1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
9 #include <linux/f2fs_fs.h>
10 #include <linux/stat.h>
11 #include <linux/buffer_head.h>
12 #include <linux/writeback.h>
13 #include <linux/blkdev.h>
14 #include <linux/falloc.h>
15 #include <linux/types.h>
16 #include <linux/compat.h>
17 #include <linux/uaccess.h>
18 #include <linux/mount.h>
19 #include <linux/pagevec.h>
20 #include <linux/uio.h>
21 #include <linux/uuid.h>
22 #include <linux/file.h>
23 #include <linux/nls.h>
24 #include <linux/sched/signal.h>
25 #include <linux/fileattr.h>
26 #include <linux/fadvise.h>
27 #include <linux/iomap.h>
36 #include <trace/events/f2fs.h>
37 #include <uapi/linux/f2fs.h>
39 static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
41 struct inode *inode = file_inode(vmf->vma->vm_file);
44 ret = filemap_fault(vmf);
46 f2fs_update_iostat(F2FS_I_SB(inode), inode,
47 APP_MAPPED_READ_IO, F2FS_BLKSIZE);
49 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
54 static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
56 struct page *page = vmf->page;
57 struct inode *inode = file_inode(vmf->vma->vm_file);
58 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
59 struct dnode_of_data dn;
60 bool need_alloc = true;
63 if (unlikely(IS_IMMUTABLE(inode)))
64 return VM_FAULT_SIGBUS;
66 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
67 return VM_FAULT_SIGBUS;
69 if (unlikely(f2fs_cp_error(sbi))) {
74 if (!f2fs_is_checkpoint_ready(sbi)) {
79 err = f2fs_convert_inline_inode(inode);
83 #ifdef CONFIG_F2FS_FS_COMPRESSION
84 if (f2fs_compressed_file(inode)) {
85 int ret = f2fs_is_compressed_cluster(inode, page->index);
95 /* should do out of any locked page */
97 f2fs_balance_fs(sbi, true);
99 sb_start_pagefault(inode->i_sb);
101 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
103 file_update_time(vmf->vma->vm_file);
104 filemap_invalidate_lock_shared(inode->i_mapping);
106 if (unlikely(page->mapping != inode->i_mapping ||
107 page_offset(page) > i_size_read(inode) ||
108 !PageUptodate(page))) {
115 /* block allocation */
116 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
117 set_new_dnode(&dn, inode, NULL, NULL, 0);
118 err = f2fs_get_block(&dn, page->index);
119 f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
122 #ifdef CONFIG_F2FS_FS_COMPRESSION
124 set_new_dnode(&dn, inode, NULL, NULL, 0);
125 err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);
134 f2fs_wait_on_page_writeback(page, DATA, false, true);
136 /* wait for GCed page writeback via META_MAPPING */
137 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
140 * check to see if the page is mapped already (no holes)
142 if (PageMappedToDisk(page))
145 /* page is wholly or partially inside EOF */
146 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
147 i_size_read(inode)) {
150 offset = i_size_read(inode) & ~PAGE_MASK;
151 zero_user_segment(page, offset, PAGE_SIZE);
153 set_page_dirty(page);
154 if (!PageUptodate(page))
155 SetPageUptodate(page);
157 f2fs_update_iostat(sbi, inode, APP_MAPPED_IO, F2FS_BLKSIZE);
158 f2fs_update_time(sbi, REQ_TIME);
160 trace_f2fs_vm_page_mkwrite(page, DATA);
162 filemap_invalidate_unlock_shared(inode->i_mapping);
164 sb_end_pagefault(inode->i_sb);
166 return block_page_mkwrite_return(err);
169 static const struct vm_operations_struct f2fs_file_vm_ops = {
170 .fault = f2fs_filemap_fault,
171 .map_pages = filemap_map_pages,
172 .page_mkwrite = f2fs_vm_page_mkwrite,
175 static int get_parent_ino(struct inode *inode, nid_t *pino)
177 struct dentry *dentry;
180 * Make sure to get the non-deleted alias. The alias associated with
181 * the open file descriptor being fsync()'ed may be deleted already.
183 dentry = d_find_alias(inode);
187 *pino = parent_ino(dentry);
192 static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
194 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
195 enum cp_reason_type cp_reason = CP_NO_NEEDED;
197 if (!S_ISREG(inode->i_mode))
198 cp_reason = CP_NON_REGULAR;
199 else if (f2fs_compressed_file(inode))
200 cp_reason = CP_COMPRESSED;
201 else if (inode->i_nlink != 1)
202 cp_reason = CP_HARDLINK;
203 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
204 cp_reason = CP_SB_NEED_CP;
205 else if (file_wrong_pino(inode))
206 cp_reason = CP_WRONG_PINO;
207 else if (!f2fs_space_for_roll_forward(sbi))
208 cp_reason = CP_NO_SPC_ROLL;
209 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
210 cp_reason = CP_NODE_NEED_CP;
211 else if (test_opt(sbi, FASTBOOT))
212 cp_reason = CP_FASTBOOT_MODE;
213 else if (F2FS_OPTION(sbi).active_logs == 2)
214 cp_reason = CP_SPEC_LOG_NUM;
215 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
216 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
217 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
219 cp_reason = CP_RECOVER_DIR;
224 static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
226 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
228 /* But we need to avoid that there are some inode updates */
229 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
235 static void try_to_fix_pino(struct inode *inode)
237 struct f2fs_inode_info *fi = F2FS_I(inode);
240 f2fs_down_write(&fi->i_sem);
241 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
242 get_parent_ino(inode, &pino)) {
243 f2fs_i_pino_write(inode, pino);
244 file_got_pino(inode);
246 f2fs_up_write(&fi->i_sem);
249 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
250 int datasync, bool atomic)
252 struct inode *inode = file->f_mapping->host;
253 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
254 nid_t ino = inode->i_ino;
256 enum cp_reason_type cp_reason = 0;
257 struct writeback_control wbc = {
258 .sync_mode = WB_SYNC_ALL,
259 .nr_to_write = LONG_MAX,
262 unsigned int seq_id = 0;
264 if (unlikely(f2fs_readonly(inode->i_sb)))
267 trace_f2fs_sync_file_enter(inode);
269 if (S_ISDIR(inode->i_mode))
272 /* if fdatasync is triggered, let's do in-place-update */
273 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
274 set_inode_flag(inode, FI_NEED_IPU);
275 ret = file_write_and_wait_range(file, start, end);
276 clear_inode_flag(inode, FI_NEED_IPU);
278 if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
279 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
283 /* if the inode is dirty, let's recover all the time */
284 if (!f2fs_skip_inode_update(inode, datasync)) {
285 f2fs_write_inode(inode, NULL);
290 * if there is no written data, don't waste time to write recovery info.
292 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
293 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
295 /* it may call write_inode just prior to fsync */
296 if (need_inode_page_update(sbi, ino))
299 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
300 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
305 * for OPU case, during fsync(), node can be persisted before
306 * data when lower device doesn't support write barrier, result
307 * in data corruption after SPO.
308 * So for strict fsync mode, force to use atomic write sematics
309 * to keep write order in between data/node and last node to
310 * avoid potential data corruption.
312 if (F2FS_OPTION(sbi).fsync_mode ==
313 FSYNC_MODE_STRICT && !atomic)
318 * Both of fdatasync() and fsync() are able to be recovered from
321 f2fs_down_read(&F2FS_I(inode)->i_sem);
322 cp_reason = need_do_checkpoint(inode);
323 f2fs_up_read(&F2FS_I(inode)->i_sem);
326 /* all the dirty node pages should be flushed for POR */
327 ret = f2fs_sync_fs(inode->i_sb, 1);
330 * We've secured consistency through sync_fs. Following pino
331 * will be used only for fsynced inodes after checkpoint.
333 try_to_fix_pino(inode);
334 clear_inode_flag(inode, FI_APPEND_WRITE);
335 clear_inode_flag(inode, FI_UPDATE_WRITE);
339 atomic_inc(&sbi->wb_sync_req[NODE]);
340 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
341 atomic_dec(&sbi->wb_sync_req[NODE]);
345 /* if cp_error was enabled, we should avoid infinite loop */
346 if (unlikely(f2fs_cp_error(sbi))) {
351 if (f2fs_need_inode_block_update(sbi, ino)) {
352 f2fs_mark_inode_dirty_sync(inode, true);
353 f2fs_write_inode(inode, NULL);
358 * If it's atomic_write, it's just fine to keep write ordering. So
359 * here we don't need to wait for node write completion, since we use
360 * node chain which serializes node blocks. If one of node writes are
361 * reordered, we can see simply broken chain, resulting in stopping
362 * roll-forward recovery. It means we'll recover all or none node blocks
366 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
371 /* once recovery info is written, don't need to tack this */
372 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
373 clear_inode_flag(inode, FI_APPEND_WRITE);
375 if ((!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER) ||
376 (atomic && !test_opt(sbi, NOBARRIER) && f2fs_sb_has_blkzoned(sbi)))
377 ret = f2fs_issue_flush(sbi, inode->i_ino);
379 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
380 clear_inode_flag(inode, FI_UPDATE_WRITE);
381 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
383 f2fs_update_time(sbi, REQ_TIME);
385 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
389 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
391 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
393 return f2fs_do_sync_file(file, start, end, datasync, false);
396 static bool __found_offset(struct address_space *mapping, block_t blkaddr,
397 pgoff_t index, int whence)
401 if (__is_valid_data_blkaddr(blkaddr))
403 if (blkaddr == NEW_ADDR &&
404 xa_get_mark(&mapping->i_pages, index, PAGECACHE_TAG_DIRTY))
408 if (blkaddr == NULL_ADDR)
415 static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
417 struct inode *inode = file->f_mapping->host;
418 loff_t maxbytes = inode->i_sb->s_maxbytes;
419 struct dnode_of_data dn;
420 pgoff_t pgofs, end_offset;
421 loff_t data_ofs = offset;
427 isize = i_size_read(inode);
431 /* handle inline data case */
432 if (f2fs_has_inline_data(inode)) {
433 if (whence == SEEK_HOLE) {
436 } else if (whence == SEEK_DATA) {
442 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
444 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
445 set_new_dnode(&dn, inode, NULL, NULL, 0);
446 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
447 if (err && err != -ENOENT) {
449 } else if (err == -ENOENT) {
450 /* direct node does not exists */
451 if (whence == SEEK_DATA) {
452 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
459 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
461 /* find data/hole in dnode block */
462 for (; dn.ofs_in_node < end_offset;
463 dn.ofs_in_node++, pgofs++,
464 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
467 blkaddr = f2fs_data_blkaddr(&dn);
469 if (__is_valid_data_blkaddr(blkaddr) &&
470 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
471 blkaddr, DATA_GENERIC_ENHANCE)) {
476 if (__found_offset(file->f_mapping, blkaddr,
485 if (whence == SEEK_DATA)
488 if (whence == SEEK_HOLE && data_ofs > isize)
491 return vfs_setpos(file, data_ofs, maxbytes);
497 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
499 struct inode *inode = file->f_mapping->host;
500 loff_t maxbytes = inode->i_sb->s_maxbytes;
502 if (f2fs_compressed_file(inode))
503 maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS;
509 return generic_file_llseek_size(file, offset, whence,
510 maxbytes, i_size_read(inode));
515 return f2fs_seek_block(file, offset, whence);
521 static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
523 struct inode *inode = file_inode(file);
525 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
528 if (!f2fs_is_compress_backend_ready(inode))
532 vma->vm_ops = &f2fs_file_vm_ops;
533 set_inode_flag(inode, FI_MMAP_FILE);
537 static int f2fs_file_open(struct inode *inode, struct file *filp)
539 int err = fscrypt_file_open(inode, filp);
544 if (!f2fs_is_compress_backend_ready(inode))
547 err = fsverity_file_open(inode, filp);
551 filp->f_mode |= FMODE_NOWAIT;
553 return dquot_file_open(inode, filp);
556 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
558 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
559 struct f2fs_node *raw_node;
560 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
563 bool compressed_cluster = false;
564 int cluster_index = 0, valid_blocks = 0;
565 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
566 bool released = !atomic_read(&F2FS_I(dn->inode)->i_compr_blocks);
568 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
569 base = get_extra_isize(dn->inode);
571 raw_node = F2FS_NODE(dn->node_page);
572 addr = blkaddr_in_node(raw_node) + base + ofs;
574 /* Assumption: truncation starts with cluster */
575 for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
576 block_t blkaddr = le32_to_cpu(*addr);
578 if (f2fs_compressed_file(dn->inode) &&
579 !(cluster_index & (cluster_size - 1))) {
580 if (compressed_cluster)
581 f2fs_i_compr_blocks_update(dn->inode,
582 valid_blocks, false);
583 compressed_cluster = (blkaddr == COMPRESS_ADDR);
587 if (blkaddr == NULL_ADDR)
590 dn->data_blkaddr = NULL_ADDR;
591 f2fs_set_data_blkaddr(dn);
593 if (__is_valid_data_blkaddr(blkaddr)) {
594 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
595 DATA_GENERIC_ENHANCE))
597 if (compressed_cluster)
601 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
602 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
604 f2fs_invalidate_blocks(sbi, blkaddr);
606 if (!released || blkaddr != COMPRESS_ADDR)
610 if (compressed_cluster)
611 f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
616 * once we invalidate valid blkaddr in range [ofs, ofs + count],
617 * we will invalidate all blkaddr in the whole range.
619 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
621 f2fs_update_read_extent_cache_range(dn, fofs, 0, len);
622 f2fs_update_age_extent_cache_range(dn, fofs, nr_free);
623 dec_valid_block_count(sbi, dn->inode, nr_free);
625 dn->ofs_in_node = ofs;
627 f2fs_update_time(sbi, REQ_TIME);
628 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
629 dn->ofs_in_node, nr_free);
632 void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
634 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
637 static int truncate_partial_data_page(struct inode *inode, u64 from,
640 loff_t offset = from & (PAGE_SIZE - 1);
641 pgoff_t index = from >> PAGE_SHIFT;
642 struct address_space *mapping = inode->i_mapping;
645 if (!offset && !cache_only)
649 page = find_lock_page(mapping, index);
650 if (page && PageUptodate(page))
652 f2fs_put_page(page, 1);
656 page = f2fs_get_lock_data_page(inode, index, true);
658 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
660 f2fs_wait_on_page_writeback(page, DATA, true, true);
661 zero_user(page, offset, PAGE_SIZE - offset);
663 /* An encrypted inode should have a key and truncate the last page. */
664 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
666 set_page_dirty(page);
667 f2fs_put_page(page, 1);
671 int f2fs_do_truncate_blocks(struct inode *inode, u64 from, bool lock)
673 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
674 struct dnode_of_data dn;
676 int count = 0, err = 0;
678 bool truncate_page = false;
680 trace_f2fs_truncate_blocks_enter(inode, from);
682 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
684 if (free_from >= max_file_blocks(inode))
690 ipage = f2fs_get_node_page(sbi, inode->i_ino);
692 err = PTR_ERR(ipage);
696 if (f2fs_has_inline_data(inode)) {
697 f2fs_truncate_inline_inode(inode, ipage, from);
698 f2fs_put_page(ipage, 1);
699 truncate_page = true;
703 set_new_dnode(&dn, inode, ipage, NULL, 0);
704 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
711 count = ADDRS_PER_PAGE(dn.node_page, inode);
713 count -= dn.ofs_in_node;
714 f2fs_bug_on(sbi, count < 0);
716 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
717 f2fs_truncate_data_blocks_range(&dn, count);
723 err = f2fs_truncate_inode_blocks(inode, free_from);
728 /* lastly zero out the first data page */
730 err = truncate_partial_data_page(inode, from, truncate_page);
732 trace_f2fs_truncate_blocks_exit(inode, err);
736 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
738 u64 free_from = from;
741 #ifdef CONFIG_F2FS_FS_COMPRESSION
743 * for compressed file, only support cluster size
744 * aligned truncation.
746 if (f2fs_compressed_file(inode))
747 free_from = round_up(from,
748 F2FS_I(inode)->i_cluster_size << PAGE_SHIFT);
751 err = f2fs_do_truncate_blocks(inode, free_from, lock);
755 #ifdef CONFIG_F2FS_FS_COMPRESSION
757 * For compressed file, after release compress blocks, don't allow write
758 * direct, but we should allow write direct after truncate to zero.
760 if (f2fs_compressed_file(inode) && !free_from
761 && is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
762 clear_inode_flag(inode, FI_COMPRESS_RELEASED);
764 if (from != free_from) {
765 err = f2fs_truncate_partial_cluster(inode, from, lock);
774 int f2fs_truncate(struct inode *inode)
778 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
781 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
782 S_ISLNK(inode->i_mode)))
785 trace_f2fs_truncate(inode);
787 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
788 f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
792 err = f2fs_dquot_initialize(inode);
796 /* we should check inline_data size */
797 if (!f2fs_may_inline_data(inode)) {
798 err = f2fs_convert_inline_inode(inode);
803 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
807 inode->i_mtime = inode->i_ctime = current_time(inode);
808 f2fs_mark_inode_dirty_sync(inode, false);
812 static bool f2fs_force_buffered_io(struct inode *inode, int rw)
814 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
816 if (!fscrypt_dio_supported(inode))
818 if (fsverity_active(inode))
820 if (f2fs_compressed_file(inode))
823 /* disallow direct IO if any of devices has unaligned blksize */
824 if (f2fs_is_multi_device(sbi) && !sbi->aligned_blksize)
827 * for blkzoned device, fallback direct IO to buffered IO, so
828 * all IOs can be serialized by log-structured write.
830 if (f2fs_sb_has_blkzoned(sbi) && (rw == WRITE))
832 if (f2fs_lfs_mode(sbi) && rw == WRITE && F2FS_IO_ALIGNED(sbi))
834 if (is_sbi_flag_set(sbi, SBI_CP_DISABLED))
840 int f2fs_getattr(struct user_namespace *mnt_userns, const struct path *path,
841 struct kstat *stat, u32 request_mask, unsigned int query_flags)
843 struct inode *inode = d_inode(path->dentry);
844 struct f2fs_inode_info *fi = F2FS_I(inode);
845 struct f2fs_inode *ri = NULL;
848 if (f2fs_has_extra_attr(inode) &&
849 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
850 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
851 stat->result_mask |= STATX_BTIME;
852 stat->btime.tv_sec = fi->i_crtime.tv_sec;
853 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
857 * Return the DIO alignment restrictions if requested. We only return
858 * this information when requested, since on encrypted files it might
859 * take a fair bit of work to get if the file wasn't opened recently.
861 * f2fs sometimes supports DIO reads but not DIO writes. STATX_DIOALIGN
862 * cannot represent that, so in that case we report no DIO support.
864 if ((request_mask & STATX_DIOALIGN) && S_ISREG(inode->i_mode)) {
865 unsigned int bsize = i_blocksize(inode);
867 stat->result_mask |= STATX_DIOALIGN;
868 if (!f2fs_force_buffered_io(inode, WRITE)) {
869 stat->dio_mem_align = bsize;
870 stat->dio_offset_align = bsize;
875 if (flags & F2FS_COMPR_FL)
876 stat->attributes |= STATX_ATTR_COMPRESSED;
877 if (flags & F2FS_APPEND_FL)
878 stat->attributes |= STATX_ATTR_APPEND;
879 if (IS_ENCRYPTED(inode))
880 stat->attributes |= STATX_ATTR_ENCRYPTED;
881 if (flags & F2FS_IMMUTABLE_FL)
882 stat->attributes |= STATX_ATTR_IMMUTABLE;
883 if (flags & F2FS_NODUMP_FL)
884 stat->attributes |= STATX_ATTR_NODUMP;
885 if (IS_VERITY(inode))
886 stat->attributes |= STATX_ATTR_VERITY;
888 stat->attributes_mask |= (STATX_ATTR_COMPRESSED |
890 STATX_ATTR_ENCRYPTED |
891 STATX_ATTR_IMMUTABLE |
895 generic_fillattr(mnt_userns, inode, stat);
897 /* we need to show initial sectors used for inline_data/dentries */
898 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
899 f2fs_has_inline_dentry(inode))
900 stat->blocks += (stat->size + 511) >> 9;
905 #ifdef CONFIG_F2FS_FS_POSIX_ACL
906 static void __setattr_copy(struct user_namespace *mnt_userns,
907 struct inode *inode, const struct iattr *attr)
909 unsigned int ia_valid = attr->ia_valid;
911 i_uid_update(mnt_userns, attr, inode);
912 i_gid_update(mnt_userns, attr, inode);
913 if (ia_valid & ATTR_ATIME)
914 inode->i_atime = attr->ia_atime;
915 if (ia_valid & ATTR_MTIME)
916 inode->i_mtime = attr->ia_mtime;
917 if (ia_valid & ATTR_CTIME)
918 inode->i_ctime = attr->ia_ctime;
919 if (ia_valid & ATTR_MODE) {
920 umode_t mode = attr->ia_mode;
921 vfsgid_t vfsgid = i_gid_into_vfsgid(mnt_userns, inode);
923 if (!vfsgid_in_group_p(vfsgid) &&
924 !capable_wrt_inode_uidgid(mnt_userns, inode, CAP_FSETID))
926 set_acl_inode(inode, mode);
930 #define __setattr_copy setattr_copy
933 int f2fs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
936 struct inode *inode = d_inode(dentry);
939 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
942 if (unlikely(IS_IMMUTABLE(inode)))
945 if (unlikely(IS_APPEND(inode) &&
946 (attr->ia_valid & (ATTR_MODE | ATTR_UID |
947 ATTR_GID | ATTR_TIMES_SET))))
950 if ((attr->ia_valid & ATTR_SIZE) &&
951 !f2fs_is_compress_backend_ready(inode))
954 err = setattr_prepare(mnt_userns, dentry, attr);
958 err = fscrypt_prepare_setattr(dentry, attr);
962 err = fsverity_prepare_setattr(dentry, attr);
966 if (is_quota_modification(mnt_userns, inode, attr)) {
967 err = f2fs_dquot_initialize(inode);
971 if (i_uid_needs_update(mnt_userns, attr, inode) ||
972 i_gid_needs_update(mnt_userns, attr, inode)) {
973 f2fs_lock_op(F2FS_I_SB(inode));
974 err = dquot_transfer(mnt_userns, inode, attr);
976 set_sbi_flag(F2FS_I_SB(inode),
977 SBI_QUOTA_NEED_REPAIR);
978 f2fs_unlock_op(F2FS_I_SB(inode));
982 * update uid/gid under lock_op(), so that dquot and inode can
983 * be updated atomically.
985 i_uid_update(mnt_userns, attr, inode);
986 i_gid_update(mnt_userns, attr, inode);
987 f2fs_mark_inode_dirty_sync(inode, true);
988 f2fs_unlock_op(F2FS_I_SB(inode));
991 if (attr->ia_valid & ATTR_SIZE) {
992 loff_t old_size = i_size_read(inode);
994 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
996 * should convert inline inode before i_size_write to
997 * keep smaller than inline_data size with inline flag.
999 err = f2fs_convert_inline_inode(inode);
1004 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1005 filemap_invalidate_lock(inode->i_mapping);
1007 truncate_setsize(inode, attr->ia_size);
1009 if (attr->ia_size <= old_size)
1010 err = f2fs_truncate(inode);
1012 * do not trim all blocks after i_size if target size is
1013 * larger than i_size.
1015 filemap_invalidate_unlock(inode->i_mapping);
1016 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1020 spin_lock(&F2FS_I(inode)->i_size_lock);
1021 inode->i_mtime = inode->i_ctime = current_time(inode);
1022 F2FS_I(inode)->last_disk_size = i_size_read(inode);
1023 spin_unlock(&F2FS_I(inode)->i_size_lock);
1026 __setattr_copy(mnt_userns, inode, attr);
1028 if (attr->ia_valid & ATTR_MODE) {
1029 err = posix_acl_chmod(mnt_userns, dentry, f2fs_get_inode_mode(inode));
1031 if (is_inode_flag_set(inode, FI_ACL_MODE)) {
1033 inode->i_mode = F2FS_I(inode)->i_acl_mode;
1034 clear_inode_flag(inode, FI_ACL_MODE);
1038 /* file size may changed here */
1039 f2fs_mark_inode_dirty_sync(inode, true);
1041 /* inode change will produce dirty node pages flushed by checkpoint */
1042 f2fs_balance_fs(F2FS_I_SB(inode), true);
1047 const struct inode_operations f2fs_file_inode_operations = {
1048 .getattr = f2fs_getattr,
1049 .setattr = f2fs_setattr,
1050 .get_inode_acl = f2fs_get_acl,
1051 .set_acl = f2fs_set_acl,
1052 .listxattr = f2fs_listxattr,
1053 .fiemap = f2fs_fiemap,
1054 .fileattr_get = f2fs_fileattr_get,
1055 .fileattr_set = f2fs_fileattr_set,
1058 static int fill_zero(struct inode *inode, pgoff_t index,
1059 loff_t start, loff_t len)
1061 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1067 f2fs_balance_fs(sbi, true);
1070 page = f2fs_get_new_data_page(inode, NULL, index, false);
1071 f2fs_unlock_op(sbi);
1074 return PTR_ERR(page);
1076 f2fs_wait_on_page_writeback(page, DATA, true, true);
1077 zero_user(page, start, len);
1078 set_page_dirty(page);
1079 f2fs_put_page(page, 1);
1083 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
1087 while (pg_start < pg_end) {
1088 struct dnode_of_data dn;
1089 pgoff_t end_offset, count;
1091 set_new_dnode(&dn, inode, NULL, NULL, 0);
1092 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
1094 if (err == -ENOENT) {
1095 pg_start = f2fs_get_next_page_offset(&dn,
1102 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1103 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
1105 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
1107 f2fs_truncate_data_blocks_range(&dn, count);
1108 f2fs_put_dnode(&dn);
1115 static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
1117 pgoff_t pg_start, pg_end;
1118 loff_t off_start, off_end;
1121 ret = f2fs_convert_inline_inode(inode);
1125 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1126 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1128 off_start = offset & (PAGE_SIZE - 1);
1129 off_end = (offset + len) & (PAGE_SIZE - 1);
1131 if (pg_start == pg_end) {
1132 ret = fill_zero(inode, pg_start, off_start,
1133 off_end - off_start);
1138 ret = fill_zero(inode, pg_start++, off_start,
1139 PAGE_SIZE - off_start);
1144 ret = fill_zero(inode, pg_end, 0, off_end);
1149 if (pg_start < pg_end) {
1150 loff_t blk_start, blk_end;
1151 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1153 f2fs_balance_fs(sbi, true);
1155 blk_start = (loff_t)pg_start << PAGE_SHIFT;
1156 blk_end = (loff_t)pg_end << PAGE_SHIFT;
1158 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1159 filemap_invalidate_lock(inode->i_mapping);
1161 truncate_pagecache_range(inode, blk_start, blk_end - 1);
1164 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
1165 f2fs_unlock_op(sbi);
1167 filemap_invalidate_unlock(inode->i_mapping);
1168 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1175 static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1176 int *do_replace, pgoff_t off, pgoff_t len)
1178 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1179 struct dnode_of_data dn;
1183 set_new_dnode(&dn, inode, NULL, NULL, 0);
1184 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
1185 if (ret && ret != -ENOENT) {
1187 } else if (ret == -ENOENT) {
1188 if (dn.max_level == 0)
1190 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
1191 dn.ofs_in_node, len);
1197 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1198 dn.ofs_in_node, len);
1199 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
1200 *blkaddr = f2fs_data_blkaddr(&dn);
1202 if (__is_valid_data_blkaddr(*blkaddr) &&
1203 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1204 DATA_GENERIC_ENHANCE)) {
1205 f2fs_put_dnode(&dn);
1206 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
1207 return -EFSCORRUPTED;
1210 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
1212 if (f2fs_lfs_mode(sbi)) {
1213 f2fs_put_dnode(&dn);
1217 /* do not invalidate this block address */
1218 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
1222 f2fs_put_dnode(&dn);
1231 static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1232 int *do_replace, pgoff_t off, int len)
1234 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1235 struct dnode_of_data dn;
1238 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1239 if (*do_replace == 0)
1242 set_new_dnode(&dn, inode, NULL, NULL, 0);
1243 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
1245 dec_valid_block_count(sbi, inode, 1);
1246 f2fs_invalidate_blocks(sbi, *blkaddr);
1248 f2fs_update_data_blkaddr(&dn, *blkaddr);
1250 f2fs_put_dnode(&dn);
1255 static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1256 block_t *blkaddr, int *do_replace,
1257 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1259 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1264 if (blkaddr[i] == NULL_ADDR && !full) {
1269 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1270 struct dnode_of_data dn;
1271 struct node_info ni;
1275 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
1276 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
1280 ret = f2fs_get_node_info(sbi, dn.nid, &ni, false);
1282 f2fs_put_dnode(&dn);
1286 ilen = min((pgoff_t)
1287 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1288 dn.ofs_in_node, len - i);
1290 dn.data_blkaddr = f2fs_data_blkaddr(&dn);
1291 f2fs_truncate_data_blocks_range(&dn, 1);
1293 if (do_replace[i]) {
1294 f2fs_i_blocks_write(src_inode,
1296 f2fs_i_blocks_write(dst_inode,
1298 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1299 blkaddr[i], ni.version, true, false);
1305 new_size = (loff_t)(dst + i) << PAGE_SHIFT;
1306 if (dst_inode->i_size < new_size)
1307 f2fs_i_size_write(dst_inode, new_size);
1308 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
1310 f2fs_put_dnode(&dn);
1312 struct page *psrc, *pdst;
1314 psrc = f2fs_get_lock_data_page(src_inode,
1317 return PTR_ERR(psrc);
1318 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
1321 f2fs_put_page(psrc, 1);
1322 return PTR_ERR(pdst);
1324 memcpy_page(pdst, 0, psrc, 0, PAGE_SIZE);
1325 set_page_dirty(pdst);
1326 f2fs_put_page(pdst, 1);
1327 f2fs_put_page(psrc, 1);
1329 ret = f2fs_truncate_hole(src_inode,
1330 src + i, src + i + 1);
1339 static int __exchange_data_block(struct inode *src_inode,
1340 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
1341 pgoff_t len, bool full)
1343 block_t *src_blkaddr;
1349 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
1351 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1352 array_size(olen, sizeof(block_t)),
1357 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1358 array_size(olen, sizeof(int)),
1361 kvfree(src_blkaddr);
1365 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1366 do_replace, src, olen);
1370 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1371 do_replace, src, dst, olen, full);
1379 kvfree(src_blkaddr);
1385 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
1386 kvfree(src_blkaddr);
1391 static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
1393 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1394 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1395 pgoff_t start = offset >> PAGE_SHIFT;
1396 pgoff_t end = (offset + len) >> PAGE_SHIFT;
1399 f2fs_balance_fs(sbi, true);
1401 /* avoid gc operation during block exchange */
1402 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1403 filemap_invalidate_lock(inode->i_mapping);
1406 f2fs_drop_extent_tree(inode);
1407 truncate_pagecache(inode, offset);
1408 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1409 f2fs_unlock_op(sbi);
1411 filemap_invalidate_unlock(inode->i_mapping);
1412 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1416 static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1421 if (offset + len >= i_size_read(inode))
1424 /* collapse range should be aligned to block size of f2fs. */
1425 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1428 ret = f2fs_convert_inline_inode(inode);
1432 /* write out all dirty pages from offset */
1433 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1437 ret = f2fs_do_collapse(inode, offset, len);
1441 /* write out all moved pages, if possible */
1442 filemap_invalidate_lock(inode->i_mapping);
1443 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1444 truncate_pagecache(inode, offset);
1446 new_size = i_size_read(inode) - len;
1447 ret = f2fs_truncate_blocks(inode, new_size, true);
1448 filemap_invalidate_unlock(inode->i_mapping);
1450 f2fs_i_size_write(inode, new_size);
1454 static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1457 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1458 pgoff_t index = start;
1459 unsigned int ofs_in_node = dn->ofs_in_node;
1463 for (; index < end; index++, dn->ofs_in_node++) {
1464 if (f2fs_data_blkaddr(dn) == NULL_ADDR)
1468 dn->ofs_in_node = ofs_in_node;
1469 ret = f2fs_reserve_new_blocks(dn, count);
1473 dn->ofs_in_node = ofs_in_node;
1474 for (index = start; index < end; index++, dn->ofs_in_node++) {
1475 dn->data_blkaddr = f2fs_data_blkaddr(dn);
1477 * f2fs_reserve_new_blocks will not guarantee entire block
1480 if (dn->data_blkaddr == NULL_ADDR) {
1485 if (dn->data_blkaddr == NEW_ADDR)
1488 if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr,
1489 DATA_GENERIC_ENHANCE)) {
1490 ret = -EFSCORRUPTED;
1491 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
1495 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
1496 dn->data_blkaddr = NEW_ADDR;
1497 f2fs_set_data_blkaddr(dn);
1500 f2fs_update_read_extent_cache_range(dn, start, 0, index - start);
1505 static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1508 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1509 struct address_space *mapping = inode->i_mapping;
1510 pgoff_t index, pg_start, pg_end;
1511 loff_t new_size = i_size_read(inode);
1512 loff_t off_start, off_end;
1515 ret = inode_newsize_ok(inode, (len + offset));
1519 ret = f2fs_convert_inline_inode(inode);
1523 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1527 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1528 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1530 off_start = offset & (PAGE_SIZE - 1);
1531 off_end = (offset + len) & (PAGE_SIZE - 1);
1533 if (pg_start == pg_end) {
1534 ret = fill_zero(inode, pg_start, off_start,
1535 off_end - off_start);
1539 new_size = max_t(loff_t, new_size, offset + len);
1542 ret = fill_zero(inode, pg_start++, off_start,
1543 PAGE_SIZE - off_start);
1547 new_size = max_t(loff_t, new_size,
1548 (loff_t)pg_start << PAGE_SHIFT);
1551 for (index = pg_start; index < pg_end;) {
1552 struct dnode_of_data dn;
1553 unsigned int end_offset;
1556 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1557 filemap_invalidate_lock(mapping);
1559 truncate_pagecache_range(inode,
1560 (loff_t)index << PAGE_SHIFT,
1561 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1565 set_new_dnode(&dn, inode, NULL, NULL, 0);
1566 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
1568 f2fs_unlock_op(sbi);
1569 filemap_invalidate_unlock(mapping);
1570 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1574 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1575 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1577 ret = f2fs_do_zero_range(&dn, index, end);
1578 f2fs_put_dnode(&dn);
1580 f2fs_unlock_op(sbi);
1581 filemap_invalidate_unlock(mapping);
1582 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1584 f2fs_balance_fs(sbi, dn.node_changed);
1590 new_size = max_t(loff_t, new_size,
1591 (loff_t)index << PAGE_SHIFT);
1595 ret = fill_zero(inode, pg_end, 0, off_end);
1599 new_size = max_t(loff_t, new_size, offset + len);
1604 if (new_size > i_size_read(inode)) {
1605 if (mode & FALLOC_FL_KEEP_SIZE)
1606 file_set_keep_isize(inode);
1608 f2fs_i_size_write(inode, new_size);
1613 static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1615 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1616 struct address_space *mapping = inode->i_mapping;
1617 pgoff_t nr, pg_start, pg_end, delta, idx;
1621 new_size = i_size_read(inode) + len;
1622 ret = inode_newsize_ok(inode, new_size);
1626 if (offset >= i_size_read(inode))
1629 /* insert range should be aligned to block size of f2fs. */
1630 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1633 ret = f2fs_convert_inline_inode(inode);
1637 f2fs_balance_fs(sbi, true);
1639 filemap_invalidate_lock(mapping);
1640 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
1641 filemap_invalidate_unlock(mapping);
1645 /* write out all dirty pages from offset */
1646 ret = filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
1650 pg_start = offset >> PAGE_SHIFT;
1651 pg_end = (offset + len) >> PAGE_SHIFT;
1652 delta = pg_end - pg_start;
1653 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1655 /* avoid gc operation during block exchange */
1656 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1657 filemap_invalidate_lock(mapping);
1658 truncate_pagecache(inode, offset);
1660 while (!ret && idx > pg_start) {
1661 nr = idx - pg_start;
1667 f2fs_drop_extent_tree(inode);
1669 ret = __exchange_data_block(inode, inode, idx,
1670 idx + delta, nr, false);
1671 f2fs_unlock_op(sbi);
1673 filemap_invalidate_unlock(mapping);
1674 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1676 /* write out all moved pages, if possible */
1677 filemap_invalidate_lock(mapping);
1678 filemap_write_and_wait_range(mapping, offset, LLONG_MAX);
1679 truncate_pagecache(inode, offset);
1680 filemap_invalidate_unlock(mapping);
1683 f2fs_i_size_write(inode, new_size);
1687 static int expand_inode_data(struct inode *inode, loff_t offset,
1688 loff_t len, int mode)
1690 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1691 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
1692 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1693 .m_may_create = true };
1694 struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO,
1695 .init_gc_type = FG_GC,
1696 .should_migrate_blocks = false,
1697 .err_gc_skipped = true,
1698 .nr_free_secs = 0 };
1699 pgoff_t pg_start, pg_end;
1700 loff_t new_size = i_size_read(inode);
1702 block_t expanded = 0;
1705 err = inode_newsize_ok(inode, (len + offset));
1709 err = f2fs_convert_inline_inode(inode);
1713 f2fs_balance_fs(sbi, true);
1715 pg_start = ((unsigned long long)offset) >> PAGE_SHIFT;
1716 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
1717 off_end = (offset + len) & (PAGE_SIZE - 1);
1719 map.m_lblk = pg_start;
1720 map.m_len = pg_end - pg_start;
1727 if (f2fs_is_pinned_file(inode)) {
1728 block_t sec_blks = CAP_BLKS_PER_SEC(sbi);
1729 block_t sec_len = roundup(map.m_len, sec_blks);
1731 map.m_len = sec_blks;
1733 if (has_not_enough_free_secs(sbi, 0,
1734 GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
1735 f2fs_down_write(&sbi->gc_lock);
1736 err = f2fs_gc(sbi, &gc_control);
1737 if (err && err != -ENODATA)
1741 f2fs_down_write(&sbi->pin_sem);
1744 f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
1745 f2fs_unlock_op(sbi);
1747 map.m_seg_type = CURSEG_COLD_DATA_PINNED;
1748 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
1749 file_dont_truncate(inode);
1751 f2fs_up_write(&sbi->pin_sem);
1753 expanded += map.m_len;
1754 sec_len -= map.m_len;
1755 map.m_lblk += map.m_len;
1756 if (!err && sec_len)
1759 map.m_len = expanded;
1761 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
1762 expanded = map.m_len;
1771 last_off = pg_start + expanded - 1;
1773 /* update new size to the failed position */
1774 new_size = (last_off == pg_end) ? offset + len :
1775 (loff_t)(last_off + 1) << PAGE_SHIFT;
1777 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
1780 if (new_size > i_size_read(inode)) {
1781 if (mode & FALLOC_FL_KEEP_SIZE)
1782 file_set_keep_isize(inode);
1784 f2fs_i_size_write(inode, new_size);
1790 static long f2fs_fallocate(struct file *file, int mode,
1791 loff_t offset, loff_t len)
1793 struct inode *inode = file_inode(file);
1796 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1798 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1800 if (!f2fs_is_compress_backend_ready(inode))
1803 /* f2fs only support ->fallocate for regular file */
1804 if (!S_ISREG(inode->i_mode))
1807 if (IS_ENCRYPTED(inode) &&
1808 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
1812 * Pinned file should not support partial trucation since the block
1813 * can be used by applications.
1815 if ((f2fs_compressed_file(inode) || f2fs_is_pinned_file(inode)) &&
1816 (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
1817 FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
1820 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
1821 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1822 FALLOC_FL_INSERT_RANGE))
1827 ret = file_modified(file);
1831 if (mode & FALLOC_FL_PUNCH_HOLE) {
1832 if (offset >= inode->i_size)
1835 ret = punch_hole(inode, offset, len);
1836 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1837 ret = f2fs_collapse_range(inode, offset, len);
1838 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1839 ret = f2fs_zero_range(inode, offset, len, mode);
1840 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1841 ret = f2fs_insert_range(inode, offset, len);
1843 ret = expand_inode_data(inode, offset, len, mode);
1847 inode->i_mtime = inode->i_ctime = current_time(inode);
1848 f2fs_mark_inode_dirty_sync(inode, false);
1849 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1853 inode_unlock(inode);
1855 trace_f2fs_fallocate(inode, mode, offset, len, ret);
1859 static int f2fs_release_file(struct inode *inode, struct file *filp)
1862 * f2fs_relase_file is called at every close calls. So we should
1863 * not drop any inmemory pages by close called by other process.
1865 if (!(filp->f_mode & FMODE_WRITE) ||
1866 atomic_read(&inode->i_writecount) != 1)
1869 f2fs_abort_atomic_write(inode, true);
1873 static int f2fs_file_flush(struct file *file, fl_owner_t id)
1875 struct inode *inode = file_inode(file);
1878 * If the process doing a transaction is crashed, we should do
1879 * roll-back. Otherwise, other reader/write can see corrupted database
1880 * until all the writers close its file. Since this should be done
1881 * before dropping file lock, it needs to do in ->flush.
1883 if (F2FS_I(inode)->atomic_write_task == current)
1884 f2fs_abort_atomic_write(inode, true);
1888 static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
1890 struct f2fs_inode_info *fi = F2FS_I(inode);
1891 u32 masked_flags = fi->i_flags & mask;
1893 /* mask can be shrunk by flags_valid selector */
1896 /* Is it quota file? Do not allow user to mess with it */
1897 if (IS_NOQUOTA(inode))
1900 if ((iflags ^ masked_flags) & F2FS_CASEFOLD_FL) {
1901 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1903 if (!f2fs_empty_dir(inode))
1907 if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
1908 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
1910 if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
1914 if ((iflags ^ masked_flags) & F2FS_COMPR_FL) {
1915 if (masked_flags & F2FS_COMPR_FL) {
1916 if (!f2fs_disable_compressed_file(inode))
1919 /* try to convert inline_data to support compression */
1920 int err = f2fs_convert_inline_inode(inode);
1923 if (!f2fs_may_compress(inode))
1925 if (S_ISREG(inode->i_mode) && F2FS_HAS_BLOCKS(inode))
1927 if (set_compress_context(inode))
1932 fi->i_flags = iflags | (fi->i_flags & ~mask);
1933 f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
1934 (fi->i_flags & F2FS_NOCOMP_FL));
1936 if (fi->i_flags & F2FS_PROJINHERIT_FL)
1937 set_inode_flag(inode, FI_PROJ_INHERIT);
1939 clear_inode_flag(inode, FI_PROJ_INHERIT);
1941 inode->i_ctime = current_time(inode);
1942 f2fs_set_inode_flags(inode);
1943 f2fs_mark_inode_dirty_sync(inode, true);
1947 /* FS_IOC_[GS]ETFLAGS and FS_IOC_FS[GS]ETXATTR support */
1950 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1951 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1952 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1953 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
1955 * Translating flags to fsx_flags value used by FS_IOC_FSGETXATTR and
1956 * FS_IOC_FSSETXATTR is done by the VFS.
1959 static const struct {
1962 } f2fs_fsflags_map[] = {
1963 { F2FS_COMPR_FL, FS_COMPR_FL },
1964 { F2FS_SYNC_FL, FS_SYNC_FL },
1965 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1966 { F2FS_APPEND_FL, FS_APPEND_FL },
1967 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1968 { F2FS_NOATIME_FL, FS_NOATIME_FL },
1969 { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
1970 { F2FS_INDEX_FL, FS_INDEX_FL },
1971 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1972 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
1973 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
1976 #define F2FS_GETTABLE_FS_FL ( \
1986 FS_PROJINHERIT_FL | \
1988 FS_INLINE_DATA_FL | \
1993 #define F2FS_SETTABLE_FS_FL ( \
2002 FS_PROJINHERIT_FL | \
2005 /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
2006 static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
2011 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
2012 if (iflags & f2fs_fsflags_map[i].iflag)
2013 fsflags |= f2fs_fsflags_map[i].fsflag;
2018 /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
2019 static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
2024 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
2025 if (fsflags & f2fs_fsflags_map[i].fsflag)
2026 iflags |= f2fs_fsflags_map[i].iflag;
2031 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
2033 struct inode *inode = file_inode(filp);
2035 return put_user(inode->i_generation, (int __user *)arg);
2038 static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate)
2040 struct inode *inode = file_inode(filp);
2041 struct user_namespace *mnt_userns = file_mnt_user_ns(filp);
2042 struct f2fs_inode_info *fi = F2FS_I(inode);
2043 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2044 struct inode *pinode;
2048 if (!inode_owner_or_capable(mnt_userns, inode))
2051 if (!S_ISREG(inode->i_mode))
2054 if (filp->f_flags & O_DIRECT)
2057 ret = mnt_want_write_file(filp);
2063 if (!f2fs_disable_compressed_file(inode)) {
2068 if (f2fs_is_atomic_file(inode))
2071 ret = f2fs_convert_inline_inode(inode);
2075 f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
2078 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
2079 * f2fs_is_atomic_file.
2081 if (get_dirty_pages(inode))
2082 f2fs_warn(sbi, "Unexpected flush for atomic writes: ino=%lu, npages=%u",
2083 inode->i_ino, get_dirty_pages(inode));
2084 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
2086 f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
2090 /* Create a COW inode for atomic write */
2091 pinode = f2fs_iget(inode->i_sb, fi->i_pino);
2092 if (IS_ERR(pinode)) {
2093 f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
2094 ret = PTR_ERR(pinode);
2098 ret = f2fs_get_tmpfile(mnt_userns, pinode, &fi->cow_inode);
2101 f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
2105 f2fs_write_inode(inode, NULL);
2107 stat_inc_atomic_inode(inode);
2109 set_inode_flag(inode, FI_ATOMIC_FILE);
2110 set_inode_flag(fi->cow_inode, FI_COW_FILE);
2111 clear_inode_flag(fi->cow_inode, FI_INLINE_DATA);
2113 isize = i_size_read(inode);
2114 fi->original_i_size = isize;
2116 set_inode_flag(inode, FI_ATOMIC_REPLACE);
2117 truncate_inode_pages_final(inode->i_mapping);
2118 f2fs_i_size_write(inode, 0);
2121 f2fs_i_size_write(fi->cow_inode, isize);
2123 f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
2125 f2fs_update_time(sbi, REQ_TIME);
2126 fi->atomic_write_task = current;
2127 stat_update_max_atomic_write(inode);
2128 fi->atomic_write_cnt = 0;
2130 inode_unlock(inode);
2131 mnt_drop_write_file(filp);
2135 static int f2fs_ioc_commit_atomic_write(struct file *filp)
2137 struct inode *inode = file_inode(filp);
2138 struct user_namespace *mnt_userns = file_mnt_user_ns(filp);
2141 if (!inode_owner_or_capable(mnt_userns, inode))
2144 ret = mnt_want_write_file(filp);
2148 f2fs_balance_fs(F2FS_I_SB(inode), true);
2152 if (f2fs_is_atomic_file(inode)) {
2153 ret = f2fs_commit_atomic_write(inode);
2155 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
2157 f2fs_abort_atomic_write(inode, ret);
2159 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
2162 inode_unlock(inode);
2163 mnt_drop_write_file(filp);
2167 static int f2fs_ioc_abort_atomic_write(struct file *filp)
2169 struct inode *inode = file_inode(filp);
2170 struct user_namespace *mnt_userns = file_mnt_user_ns(filp);
2173 if (!inode_owner_or_capable(mnt_userns, inode))
2176 ret = mnt_want_write_file(filp);
2182 f2fs_abort_atomic_write(inode, true);
2184 inode_unlock(inode);
2186 mnt_drop_write_file(filp);
2187 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2191 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2193 struct inode *inode = file_inode(filp);
2194 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2195 struct super_block *sb = sbi->sb;
2199 if (!capable(CAP_SYS_ADMIN))
2202 if (get_user(in, (__u32 __user *)arg))
2205 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2206 ret = mnt_want_write_file(filp);
2208 if (ret == -EROFS) {
2210 f2fs_stop_checkpoint(sbi, false,
2211 STOP_CP_REASON_SHUTDOWN);
2212 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2213 trace_f2fs_shutdown(sbi, in, ret);
2220 case F2FS_GOING_DOWN_FULLSYNC:
2221 ret = freeze_bdev(sb->s_bdev);
2224 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN);
2225 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2226 thaw_bdev(sb->s_bdev);
2228 case F2FS_GOING_DOWN_METASYNC:
2229 /* do checkpoint only */
2230 ret = f2fs_sync_fs(sb, 1);
2233 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN);
2234 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2236 case F2FS_GOING_DOWN_NOSYNC:
2237 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN);
2238 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2240 case F2FS_GOING_DOWN_METAFLUSH:
2241 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
2242 f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_SHUTDOWN);
2243 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2245 case F2FS_GOING_DOWN_NEED_FSCK:
2246 set_sbi_flag(sbi, SBI_NEED_FSCK);
2247 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2248 set_sbi_flag(sbi, SBI_IS_DIRTY);
2249 /* do checkpoint only */
2250 ret = f2fs_sync_fs(sb, 1);
2257 f2fs_stop_gc_thread(sbi);
2258 f2fs_stop_discard_thread(sbi);
2260 f2fs_drop_discard_cmd(sbi);
2261 clear_opt(sbi, DISCARD);
2263 f2fs_update_time(sbi, REQ_TIME);
2265 if (in != F2FS_GOING_DOWN_FULLSYNC)
2266 mnt_drop_write_file(filp);
2268 trace_f2fs_shutdown(sbi, in, ret);
2273 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2275 struct inode *inode = file_inode(filp);
2276 struct super_block *sb = inode->i_sb;
2277 struct fstrim_range range;
2280 if (!capable(CAP_SYS_ADMIN))
2283 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
2286 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2290 ret = mnt_want_write_file(filp);
2294 range.minlen = max((unsigned int)range.minlen,
2295 bdev_discard_granularity(sb->s_bdev));
2296 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
2297 mnt_drop_write_file(filp);
2301 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2304 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2308 static bool uuid_is_nonzero(__u8 u[16])
2312 for (i = 0; i < 16; i++)
2318 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2320 struct inode *inode = file_inode(filp);
2322 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
2325 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2327 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
2330 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2332 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2334 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
2337 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2339 struct inode *inode = file_inode(filp);
2340 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2343 if (!f2fs_sb_has_encrypt(sbi))
2346 err = mnt_want_write_file(filp);
2350 f2fs_down_write(&sbi->sb_lock);
2352 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2355 /* update superblock with uuid */
2356 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2358 err = f2fs_commit_super(sbi, false);
2361 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
2365 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2369 f2fs_up_write(&sbi->sb_lock);
2370 mnt_drop_write_file(filp);
2374 static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
2377 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2380 return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
2383 static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
2385 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2388 return fscrypt_ioctl_add_key(filp, (void __user *)arg);
2391 static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
2393 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2396 return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
2399 static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
2402 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2405 return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
2408 static int f2fs_ioc_get_encryption_key_status(struct file *filp,
2411 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2414 return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
2417 static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
2419 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2422 return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
2425 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2427 struct inode *inode = file_inode(filp);
2428 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2429 struct f2fs_gc_control gc_control = { .victim_segno = NULL_SEGNO,
2431 .should_migrate_blocks = false,
2432 .nr_free_secs = 0 };
2436 if (!capable(CAP_SYS_ADMIN))
2439 if (get_user(sync, (__u32 __user *)arg))
2442 if (f2fs_readonly(sbi->sb))
2445 ret = mnt_want_write_file(filp);
2450 if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
2455 f2fs_down_write(&sbi->gc_lock);
2458 gc_control.init_gc_type = sync ? FG_GC : BG_GC;
2459 gc_control.err_gc_skipped = sync;
2460 ret = f2fs_gc(sbi, &gc_control);
2462 mnt_drop_write_file(filp);
2466 static int __f2fs_ioc_gc_range(struct file *filp, struct f2fs_gc_range *range)
2468 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
2469 struct f2fs_gc_control gc_control = {
2470 .init_gc_type = range->sync ? FG_GC : BG_GC,
2472 .should_migrate_blocks = false,
2473 .err_gc_skipped = range->sync,
2474 .nr_free_secs = 0 };
2478 if (!capable(CAP_SYS_ADMIN))
2480 if (f2fs_readonly(sbi->sb))
2483 end = range->start + range->len;
2484 if (end < range->start || range->start < MAIN_BLKADDR(sbi) ||
2485 end >= MAX_BLKADDR(sbi))
2488 ret = mnt_want_write_file(filp);
2494 if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
2499 f2fs_down_write(&sbi->gc_lock);
2502 gc_control.victim_segno = GET_SEGNO(sbi, range->start);
2503 ret = f2fs_gc(sbi, &gc_control);
2509 range->start += CAP_BLKS_PER_SEC(sbi);
2510 if (range->start <= end)
2513 mnt_drop_write_file(filp);
2517 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2519 struct f2fs_gc_range range;
2521 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2524 return __f2fs_ioc_gc_range(filp, &range);
2527 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
2529 struct inode *inode = file_inode(filp);
2530 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2533 if (!capable(CAP_SYS_ADMIN))
2536 if (f2fs_readonly(sbi->sb))
2539 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2540 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
2544 ret = mnt_want_write_file(filp);
2548 ret = f2fs_sync_fs(sbi->sb, 1);
2550 mnt_drop_write_file(filp);
2554 static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2556 struct f2fs_defragment *range)
2558 struct inode *inode = file_inode(filp);
2559 struct f2fs_map_blocks map = { .m_next_extent = NULL,
2560 .m_seg_type = NO_CHECK_TYPE,
2561 .m_may_create = false };
2562 struct extent_info ei = {};
2563 pgoff_t pg_start, pg_end, next_pgofs;
2564 unsigned int blk_per_seg = sbi->blocks_per_seg;
2565 unsigned int total = 0, sec_num;
2566 block_t blk_end = 0;
2567 bool fragmented = false;
2570 pg_start = range->start >> PAGE_SHIFT;
2571 pg_end = (range->start + range->len) >> PAGE_SHIFT;
2573 f2fs_balance_fs(sbi, true);
2577 /* if in-place-update policy is enabled, don't waste time here */
2578 set_inode_flag(inode, FI_OPU_WRITE);
2579 if (f2fs_should_update_inplace(inode, NULL)) {
2584 /* writeback all dirty pages in the range */
2585 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
2586 range->start + range->len - 1);
2591 * lookup mapping info in extent cache, skip defragmenting if physical
2592 * block addresses are continuous.
2594 if (f2fs_lookup_read_extent_cache(inode, pg_start, &ei)) {
2595 if (ei.fofs + ei.len >= pg_end)
2599 map.m_lblk = pg_start;
2600 map.m_next_pgofs = &next_pgofs;
2603 * lookup mapping info in dnode page cache, skip defragmenting if all
2604 * physical block addresses are continuous even if there are hole(s)
2605 * in logical blocks.
2607 while (map.m_lblk < pg_end) {
2608 map.m_len = pg_end - map.m_lblk;
2609 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2613 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2614 map.m_lblk = next_pgofs;
2618 if (blk_end && blk_end != map.m_pblk)
2621 /* record total count of block that we're going to move */
2624 blk_end = map.m_pblk + map.m_len;
2626 map.m_lblk += map.m_len;
2634 sec_num = DIV_ROUND_UP(total, CAP_BLKS_PER_SEC(sbi));
2637 * make sure there are enough free section for LFS allocation, this can
2638 * avoid defragment running in SSR mode when free section are allocated
2641 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
2646 map.m_lblk = pg_start;
2647 map.m_len = pg_end - pg_start;
2650 while (map.m_lblk < pg_end) {
2655 map.m_len = pg_end - map.m_lblk;
2656 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2660 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2661 map.m_lblk = next_pgofs;
2665 set_inode_flag(inode, FI_SKIP_WRITES);
2668 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2671 page = f2fs_get_lock_data_page(inode, idx, true);
2673 err = PTR_ERR(page);
2677 set_page_dirty(page);
2678 set_page_private_gcing(page);
2679 f2fs_put_page(page, 1);
2688 if (map.m_lblk < pg_end && cnt < blk_per_seg)
2691 clear_inode_flag(inode, FI_SKIP_WRITES);
2693 err = filemap_fdatawrite(inode->i_mapping);
2698 clear_inode_flag(inode, FI_SKIP_WRITES);
2700 clear_inode_flag(inode, FI_OPU_WRITE);
2701 inode_unlock(inode);
2703 range->len = (u64)total << PAGE_SHIFT;
2707 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2709 struct inode *inode = file_inode(filp);
2710 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2711 struct f2fs_defragment range;
2714 if (!capable(CAP_SYS_ADMIN))
2717 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
2720 if (f2fs_readonly(sbi->sb))
2723 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
2727 /* verify alignment of offset & size */
2728 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2731 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
2732 max_file_blocks(inode)))
2735 err = mnt_want_write_file(filp);
2739 err = f2fs_defragment_range(sbi, filp, &range);
2740 mnt_drop_write_file(filp);
2742 f2fs_update_time(sbi, REQ_TIME);
2746 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2753 static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2754 struct file *file_out, loff_t pos_out, size_t len)
2756 struct inode *src = file_inode(file_in);
2757 struct inode *dst = file_inode(file_out);
2758 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2759 size_t olen = len, dst_max_i_size = 0;
2763 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2764 src->i_sb != dst->i_sb)
2767 if (unlikely(f2fs_readonly(src->i_sb)))
2770 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2773 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
2776 if (pos_out < 0 || pos_in < 0)
2780 if (pos_in == pos_out)
2782 if (pos_out > pos_in && pos_out < pos_in + len)
2789 if (!inode_trylock(dst))
2794 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2797 olen = len = src->i_size - pos_in;
2798 if (pos_in + len == src->i_size)
2799 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2805 dst_osize = dst->i_size;
2806 if (pos_out + olen > dst->i_size)
2807 dst_max_i_size = pos_out + olen;
2809 /* verify the end result is block aligned */
2810 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2811 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2812 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2815 ret = f2fs_convert_inline_inode(src);
2819 ret = f2fs_convert_inline_inode(dst);
2823 /* write out all dirty pages from offset */
2824 ret = filemap_write_and_wait_range(src->i_mapping,
2825 pos_in, pos_in + len);
2829 ret = filemap_write_and_wait_range(dst->i_mapping,
2830 pos_out, pos_out + len);
2834 f2fs_balance_fs(sbi, true);
2836 f2fs_down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2839 if (!f2fs_down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2844 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2845 pos_out >> F2FS_BLKSIZE_BITS,
2846 len >> F2FS_BLKSIZE_BITS, false);
2850 f2fs_i_size_write(dst, dst_max_i_size);
2851 else if (dst_osize != dst->i_size)
2852 f2fs_i_size_write(dst, dst_osize);
2854 f2fs_unlock_op(sbi);
2857 f2fs_up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
2859 f2fs_up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2868 static int __f2fs_ioc_move_range(struct file *filp,
2869 struct f2fs_move_range *range)
2874 if (!(filp->f_mode & FMODE_READ) ||
2875 !(filp->f_mode & FMODE_WRITE))
2878 dst = fdget(range->dst_fd);
2882 if (!(dst.file->f_mode & FMODE_WRITE)) {
2887 err = mnt_want_write_file(filp);
2891 err = f2fs_move_file_range(filp, range->pos_in, dst.file,
2892 range->pos_out, range->len);
2894 mnt_drop_write_file(filp);
2900 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2902 struct f2fs_move_range range;
2904 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2907 return __f2fs_ioc_move_range(filp, &range);
2910 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2912 struct inode *inode = file_inode(filp);
2913 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2914 struct sit_info *sm = SIT_I(sbi);
2915 unsigned int start_segno = 0, end_segno = 0;
2916 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2917 struct f2fs_flush_device range;
2918 struct f2fs_gc_control gc_control = {
2919 .init_gc_type = FG_GC,
2920 .should_migrate_blocks = true,
2921 .err_gc_skipped = true,
2922 .nr_free_secs = 0 };
2925 if (!capable(CAP_SYS_ADMIN))
2928 if (f2fs_readonly(sbi->sb))
2931 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2934 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2938 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2939 __is_large_section(sbi)) {
2940 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2941 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
2945 ret = mnt_want_write_file(filp);
2949 if (range.dev_num != 0)
2950 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2951 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2953 start_segno = sm->last_victim[FLUSH_DEVICE];
2954 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2955 start_segno = dev_start_segno;
2956 end_segno = min(start_segno + range.segments, dev_end_segno);
2958 while (start_segno < end_segno) {
2959 if (!f2fs_down_write_trylock(&sbi->gc_lock)) {
2963 sm->last_victim[GC_CB] = end_segno + 1;
2964 sm->last_victim[GC_GREEDY] = end_segno + 1;
2965 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2967 gc_control.victim_segno = start_segno;
2968 ret = f2fs_gc(sbi, &gc_control);
2976 mnt_drop_write_file(filp);
2980 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2982 struct inode *inode = file_inode(filp);
2983 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2985 /* Must validate to set it with SQLite behavior in Android. */
2986 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2988 return put_user(sb_feature, (u32 __user *)arg);
2992 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2994 struct dquot *transfer_to[MAXQUOTAS] = {};
2995 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2996 struct super_block *sb = sbi->sb;
2999 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
3000 if (!IS_ERR(transfer_to[PRJQUOTA])) {
3001 err = __dquot_transfer(inode, transfer_to);
3003 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
3004 dqput(transfer_to[PRJQUOTA]);
3009 static int f2fs_ioc_setproject(struct inode *inode, __u32 projid)
3011 struct f2fs_inode_info *fi = F2FS_I(inode);
3012 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3013 struct f2fs_inode *ri = NULL;
3017 if (!f2fs_sb_has_project_quota(sbi)) {
3018 if (projid != F2FS_DEF_PROJID)
3024 if (!f2fs_has_extra_attr(inode))
3027 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
3029 if (projid_eq(kprojid, fi->i_projid))
3033 /* Is it quota file? Do not allow user to mess with it */
3034 if (IS_NOQUOTA(inode))
3037 if (!F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
3040 err = f2fs_dquot_initialize(inode);
3045 err = f2fs_transfer_project_quota(inode, kprojid);
3049 fi->i_projid = kprojid;
3050 inode->i_ctime = current_time(inode);
3051 f2fs_mark_inode_dirty_sync(inode, true);
3053 f2fs_unlock_op(sbi);
3057 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
3062 static int f2fs_ioc_setproject(struct inode *inode, __u32 projid)
3064 if (projid != F2FS_DEF_PROJID)
3070 int f2fs_fileattr_get(struct dentry *dentry, struct fileattr *fa)
3072 struct inode *inode = d_inode(dentry);
3073 struct f2fs_inode_info *fi = F2FS_I(inode);
3074 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
3076 if (IS_ENCRYPTED(inode))
3077 fsflags |= FS_ENCRYPT_FL;
3078 if (IS_VERITY(inode))
3079 fsflags |= FS_VERITY_FL;
3080 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
3081 fsflags |= FS_INLINE_DATA_FL;
3082 if (is_inode_flag_set(inode, FI_PIN_FILE))
3083 fsflags |= FS_NOCOW_FL;
3085 fileattr_fill_flags(fa, fsflags & F2FS_GETTABLE_FS_FL);
3087 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
3088 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
3093 int f2fs_fileattr_set(struct user_namespace *mnt_userns,
3094 struct dentry *dentry, struct fileattr *fa)
3096 struct inode *inode = d_inode(dentry);
3097 u32 fsflags = fa->flags, mask = F2FS_SETTABLE_FS_FL;
3101 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
3103 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
3105 if (fsflags & ~F2FS_GETTABLE_FS_FL)
3107 fsflags &= F2FS_SETTABLE_FS_FL;
3108 if (!fa->flags_valid)
3109 mask &= FS_COMMON_FL;
3111 iflags = f2fs_fsflags_to_iflags(fsflags);
3112 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
3115 err = f2fs_setflags_common(inode, iflags, f2fs_fsflags_to_iflags(mask));
3117 err = f2fs_ioc_setproject(inode, fa->fsx_projid);
3122 int f2fs_pin_file_control(struct inode *inode, bool inc)
3124 struct f2fs_inode_info *fi = F2FS_I(inode);
3125 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3127 /* Use i_gc_failures for normal file as a risk signal. */
3129 f2fs_i_gc_failures_write(inode,
3130 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
3132 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
3133 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
3134 __func__, inode->i_ino,
3135 fi->i_gc_failures[GC_FAILURE_PIN]);
3136 clear_inode_flag(inode, FI_PIN_FILE);
3142 static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
3144 struct inode *inode = file_inode(filp);
3148 if (get_user(pin, (__u32 __user *)arg))
3151 if (!S_ISREG(inode->i_mode))
3154 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
3157 ret = mnt_want_write_file(filp);
3164 clear_inode_flag(inode, FI_PIN_FILE);
3165 f2fs_i_gc_failures_write(inode, 0);
3169 if (f2fs_should_update_outplace(inode, NULL)) {
3174 if (f2fs_pin_file_control(inode, false)) {
3179 ret = f2fs_convert_inline_inode(inode);
3183 if (!f2fs_disable_compressed_file(inode)) {
3188 set_inode_flag(inode, FI_PIN_FILE);
3189 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3191 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3193 inode_unlock(inode);
3194 mnt_drop_write_file(filp);
3198 static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3200 struct inode *inode = file_inode(filp);
3203 if (is_inode_flag_set(inode, FI_PIN_FILE))
3204 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3205 return put_user(pin, (u32 __user *)arg);
3208 int f2fs_precache_extents(struct inode *inode)
3210 struct f2fs_inode_info *fi = F2FS_I(inode);
3211 struct f2fs_map_blocks map;
3212 pgoff_t m_next_extent;
3216 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3220 map.m_next_pgofs = NULL;
3221 map.m_next_extent = &m_next_extent;
3222 map.m_seg_type = NO_CHECK_TYPE;
3223 map.m_may_create = false;
3224 end = max_file_blocks(inode);
3226 while (map.m_lblk < end) {
3227 map.m_len = end - map.m_lblk;
3229 f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
3230 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
3231 f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
3235 map.m_lblk = m_next_extent;
3241 static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3243 return f2fs_precache_extents(file_inode(filp));
3246 static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3248 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3251 if (!capable(CAP_SYS_ADMIN))
3254 if (f2fs_readonly(sbi->sb))
3257 if (copy_from_user(&block_count, (void __user *)arg,
3258 sizeof(block_count)))
3261 return f2fs_resize_fs(sbi, block_count);
3264 static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
3266 struct inode *inode = file_inode(filp);
3268 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3270 if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
3271 f2fs_warn(F2FS_I_SB(inode),
3272 "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem",
3277 return fsverity_ioctl_enable(filp, (const void __user *)arg);
3280 static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
3282 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3285 return fsverity_ioctl_measure(filp, (void __user *)arg);
3288 static int f2fs_ioc_read_verity_metadata(struct file *filp, unsigned long arg)
3290 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3293 return fsverity_ioctl_read_metadata(filp, (const void __user *)arg);
3296 static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
3298 struct inode *inode = file_inode(filp);
3299 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3304 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3308 f2fs_down_read(&sbi->sb_lock);
3309 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3310 ARRAY_SIZE(sbi->raw_super->volume_name),
3311 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3312 f2fs_up_read(&sbi->sb_lock);
3314 if (copy_to_user((char __user *)arg, vbuf,
3315 min(FSLABEL_MAX, count)))
3322 static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
3324 struct inode *inode = file_inode(filp);
3325 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3329 if (!capable(CAP_SYS_ADMIN))
3332 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3334 return PTR_ERR(vbuf);
3336 err = mnt_want_write_file(filp);
3340 f2fs_down_write(&sbi->sb_lock);
3342 memset(sbi->raw_super->volume_name, 0,
3343 sizeof(sbi->raw_super->volume_name));
3344 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3345 sbi->raw_super->volume_name,
3346 ARRAY_SIZE(sbi->raw_super->volume_name));
3348 err = f2fs_commit_super(sbi, false);
3350 f2fs_up_write(&sbi->sb_lock);
3352 mnt_drop_write_file(filp);
3358 static int f2fs_get_compress_blocks(struct file *filp, unsigned long arg)
3360 struct inode *inode = file_inode(filp);
3363 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3366 if (!f2fs_compressed_file(inode))
3369 blocks = atomic_read(&F2FS_I(inode)->i_compr_blocks);
3370 return put_user(blocks, (u64 __user *)arg);
3373 static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3375 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3376 unsigned int released_blocks = 0;
3377 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3381 for (i = 0; i < count; i++) {
3382 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3383 dn->ofs_in_node + i);
3385 if (!__is_valid_data_blkaddr(blkaddr))
3387 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3388 DATA_GENERIC_ENHANCE))) {
3389 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
3390 return -EFSCORRUPTED;
3395 int compr_blocks = 0;
3397 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3398 blkaddr = f2fs_data_blkaddr(dn);
3401 if (blkaddr == COMPRESS_ADDR)
3403 dn->ofs_in_node += cluster_size;
3407 if (__is_valid_data_blkaddr(blkaddr))
3410 if (blkaddr != NEW_ADDR)
3413 dn->data_blkaddr = NULL_ADDR;
3414 f2fs_set_data_blkaddr(dn);
3417 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, false);
3418 dec_valid_block_count(sbi, dn->inode,
3419 cluster_size - compr_blocks);
3421 released_blocks += cluster_size - compr_blocks;
3423 count -= cluster_size;
3426 return released_blocks;
3429 static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
3431 struct inode *inode = file_inode(filp);
3432 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3433 pgoff_t page_idx = 0, last_idx;
3434 unsigned int released_blocks = 0;
3438 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3441 if (!f2fs_compressed_file(inode))
3444 if (f2fs_readonly(sbi->sb))
3447 ret = mnt_want_write_file(filp);
3451 f2fs_balance_fs(F2FS_I_SB(inode), true);
3455 writecount = atomic_read(&inode->i_writecount);
3456 if ((filp->f_mode & FMODE_WRITE && writecount != 1) ||
3457 (!(filp->f_mode & FMODE_WRITE) && writecount)) {
3462 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
3467 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
3471 set_inode_flag(inode, FI_COMPRESS_RELEASED);
3472 inode->i_ctime = current_time(inode);
3473 f2fs_mark_inode_dirty_sync(inode, true);
3475 if (!atomic_read(&F2FS_I(inode)->i_compr_blocks))
3478 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3479 filemap_invalidate_lock(inode->i_mapping);
3481 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3483 while (page_idx < last_idx) {
3484 struct dnode_of_data dn;
3485 pgoff_t end_offset, count;
3487 set_new_dnode(&dn, inode, NULL, NULL, 0);
3488 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3490 if (ret == -ENOENT) {
3491 page_idx = f2fs_get_next_page_offset(&dn,
3499 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3500 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
3501 count = round_up(count, F2FS_I(inode)->i_cluster_size);
3503 ret = release_compress_blocks(&dn, count);
3505 f2fs_put_dnode(&dn);
3511 released_blocks += ret;
3514 filemap_invalidate_unlock(inode->i_mapping);
3515 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3517 inode_unlock(inode);
3519 mnt_drop_write_file(filp);
3522 ret = put_user(released_blocks, (u64 __user *)arg);
3523 } else if (released_blocks &&
3524 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
3525 set_sbi_flag(sbi, SBI_NEED_FSCK);
3526 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
3527 "iblocks=%llu, released=%u, compr_blocks=%u, "
3529 __func__, inode->i_ino, inode->i_blocks,
3531 atomic_read(&F2FS_I(inode)->i_compr_blocks));
3537 static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
3539 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
3540 unsigned int reserved_blocks = 0;
3541 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
3545 for (i = 0; i < count; i++) {
3546 blkaddr = data_blkaddr(dn->inode, dn->node_page,
3547 dn->ofs_in_node + i);
3549 if (!__is_valid_data_blkaddr(blkaddr))
3551 if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
3552 DATA_GENERIC_ENHANCE))) {
3553 f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
3554 return -EFSCORRUPTED;
3559 int compr_blocks = 0;
3563 for (i = 0; i < cluster_size; i++, dn->ofs_in_node++) {
3564 blkaddr = f2fs_data_blkaddr(dn);
3567 if (blkaddr == COMPRESS_ADDR)
3569 dn->ofs_in_node += cluster_size;
3573 if (__is_valid_data_blkaddr(blkaddr)) {
3578 dn->data_blkaddr = NEW_ADDR;
3579 f2fs_set_data_blkaddr(dn);
3582 reserved = cluster_size - compr_blocks;
3583 ret = inc_valid_block_count(sbi, dn->inode, &reserved);
3587 if (reserved != cluster_size - compr_blocks)
3590 f2fs_i_compr_blocks_update(dn->inode, compr_blocks, true);
3592 reserved_blocks += reserved;
3594 count -= cluster_size;
3597 return reserved_blocks;
3600 static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
3602 struct inode *inode = file_inode(filp);
3603 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3604 pgoff_t page_idx = 0, last_idx;
3605 unsigned int reserved_blocks = 0;
3608 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3611 if (!f2fs_compressed_file(inode))
3614 if (f2fs_readonly(sbi->sb))
3617 ret = mnt_want_write_file(filp);
3621 if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
3624 f2fs_balance_fs(F2FS_I_SB(inode), true);
3628 if (!is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
3633 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3634 filemap_invalidate_lock(inode->i_mapping);
3636 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
3638 while (page_idx < last_idx) {
3639 struct dnode_of_data dn;
3640 pgoff_t end_offset, count;
3642 set_new_dnode(&dn, inode, NULL, NULL, 0);
3643 ret = f2fs_get_dnode_of_data(&dn, page_idx, LOOKUP_NODE);
3645 if (ret == -ENOENT) {
3646 page_idx = f2fs_get_next_page_offset(&dn,
3654 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3655 count = min(end_offset - dn.ofs_in_node, last_idx - page_idx);
3656 count = round_up(count, F2FS_I(inode)->i_cluster_size);
3658 ret = reserve_compress_blocks(&dn, count);
3660 f2fs_put_dnode(&dn);
3666 reserved_blocks += ret;
3669 filemap_invalidate_unlock(inode->i_mapping);
3670 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3673 clear_inode_flag(inode, FI_COMPRESS_RELEASED);
3674 inode->i_ctime = current_time(inode);
3675 f2fs_mark_inode_dirty_sync(inode, true);
3678 inode_unlock(inode);
3680 mnt_drop_write_file(filp);
3683 ret = put_user(reserved_blocks, (u64 __user *)arg);
3684 } else if (reserved_blocks &&
3685 atomic_read(&F2FS_I(inode)->i_compr_blocks)) {
3686 set_sbi_flag(sbi, SBI_NEED_FSCK);
3687 f2fs_warn(sbi, "%s: partial blocks were released i_ino=%lx "
3688 "iblocks=%llu, reserved=%u, compr_blocks=%u, "
3690 __func__, inode->i_ino, inode->i_blocks,
3692 atomic_read(&F2FS_I(inode)->i_compr_blocks));
3698 static int f2fs_secure_erase(struct block_device *bdev, struct inode *inode,
3699 pgoff_t off, block_t block, block_t len, u32 flags)
3701 sector_t sector = SECTOR_FROM_BLOCK(block);
3702 sector_t nr_sects = SECTOR_FROM_BLOCK(len);
3705 if (flags & F2FS_TRIM_FILE_DISCARD) {
3706 if (bdev_max_secure_erase_sectors(bdev))
3707 ret = blkdev_issue_secure_erase(bdev, sector, nr_sects,
3710 ret = blkdev_issue_discard(bdev, sector, nr_sects,
3714 if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT)) {
3715 if (IS_ENCRYPTED(inode))
3716 ret = fscrypt_zeroout_range(inode, off, block, len);
3718 ret = blkdev_issue_zeroout(bdev, sector, nr_sects,
3725 static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
3727 struct inode *inode = file_inode(filp);
3728 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3729 struct address_space *mapping = inode->i_mapping;
3730 struct block_device *prev_bdev = NULL;
3731 struct f2fs_sectrim_range range;
3732 pgoff_t index, pg_end, prev_index = 0;
3733 block_t prev_block = 0, len = 0;
3735 bool to_end = false;
3738 if (!(filp->f_mode & FMODE_WRITE))
3741 if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
3745 if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
3746 !S_ISREG(inode->i_mode))
3749 if (((range.flags & F2FS_TRIM_FILE_DISCARD) &&
3750 !f2fs_hw_support_discard(sbi)) ||
3751 ((range.flags & F2FS_TRIM_FILE_ZEROOUT) &&
3752 IS_ENCRYPTED(inode) && f2fs_is_multi_device(sbi)))
3755 file_start_write(filp);
3758 if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
3759 range.start >= inode->i_size) {
3767 if (inode->i_size - range.start > range.len) {
3768 end_addr = range.start + range.len;
3770 end_addr = range.len == (u64)-1 ?
3771 sbi->sb->s_maxbytes : inode->i_size;
3775 if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
3776 (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
3781 index = F2FS_BYTES_TO_BLK(range.start);
3782 pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
3784 ret = f2fs_convert_inline_inode(inode);
3788 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3789 filemap_invalidate_lock(mapping);
3791 ret = filemap_write_and_wait_range(mapping, range.start,
3792 to_end ? LLONG_MAX : end_addr - 1);
3796 truncate_inode_pages_range(mapping, range.start,
3797 to_end ? -1 : end_addr - 1);
3799 while (index < pg_end) {
3800 struct dnode_of_data dn;
3801 pgoff_t end_offset, count;
3804 set_new_dnode(&dn, inode, NULL, NULL, 0);
3805 ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
3807 if (ret == -ENOENT) {
3808 index = f2fs_get_next_page_offset(&dn, index);
3814 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
3815 count = min(end_offset - dn.ofs_in_node, pg_end - index);
3816 for (i = 0; i < count; i++, index++, dn.ofs_in_node++) {
3817 struct block_device *cur_bdev;
3818 block_t blkaddr = f2fs_data_blkaddr(&dn);
3820 if (!__is_valid_data_blkaddr(blkaddr))
3823 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
3824 DATA_GENERIC_ENHANCE)) {
3825 ret = -EFSCORRUPTED;
3826 f2fs_put_dnode(&dn);
3827 f2fs_handle_error(sbi,
3828 ERROR_INVALID_BLKADDR);
3832 cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
3833 if (f2fs_is_multi_device(sbi)) {
3834 int di = f2fs_target_device_index(sbi, blkaddr);
3836 blkaddr -= FDEV(di).start_blk;
3840 if (prev_bdev == cur_bdev &&
3841 index == prev_index + len &&
3842 blkaddr == prev_block + len) {
3845 ret = f2fs_secure_erase(prev_bdev,
3846 inode, prev_index, prev_block,
3849 f2fs_put_dnode(&dn);
3858 prev_bdev = cur_bdev;
3860 prev_block = blkaddr;
3865 f2fs_put_dnode(&dn);
3867 if (fatal_signal_pending(current)) {
3875 ret = f2fs_secure_erase(prev_bdev, inode, prev_index,
3876 prev_block, len, range.flags);
3878 filemap_invalidate_unlock(mapping);
3879 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
3881 inode_unlock(inode);
3882 file_end_write(filp);
3887 static int f2fs_ioc_get_compress_option(struct file *filp, unsigned long arg)
3889 struct inode *inode = file_inode(filp);
3890 struct f2fs_comp_option option;
3892 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
3895 inode_lock_shared(inode);
3897 if (!f2fs_compressed_file(inode)) {
3898 inode_unlock_shared(inode);
3902 option.algorithm = F2FS_I(inode)->i_compress_algorithm;
3903 option.log_cluster_size = F2FS_I(inode)->i_log_cluster_size;
3905 inode_unlock_shared(inode);
3907 if (copy_to_user((struct f2fs_comp_option __user *)arg, &option,
3914 static int f2fs_ioc_set_compress_option(struct file *filp, unsigned long arg)
3916 struct inode *inode = file_inode(filp);
3917 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3918 struct f2fs_comp_option option;
3921 if (!f2fs_sb_has_compression(sbi))
3924 if (!(filp->f_mode & FMODE_WRITE))
3927 if (copy_from_user(&option, (struct f2fs_comp_option __user *)arg,
3931 if (!f2fs_compressed_file(inode) ||
3932 option.log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
3933 option.log_cluster_size > MAX_COMPRESS_LOG_SIZE ||
3934 option.algorithm >= COMPRESS_MAX)
3937 file_start_write(filp);
3940 if (f2fs_is_mmap_file(inode) || get_dirty_pages(inode)) {
3945 if (inode->i_size != 0) {
3950 F2FS_I(inode)->i_compress_algorithm = option.algorithm;
3951 F2FS_I(inode)->i_log_cluster_size = option.log_cluster_size;
3952 F2FS_I(inode)->i_cluster_size = 1 << option.log_cluster_size;
3953 f2fs_mark_inode_dirty_sync(inode, true);
3955 if (!f2fs_is_compress_backend_ready(inode))
3956 f2fs_warn(sbi, "compression algorithm is successfully set, "
3957 "but current kernel doesn't support this algorithm.");
3959 inode_unlock(inode);
3960 file_end_write(filp);
3965 static int redirty_blocks(struct inode *inode, pgoff_t page_idx, int len)
3967 DEFINE_READAHEAD(ractl, NULL, NULL, inode->i_mapping, page_idx);
3968 struct address_space *mapping = inode->i_mapping;
3970 pgoff_t redirty_idx = page_idx;
3971 int i, page_len = 0, ret = 0;
3973 page_cache_ra_unbounded(&ractl, len, 0);
3975 for (i = 0; i < len; i++, page_idx++) {
3976 page = read_cache_page(mapping, page_idx, NULL, NULL);
3978 ret = PTR_ERR(page);
3984 for (i = 0; i < page_len; i++, redirty_idx++) {
3985 page = find_lock_page(mapping, redirty_idx);
3987 /* It will never fail, when page has pinned above */
3988 f2fs_bug_on(F2FS_I_SB(inode), !page);
3990 set_page_dirty(page);
3991 f2fs_put_page(page, 1);
3992 f2fs_put_page(page, 0);
3998 static int f2fs_ioc_decompress_file(struct file *filp, unsigned long arg)
4000 struct inode *inode = file_inode(filp);
4001 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4002 struct f2fs_inode_info *fi = F2FS_I(inode);
4003 pgoff_t page_idx = 0, last_idx;
4004 unsigned int blk_per_seg = sbi->blocks_per_seg;
4005 int cluster_size = fi->i_cluster_size;
4008 if (!f2fs_sb_has_compression(sbi) ||
4009 F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER)
4012 if (!(filp->f_mode & FMODE_WRITE))
4015 if (!f2fs_compressed_file(inode))
4018 f2fs_balance_fs(F2FS_I_SB(inode), true);
4020 file_start_write(filp);
4023 if (!f2fs_is_compress_backend_ready(inode)) {
4028 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
4033 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
4037 if (!atomic_read(&fi->i_compr_blocks))
4040 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
4042 count = last_idx - page_idx;
4044 int len = min(cluster_size, count);
4046 ret = redirty_blocks(inode, page_idx, len);
4050 if (get_dirty_pages(inode) >= blk_per_seg)
4051 filemap_fdatawrite(inode->i_mapping);
4058 ret = filemap_write_and_wait_range(inode->i_mapping, 0,
4062 f2fs_warn(sbi, "%s: The file might be partially decompressed (errno=%d). Please delete the file.",
4065 inode_unlock(inode);
4066 file_end_write(filp);
4071 static int f2fs_ioc_compress_file(struct file *filp, unsigned long arg)
4073 struct inode *inode = file_inode(filp);
4074 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4075 pgoff_t page_idx = 0, last_idx;
4076 unsigned int blk_per_seg = sbi->blocks_per_seg;
4077 int cluster_size = F2FS_I(inode)->i_cluster_size;
4080 if (!f2fs_sb_has_compression(sbi) ||
4081 F2FS_OPTION(sbi).compress_mode != COMPR_MODE_USER)
4084 if (!(filp->f_mode & FMODE_WRITE))
4087 if (!f2fs_compressed_file(inode))
4090 f2fs_balance_fs(F2FS_I_SB(inode), true);
4092 file_start_write(filp);
4095 if (!f2fs_is_compress_backend_ready(inode)) {
4100 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) {
4105 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
4109 set_inode_flag(inode, FI_ENABLE_COMPRESS);
4111 last_idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
4113 count = last_idx - page_idx;
4115 int len = min(cluster_size, count);
4117 ret = redirty_blocks(inode, page_idx, len);
4121 if (get_dirty_pages(inode) >= blk_per_seg)
4122 filemap_fdatawrite(inode->i_mapping);
4129 ret = filemap_write_and_wait_range(inode->i_mapping, 0,
4132 clear_inode_flag(inode, FI_ENABLE_COMPRESS);
4135 f2fs_warn(sbi, "%s: The file might be partially compressed (errno=%d). Please delete the file.",
4138 inode_unlock(inode);
4139 file_end_write(filp);
4144 static long __f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
4147 case FS_IOC_GETVERSION:
4148 return f2fs_ioc_getversion(filp, arg);
4149 case F2FS_IOC_START_ATOMIC_WRITE:
4150 return f2fs_ioc_start_atomic_write(filp, false);
4151 case F2FS_IOC_START_ATOMIC_REPLACE:
4152 return f2fs_ioc_start_atomic_write(filp, true);
4153 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4154 return f2fs_ioc_commit_atomic_write(filp);
4155 case F2FS_IOC_ABORT_ATOMIC_WRITE:
4156 return f2fs_ioc_abort_atomic_write(filp);
4157 case F2FS_IOC_START_VOLATILE_WRITE:
4158 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4160 case F2FS_IOC_SHUTDOWN:
4161 return f2fs_ioc_shutdown(filp, arg);
4163 return f2fs_ioc_fitrim(filp, arg);
4164 case FS_IOC_SET_ENCRYPTION_POLICY:
4165 return f2fs_ioc_set_encryption_policy(filp, arg);
4166 case FS_IOC_GET_ENCRYPTION_POLICY:
4167 return f2fs_ioc_get_encryption_policy(filp, arg);
4168 case FS_IOC_GET_ENCRYPTION_PWSALT:
4169 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
4170 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4171 return f2fs_ioc_get_encryption_policy_ex(filp, arg);
4172 case FS_IOC_ADD_ENCRYPTION_KEY:
4173 return f2fs_ioc_add_encryption_key(filp, arg);
4174 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4175 return f2fs_ioc_remove_encryption_key(filp, arg);
4176 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4177 return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
4178 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
4179 return f2fs_ioc_get_encryption_key_status(filp, arg);
4180 case FS_IOC_GET_ENCRYPTION_NONCE:
4181 return f2fs_ioc_get_encryption_nonce(filp, arg);
4182 case F2FS_IOC_GARBAGE_COLLECT:
4183 return f2fs_ioc_gc(filp, arg);
4184 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
4185 return f2fs_ioc_gc_range(filp, arg);
4186 case F2FS_IOC_WRITE_CHECKPOINT:
4187 return f2fs_ioc_write_checkpoint(filp, arg);
4188 case F2FS_IOC_DEFRAGMENT:
4189 return f2fs_ioc_defragment(filp, arg);
4190 case F2FS_IOC_MOVE_RANGE:
4191 return f2fs_ioc_move_range(filp, arg);
4192 case F2FS_IOC_FLUSH_DEVICE:
4193 return f2fs_ioc_flush_device(filp, arg);
4194 case F2FS_IOC_GET_FEATURES:
4195 return f2fs_ioc_get_features(filp, arg);
4196 case F2FS_IOC_GET_PIN_FILE:
4197 return f2fs_ioc_get_pin_file(filp, arg);
4198 case F2FS_IOC_SET_PIN_FILE:
4199 return f2fs_ioc_set_pin_file(filp, arg);
4200 case F2FS_IOC_PRECACHE_EXTENTS:
4201 return f2fs_ioc_precache_extents(filp, arg);
4202 case F2FS_IOC_RESIZE_FS:
4203 return f2fs_ioc_resize_fs(filp, arg);
4204 case FS_IOC_ENABLE_VERITY:
4205 return f2fs_ioc_enable_verity(filp, arg);
4206 case FS_IOC_MEASURE_VERITY:
4207 return f2fs_ioc_measure_verity(filp, arg);
4208 case FS_IOC_READ_VERITY_METADATA:
4209 return f2fs_ioc_read_verity_metadata(filp, arg);
4210 case FS_IOC_GETFSLABEL:
4211 return f2fs_ioc_getfslabel(filp, arg);
4212 case FS_IOC_SETFSLABEL:
4213 return f2fs_ioc_setfslabel(filp, arg);
4214 case F2FS_IOC_GET_COMPRESS_BLOCKS:
4215 return f2fs_get_compress_blocks(filp, arg);
4216 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
4217 return f2fs_release_compress_blocks(filp, arg);
4218 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
4219 return f2fs_reserve_compress_blocks(filp, arg);
4220 case F2FS_IOC_SEC_TRIM_FILE:
4221 return f2fs_sec_trim_file(filp, arg);
4222 case F2FS_IOC_GET_COMPRESS_OPTION:
4223 return f2fs_ioc_get_compress_option(filp, arg);
4224 case F2FS_IOC_SET_COMPRESS_OPTION:
4225 return f2fs_ioc_set_compress_option(filp, arg);
4226 case F2FS_IOC_DECOMPRESS_FILE:
4227 return f2fs_ioc_decompress_file(filp, arg);
4228 case F2FS_IOC_COMPRESS_FILE:
4229 return f2fs_ioc_compress_file(filp, arg);
4235 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
4237 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
4239 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
4242 return __f2fs_ioctl(filp, cmd, arg);
4246 * Return %true if the given read or write request should use direct I/O, or
4247 * %false if it should use buffered I/O.
4249 static bool f2fs_should_use_dio(struct inode *inode, struct kiocb *iocb,
4250 struct iov_iter *iter)
4254 if (!(iocb->ki_flags & IOCB_DIRECT))
4257 if (f2fs_force_buffered_io(inode, iov_iter_rw(iter)))
4261 * Direct I/O not aligned to the disk's logical_block_size will be
4262 * attempted, but will fail with -EINVAL.
4264 * f2fs additionally requires that direct I/O be aligned to the
4265 * filesystem block size, which is often a stricter requirement.
4266 * However, f2fs traditionally falls back to buffered I/O on requests
4267 * that are logical_block_size-aligned but not fs-block aligned.
4269 * The below logic implements this behavior.
4271 align = iocb->ki_pos | iov_iter_alignment(iter);
4272 if (!IS_ALIGNED(align, i_blocksize(inode)) &&
4273 IS_ALIGNED(align, bdev_logical_block_size(inode->i_sb->s_bdev)))
4279 static int f2fs_dio_read_end_io(struct kiocb *iocb, ssize_t size, int error,
4282 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp));
4284 dec_page_count(sbi, F2FS_DIO_READ);
4287 f2fs_update_iostat(sbi, NULL, APP_DIRECT_READ_IO, size);
4291 static const struct iomap_dio_ops f2fs_iomap_dio_read_ops = {
4292 .end_io = f2fs_dio_read_end_io,
4295 static ssize_t f2fs_dio_read_iter(struct kiocb *iocb, struct iov_iter *to)
4297 struct file *file = iocb->ki_filp;
4298 struct inode *inode = file_inode(file);
4299 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4300 struct f2fs_inode_info *fi = F2FS_I(inode);
4301 const loff_t pos = iocb->ki_pos;
4302 const size_t count = iov_iter_count(to);
4303 struct iomap_dio *dio;
4307 return 0; /* skip atime update */
4309 trace_f2fs_direct_IO_enter(inode, iocb, count, READ);
4311 if (iocb->ki_flags & IOCB_NOWAIT) {
4312 if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
4317 f2fs_down_read(&fi->i_gc_rwsem[READ]);
4321 * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of
4322 * the higher-level function iomap_dio_rw() in order to ensure that the
4323 * F2FS_DIO_READ counter will be decremented correctly in all cases.
4325 inc_page_count(sbi, F2FS_DIO_READ);
4326 dio = __iomap_dio_rw(iocb, to, &f2fs_iomap_ops,
4327 &f2fs_iomap_dio_read_ops, 0, NULL, 0);
4328 if (IS_ERR_OR_NULL(dio)) {
4329 ret = PTR_ERR_OR_ZERO(dio);
4330 if (ret != -EIOCBQUEUED)
4331 dec_page_count(sbi, F2FS_DIO_READ);
4333 ret = iomap_dio_complete(dio);
4336 f2fs_up_read(&fi->i_gc_rwsem[READ]);
4338 file_accessed(file);
4340 trace_f2fs_direct_IO_exit(inode, pos, count, READ, ret);
4344 static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
4346 struct inode *inode = file_inode(iocb->ki_filp);
4347 const loff_t pos = iocb->ki_pos;
4350 if (!f2fs_is_compress_backend_ready(inode))
4353 if (trace_f2fs_dataread_start_enabled()) {
4354 char *p = f2fs_kmalloc(F2FS_I_SB(inode), PATH_MAX, GFP_KERNEL);
4358 goto skip_read_trace;
4360 path = dentry_path_raw(file_dentry(iocb->ki_filp), p, PATH_MAX);
4363 goto skip_read_trace;
4366 trace_f2fs_dataread_start(inode, pos, iov_iter_count(to),
4367 current->pid, path, current->comm);
4371 if (f2fs_should_use_dio(inode, iocb, to)) {
4372 ret = f2fs_dio_read_iter(iocb, to);
4374 ret = filemap_read(iocb, to, 0);
4376 f2fs_update_iostat(F2FS_I_SB(inode), inode,
4377 APP_BUFFERED_READ_IO, ret);
4379 if (trace_f2fs_dataread_end_enabled())
4380 trace_f2fs_dataread_end(inode, pos, ret);
4384 static ssize_t f2fs_write_checks(struct kiocb *iocb, struct iov_iter *from)
4386 struct file *file = iocb->ki_filp;
4387 struct inode *inode = file_inode(file);
4391 if (IS_IMMUTABLE(inode))
4394 if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
4397 count = generic_write_checks(iocb, from);
4401 err = file_modified(file);
4408 * Preallocate blocks for a write request, if it is possible and helpful to do
4409 * so. Returns a positive number if blocks may have been preallocated, 0 if no
4410 * blocks were preallocated, or a negative errno value if something went
4411 * seriously wrong. Also sets FI_PREALLOCATED_ALL on the inode if *all* the
4412 * requested blocks (not just some of them) have been allocated.
4414 static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter,
4417 struct inode *inode = file_inode(iocb->ki_filp);
4418 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4419 const loff_t pos = iocb->ki_pos;
4420 const size_t count = iov_iter_count(iter);
4421 struct f2fs_map_blocks map = {};
4425 /* If it will be an out-of-place direct write, don't bother. */
4426 if (dio && f2fs_lfs_mode(sbi))
4429 * Don't preallocate holes aligned to DIO_SKIP_HOLES which turns into
4430 * buffered IO, if DIO meets any holes.
4432 if (dio && i_size_read(inode) &&
4433 (F2FS_BYTES_TO_BLK(pos) < F2FS_BLK_ALIGN(i_size_read(inode))))
4436 /* No-wait I/O can't allocate blocks. */
4437 if (iocb->ki_flags & IOCB_NOWAIT)
4440 /* If it will be a short write, don't bother. */
4441 if (fault_in_iov_iter_readable(iter, count))
4444 if (f2fs_has_inline_data(inode)) {
4445 /* If the data will fit inline, don't bother. */
4446 if (pos + count <= MAX_INLINE_DATA(inode))
4448 ret = f2fs_convert_inline_inode(inode);
4453 /* Do not preallocate blocks that will be written partially in 4KB. */
4454 map.m_lblk = F2FS_BLK_ALIGN(pos);
4455 map.m_len = F2FS_BYTES_TO_BLK(pos + count);
4456 if (map.m_len > map.m_lblk)
4457 map.m_len -= map.m_lblk;
4460 map.m_may_create = true;
4462 map.m_seg_type = f2fs_rw_hint_to_seg_type(inode->i_write_hint);
4463 flag = F2FS_GET_BLOCK_PRE_DIO;
4465 map.m_seg_type = NO_CHECK_TYPE;
4466 flag = F2FS_GET_BLOCK_PRE_AIO;
4469 ret = f2fs_map_blocks(inode, &map, 1, flag);
4470 /* -ENOSPC|-EDQUOT are fine to report the number of allocated blocks. */
4471 if (ret < 0 && !((ret == -ENOSPC || ret == -EDQUOT) && map.m_len > 0))
4474 set_inode_flag(inode, FI_PREALLOCATED_ALL);
4478 static ssize_t f2fs_buffered_write_iter(struct kiocb *iocb,
4479 struct iov_iter *from)
4481 struct file *file = iocb->ki_filp;
4482 struct inode *inode = file_inode(file);
4485 if (iocb->ki_flags & IOCB_NOWAIT)
4488 current->backing_dev_info = inode_to_bdi(inode);
4489 ret = generic_perform_write(iocb, from);
4490 current->backing_dev_info = NULL;
4493 iocb->ki_pos += ret;
4494 f2fs_update_iostat(F2FS_I_SB(inode), inode,
4495 APP_BUFFERED_IO, ret);
4500 static int f2fs_dio_write_end_io(struct kiocb *iocb, ssize_t size, int error,
4503 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(iocb->ki_filp));
4505 dec_page_count(sbi, F2FS_DIO_WRITE);
4508 f2fs_update_iostat(sbi, NULL, APP_DIRECT_IO, size);
4512 static const struct iomap_dio_ops f2fs_iomap_dio_write_ops = {
4513 .end_io = f2fs_dio_write_end_io,
4516 static ssize_t f2fs_dio_write_iter(struct kiocb *iocb, struct iov_iter *from,
4517 bool *may_need_sync)
4519 struct file *file = iocb->ki_filp;
4520 struct inode *inode = file_inode(file);
4521 struct f2fs_inode_info *fi = F2FS_I(inode);
4522 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
4523 const bool do_opu = f2fs_lfs_mode(sbi);
4524 const loff_t pos = iocb->ki_pos;
4525 const ssize_t count = iov_iter_count(from);
4526 unsigned int dio_flags;
4527 struct iomap_dio *dio;
4530 trace_f2fs_direct_IO_enter(inode, iocb, count, WRITE);
4532 if (iocb->ki_flags & IOCB_NOWAIT) {
4533 /* f2fs_convert_inline_inode() and block allocation can block */
4534 if (f2fs_has_inline_data(inode) ||
4535 !f2fs_overwrite_io(inode, pos, count)) {
4540 if (!f2fs_down_read_trylock(&fi->i_gc_rwsem[WRITE])) {
4544 if (do_opu && !f2fs_down_read_trylock(&fi->i_gc_rwsem[READ])) {
4545 f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
4550 ret = f2fs_convert_inline_inode(inode);
4554 f2fs_down_read(&fi->i_gc_rwsem[WRITE]);
4556 f2fs_down_read(&fi->i_gc_rwsem[READ]);
4560 * We have to use __iomap_dio_rw() and iomap_dio_complete() instead of
4561 * the higher-level function iomap_dio_rw() in order to ensure that the
4562 * F2FS_DIO_WRITE counter will be decremented correctly in all cases.
4564 inc_page_count(sbi, F2FS_DIO_WRITE);
4566 if (pos + count > inode->i_size)
4567 dio_flags |= IOMAP_DIO_FORCE_WAIT;
4568 dio = __iomap_dio_rw(iocb, from, &f2fs_iomap_ops,
4569 &f2fs_iomap_dio_write_ops, dio_flags, NULL, 0);
4570 if (IS_ERR_OR_NULL(dio)) {
4571 ret = PTR_ERR_OR_ZERO(dio);
4572 if (ret == -ENOTBLK)
4574 if (ret != -EIOCBQUEUED)
4575 dec_page_count(sbi, F2FS_DIO_WRITE);
4577 ret = iomap_dio_complete(dio);
4581 f2fs_up_read(&fi->i_gc_rwsem[READ]);
4582 f2fs_up_read(&fi->i_gc_rwsem[WRITE]);
4586 if (pos + ret > inode->i_size)
4587 f2fs_i_size_write(inode, pos + ret);
4589 set_inode_flag(inode, FI_UPDATE_WRITE);
4591 if (iov_iter_count(from)) {
4593 loff_t bufio_start_pos = iocb->ki_pos;
4596 * The direct write was partial, so we need to fall back to a
4597 * buffered write for the remainder.
4600 ret2 = f2fs_buffered_write_iter(iocb, from);
4601 if (iov_iter_count(from))
4602 f2fs_write_failed(inode, iocb->ki_pos);
4607 * Ensure that the pagecache pages are written to disk and
4608 * invalidated to preserve the expected O_DIRECT semantics.
4611 loff_t bufio_end_pos = bufio_start_pos + ret2 - 1;
4615 ret2 = filemap_write_and_wait_range(file->f_mapping,
4620 invalidate_mapping_pages(file->f_mapping,
4621 bufio_start_pos >> PAGE_SHIFT,
4622 bufio_end_pos >> PAGE_SHIFT);
4625 /* iomap_dio_rw() already handled the generic_write_sync(). */
4626 *may_need_sync = false;
4629 trace_f2fs_direct_IO_exit(inode, pos, count, WRITE, ret);
4633 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
4635 struct inode *inode = file_inode(iocb->ki_filp);
4636 const loff_t orig_pos = iocb->ki_pos;
4637 const size_t orig_count = iov_iter_count(from);
4640 bool may_need_sync = true;
4644 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
4649 if (!f2fs_is_compress_backend_ready(inode)) {
4654 if (iocb->ki_flags & IOCB_NOWAIT) {
4655 if (!inode_trylock(inode)) {
4663 ret = f2fs_write_checks(iocb, from);
4667 /* Determine whether we will do a direct write or a buffered write. */
4668 dio = f2fs_should_use_dio(inode, iocb, from);
4670 /* Possibly preallocate the blocks for the write. */
4671 target_size = iocb->ki_pos + iov_iter_count(from);
4672 preallocated = f2fs_preallocate_blocks(iocb, from, dio);
4673 if (preallocated < 0) {
4676 if (trace_f2fs_datawrite_start_enabled()) {
4677 char *p = f2fs_kmalloc(F2FS_I_SB(inode),
4678 PATH_MAX, GFP_KERNEL);
4682 goto skip_write_trace;
4683 path = dentry_path_raw(file_dentry(iocb->ki_filp),
4687 goto skip_write_trace;
4689 trace_f2fs_datawrite_start(inode, orig_pos, orig_count,
4690 current->pid, path, current->comm);
4694 /* Do the actual write. */
4696 f2fs_dio_write_iter(iocb, from, &may_need_sync) :
4697 f2fs_buffered_write_iter(iocb, from);
4699 if (trace_f2fs_datawrite_end_enabled())
4700 trace_f2fs_datawrite_end(inode, orig_pos, ret);
4703 /* Don't leave any preallocated blocks around past i_size. */
4704 if (preallocated && i_size_read(inode) < target_size) {
4705 f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
4706 filemap_invalidate_lock(inode->i_mapping);
4707 if (!f2fs_truncate(inode))
4708 file_dont_truncate(inode);
4709 filemap_invalidate_unlock(inode->i_mapping);
4710 f2fs_up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
4712 file_dont_truncate(inode);
4715 clear_inode_flag(inode, FI_PREALLOCATED_ALL);
4717 inode_unlock(inode);
4719 trace_f2fs_file_write_iter(inode, orig_pos, orig_count, ret);
4720 if (ret > 0 && may_need_sync)
4721 ret = generic_write_sync(iocb, ret);
4725 static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len,
4728 struct address_space *mapping;
4729 struct backing_dev_info *bdi;
4730 struct inode *inode = file_inode(filp);
4733 if (advice == POSIX_FADV_SEQUENTIAL) {
4734 if (S_ISFIFO(inode->i_mode))
4737 mapping = filp->f_mapping;
4738 if (!mapping || len < 0)
4741 bdi = inode_to_bdi(mapping->host);
4742 filp->f_ra.ra_pages = bdi->ra_pages *
4743 F2FS_I_SB(inode)->seq_file_ra_mul;
4744 spin_lock(&filp->f_lock);
4745 filp->f_mode &= ~FMODE_RANDOM;
4746 spin_unlock(&filp->f_lock);
4750 err = generic_fadvise(filp, offset, len, advice);
4751 if (!err && advice == POSIX_FADV_DONTNEED &&
4752 test_opt(F2FS_I_SB(inode), COMPRESS_CACHE) &&
4753 f2fs_compressed_file(inode))
4754 f2fs_invalidate_compress_pages(F2FS_I_SB(inode), inode->i_ino);
4759 #ifdef CONFIG_COMPAT
4760 struct compat_f2fs_gc_range {
4765 #define F2FS_IOC32_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11,\
4766 struct compat_f2fs_gc_range)
4768 static int f2fs_compat_ioc_gc_range(struct file *file, unsigned long arg)
4770 struct compat_f2fs_gc_range __user *urange;
4771 struct f2fs_gc_range range;
4774 urange = compat_ptr(arg);
4775 err = get_user(range.sync, &urange->sync);
4776 err |= get_user(range.start, &urange->start);
4777 err |= get_user(range.len, &urange->len);
4781 return __f2fs_ioc_gc_range(file, &range);
4784 struct compat_f2fs_move_range {
4790 #define F2FS_IOC32_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
4791 struct compat_f2fs_move_range)
4793 static int f2fs_compat_ioc_move_range(struct file *file, unsigned long arg)
4795 struct compat_f2fs_move_range __user *urange;
4796 struct f2fs_move_range range;
4799 urange = compat_ptr(arg);
4800 err = get_user(range.dst_fd, &urange->dst_fd);
4801 err |= get_user(range.pos_in, &urange->pos_in);
4802 err |= get_user(range.pos_out, &urange->pos_out);
4803 err |= get_user(range.len, &urange->len);
4807 return __f2fs_ioc_move_range(file, &range);
4810 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
4812 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
4814 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(file))))
4818 case FS_IOC32_GETVERSION:
4819 cmd = FS_IOC_GETVERSION;
4821 case F2FS_IOC32_GARBAGE_COLLECT_RANGE:
4822 return f2fs_compat_ioc_gc_range(file, arg);
4823 case F2FS_IOC32_MOVE_RANGE:
4824 return f2fs_compat_ioc_move_range(file, arg);
4825 case F2FS_IOC_START_ATOMIC_WRITE:
4826 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
4827 case F2FS_IOC_START_VOLATILE_WRITE:
4828 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
4829 case F2FS_IOC_ABORT_ATOMIC_WRITE:
4830 case F2FS_IOC_SHUTDOWN:
4832 case FS_IOC_SET_ENCRYPTION_POLICY:
4833 case FS_IOC_GET_ENCRYPTION_PWSALT:
4834 case FS_IOC_GET_ENCRYPTION_POLICY:
4835 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
4836 case FS_IOC_ADD_ENCRYPTION_KEY:
4837 case FS_IOC_REMOVE_ENCRYPTION_KEY:
4838 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
4839 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
4840 case FS_IOC_GET_ENCRYPTION_NONCE:
4841 case F2FS_IOC_GARBAGE_COLLECT:
4842 case F2FS_IOC_WRITE_CHECKPOINT:
4843 case F2FS_IOC_DEFRAGMENT:
4844 case F2FS_IOC_FLUSH_DEVICE:
4845 case F2FS_IOC_GET_FEATURES:
4846 case F2FS_IOC_GET_PIN_FILE:
4847 case F2FS_IOC_SET_PIN_FILE:
4848 case F2FS_IOC_PRECACHE_EXTENTS:
4849 case F2FS_IOC_RESIZE_FS:
4850 case FS_IOC_ENABLE_VERITY:
4851 case FS_IOC_MEASURE_VERITY:
4852 case FS_IOC_READ_VERITY_METADATA:
4853 case FS_IOC_GETFSLABEL:
4854 case FS_IOC_SETFSLABEL:
4855 case F2FS_IOC_GET_COMPRESS_BLOCKS:
4856 case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
4857 case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
4858 case F2FS_IOC_SEC_TRIM_FILE:
4859 case F2FS_IOC_GET_COMPRESS_OPTION:
4860 case F2FS_IOC_SET_COMPRESS_OPTION:
4861 case F2FS_IOC_DECOMPRESS_FILE:
4862 case F2FS_IOC_COMPRESS_FILE:
4865 return -ENOIOCTLCMD;
4867 return __f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
4871 const struct file_operations f2fs_file_operations = {
4872 .llseek = f2fs_llseek,
4873 .read_iter = f2fs_file_read_iter,
4874 .write_iter = f2fs_file_write_iter,
4875 .open = f2fs_file_open,
4876 .release = f2fs_release_file,
4877 .mmap = f2fs_file_mmap,
4878 .flush = f2fs_file_flush,
4879 .fsync = f2fs_sync_file,
4880 .fallocate = f2fs_fallocate,
4881 .unlocked_ioctl = f2fs_ioctl,
4882 #ifdef CONFIG_COMPAT
4883 .compat_ioctl = f2fs_compat_ioctl,
4885 .splice_read = generic_file_splice_read,
4886 .splice_write = iter_file_splice_write,
4887 .fadvise = f2fs_file_fadvise,