const struct file_operations f2fs_file_operations = {
267378d4 4205 .llseek = f2fs_llseek,
4c8ff709 4206 .read_iter = f2fs_file_read_iter,
fcc85a4d
JK		 4207 .write_iter = f2fs_file_write_iter,
4208 .open = f2fs_file_open,
12662234 4209 .release = f2fs_release_file,
fbfa2cc5 4210 .mmap = f2fs_file_mmap,
7a10f017 4211 .flush = f2fs_file_flush,
fbfa2cc5
JK		 4212 .fsync = f2fs_sync_file,
4213 .fallocate = f2fs_fallocate,
4214 .unlocked_ioctl = f2fs_ioctl,
e9750824
NJ		 4215#ifdef CONFIG_COMPAT
4216 .compat_ioctl = f2fs_compat_ioctl,
4217#endif
fbfa2cc5 4218 .splice_read = generic_file_splice_read,
8d020765 4219 .splice_write = iter_file_splice_write,
fbfa2cc5 4220};
Linux 6.x block layer and io_uring tree(s)