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>
32 #include <trace/events/f2fs.h>
34 static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
36 struct inode *inode = file_inode(vmf->vma->vm_file);
39 down_read(&F2FS_I(inode)->i_mmap_sem);
40 ret = filemap_fault(vmf);
41 up_read(&F2FS_I(inode)->i_mmap_sem);
43 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
48 static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
50 struct page *page = vmf->page;
51 struct inode *inode = file_inode(vmf->vma->vm_file);
52 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
53 struct dnode_of_data dn = { .node_changed = false };
56 if (unlikely(f2fs_cp_error(sbi))) {
61 if (!f2fs_is_checkpoint_ready(sbi)) {
66 sb_start_pagefault(inode->i_sb);
68 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
70 file_update_time(vmf->vma->vm_file);
71 down_read(&F2FS_I(inode)->i_mmap_sem);
73 if (unlikely(page->mapping != inode->i_mapping ||
74 page_offset(page) > i_size_read(inode) ||
75 !PageUptodate(page))) {
81 /* block allocation */
82 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
83 set_new_dnode(&dn, inode, NULL, NULL, 0);
84 err = f2fs_get_block(&dn, page->index);
86 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
93 f2fs_wait_on_page_writeback(page, DATA, false, true);
95 /* wait for GCed page writeback via META_MAPPING */
96 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
99 * check to see if the page is mapped already (no holes)
101 if (PageMappedToDisk(page))
104 /* page is wholly or partially inside EOF */
105 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
106 i_size_read(inode)) {
109 offset = i_size_read(inode) & ~PAGE_MASK;
110 zero_user_segment(page, offset, PAGE_SIZE);
112 set_page_dirty(page);
113 if (!PageUptodate(page))
114 SetPageUptodate(page);
116 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
117 f2fs_update_time(sbi, REQ_TIME);
119 trace_f2fs_vm_page_mkwrite(page, DATA);
121 up_read(&F2FS_I(inode)->i_mmap_sem);
123 f2fs_balance_fs(sbi, dn.node_changed);
125 sb_end_pagefault(inode->i_sb);
127 return block_page_mkwrite_return(err);
130 static const struct vm_operations_struct f2fs_file_vm_ops = {
131 .fault = f2fs_filemap_fault,
132 .map_pages = filemap_map_pages,
133 .page_mkwrite = f2fs_vm_page_mkwrite,
136 static int get_parent_ino(struct inode *inode, nid_t *pino)
138 struct dentry *dentry;
140 inode = igrab(inode);
141 dentry = d_find_any_alias(inode);
146 *pino = parent_ino(dentry);
151 static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
153 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
154 enum cp_reason_type cp_reason = CP_NO_NEEDED;
156 if (!S_ISREG(inode->i_mode))
157 cp_reason = CP_NON_REGULAR;
158 else if (inode->i_nlink != 1)
159 cp_reason = CP_HARDLINK;
160 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
161 cp_reason = CP_SB_NEED_CP;
162 else if (file_wrong_pino(inode))
163 cp_reason = CP_WRONG_PINO;
164 else if (!f2fs_space_for_roll_forward(sbi))
165 cp_reason = CP_NO_SPC_ROLL;
166 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
167 cp_reason = CP_NODE_NEED_CP;
168 else if (test_opt(sbi, FASTBOOT))
169 cp_reason = CP_FASTBOOT_MODE;
170 else if (F2FS_OPTION(sbi).active_logs == 2)
171 cp_reason = CP_SPEC_LOG_NUM;
172 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
173 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
174 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
176 cp_reason = CP_RECOVER_DIR;
181 static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
183 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
185 /* But we need to avoid that there are some inode updates */
186 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
192 static void try_to_fix_pino(struct inode *inode)
194 struct f2fs_inode_info *fi = F2FS_I(inode);
197 down_write(&fi->i_sem);
198 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
199 get_parent_ino(inode, &pino)) {
200 f2fs_i_pino_write(inode, pino);
201 file_got_pino(inode);
203 up_write(&fi->i_sem);
206 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
207 int datasync, bool atomic)
209 struct inode *inode = file->f_mapping->host;
210 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
211 nid_t ino = inode->i_ino;
213 enum cp_reason_type cp_reason = 0;
214 struct writeback_control wbc = {
215 .sync_mode = WB_SYNC_ALL,
216 .nr_to_write = LONG_MAX,
219 unsigned int seq_id = 0;
221 if (unlikely(f2fs_readonly(inode->i_sb) ||
222 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
225 trace_f2fs_sync_file_enter(inode);
227 if (S_ISDIR(inode->i_mode))
230 /* if fdatasync is triggered, let's do in-place-update */
231 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
232 set_inode_flag(inode, FI_NEED_IPU);
233 ret = file_write_and_wait_range(file, start, end);
234 clear_inode_flag(inode, FI_NEED_IPU);
237 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
241 /* if the inode is dirty, let's recover all the time */
242 if (!f2fs_skip_inode_update(inode, datasync)) {
243 f2fs_write_inode(inode, NULL);
248 * if there is no written data, don't waste time to write recovery info.
250 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
251 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
253 /* it may call write_inode just prior to fsync */
254 if (need_inode_page_update(sbi, ino))
257 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
258 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
264 * Both of fdatasync() and fsync() are able to be recovered from
267 down_read(&F2FS_I(inode)->i_sem);
268 cp_reason = need_do_checkpoint(inode);
269 up_read(&F2FS_I(inode)->i_sem);
272 /* all the dirty node pages should be flushed for POR */
273 ret = f2fs_sync_fs(inode->i_sb, 1);
276 * We've secured consistency through sync_fs. Following pino
277 * will be used only for fsynced inodes after checkpoint.
279 try_to_fix_pino(inode);
280 clear_inode_flag(inode, FI_APPEND_WRITE);
281 clear_inode_flag(inode, FI_UPDATE_WRITE);
285 atomic_inc(&sbi->wb_sync_req[NODE]);
286 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
287 atomic_dec(&sbi->wb_sync_req[NODE]);
291 /* if cp_error was enabled, we should avoid infinite loop */
292 if (unlikely(f2fs_cp_error(sbi))) {
297 if (f2fs_need_inode_block_update(sbi, ino)) {
298 f2fs_mark_inode_dirty_sync(inode, true);
299 f2fs_write_inode(inode, NULL);
304 * If it's atomic_write, it's just fine to keep write ordering. So
305 * here we don't need to wait for node write completion, since we use
306 * node chain which serializes node blocks. If one of node writes are
307 * reordered, we can see simply broken chain, resulting in stopping
308 * roll-forward recovery. It means we'll recover all or none node blocks
312 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
317 /* once recovery info is written, don't need to tack this */
318 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
319 clear_inode_flag(inode, FI_APPEND_WRITE);
321 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
322 ret = f2fs_issue_flush(sbi, inode->i_ino);
324 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
325 clear_inode_flag(inode, FI_UPDATE_WRITE);
326 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
328 f2fs_update_time(sbi, REQ_TIME);
330 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
331 f2fs_trace_ios(NULL, 1);
335 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
337 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
339 return f2fs_do_sync_file(file, start, end, datasync, false);
342 static pgoff_t __get_first_dirty_index(struct address_space *mapping,
343 pgoff_t pgofs, int whence)
348 if (whence != SEEK_DATA)
351 /* find first dirty page index */
352 nr_pages = find_get_pages_tag(mapping, &pgofs, PAGECACHE_TAG_DIRTY,
361 static bool __found_offset(struct f2fs_sb_info *sbi, block_t blkaddr,
362 pgoff_t dirty, pgoff_t pgofs, int whence)
366 if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
367 __is_valid_data_blkaddr(blkaddr))
371 if (blkaddr == NULL_ADDR)
378 static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
380 struct inode *inode = file->f_mapping->host;
381 loff_t maxbytes = inode->i_sb->s_maxbytes;
382 struct dnode_of_data dn;
383 pgoff_t pgofs, end_offset, dirty;
384 loff_t data_ofs = offset;
390 isize = i_size_read(inode);
394 /* handle inline data case */
395 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
396 if (whence == SEEK_HOLE)
401 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
403 dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
405 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
406 set_new_dnode(&dn, inode, NULL, NULL, 0);
407 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
408 if (err && err != -ENOENT) {
410 } else if (err == -ENOENT) {
411 /* direct node does not exists */
412 if (whence == SEEK_DATA) {
413 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
420 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
422 /* find data/hole in dnode block */
423 for (; dn.ofs_in_node < end_offset;
424 dn.ofs_in_node++, pgofs++,
425 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
428 blkaddr = datablock_addr(dn.inode,
429 dn.node_page, dn.ofs_in_node);
431 if (__is_valid_data_blkaddr(blkaddr) &&
432 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
433 blkaddr, DATA_GENERIC_ENHANCE)) {
438 if (__found_offset(F2FS_I_SB(inode), blkaddr, dirty,
447 if (whence == SEEK_DATA)
450 if (whence == SEEK_HOLE && data_ofs > isize)
453 return vfs_setpos(file, data_ofs, maxbytes);
459 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
461 struct inode *inode = file->f_mapping->host;
462 loff_t maxbytes = inode->i_sb->s_maxbytes;
468 return generic_file_llseek_size(file, offset, whence,
469 maxbytes, i_size_read(inode));
474 return f2fs_seek_block(file, offset, whence);
480 static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
482 struct inode *inode = file_inode(file);
485 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
488 /* we don't need to use inline_data strictly */
489 err = f2fs_convert_inline_inode(inode);
494 vma->vm_ops = &f2fs_file_vm_ops;
498 static int f2fs_file_open(struct inode *inode, struct file *filp)
500 int err = fscrypt_file_open(inode, filp);
505 filp->f_mode |= FMODE_NOWAIT;
507 return dquot_file_open(inode, filp);
510 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
512 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
513 struct f2fs_node *raw_node;
514 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
518 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
519 base = get_extra_isize(dn->inode);
521 raw_node = F2FS_NODE(dn->node_page);
522 addr = blkaddr_in_node(raw_node) + base + ofs;
524 for (; count > 0; count--, addr++, dn->ofs_in_node++) {
525 block_t blkaddr = le32_to_cpu(*addr);
527 if (blkaddr == NULL_ADDR)
530 dn->data_blkaddr = NULL_ADDR;
531 f2fs_set_data_blkaddr(dn);
533 if (__is_valid_data_blkaddr(blkaddr) &&
534 !f2fs_is_valid_blkaddr(sbi, blkaddr,
535 DATA_GENERIC_ENHANCE))
538 f2fs_invalidate_blocks(sbi, blkaddr);
539 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
540 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
547 * once we invalidate valid blkaddr in range [ofs, ofs + count],
548 * we will invalidate all blkaddr in the whole range.
550 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
552 f2fs_update_extent_cache_range(dn, fofs, 0, len);
553 dec_valid_block_count(sbi, dn->inode, nr_free);
555 dn->ofs_in_node = ofs;
557 f2fs_update_time(sbi, REQ_TIME);
558 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
559 dn->ofs_in_node, nr_free);
562 void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
564 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
567 static int truncate_partial_data_page(struct inode *inode, u64 from,
570 loff_t offset = from & (PAGE_SIZE - 1);
571 pgoff_t index = from >> PAGE_SHIFT;
572 struct address_space *mapping = inode->i_mapping;
575 if (!offset && !cache_only)
579 page = find_lock_page(mapping, index);
580 if (page && PageUptodate(page))
582 f2fs_put_page(page, 1);
586 page = f2fs_get_lock_data_page(inode, index, true);
588 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
590 f2fs_wait_on_page_writeback(page, DATA, true, true);
591 zero_user(page, offset, PAGE_SIZE - offset);
593 /* An encrypted inode should have a key and truncate the last page. */
594 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
596 set_page_dirty(page);
597 f2fs_put_page(page, 1);
601 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
603 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
604 struct dnode_of_data dn;
606 int count = 0, err = 0;
608 bool truncate_page = false;
610 trace_f2fs_truncate_blocks_enter(inode, from);
612 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
614 if (free_from >= sbi->max_file_blocks)
620 ipage = f2fs_get_node_page(sbi, inode->i_ino);
622 err = PTR_ERR(ipage);
626 if (f2fs_has_inline_data(inode)) {
627 f2fs_truncate_inline_inode(inode, ipage, from);
628 f2fs_put_page(ipage, 1);
629 truncate_page = true;
633 set_new_dnode(&dn, inode, ipage, NULL, 0);
634 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
641 count = ADDRS_PER_PAGE(dn.node_page, inode);
643 count -= dn.ofs_in_node;
644 f2fs_bug_on(sbi, count < 0);
646 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
647 f2fs_truncate_data_blocks_range(&dn, count);
653 err = f2fs_truncate_inode_blocks(inode, free_from);
658 /* lastly zero out the first data page */
660 err = truncate_partial_data_page(inode, from, truncate_page);
662 trace_f2fs_truncate_blocks_exit(inode, err);
666 int f2fs_truncate(struct inode *inode)
670 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
673 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
674 S_ISLNK(inode->i_mode)))
677 trace_f2fs_truncate(inode);
679 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
680 f2fs_show_injection_info(FAULT_TRUNCATE);
684 /* we should check inline_data size */
685 if (!f2fs_may_inline_data(inode)) {
686 err = f2fs_convert_inline_inode(inode);
691 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
695 inode->i_mtime = inode->i_ctime = current_time(inode);
696 f2fs_mark_inode_dirty_sync(inode, false);
700 int f2fs_getattr(const struct path *path, struct kstat *stat,
701 u32 request_mask, unsigned int query_flags)
703 struct inode *inode = d_inode(path->dentry);
704 struct f2fs_inode_info *fi = F2FS_I(inode);
705 struct f2fs_inode *ri;
708 if (f2fs_has_extra_attr(inode) &&
709 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
710 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
711 stat->result_mask |= STATX_BTIME;
712 stat->btime.tv_sec = fi->i_crtime.tv_sec;
713 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
717 if (flags & F2FS_APPEND_FL)
718 stat->attributes |= STATX_ATTR_APPEND;
719 if (IS_ENCRYPTED(inode))
720 stat->attributes |= STATX_ATTR_ENCRYPTED;
721 if (flags & F2FS_IMMUTABLE_FL)
722 stat->attributes |= STATX_ATTR_IMMUTABLE;
723 if (flags & F2FS_NODUMP_FL)
724 stat->attributes |= STATX_ATTR_NODUMP;
726 stat->attributes_mask |= (STATX_ATTR_APPEND |
727 STATX_ATTR_ENCRYPTED |
728 STATX_ATTR_IMMUTABLE |
731 generic_fillattr(inode, stat);
733 /* we need to show initial sectors used for inline_data/dentries */
734 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
735 f2fs_has_inline_dentry(inode))
736 stat->blocks += (stat->size + 511) >> 9;
741 #ifdef CONFIG_F2FS_FS_POSIX_ACL
742 static void __setattr_copy(struct inode *inode, const struct iattr *attr)
744 unsigned int ia_valid = attr->ia_valid;
746 if (ia_valid & ATTR_UID)
747 inode->i_uid = attr->ia_uid;
748 if (ia_valid & ATTR_GID)
749 inode->i_gid = attr->ia_gid;
750 if (ia_valid & ATTR_ATIME)
751 inode->i_atime = timespec64_trunc(attr->ia_atime,
752 inode->i_sb->s_time_gran);
753 if (ia_valid & ATTR_MTIME)
754 inode->i_mtime = timespec64_trunc(attr->ia_mtime,
755 inode->i_sb->s_time_gran);
756 if (ia_valid & ATTR_CTIME)
757 inode->i_ctime = timespec64_trunc(attr->ia_ctime,
758 inode->i_sb->s_time_gran);
759 if (ia_valid & ATTR_MODE) {
760 umode_t mode = attr->ia_mode;
762 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
764 set_acl_inode(inode, mode);
768 #define __setattr_copy setattr_copy
771 int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
773 struct inode *inode = d_inode(dentry);
776 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
779 err = setattr_prepare(dentry, attr);
783 err = fscrypt_prepare_setattr(dentry, attr);
787 if (is_quota_modification(inode, attr)) {
788 err = dquot_initialize(inode);
792 if ((attr->ia_valid & ATTR_UID &&
793 !uid_eq(attr->ia_uid, inode->i_uid)) ||
794 (attr->ia_valid & ATTR_GID &&
795 !gid_eq(attr->ia_gid, inode->i_gid))) {
796 f2fs_lock_op(F2FS_I_SB(inode));
797 err = dquot_transfer(inode, attr);
799 set_sbi_flag(F2FS_I_SB(inode),
800 SBI_QUOTA_NEED_REPAIR);
801 f2fs_unlock_op(F2FS_I_SB(inode));
805 * update uid/gid under lock_op(), so that dquot and inode can
806 * be updated atomically.
808 if (attr->ia_valid & ATTR_UID)
809 inode->i_uid = attr->ia_uid;
810 if (attr->ia_valid & ATTR_GID)
811 inode->i_gid = attr->ia_gid;
812 f2fs_mark_inode_dirty_sync(inode, true);
813 f2fs_unlock_op(F2FS_I_SB(inode));
816 if (attr->ia_valid & ATTR_SIZE) {
817 loff_t old_size = i_size_read(inode);
819 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
821 * should convert inline inode before i_size_write to
822 * keep smaller than inline_data size with inline flag.
824 err = f2fs_convert_inline_inode(inode);
829 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
830 down_write(&F2FS_I(inode)->i_mmap_sem);
832 truncate_setsize(inode, attr->ia_size);
834 if (attr->ia_size <= old_size)
835 err = f2fs_truncate(inode);
837 * do not trim all blocks after i_size if target size is
838 * larger than i_size.
840 up_write(&F2FS_I(inode)->i_mmap_sem);
841 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
845 down_write(&F2FS_I(inode)->i_sem);
846 inode->i_mtime = inode->i_ctime = current_time(inode);
847 F2FS_I(inode)->last_disk_size = i_size_read(inode);
848 up_write(&F2FS_I(inode)->i_sem);
851 __setattr_copy(inode, attr);
853 if (attr->ia_valid & ATTR_MODE) {
854 err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
855 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
856 inode->i_mode = F2FS_I(inode)->i_acl_mode;
857 clear_inode_flag(inode, FI_ACL_MODE);
861 /* file size may changed here */
862 f2fs_mark_inode_dirty_sync(inode, true);
864 /* inode change will produce dirty node pages flushed by checkpoint */
865 f2fs_balance_fs(F2FS_I_SB(inode), true);
870 const struct inode_operations f2fs_file_inode_operations = {
871 .getattr = f2fs_getattr,
872 .setattr = f2fs_setattr,
873 .get_acl = f2fs_get_acl,
874 .set_acl = f2fs_set_acl,
875 #ifdef CONFIG_F2FS_FS_XATTR
876 .listxattr = f2fs_listxattr,
878 .fiemap = f2fs_fiemap,
881 static int fill_zero(struct inode *inode, pgoff_t index,
882 loff_t start, loff_t len)
884 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
890 f2fs_balance_fs(sbi, true);
893 page = f2fs_get_new_data_page(inode, NULL, index, false);
897 return PTR_ERR(page);
899 f2fs_wait_on_page_writeback(page, DATA, true, true);
900 zero_user(page, start, len);
901 set_page_dirty(page);
902 f2fs_put_page(page, 1);
906 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
910 while (pg_start < pg_end) {
911 struct dnode_of_data dn;
912 pgoff_t end_offset, count;
914 set_new_dnode(&dn, inode, NULL, NULL, 0);
915 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
917 if (err == -ENOENT) {
918 pg_start = f2fs_get_next_page_offset(&dn,
925 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
926 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
928 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
930 f2fs_truncate_data_blocks_range(&dn, count);
938 static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
940 pgoff_t pg_start, pg_end;
941 loff_t off_start, off_end;
944 ret = f2fs_convert_inline_inode(inode);
948 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
949 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
951 off_start = offset & (PAGE_SIZE - 1);
952 off_end = (offset + len) & (PAGE_SIZE - 1);
954 if (pg_start == pg_end) {
955 ret = fill_zero(inode, pg_start, off_start,
956 off_end - off_start);
961 ret = fill_zero(inode, pg_start++, off_start,
962 PAGE_SIZE - off_start);
967 ret = fill_zero(inode, pg_end, 0, off_end);
972 if (pg_start < pg_end) {
973 struct address_space *mapping = inode->i_mapping;
974 loff_t blk_start, blk_end;
975 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
977 f2fs_balance_fs(sbi, true);
979 blk_start = (loff_t)pg_start << PAGE_SHIFT;
980 blk_end = (loff_t)pg_end << PAGE_SHIFT;
982 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
983 down_write(&F2FS_I(inode)->i_mmap_sem);
985 truncate_inode_pages_range(mapping, blk_start,
989 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
992 up_write(&F2FS_I(inode)->i_mmap_sem);
993 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1000 static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1001 int *do_replace, pgoff_t off, pgoff_t len)
1003 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1004 struct dnode_of_data dn;
1008 set_new_dnode(&dn, inode, NULL, NULL, 0);
1009 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
1010 if (ret && ret != -ENOENT) {
1012 } else if (ret == -ENOENT) {
1013 if (dn.max_level == 0)
1015 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) - dn.ofs_in_node,
1022 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1023 dn.ofs_in_node, len);
1024 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
1025 *blkaddr = datablock_addr(dn.inode,
1026 dn.node_page, dn.ofs_in_node);
1028 if (__is_valid_data_blkaddr(*blkaddr) &&
1029 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1030 DATA_GENERIC_ENHANCE)) {
1031 f2fs_put_dnode(&dn);
1032 return -EFSCORRUPTED;
1035 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
1037 if (test_opt(sbi, LFS)) {
1038 f2fs_put_dnode(&dn);
1042 /* do not invalidate this block address */
1043 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
1047 f2fs_put_dnode(&dn);
1056 static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1057 int *do_replace, pgoff_t off, int len)
1059 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1060 struct dnode_of_data dn;
1063 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1064 if (*do_replace == 0)
1067 set_new_dnode(&dn, inode, NULL, NULL, 0);
1068 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
1070 dec_valid_block_count(sbi, inode, 1);
1071 f2fs_invalidate_blocks(sbi, *blkaddr);
1073 f2fs_update_data_blkaddr(&dn, *blkaddr);
1075 f2fs_put_dnode(&dn);
1080 static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1081 block_t *blkaddr, int *do_replace,
1082 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1084 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1089 if (blkaddr[i] == NULL_ADDR && !full) {
1094 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1095 struct dnode_of_data dn;
1096 struct node_info ni;
1100 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
1101 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
1105 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
1107 f2fs_put_dnode(&dn);
1111 ilen = min((pgoff_t)
1112 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1113 dn.ofs_in_node, len - i);
1115 dn.data_blkaddr = datablock_addr(dn.inode,
1116 dn.node_page, dn.ofs_in_node);
1117 f2fs_truncate_data_blocks_range(&dn, 1);
1119 if (do_replace[i]) {
1120 f2fs_i_blocks_write(src_inode,
1122 f2fs_i_blocks_write(dst_inode,
1124 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1125 blkaddr[i], ni.version, true, false);
1131 new_size = (dst + i) << PAGE_SHIFT;
1132 if (dst_inode->i_size < new_size)
1133 f2fs_i_size_write(dst_inode, new_size);
1134 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
1136 f2fs_put_dnode(&dn);
1138 struct page *psrc, *pdst;
1140 psrc = f2fs_get_lock_data_page(src_inode,
1143 return PTR_ERR(psrc);
1144 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
1147 f2fs_put_page(psrc, 1);
1148 return PTR_ERR(pdst);
1150 f2fs_copy_page(psrc, pdst);
1151 set_page_dirty(pdst);
1152 f2fs_put_page(pdst, 1);
1153 f2fs_put_page(psrc, 1);
1155 ret = f2fs_truncate_hole(src_inode,
1156 src + i, src + i + 1);
1165 static int __exchange_data_block(struct inode *src_inode,
1166 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
1167 pgoff_t len, bool full)
1169 block_t *src_blkaddr;
1175 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
1177 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1178 array_size(olen, sizeof(block_t)),
1183 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1184 array_size(olen, sizeof(int)),
1187 kvfree(src_blkaddr);
1191 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1192 do_replace, src, olen);
1196 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1197 do_replace, src, dst, olen, full);
1205 kvfree(src_blkaddr);
1211 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
1212 kvfree(src_blkaddr);
1217 static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
1219 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1220 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1221 pgoff_t start = offset >> PAGE_SHIFT;
1222 pgoff_t end = (offset + len) >> PAGE_SHIFT;
1225 f2fs_balance_fs(sbi, true);
1227 /* avoid gc operation during block exchange */
1228 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1229 down_write(&F2FS_I(inode)->i_mmap_sem);
1232 f2fs_drop_extent_tree(inode);
1233 truncate_pagecache(inode, offset);
1234 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1235 f2fs_unlock_op(sbi);
1237 up_write(&F2FS_I(inode)->i_mmap_sem);
1238 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1242 static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1247 if (offset + len >= i_size_read(inode))
1250 /* collapse range should be aligned to block size of f2fs. */
1251 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1254 ret = f2fs_convert_inline_inode(inode);
1258 /* write out all dirty pages from offset */
1259 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1263 ret = f2fs_do_collapse(inode, offset, len);
1267 /* write out all moved pages, if possible */
1268 down_write(&F2FS_I(inode)->i_mmap_sem);
1269 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1270 truncate_pagecache(inode, offset);
1272 new_size = i_size_read(inode) - len;
1273 truncate_pagecache(inode, new_size);
1275 ret = f2fs_truncate_blocks(inode, new_size, true);
1276 up_write(&F2FS_I(inode)->i_mmap_sem);
1278 f2fs_i_size_write(inode, new_size);
1282 static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1285 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1286 pgoff_t index = start;
1287 unsigned int ofs_in_node = dn->ofs_in_node;
1291 for (; index < end; index++, dn->ofs_in_node++) {
1292 if (datablock_addr(dn->inode, dn->node_page,
1293 dn->ofs_in_node) == NULL_ADDR)
1297 dn->ofs_in_node = ofs_in_node;
1298 ret = f2fs_reserve_new_blocks(dn, count);
1302 dn->ofs_in_node = ofs_in_node;
1303 for (index = start; index < end; index++, dn->ofs_in_node++) {
1304 dn->data_blkaddr = datablock_addr(dn->inode,
1305 dn->node_page, dn->ofs_in_node);
1307 * f2fs_reserve_new_blocks will not guarantee entire block
1310 if (dn->data_blkaddr == NULL_ADDR) {
1314 if (dn->data_blkaddr != NEW_ADDR) {
1315 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
1316 dn->data_blkaddr = NEW_ADDR;
1317 f2fs_set_data_blkaddr(dn);
1321 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1326 static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1329 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1330 struct address_space *mapping = inode->i_mapping;
1331 pgoff_t index, pg_start, pg_end;
1332 loff_t new_size = i_size_read(inode);
1333 loff_t off_start, off_end;
1336 ret = inode_newsize_ok(inode, (len + offset));
1340 ret = f2fs_convert_inline_inode(inode);
1344 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1348 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1349 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1351 off_start = offset & (PAGE_SIZE - 1);
1352 off_end = (offset + len) & (PAGE_SIZE - 1);
1354 if (pg_start == pg_end) {
1355 ret = fill_zero(inode, pg_start, off_start,
1356 off_end - off_start);
1360 new_size = max_t(loff_t, new_size, offset + len);
1363 ret = fill_zero(inode, pg_start++, off_start,
1364 PAGE_SIZE - off_start);
1368 new_size = max_t(loff_t, new_size,
1369 (loff_t)pg_start << PAGE_SHIFT);
1372 for (index = pg_start; index < pg_end;) {
1373 struct dnode_of_data dn;
1374 unsigned int end_offset;
1377 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1378 down_write(&F2FS_I(inode)->i_mmap_sem);
1380 truncate_pagecache_range(inode,
1381 (loff_t)index << PAGE_SHIFT,
1382 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1386 set_new_dnode(&dn, inode, NULL, NULL, 0);
1387 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
1389 f2fs_unlock_op(sbi);
1390 up_write(&F2FS_I(inode)->i_mmap_sem);
1391 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1395 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1396 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1398 ret = f2fs_do_zero_range(&dn, index, end);
1399 f2fs_put_dnode(&dn);
1401 f2fs_unlock_op(sbi);
1402 up_write(&F2FS_I(inode)->i_mmap_sem);
1403 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1405 f2fs_balance_fs(sbi, dn.node_changed);
1411 new_size = max_t(loff_t, new_size,
1412 (loff_t)index << PAGE_SHIFT);
1416 ret = fill_zero(inode, pg_end, 0, off_end);
1420 new_size = max_t(loff_t, new_size, offset + len);
1425 if (new_size > i_size_read(inode)) {
1426 if (mode & FALLOC_FL_KEEP_SIZE)
1427 file_set_keep_isize(inode);
1429 f2fs_i_size_write(inode, new_size);
1434 static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1436 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1437 pgoff_t nr, pg_start, pg_end, delta, idx;
1441 new_size = i_size_read(inode) + len;
1442 ret = inode_newsize_ok(inode, new_size);
1446 if (offset >= i_size_read(inode))
1449 /* insert range should be aligned to block size of f2fs. */
1450 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1453 ret = f2fs_convert_inline_inode(inode);
1457 f2fs_balance_fs(sbi, true);
1459 down_write(&F2FS_I(inode)->i_mmap_sem);
1460 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
1461 up_write(&F2FS_I(inode)->i_mmap_sem);
1465 /* write out all dirty pages from offset */
1466 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1470 pg_start = offset >> PAGE_SHIFT;
1471 pg_end = (offset + len) >> PAGE_SHIFT;
1472 delta = pg_end - pg_start;
1473 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1475 /* avoid gc operation during block exchange */
1476 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1477 down_write(&F2FS_I(inode)->i_mmap_sem);
1478 truncate_pagecache(inode, offset);
1480 while (!ret && idx > pg_start) {
1481 nr = idx - pg_start;
1487 f2fs_drop_extent_tree(inode);
1489 ret = __exchange_data_block(inode, inode, idx,
1490 idx + delta, nr, false);
1491 f2fs_unlock_op(sbi);
1493 up_write(&F2FS_I(inode)->i_mmap_sem);
1494 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1496 /* write out all moved pages, if possible */
1497 down_write(&F2FS_I(inode)->i_mmap_sem);
1498 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1499 truncate_pagecache(inode, offset);
1500 up_write(&F2FS_I(inode)->i_mmap_sem);
1503 f2fs_i_size_write(inode, new_size);
1507 static int expand_inode_data(struct inode *inode, loff_t offset,
1508 loff_t len, int mode)
1510 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1511 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
1512 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1513 .m_may_create = true };
1515 loff_t new_size = i_size_read(inode);
1519 err = inode_newsize_ok(inode, (len + offset));
1523 err = f2fs_convert_inline_inode(inode);
1527 f2fs_balance_fs(sbi, true);
1529 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
1530 off_end = (offset + len) & (PAGE_SIZE - 1);
1532 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
1533 map.m_len = pg_end - map.m_lblk;
1537 if (f2fs_is_pinned_file(inode))
1538 map.m_seg_type = CURSEG_COLD_DATA;
1540 err = f2fs_map_blocks(inode, &map, 1, (f2fs_is_pinned_file(inode) ?
1541 F2FS_GET_BLOCK_PRE_DIO :
1542 F2FS_GET_BLOCK_PRE_AIO));
1549 last_off = map.m_lblk + map.m_len - 1;
1551 /* update new size to the failed position */
1552 new_size = (last_off == pg_end) ? offset + len :
1553 (loff_t)(last_off + 1) << PAGE_SHIFT;
1555 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
1558 if (new_size > i_size_read(inode)) {
1559 if (mode & FALLOC_FL_KEEP_SIZE)
1560 file_set_keep_isize(inode);
1562 f2fs_i_size_write(inode, new_size);
1568 static long f2fs_fallocate(struct file *file, int mode,
1569 loff_t offset, loff_t len)
1571 struct inode *inode = file_inode(file);
1574 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1576 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1579 /* f2fs only support ->fallocate for regular file */
1580 if (!S_ISREG(inode->i_mode))
1583 if (IS_ENCRYPTED(inode) &&
1584 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
1587 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
1588 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1589 FALLOC_FL_INSERT_RANGE))
1594 if (mode & FALLOC_FL_PUNCH_HOLE) {
1595 if (offset >= inode->i_size)
1598 ret = punch_hole(inode, offset, len);
1599 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1600 ret = f2fs_collapse_range(inode, offset, len);
1601 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1602 ret = f2fs_zero_range(inode, offset, len, mode);
1603 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1604 ret = f2fs_insert_range(inode, offset, len);
1606 ret = expand_inode_data(inode, offset, len, mode);
1610 inode->i_mtime = inode->i_ctime = current_time(inode);
1611 f2fs_mark_inode_dirty_sync(inode, false);
1612 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1616 inode_unlock(inode);
1618 trace_f2fs_fallocate(inode, mode, offset, len, ret);
1622 static int f2fs_release_file(struct inode *inode, struct file *filp)
1625 * f2fs_relase_file is called at every close calls. So we should
1626 * not drop any inmemory pages by close called by other process.
1628 if (!(filp->f_mode & FMODE_WRITE) ||
1629 atomic_read(&inode->i_writecount) != 1)
1632 /* some remained atomic pages should discarded */
1633 if (f2fs_is_atomic_file(inode))
1634 f2fs_drop_inmem_pages(inode);
1635 if (f2fs_is_volatile_file(inode)) {
1636 set_inode_flag(inode, FI_DROP_CACHE);
1637 filemap_fdatawrite(inode->i_mapping);
1638 clear_inode_flag(inode, FI_DROP_CACHE);
1639 clear_inode_flag(inode, FI_VOLATILE_FILE);
1640 stat_dec_volatile_write(inode);
1645 static int f2fs_file_flush(struct file *file, fl_owner_t id)
1647 struct inode *inode = file_inode(file);
1650 * If the process doing a transaction is crashed, we should do
1651 * roll-back. Otherwise, other reader/write can see corrupted database
1652 * until all the writers close its file. Since this should be done
1653 * before dropping file lock, it needs to do in ->flush.
1655 if (f2fs_is_atomic_file(inode) &&
1656 F2FS_I(inode)->inmem_task == current)
1657 f2fs_drop_inmem_pages(inode);
1661 static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
1663 struct f2fs_inode_info *fi = F2FS_I(inode);
1665 /* Is it quota file? Do not allow user to mess with it */
1666 if (IS_NOQUOTA(inode))
1669 if ((iflags ^ fi->i_flags) & F2FS_CASEFOLD_FL) {
1670 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1672 if (!f2fs_empty_dir(inode))
1676 fi->i_flags = iflags | (fi->i_flags & ~mask);
1678 if (fi->i_flags & F2FS_PROJINHERIT_FL)
1679 set_inode_flag(inode, FI_PROJ_INHERIT);
1681 clear_inode_flag(inode, FI_PROJ_INHERIT);
1683 inode->i_ctime = current_time(inode);
1684 f2fs_set_inode_flags(inode);
1685 f2fs_mark_inode_dirty_sync(inode, true);
1689 /* FS_IOC_GETFLAGS and FS_IOC_SETFLAGS support */
1692 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1693 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1694 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1695 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
1698 static const struct {
1701 } f2fs_fsflags_map[] = {
1702 { F2FS_SYNC_FL, FS_SYNC_FL },
1703 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1704 { F2FS_APPEND_FL, FS_APPEND_FL },
1705 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1706 { F2FS_NOATIME_FL, FS_NOATIME_FL },
1707 { F2FS_INDEX_FL, FS_INDEX_FL },
1708 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1709 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
1710 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
1713 #define F2FS_GETTABLE_FS_FL ( \
1721 FS_PROJINHERIT_FL | \
1723 FS_INLINE_DATA_FL | \
1727 #define F2FS_SETTABLE_FS_FL ( \
1734 FS_PROJINHERIT_FL | \
1737 /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
1738 static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
1743 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1744 if (iflags & f2fs_fsflags_map[i].iflag)
1745 fsflags |= f2fs_fsflags_map[i].fsflag;
1750 /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
1751 static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
1756 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1757 if (fsflags & f2fs_fsflags_map[i].fsflag)
1758 iflags |= f2fs_fsflags_map[i].iflag;
1763 static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
1765 struct inode *inode = file_inode(filp);
1766 struct f2fs_inode_info *fi = F2FS_I(inode);
1767 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1769 if (IS_ENCRYPTED(inode))
1770 fsflags |= FS_ENCRYPT_FL;
1771 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
1772 fsflags |= FS_INLINE_DATA_FL;
1773 if (is_inode_flag_set(inode, FI_PIN_FILE))
1774 fsflags |= FS_NOCOW_FL;
1776 fsflags &= F2FS_GETTABLE_FS_FL;
1778 return put_user(fsflags, (int __user *)arg);
1781 static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
1783 struct inode *inode = file_inode(filp);
1784 struct f2fs_inode_info *fi = F2FS_I(inode);
1785 u32 fsflags, old_fsflags;
1789 if (!inode_owner_or_capable(inode))
1792 if (get_user(fsflags, (int __user *)arg))
1795 if (fsflags & ~F2FS_GETTABLE_FS_FL)
1797 fsflags &= F2FS_SETTABLE_FS_FL;
1799 iflags = f2fs_fsflags_to_iflags(fsflags);
1800 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
1803 ret = mnt_want_write_file(filp);
1809 old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1810 ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
1814 ret = f2fs_setflags_common(inode, iflags,
1815 f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
1817 inode_unlock(inode);
1818 mnt_drop_write_file(filp);
1822 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1824 struct inode *inode = file_inode(filp);
1826 return put_user(inode->i_generation, (int __user *)arg);
1829 static int f2fs_ioc_start_atomic_write(struct file *filp)
1831 struct inode *inode = file_inode(filp);
1832 struct f2fs_inode_info *fi = F2FS_I(inode);
1833 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1836 if (!inode_owner_or_capable(inode))
1839 if (!S_ISREG(inode->i_mode))
1842 if (filp->f_flags & O_DIRECT)
1845 ret = mnt_want_write_file(filp);
1851 if (f2fs_is_atomic_file(inode)) {
1852 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
1857 ret = f2fs_convert_inline_inode(inode);
1861 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1864 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
1865 * f2fs_is_atomic_file.
1867 if (get_dirty_pages(inode))
1868 f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
1869 inode->i_ino, get_dirty_pages(inode));
1870 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
1872 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1876 spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
1877 if (list_empty(&fi->inmem_ilist))
1878 list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
1879 spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
1881 /* add inode in inmem_list first and set atomic_file */
1882 set_inode_flag(inode, FI_ATOMIC_FILE);
1883 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
1884 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1886 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1887 F2FS_I(inode)->inmem_task = current;
1888 stat_inc_atomic_write(inode);
1889 stat_update_max_atomic_write(inode);
1891 inode_unlock(inode);
1892 mnt_drop_write_file(filp);
1896 static int f2fs_ioc_commit_atomic_write(struct file *filp)
1898 struct inode *inode = file_inode(filp);
1901 if (!inode_owner_or_capable(inode))
1904 ret = mnt_want_write_file(filp);
1908 f2fs_balance_fs(F2FS_I_SB(inode), true);
1912 if (f2fs_is_volatile_file(inode)) {
1917 if (f2fs_is_atomic_file(inode)) {
1918 ret = f2fs_commit_inmem_pages(inode);
1922 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
1924 f2fs_drop_inmem_pages(inode);
1926 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
1929 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
1930 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
1933 inode_unlock(inode);
1934 mnt_drop_write_file(filp);
1938 static int f2fs_ioc_start_volatile_write(struct file *filp)
1940 struct inode *inode = file_inode(filp);
1943 if (!inode_owner_or_capable(inode))
1946 if (!S_ISREG(inode->i_mode))
1949 ret = mnt_want_write_file(filp);
1955 if (f2fs_is_volatile_file(inode))
1958 ret = f2fs_convert_inline_inode(inode);
1962 stat_inc_volatile_write(inode);
1963 stat_update_max_volatile_write(inode);
1965 set_inode_flag(inode, FI_VOLATILE_FILE);
1966 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1968 inode_unlock(inode);
1969 mnt_drop_write_file(filp);
1973 static int f2fs_ioc_release_volatile_write(struct file *filp)
1975 struct inode *inode = file_inode(filp);
1978 if (!inode_owner_or_capable(inode))
1981 ret = mnt_want_write_file(filp);
1987 if (!f2fs_is_volatile_file(inode))
1990 if (!f2fs_is_first_block_written(inode)) {
1991 ret = truncate_partial_data_page(inode, 0, true);
1995 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
1997 inode_unlock(inode);
1998 mnt_drop_write_file(filp);
2002 static int f2fs_ioc_abort_volatile_write(struct file *filp)
2004 struct inode *inode = file_inode(filp);
2007 if (!inode_owner_or_capable(inode))
2010 ret = mnt_want_write_file(filp);
2016 if (f2fs_is_atomic_file(inode))
2017 f2fs_drop_inmem_pages(inode);
2018 if (f2fs_is_volatile_file(inode)) {
2019 clear_inode_flag(inode, FI_VOLATILE_FILE);
2020 stat_dec_volatile_write(inode);
2021 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
2024 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2026 inode_unlock(inode);
2028 mnt_drop_write_file(filp);
2029 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2033 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2035 struct inode *inode = file_inode(filp);
2036 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2037 struct super_block *sb = sbi->sb;
2041 if (!capable(CAP_SYS_ADMIN))
2044 if (get_user(in, (__u32 __user *)arg))
2047 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2048 ret = mnt_want_write_file(filp);
2054 case F2FS_GOING_DOWN_FULLSYNC:
2055 sb = freeze_bdev(sb->s_bdev);
2061 f2fs_stop_checkpoint(sbi, false);
2062 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2063 thaw_bdev(sb->s_bdev, sb);
2066 case F2FS_GOING_DOWN_METASYNC:
2067 /* do checkpoint only */
2068 ret = f2fs_sync_fs(sb, 1);
2071 f2fs_stop_checkpoint(sbi, false);
2072 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2074 case F2FS_GOING_DOWN_NOSYNC:
2075 f2fs_stop_checkpoint(sbi, false);
2076 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2078 case F2FS_GOING_DOWN_METAFLUSH:
2079 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
2080 f2fs_stop_checkpoint(sbi, false);
2081 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2083 case F2FS_GOING_DOWN_NEED_FSCK:
2084 set_sbi_flag(sbi, SBI_NEED_FSCK);
2085 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2086 set_sbi_flag(sbi, SBI_IS_DIRTY);
2087 /* do checkpoint only */
2088 ret = f2fs_sync_fs(sb, 1);
2095 f2fs_stop_gc_thread(sbi);
2096 f2fs_stop_discard_thread(sbi);
2098 f2fs_drop_discard_cmd(sbi);
2099 clear_opt(sbi, DISCARD);
2101 f2fs_update_time(sbi, REQ_TIME);
2103 if (in != F2FS_GOING_DOWN_FULLSYNC)
2104 mnt_drop_write_file(filp);
2106 trace_f2fs_shutdown(sbi, in, ret);
2111 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2113 struct inode *inode = file_inode(filp);
2114 struct super_block *sb = inode->i_sb;
2115 struct request_queue *q = bdev_get_queue(sb->s_bdev);
2116 struct fstrim_range range;
2119 if (!capable(CAP_SYS_ADMIN))
2122 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
2125 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2129 ret = mnt_want_write_file(filp);
2133 range.minlen = max((unsigned int)range.minlen,
2134 q->limits.discard_granularity);
2135 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
2136 mnt_drop_write_file(filp);
2140 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2143 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2147 static bool uuid_is_nonzero(__u8 u[16])
2151 for (i = 0; i < 16; i++)
2157 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2159 struct inode *inode = file_inode(filp);
2161 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
2164 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2166 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
2169 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2171 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2173 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
2176 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2178 struct inode *inode = file_inode(filp);
2179 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2182 if (!f2fs_sb_has_encrypt(sbi))
2185 err = mnt_want_write_file(filp);
2189 down_write(&sbi->sb_lock);
2191 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2194 /* update superblock with uuid */
2195 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2197 err = f2fs_commit_super(sbi, false);
2200 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
2204 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2208 up_write(&sbi->sb_lock);
2209 mnt_drop_write_file(filp);
2213 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2215 struct inode *inode = file_inode(filp);
2216 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2220 if (!capable(CAP_SYS_ADMIN))
2223 if (get_user(sync, (__u32 __user *)arg))
2226 if (f2fs_readonly(sbi->sb))
2229 ret = mnt_want_write_file(filp);
2234 if (!mutex_trylock(&sbi->gc_mutex)) {
2239 mutex_lock(&sbi->gc_mutex);
2242 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
2244 mnt_drop_write_file(filp);
2248 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2250 struct inode *inode = file_inode(filp);
2251 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2252 struct f2fs_gc_range range;
2256 if (!capable(CAP_SYS_ADMIN))
2259 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2263 if (f2fs_readonly(sbi->sb))
2266 end = range.start + range.len;
2267 if (end < range.start || range.start < MAIN_BLKADDR(sbi) ||
2268 end >= MAX_BLKADDR(sbi))
2271 ret = mnt_want_write_file(filp);
2277 if (!mutex_trylock(&sbi->gc_mutex)) {
2282 mutex_lock(&sbi->gc_mutex);
2285 ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
2286 range.start += BLKS_PER_SEC(sbi);
2287 if (range.start <= end)
2290 mnt_drop_write_file(filp);
2294 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
2296 struct inode *inode = file_inode(filp);
2297 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2300 if (!capable(CAP_SYS_ADMIN))
2303 if (f2fs_readonly(sbi->sb))
2306 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2307 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
2311 ret = mnt_want_write_file(filp);
2315 ret = f2fs_sync_fs(sbi->sb, 1);
2317 mnt_drop_write_file(filp);
2321 static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2323 struct f2fs_defragment *range)
2325 struct inode *inode = file_inode(filp);
2326 struct f2fs_map_blocks map = { .m_next_extent = NULL,
2327 .m_seg_type = NO_CHECK_TYPE ,
2328 .m_may_create = false };
2329 struct extent_info ei = {0, 0, 0};
2330 pgoff_t pg_start, pg_end, next_pgofs;
2331 unsigned int blk_per_seg = sbi->blocks_per_seg;
2332 unsigned int total = 0, sec_num;
2333 block_t blk_end = 0;
2334 bool fragmented = false;
2337 /* if in-place-update policy is enabled, don't waste time here */
2338 if (f2fs_should_update_inplace(inode, NULL))
2341 pg_start = range->start >> PAGE_SHIFT;
2342 pg_end = (range->start + range->len) >> PAGE_SHIFT;
2344 f2fs_balance_fs(sbi, true);
2348 /* writeback all dirty pages in the range */
2349 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
2350 range->start + range->len - 1);
2355 * lookup mapping info in extent cache, skip defragmenting if physical
2356 * block addresses are continuous.
2358 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2359 if (ei.fofs + ei.len >= pg_end)
2363 map.m_lblk = pg_start;
2364 map.m_next_pgofs = &next_pgofs;
2367 * lookup mapping info in dnode page cache, skip defragmenting if all
2368 * physical block addresses are continuous even if there are hole(s)
2369 * in logical blocks.
2371 while (map.m_lblk < pg_end) {
2372 map.m_len = pg_end - map.m_lblk;
2373 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2377 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2378 map.m_lblk = next_pgofs;
2382 if (blk_end && blk_end != map.m_pblk)
2385 /* record total count of block that we're going to move */
2388 blk_end = map.m_pblk + map.m_len;
2390 map.m_lblk += map.m_len;
2398 sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
2401 * make sure there are enough free section for LFS allocation, this can
2402 * avoid defragment running in SSR mode when free section are allocated
2405 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
2410 map.m_lblk = pg_start;
2411 map.m_len = pg_end - pg_start;
2414 while (map.m_lblk < pg_end) {
2419 map.m_len = pg_end - map.m_lblk;
2420 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2424 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2425 map.m_lblk = next_pgofs;
2429 set_inode_flag(inode, FI_DO_DEFRAG);
2432 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2435 page = f2fs_get_lock_data_page(inode, idx, true);
2437 err = PTR_ERR(page);
2441 set_page_dirty(page);
2442 f2fs_put_page(page, 1);
2451 if (map.m_lblk < pg_end && cnt < blk_per_seg)
2454 clear_inode_flag(inode, FI_DO_DEFRAG);
2456 err = filemap_fdatawrite(inode->i_mapping);
2461 clear_inode_flag(inode, FI_DO_DEFRAG);
2463 inode_unlock(inode);
2465 range->len = (u64)total << PAGE_SHIFT;
2469 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2471 struct inode *inode = file_inode(filp);
2472 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2473 struct f2fs_defragment range;
2476 if (!capable(CAP_SYS_ADMIN))
2479 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
2482 if (f2fs_readonly(sbi->sb))
2485 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
2489 /* verify alignment of offset & size */
2490 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2493 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
2494 sbi->max_file_blocks))
2497 err = mnt_want_write_file(filp);
2501 err = f2fs_defragment_range(sbi, filp, &range);
2502 mnt_drop_write_file(filp);
2504 f2fs_update_time(sbi, REQ_TIME);
2508 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2515 static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2516 struct file *file_out, loff_t pos_out, size_t len)
2518 struct inode *src = file_inode(file_in);
2519 struct inode *dst = file_inode(file_out);
2520 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2521 size_t olen = len, dst_max_i_size = 0;
2525 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2526 src->i_sb != dst->i_sb)
2529 if (unlikely(f2fs_readonly(src->i_sb)))
2532 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2535 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
2539 if (pos_in == pos_out)
2541 if (pos_out > pos_in && pos_out < pos_in + len)
2548 if (!inode_trylock(dst))
2553 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2556 olen = len = src->i_size - pos_in;
2557 if (pos_in + len == src->i_size)
2558 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2564 dst_osize = dst->i_size;
2565 if (pos_out + olen > dst->i_size)
2566 dst_max_i_size = pos_out + olen;
2568 /* verify the end result is block aligned */
2569 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2570 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2571 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2574 ret = f2fs_convert_inline_inode(src);
2578 ret = f2fs_convert_inline_inode(dst);
2582 /* write out all dirty pages from offset */
2583 ret = filemap_write_and_wait_range(src->i_mapping,
2584 pos_in, pos_in + len);
2588 ret = filemap_write_and_wait_range(dst->i_mapping,
2589 pos_out, pos_out + len);
2593 f2fs_balance_fs(sbi, true);
2595 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2598 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2603 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2604 pos_out >> F2FS_BLKSIZE_BITS,
2605 len >> F2FS_BLKSIZE_BITS, false);
2609 f2fs_i_size_write(dst, dst_max_i_size);
2610 else if (dst_osize != dst->i_size)
2611 f2fs_i_size_write(dst, dst_osize);
2613 f2fs_unlock_op(sbi);
2616 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
2618 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2627 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2629 struct f2fs_move_range range;
2633 if (!(filp->f_mode & FMODE_READ) ||
2634 !(filp->f_mode & FMODE_WRITE))
2637 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2641 dst = fdget(range.dst_fd);
2645 if (!(dst.file->f_mode & FMODE_WRITE)) {
2650 err = mnt_want_write_file(filp);
2654 err = f2fs_move_file_range(filp, range.pos_in, dst.file,
2655 range.pos_out, range.len);
2657 mnt_drop_write_file(filp);
2661 if (copy_to_user((struct f2fs_move_range __user *)arg,
2662 &range, sizeof(range)))
2669 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2671 struct inode *inode = file_inode(filp);
2672 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2673 struct sit_info *sm = SIT_I(sbi);
2674 unsigned int start_segno = 0, end_segno = 0;
2675 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2676 struct f2fs_flush_device range;
2679 if (!capable(CAP_SYS_ADMIN))
2682 if (f2fs_readonly(sbi->sb))
2685 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2688 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2692 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2693 __is_large_section(sbi)) {
2694 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2695 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
2699 ret = mnt_want_write_file(filp);
2703 if (range.dev_num != 0)
2704 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2705 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2707 start_segno = sm->last_victim[FLUSH_DEVICE];
2708 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2709 start_segno = dev_start_segno;
2710 end_segno = min(start_segno + range.segments, dev_end_segno);
2712 while (start_segno < end_segno) {
2713 if (!mutex_trylock(&sbi->gc_mutex)) {
2717 sm->last_victim[GC_CB] = end_segno + 1;
2718 sm->last_victim[GC_GREEDY] = end_segno + 1;
2719 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2720 ret = f2fs_gc(sbi, true, true, start_segno);
2728 mnt_drop_write_file(filp);
2732 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2734 struct inode *inode = file_inode(filp);
2735 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2737 /* Must validate to set it with SQLite behavior in Android. */
2738 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2740 return put_user(sb_feature, (u32 __user *)arg);
2744 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2746 struct dquot *transfer_to[MAXQUOTAS] = {};
2747 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2748 struct super_block *sb = sbi->sb;
2751 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2752 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2753 err = __dquot_transfer(inode, transfer_to);
2755 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2756 dqput(transfer_to[PRJQUOTA]);
2761 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2763 struct inode *inode = file_inode(filp);
2764 struct f2fs_inode_info *fi = F2FS_I(inode);
2765 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2770 if (!f2fs_sb_has_project_quota(sbi)) {
2771 if (projid != F2FS_DEF_PROJID)
2777 if (!f2fs_has_extra_attr(inode))
2780 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2782 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
2786 /* Is it quota file? Do not allow user to mess with it */
2787 if (IS_NOQUOTA(inode))
2790 ipage = f2fs_get_node_page(sbi, inode->i_ino);
2792 return PTR_ERR(ipage);
2794 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
2797 f2fs_put_page(ipage, 1);
2800 f2fs_put_page(ipage, 1);
2802 err = dquot_initialize(inode);
2807 err = f2fs_transfer_project_quota(inode, kprojid);
2811 F2FS_I(inode)->i_projid = kprojid;
2812 inode->i_ctime = current_time(inode);
2813 f2fs_mark_inode_dirty_sync(inode, true);
2815 f2fs_unlock_op(sbi);
2819 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2824 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2826 if (projid != F2FS_DEF_PROJID)
2832 /* FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR support */
2835 * To make a new on-disk f2fs i_flag gettable via FS_IOC_FSGETXATTR and settable
2836 * via FS_IOC_FSSETXATTR, add an entry for it to f2fs_xflags_map[], and add its
2837 * FS_XFLAG_* equivalent to F2FS_SUPPORTED_XFLAGS.
2840 static const struct {
2843 } f2fs_xflags_map[] = {
2844 { F2FS_SYNC_FL, FS_XFLAG_SYNC },
2845 { F2FS_IMMUTABLE_FL, FS_XFLAG_IMMUTABLE },
2846 { F2FS_APPEND_FL, FS_XFLAG_APPEND },
2847 { F2FS_NODUMP_FL, FS_XFLAG_NODUMP },
2848 { F2FS_NOATIME_FL, FS_XFLAG_NOATIME },
2849 { F2FS_PROJINHERIT_FL, FS_XFLAG_PROJINHERIT },
2852 #define F2FS_SUPPORTED_XFLAGS ( \
2854 FS_XFLAG_IMMUTABLE | \
2857 FS_XFLAG_NOATIME | \
2858 FS_XFLAG_PROJINHERIT)
2860 /* Convert f2fs on-disk i_flags to FS_IOC_FS{GET,SET}XATTR flags */
2861 static inline u32 f2fs_iflags_to_xflags(u32 iflags)
2866 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
2867 if (iflags & f2fs_xflags_map[i].iflag)
2868 xflags |= f2fs_xflags_map[i].xflag;
2873 /* Convert FS_IOC_FS{GET,SET}XATTR flags to f2fs on-disk i_flags */
2874 static inline u32 f2fs_xflags_to_iflags(u32 xflags)
2879 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
2880 if (xflags & f2fs_xflags_map[i].xflag)
2881 iflags |= f2fs_xflags_map[i].iflag;
2886 static void f2fs_fill_fsxattr(struct inode *inode, struct fsxattr *fa)
2888 struct f2fs_inode_info *fi = F2FS_I(inode);
2890 simple_fill_fsxattr(fa, f2fs_iflags_to_xflags(fi->i_flags));
2892 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
2893 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
2896 static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
2898 struct inode *inode = file_inode(filp);
2901 f2fs_fill_fsxattr(inode, &fa);
2903 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
2908 static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
2910 struct inode *inode = file_inode(filp);
2911 struct fsxattr fa, old_fa;
2915 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
2918 /* Make sure caller has proper permission */
2919 if (!inode_owner_or_capable(inode))
2922 if (fa.fsx_xflags & ~F2FS_SUPPORTED_XFLAGS)
2925 iflags = f2fs_xflags_to_iflags(fa.fsx_xflags);
2926 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
2929 err = mnt_want_write_file(filp);
2935 f2fs_fill_fsxattr(inode, &old_fa);
2936 err = vfs_ioc_fssetxattr_check(inode, &old_fa, &fa);
2940 err = f2fs_setflags_common(inode, iflags,
2941 f2fs_xflags_to_iflags(F2FS_SUPPORTED_XFLAGS));
2945 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
2947 inode_unlock(inode);
2948 mnt_drop_write_file(filp);
2952 int f2fs_pin_file_control(struct inode *inode, bool inc)
2954 struct f2fs_inode_info *fi = F2FS_I(inode);
2955 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2957 /* Use i_gc_failures for normal file as a risk signal. */
2959 f2fs_i_gc_failures_write(inode,
2960 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
2962 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
2963 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
2964 __func__, inode->i_ino,
2965 fi->i_gc_failures[GC_FAILURE_PIN]);
2966 clear_inode_flag(inode, FI_PIN_FILE);
2972 static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
2974 struct inode *inode = file_inode(filp);
2978 if (get_user(pin, (__u32 __user *)arg))
2981 if (!S_ISREG(inode->i_mode))
2984 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
2987 ret = mnt_want_write_file(filp);
2993 if (f2fs_should_update_outplace(inode, NULL)) {
2999 clear_inode_flag(inode, FI_PIN_FILE);
3000 f2fs_i_gc_failures_write(inode, 0);
3004 if (f2fs_pin_file_control(inode, false)) {
3008 ret = f2fs_convert_inline_inode(inode);
3012 set_inode_flag(inode, FI_PIN_FILE);
3013 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3015 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3017 inode_unlock(inode);
3018 mnt_drop_write_file(filp);
3022 static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3024 struct inode *inode = file_inode(filp);
3027 if (is_inode_flag_set(inode, FI_PIN_FILE))
3028 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3029 return put_user(pin, (u32 __user *)arg);
3032 int f2fs_precache_extents(struct inode *inode)
3034 struct f2fs_inode_info *fi = F2FS_I(inode);
3035 struct f2fs_map_blocks map;
3036 pgoff_t m_next_extent;
3040 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3044 map.m_next_pgofs = NULL;
3045 map.m_next_extent = &m_next_extent;
3046 map.m_seg_type = NO_CHECK_TYPE;
3047 map.m_may_create = false;
3048 end = F2FS_I_SB(inode)->max_file_blocks;
3050 while (map.m_lblk < end) {
3051 map.m_len = end - map.m_lblk;
3053 down_write(&fi->i_gc_rwsem[WRITE]);
3054 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
3055 up_write(&fi->i_gc_rwsem[WRITE]);
3059 map.m_lblk = m_next_extent;
3065 static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3067 return f2fs_precache_extents(file_inode(filp));
3070 static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3072 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3076 if (!capable(CAP_SYS_ADMIN))
3079 if (f2fs_readonly(sbi->sb))
3082 if (copy_from_user(&block_count, (void __user *)arg,
3083 sizeof(block_count)))
3086 ret = f2fs_resize_fs(sbi, block_count);
3091 static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
3093 struct inode *inode = file_inode(filp);
3094 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3099 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3103 down_read(&sbi->sb_lock);
3104 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3105 ARRAY_SIZE(sbi->raw_super->volume_name),
3106 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3107 up_read(&sbi->sb_lock);
3109 if (copy_to_user((char __user *)arg, vbuf,
3110 min(FSLABEL_MAX, count)))
3117 static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
3119 struct inode *inode = file_inode(filp);
3120 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3124 if (!capable(CAP_SYS_ADMIN))
3127 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3129 return PTR_ERR(vbuf);
3131 err = mnt_want_write_file(filp);
3135 down_write(&sbi->sb_lock);
3137 memset(sbi->raw_super->volume_name, 0,
3138 sizeof(sbi->raw_super->volume_name));
3139 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3140 sbi->raw_super->volume_name,
3141 ARRAY_SIZE(sbi->raw_super->volume_name));
3143 err = f2fs_commit_super(sbi, false);
3145 up_write(&sbi->sb_lock);
3147 mnt_drop_write_file(filp);
3153 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
3155 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
3157 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
3161 case F2FS_IOC_GETFLAGS:
3162 return f2fs_ioc_getflags(filp, arg);
3163 case F2FS_IOC_SETFLAGS:
3164 return f2fs_ioc_setflags(filp, arg);
3165 case F2FS_IOC_GETVERSION:
3166 return f2fs_ioc_getversion(filp, arg);
3167 case F2FS_IOC_START_ATOMIC_WRITE:
3168 return f2fs_ioc_start_atomic_write(filp);
3169 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
3170 return f2fs_ioc_commit_atomic_write(filp);
3171 case F2FS_IOC_START_VOLATILE_WRITE:
3172 return f2fs_ioc_start_volatile_write(filp);
3173 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
3174 return f2fs_ioc_release_volatile_write(filp);
3175 case F2FS_IOC_ABORT_VOLATILE_WRITE:
3176 return f2fs_ioc_abort_volatile_write(filp);
3177 case F2FS_IOC_SHUTDOWN:
3178 return f2fs_ioc_shutdown(filp, arg);
3180 return f2fs_ioc_fitrim(filp, arg);
3181 case F2FS_IOC_SET_ENCRYPTION_POLICY:
3182 return f2fs_ioc_set_encryption_policy(filp, arg);
3183 case F2FS_IOC_GET_ENCRYPTION_POLICY:
3184 return f2fs_ioc_get_encryption_policy(filp, arg);
3185 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
3186 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
3187 case F2FS_IOC_GARBAGE_COLLECT:
3188 return f2fs_ioc_gc(filp, arg);
3189 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
3190 return f2fs_ioc_gc_range(filp, arg);
3191 case F2FS_IOC_WRITE_CHECKPOINT:
3192 return f2fs_ioc_write_checkpoint(filp, arg);
3193 case F2FS_IOC_DEFRAGMENT:
3194 return f2fs_ioc_defragment(filp, arg);
3195 case F2FS_IOC_MOVE_RANGE:
3196 return f2fs_ioc_move_range(filp, arg);
3197 case F2FS_IOC_FLUSH_DEVICE:
3198 return f2fs_ioc_flush_device(filp, arg);
3199 case F2FS_IOC_GET_FEATURES:
3200 return f2fs_ioc_get_features(filp, arg);
3201 case F2FS_IOC_FSGETXATTR:
3202 return f2fs_ioc_fsgetxattr(filp, arg);
3203 case F2FS_IOC_FSSETXATTR:
3204 return f2fs_ioc_fssetxattr(filp, arg);
3205 case F2FS_IOC_GET_PIN_FILE:
3206 return f2fs_ioc_get_pin_file(filp, arg);
3207 case F2FS_IOC_SET_PIN_FILE:
3208 return f2fs_ioc_set_pin_file(filp, arg);
3209 case F2FS_IOC_PRECACHE_EXTENTS:
3210 return f2fs_ioc_precache_extents(filp, arg);
3211 case F2FS_IOC_RESIZE_FS:
3212 return f2fs_ioc_resize_fs(filp, arg);
3213 case F2FS_IOC_GET_VOLUME_NAME:
3214 return f2fs_get_volume_name(filp, arg);
3215 case F2FS_IOC_SET_VOLUME_NAME:
3216 return f2fs_set_volume_name(filp, arg);
3222 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
3224 struct file *file = iocb->ki_filp;
3225 struct inode *inode = file_inode(file);
3228 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
3233 if (iocb->ki_flags & IOCB_NOWAIT) {
3234 if (!inode_trylock(inode)) {
3242 ret = generic_write_checks(iocb, from);
3244 bool preallocated = false;
3245 size_t target_size = 0;
3248 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
3249 set_inode_flag(inode, FI_NO_PREALLOC);
3251 if ((iocb->ki_flags & IOCB_NOWAIT)) {
3252 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
3253 iov_iter_count(from)) ||
3254 f2fs_has_inline_data(inode) ||
3255 f2fs_force_buffered_io(inode, iocb, from)) {
3256 clear_inode_flag(inode, FI_NO_PREALLOC);
3257 inode_unlock(inode);
3262 preallocated = true;
3263 target_size = iocb->ki_pos + iov_iter_count(from);
3265 err = f2fs_preallocate_blocks(iocb, from);
3267 clear_inode_flag(inode, FI_NO_PREALLOC);
3268 inode_unlock(inode);
3273 ret = __generic_file_write_iter(iocb, from);
3274 clear_inode_flag(inode, FI_NO_PREALLOC);
3276 /* if we couldn't write data, we should deallocate blocks. */
3277 if (preallocated && i_size_read(inode) < target_size)
3278 f2fs_truncate(inode);
3281 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
3283 inode_unlock(inode);
3285 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
3286 iov_iter_count(from), ret);
3288 ret = generic_write_sync(iocb, ret);
3292 #ifdef CONFIG_COMPAT
3293 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
3296 case F2FS_IOC32_GETFLAGS:
3297 cmd = F2FS_IOC_GETFLAGS;
3299 case F2FS_IOC32_SETFLAGS:
3300 cmd = F2FS_IOC_SETFLAGS;
3302 case F2FS_IOC32_GETVERSION:
3303 cmd = F2FS_IOC_GETVERSION;
3305 case F2FS_IOC_START_ATOMIC_WRITE:
3306 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
3307 case F2FS_IOC_START_VOLATILE_WRITE:
3308 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
3309 case F2FS_IOC_ABORT_VOLATILE_WRITE:
3310 case F2FS_IOC_SHUTDOWN:
3311 case F2FS_IOC_SET_ENCRYPTION_POLICY:
3312 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
3313 case F2FS_IOC_GET_ENCRYPTION_POLICY:
3314 case F2FS_IOC_GARBAGE_COLLECT:
3315 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
3316 case F2FS_IOC_WRITE_CHECKPOINT:
3317 case F2FS_IOC_DEFRAGMENT:
3318 case F2FS_IOC_MOVE_RANGE:
3319 case F2FS_IOC_FLUSH_DEVICE:
3320 case F2FS_IOC_GET_FEATURES:
3321 case F2FS_IOC_FSGETXATTR:
3322 case F2FS_IOC_FSSETXATTR:
3323 case F2FS_IOC_GET_PIN_FILE:
3324 case F2FS_IOC_SET_PIN_FILE:
3325 case F2FS_IOC_PRECACHE_EXTENTS:
3326 case F2FS_IOC_RESIZE_FS:
3327 case F2FS_IOC_GET_VOLUME_NAME:
3328 case F2FS_IOC_SET_VOLUME_NAME:
3331 return -ENOIOCTLCMD;
3333 return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
3337 const struct file_operations f2fs_file_operations = {
3338 .llseek = f2fs_llseek,
3339 .read_iter = generic_file_read_iter,
3340 .write_iter = f2fs_file_write_iter,
3341 .open = f2fs_file_open,
3342 .release = f2fs_release_file,
3343 .mmap = f2fs_file_mmap,
3344 .flush = f2fs_file_flush,
3345 .fsync = f2fs_sync_file,
3346 .fallocate = f2fs_fallocate,
3347 .unlocked_ioctl = f2fs_ioctl,
3348 #ifdef CONFIG_COMPAT
3349 .compat_ioctl = f2fs_compat_ioctl,
3351 .splice_read = generic_file_splice_read,
3352 .splice_write = iter_file_splice_write,