4 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
5 * http://www.samsung.com/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/f2fs_fs.h>
13 #include <linux/stat.h>
14 #include <linux/buffer_head.h>
15 #include <linux/writeback.h>
16 #include <linux/blkdev.h>
17 #include <linux/falloc.h>
18 #include <linux/types.h>
19 #include <linux/compat.h>
20 #include <linux/uaccess.h>
21 #include <linux/mount.h>
22 #include <linux/pagevec.h>
23 #include <linux/uio.h>
24 #include <linux/uuid.h>
25 #include <linux/file.h>
34 #include <trace/events/f2fs.h>
36 static int f2fs_filemap_fault(struct vm_fault *vmf)
38 struct inode *inode = file_inode(vmf->vma->vm_file);
41 down_read(&F2FS_I(inode)->i_mmap_sem);
42 err = filemap_fault(vmf);
43 up_read(&F2FS_I(inode)->i_mmap_sem);
48 static int 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;
56 sb_start_pagefault(inode->i_sb);
58 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
60 /* block allocation */
62 set_new_dnode(&dn, inode, NULL, NULL, 0);
63 err = f2fs_reserve_block(&dn, page->index);
71 f2fs_balance_fs(sbi, dn.node_changed);
73 file_update_time(vmf->vma->vm_file);
74 down_read(&F2FS_I(inode)->i_mmap_sem);
76 if (unlikely(page->mapping != inode->i_mapping ||
77 page_offset(page) > i_size_read(inode) ||
78 !PageUptodate(page))) {
85 * check to see if the page is mapped already (no holes)
87 if (PageMappedToDisk(page))
90 /* page is wholly or partially inside EOF */
91 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
94 offset = i_size_read(inode) & ~PAGE_MASK;
95 zero_user_segment(page, offset, PAGE_SIZE);
98 if (!PageUptodate(page))
99 SetPageUptodate(page);
101 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
103 trace_f2fs_vm_page_mkwrite(page, DATA);
106 f2fs_wait_on_page_writeback(page, DATA, false);
108 /* wait for GCed encrypted page writeback */
109 if (f2fs_encrypted_file(inode))
110 f2fs_wait_on_block_writeback(sbi, dn.data_blkaddr);
113 up_read(&F2FS_I(inode)->i_mmap_sem);
115 sb_end_pagefault(inode->i_sb);
116 f2fs_update_time(sbi, REQ_TIME);
117 return block_page_mkwrite_return(err);
120 static const struct vm_operations_struct f2fs_file_vm_ops = {
121 .fault = f2fs_filemap_fault,
122 .map_pages = filemap_map_pages,
123 .page_mkwrite = f2fs_vm_page_mkwrite,
126 static int get_parent_ino(struct inode *inode, nid_t *pino)
128 struct dentry *dentry;
130 inode = igrab(inode);
131 dentry = d_find_any_alias(inode);
136 *pino = parent_ino(dentry);
141 static inline bool need_do_checkpoint(struct inode *inode)
143 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
144 bool need_cp = false;
146 if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
148 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
150 else if (file_wrong_pino(inode))
152 else if (!space_for_roll_forward(sbi))
154 else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
156 else if (test_opt(sbi, FASTBOOT))
158 else if (sbi->active_logs == 2)
164 static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
166 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
168 /* But we need to avoid that there are some inode updates */
169 if ((i && PageDirty(i)) || need_inode_block_update(sbi, ino))
175 static void try_to_fix_pino(struct inode *inode)
177 struct f2fs_inode_info *fi = F2FS_I(inode);
180 down_write(&fi->i_sem);
181 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
182 get_parent_ino(inode, &pino)) {
183 f2fs_i_pino_write(inode, pino);
184 file_got_pino(inode);
186 up_write(&fi->i_sem);
189 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
190 int datasync, bool atomic)
192 struct inode *inode = file->f_mapping->host;
193 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
194 nid_t ino = inode->i_ino;
196 bool need_cp = false;
197 struct writeback_control wbc = {
198 .sync_mode = WB_SYNC_ALL,
199 .nr_to_write = LONG_MAX,
203 if (unlikely(f2fs_readonly(inode->i_sb)))
206 trace_f2fs_sync_file_enter(inode);
208 /* if fdatasync is triggered, let's do in-place-update */
209 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
210 set_inode_flag(inode, FI_NEED_IPU);
211 ret = file_write_and_wait_range(file, start, end);
212 clear_inode_flag(inode, FI_NEED_IPU);
215 trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
219 /* if the inode is dirty, let's recover all the time */
220 if (!f2fs_skip_inode_update(inode, datasync)) {
221 f2fs_write_inode(inode, NULL);
226 * if there is no written data, don't waste time to write recovery info.
228 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
229 !exist_written_data(sbi, ino, APPEND_INO)) {
231 /* it may call write_inode just prior to fsync */
232 if (need_inode_page_update(sbi, ino))
235 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
236 exist_written_data(sbi, ino, UPDATE_INO))
242 * Both of fdatasync() and fsync() are able to be recovered from
245 down_read(&F2FS_I(inode)->i_sem);
246 need_cp = need_do_checkpoint(inode);
247 up_read(&F2FS_I(inode)->i_sem);
250 /* all the dirty node pages should be flushed for POR */
251 ret = f2fs_sync_fs(inode->i_sb, 1);
254 * We've secured consistency through sync_fs. Following pino
255 * will be used only for fsynced inodes after checkpoint.
257 try_to_fix_pino(inode);
258 clear_inode_flag(inode, FI_APPEND_WRITE);
259 clear_inode_flag(inode, FI_UPDATE_WRITE);
263 ret = fsync_node_pages(sbi, inode, &wbc, atomic);
267 /* if cp_error was enabled, we should avoid infinite loop */
268 if (unlikely(f2fs_cp_error(sbi))) {
273 if (need_inode_block_update(sbi, ino)) {
274 f2fs_mark_inode_dirty_sync(inode, true);
275 f2fs_write_inode(inode, NULL);
280 * If it's atomic_write, it's just fine to keep write ordering. So
281 * here we don't need to wait for node write completion, since we use
282 * node chain which serializes node blocks. If one of node writes are
283 * reordered, we can see simply broken chain, resulting in stopping
284 * roll-forward recovery. It means we'll recover all or none node blocks
288 ret = wait_on_node_pages_writeback(sbi, ino);
293 /* once recovery info is written, don't need to tack this */
294 remove_ino_entry(sbi, ino, APPEND_INO);
295 clear_inode_flag(inode, FI_APPEND_WRITE);
297 remove_ino_entry(sbi, ino, UPDATE_INO);
298 clear_inode_flag(inode, FI_UPDATE_WRITE);
300 ret = f2fs_issue_flush(sbi);
301 f2fs_update_time(sbi, REQ_TIME);
303 trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
304 f2fs_trace_ios(NULL, 1);
308 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
310 return f2fs_do_sync_file(file, start, end, datasync, false);
313 static pgoff_t __get_first_dirty_index(struct address_space *mapping,
314 pgoff_t pgofs, int whence)
319 if (whence != SEEK_DATA)
322 /* find first dirty page index */
323 pagevec_init(&pvec, 0);
324 nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs,
325 PAGECACHE_TAG_DIRTY, 1);
326 pgofs = nr_pages ? pvec.pages[0]->index : ULONG_MAX;
327 pagevec_release(&pvec);
331 static bool __found_offset(block_t blkaddr, pgoff_t dirty, pgoff_t pgofs,
336 if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
337 (blkaddr != NEW_ADDR && blkaddr != NULL_ADDR))
341 if (blkaddr == NULL_ADDR)
348 static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
350 struct inode *inode = file->f_mapping->host;
351 loff_t maxbytes = inode->i_sb->s_maxbytes;
352 struct dnode_of_data dn;
353 pgoff_t pgofs, end_offset, dirty;
354 loff_t data_ofs = offset;
360 isize = i_size_read(inode);
364 /* handle inline data case */
365 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
366 if (whence == SEEK_HOLE)
371 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
373 dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
375 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
376 set_new_dnode(&dn, inode, NULL, NULL, 0);
377 err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
378 if (err && err != -ENOENT) {
380 } else if (err == -ENOENT) {
381 /* direct node does not exists */
382 if (whence == SEEK_DATA) {
383 pgofs = get_next_page_offset(&dn, pgofs);
390 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
392 /* find data/hole in dnode block */
393 for (; dn.ofs_in_node < end_offset;
394 dn.ofs_in_node++, pgofs++,
395 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
397 blkaddr = datablock_addr(dn.inode,
398 dn.node_page, dn.ofs_in_node);
400 if (__found_offset(blkaddr, dirty, pgofs, whence)) {
408 if (whence == SEEK_DATA)
411 if (whence == SEEK_HOLE && data_ofs > isize)
414 return vfs_setpos(file, data_ofs, maxbytes);
420 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
422 struct inode *inode = file->f_mapping->host;
423 loff_t maxbytes = inode->i_sb->s_maxbytes;
429 return generic_file_llseek_size(file, offset, whence,
430 maxbytes, i_size_read(inode));
435 return f2fs_seek_block(file, offset, whence);
441 static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
443 struct inode *inode = file_inode(file);
446 /* we don't need to use inline_data strictly */
447 err = f2fs_convert_inline_inode(inode);
452 vma->vm_ops = &f2fs_file_vm_ops;
456 static int f2fs_file_open(struct inode *inode, struct file *filp)
460 if (f2fs_encrypted_inode(inode)) {
461 int ret = fscrypt_get_encryption_info(inode);
464 if (!fscrypt_has_encryption_key(inode))
467 dir = dget_parent(file_dentry(filp));
468 if (f2fs_encrypted_inode(d_inode(dir)) &&
469 !fscrypt_has_permitted_context(d_inode(dir), inode)) {
474 return dquot_file_open(inode, filp);
477 int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
479 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
480 struct f2fs_node *raw_node;
481 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
485 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
486 base = get_extra_isize(dn->inode);
488 raw_node = F2FS_NODE(dn->node_page);
489 addr = blkaddr_in_node(raw_node) + base + ofs;
491 for (; count > 0; count--, addr++, dn->ofs_in_node++) {
492 block_t blkaddr = le32_to_cpu(*addr);
493 if (blkaddr == NULL_ADDR)
496 dn->data_blkaddr = NULL_ADDR;
497 set_data_blkaddr(dn);
498 invalidate_blocks(sbi, blkaddr);
499 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
500 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
507 * once we invalidate valid blkaddr in range [ofs, ofs + count],
508 * we will invalidate all blkaddr in the whole range.
510 fofs = start_bidx_of_node(ofs_of_node(dn->node_page),
512 f2fs_update_extent_cache_range(dn, fofs, 0, len);
513 dec_valid_block_count(sbi, dn->inode, nr_free);
515 dn->ofs_in_node = ofs;
517 f2fs_update_time(sbi, REQ_TIME);
518 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
519 dn->ofs_in_node, nr_free);
523 void truncate_data_blocks(struct dnode_of_data *dn)
525 truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);
528 static int truncate_partial_data_page(struct inode *inode, u64 from,
531 unsigned offset = from & (PAGE_SIZE - 1);
532 pgoff_t index = from >> PAGE_SHIFT;
533 struct address_space *mapping = inode->i_mapping;
536 if (!offset && !cache_only)
540 page = find_lock_page(mapping, index);
541 if (page && PageUptodate(page))
543 f2fs_put_page(page, 1);
547 page = get_lock_data_page(inode, index, true);
549 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
551 f2fs_wait_on_page_writeback(page, DATA, true);
552 zero_user(page, offset, PAGE_SIZE - offset);
554 /* An encrypted inode should have a key and truncate the last page. */
555 f2fs_bug_on(F2FS_I_SB(inode), cache_only && f2fs_encrypted_inode(inode));
557 set_page_dirty(page);
558 f2fs_put_page(page, 1);
562 int truncate_blocks(struct inode *inode, u64 from, bool lock)
564 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
565 unsigned int blocksize = inode->i_sb->s_blocksize;
566 struct dnode_of_data dn;
568 int count = 0, err = 0;
570 bool truncate_page = false;
572 trace_f2fs_truncate_blocks_enter(inode, from);
574 free_from = (pgoff_t)F2FS_BYTES_TO_BLK(from + blocksize - 1);
576 if (free_from >= sbi->max_file_blocks)
582 ipage = get_node_page(sbi, inode->i_ino);
584 err = PTR_ERR(ipage);
588 if (f2fs_has_inline_data(inode)) {
589 truncate_inline_inode(inode, ipage, from);
590 f2fs_put_page(ipage, 1);
591 truncate_page = true;
595 set_new_dnode(&dn, inode, ipage, NULL, 0);
596 err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
603 count = ADDRS_PER_PAGE(dn.node_page, inode);
605 count -= dn.ofs_in_node;
606 f2fs_bug_on(sbi, count < 0);
608 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
609 truncate_data_blocks_range(&dn, count);
615 err = truncate_inode_blocks(inode, free_from);
620 /* lastly zero out the first data page */
622 err = truncate_partial_data_page(inode, from, truncate_page);
624 trace_f2fs_truncate_blocks_exit(inode, err);
628 int f2fs_truncate(struct inode *inode)
632 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
633 S_ISLNK(inode->i_mode)))
636 trace_f2fs_truncate(inode);
638 #ifdef CONFIG_F2FS_FAULT_INJECTION
639 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
640 f2fs_show_injection_info(FAULT_TRUNCATE);
644 /* we should check inline_data size */
645 if (!f2fs_may_inline_data(inode)) {
646 err = f2fs_convert_inline_inode(inode);
651 err = truncate_blocks(inode, i_size_read(inode), true);
655 inode->i_mtime = inode->i_ctime = current_time(inode);
656 f2fs_mark_inode_dirty_sync(inode, false);
660 int f2fs_getattr(const struct path *path, struct kstat *stat,
661 u32 request_mask, unsigned int query_flags)
663 struct inode *inode = d_inode(path->dentry);
664 struct f2fs_inode_info *fi = F2FS_I(inode);
667 flags = fi->i_flags & (FS_FL_USER_VISIBLE | FS_PROJINHERIT_FL);
668 if (flags & FS_APPEND_FL)
669 stat->attributes |= STATX_ATTR_APPEND;
670 if (flags & FS_COMPR_FL)
671 stat->attributes |= STATX_ATTR_COMPRESSED;
672 if (f2fs_encrypted_inode(inode))
673 stat->attributes |= STATX_ATTR_ENCRYPTED;
674 if (flags & FS_IMMUTABLE_FL)
675 stat->attributes |= STATX_ATTR_IMMUTABLE;
676 if (flags & FS_NODUMP_FL)
677 stat->attributes |= STATX_ATTR_NODUMP;
679 stat->attributes_mask |= (STATX_ATTR_APPEND |
680 STATX_ATTR_COMPRESSED |
681 STATX_ATTR_ENCRYPTED |
682 STATX_ATTR_IMMUTABLE |
685 generic_fillattr(inode, stat);
689 #ifdef CONFIG_F2FS_FS_POSIX_ACL
690 static void __setattr_copy(struct inode *inode, const struct iattr *attr)
692 unsigned int ia_valid = attr->ia_valid;
694 if (ia_valid & ATTR_UID)
695 inode->i_uid = attr->ia_uid;
696 if (ia_valid & ATTR_GID)
697 inode->i_gid = attr->ia_gid;
698 if (ia_valid & ATTR_ATIME)
699 inode->i_atime = timespec_trunc(attr->ia_atime,
700 inode->i_sb->s_time_gran);
701 if (ia_valid & ATTR_MTIME)
702 inode->i_mtime = timespec_trunc(attr->ia_mtime,
703 inode->i_sb->s_time_gran);
704 if (ia_valid & ATTR_CTIME)
705 inode->i_ctime = timespec_trunc(attr->ia_ctime,
706 inode->i_sb->s_time_gran);
707 if (ia_valid & ATTR_MODE) {
708 umode_t mode = attr->ia_mode;
710 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
712 set_acl_inode(inode, mode);
716 #define __setattr_copy setattr_copy
719 int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
721 struct inode *inode = d_inode(dentry);
723 bool size_changed = false;
725 err = setattr_prepare(dentry, attr);
729 if (is_quota_modification(inode, attr)) {
730 err = dquot_initialize(inode);
734 if ((attr->ia_valid & ATTR_UID &&
735 !uid_eq(attr->ia_uid, inode->i_uid)) ||
736 (attr->ia_valid & ATTR_GID &&
737 !gid_eq(attr->ia_gid, inode->i_gid))) {
738 err = dquot_transfer(inode, attr);
743 if (attr->ia_valid & ATTR_SIZE) {
744 if (f2fs_encrypted_inode(inode)) {
745 err = fscrypt_get_encryption_info(inode);
748 if (!fscrypt_has_encryption_key(inode))
752 if (attr->ia_size <= i_size_read(inode)) {
753 down_write(&F2FS_I(inode)->i_mmap_sem);
754 truncate_setsize(inode, attr->ia_size);
755 err = f2fs_truncate(inode);
756 up_write(&F2FS_I(inode)->i_mmap_sem);
761 * do not trim all blocks after i_size if target size is
762 * larger than i_size.
764 down_write(&F2FS_I(inode)->i_mmap_sem);
765 truncate_setsize(inode, attr->ia_size);
766 up_write(&F2FS_I(inode)->i_mmap_sem);
768 /* should convert inline inode here */
769 if (!f2fs_may_inline_data(inode)) {
770 err = f2fs_convert_inline_inode(inode);
774 inode->i_mtime = inode->i_ctime = current_time(inode);
780 __setattr_copy(inode, attr);
782 if (attr->ia_valid & ATTR_MODE) {
783 err = posix_acl_chmod(inode, get_inode_mode(inode));
784 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
785 inode->i_mode = F2FS_I(inode)->i_acl_mode;
786 clear_inode_flag(inode, FI_ACL_MODE);
790 /* file size may changed here */
791 f2fs_mark_inode_dirty_sync(inode, size_changed);
793 /* inode change will produce dirty node pages flushed by checkpoint */
794 f2fs_balance_fs(F2FS_I_SB(inode), true);
799 const struct inode_operations f2fs_file_inode_operations = {
800 .getattr = f2fs_getattr,
801 .setattr = f2fs_setattr,
802 .get_acl = f2fs_get_acl,
803 .set_acl = f2fs_set_acl,
804 #ifdef CONFIG_F2FS_FS_XATTR
805 .listxattr = f2fs_listxattr,
807 .fiemap = f2fs_fiemap,
810 static int fill_zero(struct inode *inode, pgoff_t index,
811 loff_t start, loff_t len)
813 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
819 f2fs_balance_fs(sbi, true);
822 page = get_new_data_page(inode, NULL, index, false);
826 return PTR_ERR(page);
828 f2fs_wait_on_page_writeback(page, DATA, true);
829 zero_user(page, start, len);
830 set_page_dirty(page);
831 f2fs_put_page(page, 1);
835 int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
839 while (pg_start < pg_end) {
840 struct dnode_of_data dn;
841 pgoff_t end_offset, count;
843 set_new_dnode(&dn, inode, NULL, NULL, 0);
844 err = get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
846 if (err == -ENOENT) {
853 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
854 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
856 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
858 truncate_data_blocks_range(&dn, count);
866 static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
868 pgoff_t pg_start, pg_end;
869 loff_t off_start, off_end;
872 ret = f2fs_convert_inline_inode(inode);
876 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
877 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
879 off_start = offset & (PAGE_SIZE - 1);
880 off_end = (offset + len) & (PAGE_SIZE - 1);
882 if (pg_start == pg_end) {
883 ret = fill_zero(inode, pg_start, off_start,
884 off_end - off_start);
889 ret = fill_zero(inode, pg_start++, off_start,
890 PAGE_SIZE - off_start);
895 ret = fill_zero(inode, pg_end, 0, off_end);
900 if (pg_start < pg_end) {
901 struct address_space *mapping = inode->i_mapping;
902 loff_t blk_start, blk_end;
903 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
905 f2fs_balance_fs(sbi, true);
907 blk_start = (loff_t)pg_start << PAGE_SHIFT;
908 blk_end = (loff_t)pg_end << PAGE_SHIFT;
909 down_write(&F2FS_I(inode)->i_mmap_sem);
910 truncate_inode_pages_range(mapping, blk_start,
914 ret = truncate_hole(inode, pg_start, pg_end);
916 up_write(&F2FS_I(inode)->i_mmap_sem);
923 static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
924 int *do_replace, pgoff_t off, pgoff_t len)
926 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
927 struct dnode_of_data dn;
931 set_new_dnode(&dn, inode, NULL, NULL, 0);
932 ret = get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
933 if (ret && ret != -ENOENT) {
935 } else if (ret == -ENOENT) {
936 if (dn.max_level == 0)
938 done = min((pgoff_t)ADDRS_PER_BLOCK - dn.ofs_in_node, len);
944 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
945 dn.ofs_in_node, len);
946 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
947 *blkaddr = datablock_addr(dn.inode,
948 dn.node_page, dn.ofs_in_node);
949 if (!is_checkpointed_data(sbi, *blkaddr)) {
951 if (test_opt(sbi, LFS)) {
956 /* do not invalidate this block address */
957 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
970 static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
971 int *do_replace, pgoff_t off, int len)
973 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
974 struct dnode_of_data dn;
977 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
978 if (*do_replace == 0)
981 set_new_dnode(&dn, inode, NULL, NULL, 0);
982 ret = get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
984 dec_valid_block_count(sbi, inode, 1);
985 invalidate_blocks(sbi, *blkaddr);
987 f2fs_update_data_blkaddr(&dn, *blkaddr);
994 static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
995 block_t *blkaddr, int *do_replace,
996 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
998 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1003 if (blkaddr[i] == NULL_ADDR && !full) {
1008 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1009 struct dnode_of_data dn;
1010 struct node_info ni;
1014 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
1015 ret = get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
1019 get_node_info(sbi, dn.nid, &ni);
1020 ilen = min((pgoff_t)
1021 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1022 dn.ofs_in_node, len - i);
1024 dn.data_blkaddr = datablock_addr(dn.inode,
1025 dn.node_page, dn.ofs_in_node);
1026 truncate_data_blocks_range(&dn, 1);
1028 if (do_replace[i]) {
1029 f2fs_i_blocks_write(src_inode,
1031 f2fs_i_blocks_write(dst_inode,
1033 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1034 blkaddr[i], ni.version, true, false);
1040 new_size = (dst + i) << PAGE_SHIFT;
1041 if (dst_inode->i_size < new_size)
1042 f2fs_i_size_write(dst_inode, new_size);
1043 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
1045 f2fs_put_dnode(&dn);
1047 struct page *psrc, *pdst;
1049 psrc = get_lock_data_page(src_inode, src + i, true);
1051 return PTR_ERR(psrc);
1052 pdst = get_new_data_page(dst_inode, NULL, dst + i,
1055 f2fs_put_page(psrc, 1);
1056 return PTR_ERR(pdst);
1058 f2fs_copy_page(psrc, pdst);
1059 set_page_dirty(pdst);
1060 f2fs_put_page(pdst, 1);
1061 f2fs_put_page(psrc, 1);
1063 ret = truncate_hole(src_inode, src + i, src + i + 1);
1072 static int __exchange_data_block(struct inode *src_inode,
1073 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
1074 pgoff_t len, bool full)
1076 block_t *src_blkaddr;
1082 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK, len);
1084 src_blkaddr = kvzalloc(sizeof(block_t) * olen, GFP_KERNEL);
1088 do_replace = kvzalloc(sizeof(int) * olen, GFP_KERNEL);
1090 kvfree(src_blkaddr);
1094 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1095 do_replace, src, olen);
1099 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1100 do_replace, src, dst, olen, full);
1108 kvfree(src_blkaddr);
1114 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, len);
1115 kvfree(src_blkaddr);
1120 static int f2fs_do_collapse(struct inode *inode, pgoff_t start, pgoff_t end)
1122 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1123 pgoff_t nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
1126 f2fs_balance_fs(sbi, true);
1129 f2fs_drop_extent_tree(inode);
1131 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1132 f2fs_unlock_op(sbi);
1136 static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1138 pgoff_t pg_start, pg_end;
1142 if (offset + len >= i_size_read(inode))
1145 /* collapse range should be aligned to block size of f2fs. */
1146 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1149 ret = f2fs_convert_inline_inode(inode);
1153 pg_start = offset >> PAGE_SHIFT;
1154 pg_end = (offset + len) >> PAGE_SHIFT;
1156 down_write(&F2FS_I(inode)->i_mmap_sem);
1157 /* write out all dirty pages from offset */
1158 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1162 truncate_pagecache(inode, offset);
1164 ret = f2fs_do_collapse(inode, pg_start, pg_end);
1168 /* write out all moved pages, if possible */
1169 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1170 truncate_pagecache(inode, offset);
1172 new_size = i_size_read(inode) - len;
1173 truncate_pagecache(inode, new_size);
1175 ret = truncate_blocks(inode, new_size, true);
1177 f2fs_i_size_write(inode, new_size);
1180 up_write(&F2FS_I(inode)->i_mmap_sem);
1184 static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1187 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1188 pgoff_t index = start;
1189 unsigned int ofs_in_node = dn->ofs_in_node;
1193 for (; index < end; index++, dn->ofs_in_node++) {
1194 if (datablock_addr(dn->inode, dn->node_page,
1195 dn->ofs_in_node) == NULL_ADDR)
1199 dn->ofs_in_node = ofs_in_node;
1200 ret = reserve_new_blocks(dn, count);
1204 dn->ofs_in_node = ofs_in_node;
1205 for (index = start; index < end; index++, dn->ofs_in_node++) {
1206 dn->data_blkaddr = datablock_addr(dn->inode,
1207 dn->node_page, dn->ofs_in_node);
1209 * reserve_new_blocks will not guarantee entire block
1212 if (dn->data_blkaddr == NULL_ADDR) {
1216 if (dn->data_blkaddr != NEW_ADDR) {
1217 invalidate_blocks(sbi, dn->data_blkaddr);
1218 dn->data_blkaddr = NEW_ADDR;
1219 set_data_blkaddr(dn);
1223 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1228 static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1231 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1232 struct address_space *mapping = inode->i_mapping;
1233 pgoff_t index, pg_start, pg_end;
1234 loff_t new_size = i_size_read(inode);
1235 loff_t off_start, off_end;
1238 ret = inode_newsize_ok(inode, (len + offset));
1242 ret = f2fs_convert_inline_inode(inode);
1246 down_write(&F2FS_I(inode)->i_mmap_sem);
1247 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1251 truncate_pagecache_range(inode, offset, offset + len - 1);
1253 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1254 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1256 off_start = offset & (PAGE_SIZE - 1);
1257 off_end = (offset + len) & (PAGE_SIZE - 1);
1259 if (pg_start == pg_end) {
1260 ret = fill_zero(inode, pg_start, off_start,
1261 off_end - off_start);
1265 new_size = max_t(loff_t, new_size, offset + len);
1268 ret = fill_zero(inode, pg_start++, off_start,
1269 PAGE_SIZE - off_start);
1273 new_size = max_t(loff_t, new_size,
1274 (loff_t)pg_start << PAGE_SHIFT);
1277 for (index = pg_start; index < pg_end;) {
1278 struct dnode_of_data dn;
1279 unsigned int end_offset;
1284 set_new_dnode(&dn, inode, NULL, NULL, 0);
1285 ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
1287 f2fs_unlock_op(sbi);
1291 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1292 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1294 ret = f2fs_do_zero_range(&dn, index, end);
1295 f2fs_put_dnode(&dn);
1296 f2fs_unlock_op(sbi);
1298 f2fs_balance_fs(sbi, dn.node_changed);
1304 new_size = max_t(loff_t, new_size,
1305 (loff_t)index << PAGE_SHIFT);
1309 ret = fill_zero(inode, pg_end, 0, off_end);
1313 new_size = max_t(loff_t, new_size, offset + len);
1318 if (!(mode & FALLOC_FL_KEEP_SIZE) && i_size_read(inode) < new_size)
1319 f2fs_i_size_write(inode, new_size);
1321 up_write(&F2FS_I(inode)->i_mmap_sem);
1326 static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1328 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1329 pgoff_t nr, pg_start, pg_end, delta, idx;
1333 new_size = i_size_read(inode) + len;
1334 ret = inode_newsize_ok(inode, new_size);
1338 if (offset >= i_size_read(inode))
1341 /* insert range should be aligned to block size of f2fs. */
1342 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1345 ret = f2fs_convert_inline_inode(inode);
1349 f2fs_balance_fs(sbi, true);
1351 down_write(&F2FS_I(inode)->i_mmap_sem);
1352 ret = truncate_blocks(inode, i_size_read(inode), true);
1356 /* write out all dirty pages from offset */
1357 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1361 truncate_pagecache(inode, offset);
1363 pg_start = offset >> PAGE_SHIFT;
1364 pg_end = (offset + len) >> PAGE_SHIFT;
1365 delta = pg_end - pg_start;
1366 idx = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
1368 while (!ret && idx > pg_start) {
1369 nr = idx - pg_start;
1375 f2fs_drop_extent_tree(inode);
1377 ret = __exchange_data_block(inode, inode, idx,
1378 idx + delta, nr, false);
1379 f2fs_unlock_op(sbi);
1382 /* write out all moved pages, if possible */
1383 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1384 truncate_pagecache(inode, offset);
1387 f2fs_i_size_write(inode, new_size);
1389 up_write(&F2FS_I(inode)->i_mmap_sem);
1393 static int expand_inode_data(struct inode *inode, loff_t offset,
1394 loff_t len, int mode)
1396 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1397 struct f2fs_map_blocks map = { .m_next_pgofs = NULL };
1399 loff_t new_size = i_size_read(inode);
1403 err = inode_newsize_ok(inode, (len + offset));
1407 err = f2fs_convert_inline_inode(inode);
1411 f2fs_balance_fs(sbi, true);
1413 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
1414 off_end = (offset + len) & (PAGE_SIZE - 1);
1416 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
1417 map.m_len = pg_end - map.m_lblk;
1421 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
1428 last_off = map.m_lblk + map.m_len - 1;
1430 /* update new size to the failed position */
1431 new_size = (last_off == pg_end) ? offset + len:
1432 (loff_t)(last_off + 1) << PAGE_SHIFT;
1434 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
1437 if (!(mode & FALLOC_FL_KEEP_SIZE) && i_size_read(inode) < new_size)
1438 f2fs_i_size_write(inode, new_size);
1443 static long f2fs_fallocate(struct file *file, int mode,
1444 loff_t offset, loff_t len)
1446 struct inode *inode = file_inode(file);
1449 /* f2fs only support ->fallocate for regular file */
1450 if (!S_ISREG(inode->i_mode))
1453 if (f2fs_encrypted_inode(inode) &&
1454 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
1457 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
1458 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1459 FALLOC_FL_INSERT_RANGE))
1464 if (mode & FALLOC_FL_PUNCH_HOLE) {
1465 if (offset >= inode->i_size)
1468 ret = punch_hole(inode, offset, len);
1469 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1470 ret = f2fs_collapse_range(inode, offset, len);
1471 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1472 ret = f2fs_zero_range(inode, offset, len, mode);
1473 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1474 ret = f2fs_insert_range(inode, offset, len);
1476 ret = expand_inode_data(inode, offset, len, mode);
1480 inode->i_mtime = inode->i_ctime = current_time(inode);
1481 f2fs_mark_inode_dirty_sync(inode, false);
1482 if (mode & FALLOC_FL_KEEP_SIZE)
1483 file_set_keep_isize(inode);
1484 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1488 inode_unlock(inode);
1490 trace_f2fs_fallocate(inode, mode, offset, len, ret);
1494 static int f2fs_release_file(struct inode *inode, struct file *filp)
1497 * f2fs_relase_file is called at every close calls. So we should
1498 * not drop any inmemory pages by close called by other process.
1500 if (!(filp->f_mode & FMODE_WRITE) ||
1501 atomic_read(&inode->i_writecount) != 1)
1504 /* some remained atomic pages should discarded */
1505 if (f2fs_is_atomic_file(inode))
1506 drop_inmem_pages(inode);
1507 if (f2fs_is_volatile_file(inode)) {
1508 clear_inode_flag(inode, FI_VOLATILE_FILE);
1509 stat_dec_volatile_write(inode);
1510 set_inode_flag(inode, FI_DROP_CACHE);
1511 filemap_fdatawrite(inode->i_mapping);
1512 clear_inode_flag(inode, FI_DROP_CACHE);
1517 static int f2fs_file_flush(struct file *file, fl_owner_t id)
1519 struct inode *inode = file_inode(file);
1522 * If the process doing a transaction is crashed, we should do
1523 * roll-back. Otherwise, other reader/write can see corrupted database
1524 * until all the writers close its file. Since this should be done
1525 * before dropping file lock, it needs to do in ->flush.
1527 if (f2fs_is_atomic_file(inode) &&
1528 F2FS_I(inode)->inmem_task == current)
1529 drop_inmem_pages(inode);
1533 static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
1535 struct inode *inode = file_inode(filp);
1536 struct f2fs_inode_info *fi = F2FS_I(inode);
1537 unsigned int flags = fi->i_flags &
1538 (FS_FL_USER_VISIBLE | FS_PROJINHERIT_FL);
1539 return put_user(flags, (int __user *)arg);
1542 static int __f2fs_ioc_setflags(struct inode *inode, unsigned int flags)
1544 struct f2fs_inode_info *fi = F2FS_I(inode);
1545 unsigned int oldflags;
1547 /* Is it quota file? Do not allow user to mess with it */
1548 if (IS_NOQUOTA(inode))
1551 flags = f2fs_mask_flags(inode->i_mode, flags);
1553 oldflags = fi->i_flags;
1555 if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL))
1556 if (!capable(CAP_LINUX_IMMUTABLE))
1559 flags = flags & (FS_FL_USER_MODIFIABLE | FS_PROJINHERIT_FL);
1560 flags |= oldflags & ~(FS_FL_USER_MODIFIABLE | FS_PROJINHERIT_FL);
1561 fi->i_flags = flags;
1563 if (fi->i_flags & FS_PROJINHERIT_FL)
1564 set_inode_flag(inode, FI_PROJ_INHERIT);
1566 clear_inode_flag(inode, FI_PROJ_INHERIT);
1568 inode->i_ctime = current_time(inode);
1569 f2fs_set_inode_flags(inode);
1570 f2fs_mark_inode_dirty_sync(inode, false);
1574 static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
1576 struct inode *inode = file_inode(filp);
1580 if (!inode_owner_or_capable(inode))
1583 if (get_user(flags, (int __user *)arg))
1586 ret = mnt_want_write_file(filp);
1592 ret = __f2fs_ioc_setflags(inode, flags);
1594 inode_unlock(inode);
1595 mnt_drop_write_file(filp);
1599 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1601 struct inode *inode = file_inode(filp);
1603 return put_user(inode->i_generation, (int __user *)arg);
1606 static int f2fs_ioc_start_atomic_write(struct file *filp)
1608 struct inode *inode = file_inode(filp);
1611 if (!inode_owner_or_capable(inode))
1614 if (!S_ISREG(inode->i_mode))
1617 ret = mnt_want_write_file(filp);
1623 if (f2fs_is_atomic_file(inode))
1626 ret = f2fs_convert_inline_inode(inode);
1630 set_inode_flag(inode, FI_ATOMIC_FILE);
1631 set_inode_flag(inode, FI_HOT_DATA);
1632 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1634 if (!get_dirty_pages(inode))
1637 f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
1638 "Unexpected flush for atomic writes: ino=%lu, npages=%u",
1639 inode->i_ino, get_dirty_pages(inode));
1640 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
1642 clear_inode_flag(inode, FI_ATOMIC_FILE);
1643 clear_inode_flag(inode, FI_HOT_DATA);
1648 F2FS_I(inode)->inmem_task = current;
1649 stat_inc_atomic_write(inode);
1650 stat_update_max_atomic_write(inode);
1652 inode_unlock(inode);
1653 mnt_drop_write_file(filp);
1657 static int f2fs_ioc_commit_atomic_write(struct file *filp)
1659 struct inode *inode = file_inode(filp);
1662 if (!inode_owner_or_capable(inode))
1665 ret = mnt_want_write_file(filp);
1671 if (f2fs_is_volatile_file(inode))
1674 if (f2fs_is_atomic_file(inode)) {
1675 ret = commit_inmem_pages(inode);
1679 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
1681 clear_inode_flag(inode, FI_ATOMIC_FILE);
1682 clear_inode_flag(inode, FI_HOT_DATA);
1683 stat_dec_atomic_write(inode);
1686 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
1689 inode_unlock(inode);
1690 mnt_drop_write_file(filp);
1694 static int f2fs_ioc_start_volatile_write(struct file *filp)
1696 struct inode *inode = file_inode(filp);
1699 if (!inode_owner_or_capable(inode))
1702 if (!S_ISREG(inode->i_mode))
1705 ret = mnt_want_write_file(filp);
1711 if (f2fs_is_volatile_file(inode))
1714 ret = f2fs_convert_inline_inode(inode);
1718 stat_inc_volatile_write(inode);
1719 stat_update_max_volatile_write(inode);
1721 set_inode_flag(inode, FI_VOLATILE_FILE);
1722 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1724 inode_unlock(inode);
1725 mnt_drop_write_file(filp);
1729 static int f2fs_ioc_release_volatile_write(struct file *filp)
1731 struct inode *inode = file_inode(filp);
1734 if (!inode_owner_or_capable(inode))
1737 ret = mnt_want_write_file(filp);
1743 if (!f2fs_is_volatile_file(inode))
1746 if (!f2fs_is_first_block_written(inode)) {
1747 ret = truncate_partial_data_page(inode, 0, true);
1751 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
1753 inode_unlock(inode);
1754 mnt_drop_write_file(filp);
1758 static int f2fs_ioc_abort_volatile_write(struct file *filp)
1760 struct inode *inode = file_inode(filp);
1763 if (!inode_owner_or_capable(inode))
1766 ret = mnt_want_write_file(filp);
1772 if (f2fs_is_atomic_file(inode))
1773 drop_inmem_pages(inode);
1774 if (f2fs_is_volatile_file(inode)) {
1775 clear_inode_flag(inode, FI_VOLATILE_FILE);
1776 stat_dec_volatile_write(inode);
1777 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
1780 inode_unlock(inode);
1782 mnt_drop_write_file(filp);
1783 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1787 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
1789 struct inode *inode = file_inode(filp);
1790 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1791 struct super_block *sb = sbi->sb;
1795 if (!capable(CAP_SYS_ADMIN))
1798 if (get_user(in, (__u32 __user *)arg))
1801 ret = mnt_want_write_file(filp);
1806 case F2FS_GOING_DOWN_FULLSYNC:
1807 sb = freeze_bdev(sb->s_bdev);
1808 if (sb && !IS_ERR(sb)) {
1809 f2fs_stop_checkpoint(sbi, false);
1810 thaw_bdev(sb->s_bdev, sb);
1813 case F2FS_GOING_DOWN_METASYNC:
1814 /* do checkpoint only */
1815 f2fs_sync_fs(sb, 1);
1816 f2fs_stop_checkpoint(sbi, false);
1818 case F2FS_GOING_DOWN_NOSYNC:
1819 f2fs_stop_checkpoint(sbi, false);
1821 case F2FS_GOING_DOWN_METAFLUSH:
1822 sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
1823 f2fs_stop_checkpoint(sbi, false);
1829 f2fs_update_time(sbi, REQ_TIME);
1831 mnt_drop_write_file(filp);
1835 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
1837 struct inode *inode = file_inode(filp);
1838 struct super_block *sb = inode->i_sb;
1839 struct request_queue *q = bdev_get_queue(sb->s_bdev);
1840 struct fstrim_range range;
1843 if (!capable(CAP_SYS_ADMIN))
1846 if (!blk_queue_discard(q))
1849 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
1853 ret = mnt_want_write_file(filp);
1857 range.minlen = max((unsigned int)range.minlen,
1858 q->limits.discard_granularity);
1859 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
1860 mnt_drop_write_file(filp);
1864 if (copy_to_user((struct fstrim_range __user *)arg, &range,
1867 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1871 static bool uuid_is_nonzero(__u8 u[16])
1875 for (i = 0; i < 16; i++)
1881 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
1883 struct inode *inode = file_inode(filp);
1885 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1887 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
1890 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
1892 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
1895 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
1897 struct inode *inode = file_inode(filp);
1898 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1901 if (!f2fs_sb_has_crypto(inode->i_sb))
1904 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
1907 err = mnt_want_write_file(filp);
1911 /* update superblock with uuid */
1912 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
1914 err = f2fs_commit_super(sbi, false);
1917 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
1918 mnt_drop_write_file(filp);
1921 mnt_drop_write_file(filp);
1923 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
1929 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
1931 struct inode *inode = file_inode(filp);
1932 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1936 if (!capable(CAP_SYS_ADMIN))
1939 if (get_user(sync, (__u32 __user *)arg))
1942 if (f2fs_readonly(sbi->sb))
1945 ret = mnt_want_write_file(filp);
1950 if (!mutex_trylock(&sbi->gc_mutex)) {
1955 mutex_lock(&sbi->gc_mutex);
1958 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
1960 mnt_drop_write_file(filp);
1964 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
1966 struct inode *inode = file_inode(filp);
1967 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1968 struct f2fs_gc_range range;
1972 if (!capable(CAP_SYS_ADMIN))
1975 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
1979 if (f2fs_readonly(sbi->sb))
1982 ret = mnt_want_write_file(filp);
1986 end = range.start + range.len;
1987 if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi))
1991 if (!mutex_trylock(&sbi->gc_mutex)) {
1996 mutex_lock(&sbi->gc_mutex);
1999 ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
2000 range.start += sbi->blocks_per_seg;
2001 if (range.start <= end)
2004 mnt_drop_write_file(filp);
2008 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
2010 struct inode *inode = file_inode(filp);
2011 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2014 if (!capable(CAP_SYS_ADMIN))
2017 if (f2fs_readonly(sbi->sb))
2020 ret = mnt_want_write_file(filp);
2024 ret = f2fs_sync_fs(sbi->sb, 1);
2026 mnt_drop_write_file(filp);
2030 static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2032 struct f2fs_defragment *range)
2034 struct inode *inode = file_inode(filp);
2035 struct f2fs_map_blocks map = { .m_next_pgofs = NULL };
2036 struct extent_info ei = {0,0,0};
2037 pgoff_t pg_start, pg_end;
2038 unsigned int blk_per_seg = sbi->blocks_per_seg;
2039 unsigned int total = 0, sec_num;
2040 block_t blk_end = 0;
2041 bool fragmented = false;
2044 /* if in-place-update policy is enabled, don't waste time here */
2045 if (need_inplace_update_policy(inode, NULL))
2048 pg_start = range->start >> PAGE_SHIFT;
2049 pg_end = (range->start + range->len) >> PAGE_SHIFT;
2051 f2fs_balance_fs(sbi, true);
2055 /* writeback all dirty pages in the range */
2056 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
2057 range->start + range->len - 1);
2062 * lookup mapping info in extent cache, skip defragmenting if physical
2063 * block addresses are continuous.
2065 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2066 if (ei.fofs + ei.len >= pg_end)
2070 map.m_lblk = pg_start;
2073 * lookup mapping info in dnode page cache, skip defragmenting if all
2074 * physical block addresses are continuous even if there are hole(s)
2075 * in logical blocks.
2077 while (map.m_lblk < pg_end) {
2078 map.m_len = pg_end - map.m_lblk;
2079 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2083 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2088 if (blk_end && blk_end != map.m_pblk) {
2092 blk_end = map.m_pblk + map.m_len;
2094 map.m_lblk += map.m_len;
2100 map.m_lblk = pg_start;
2101 map.m_len = pg_end - pg_start;
2103 sec_num = (map.m_len + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
2106 * make sure there are enough free section for LFS allocation, this can
2107 * avoid defragment running in SSR mode when free section are allocated
2110 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
2115 while (map.m_lblk < pg_end) {
2120 map.m_len = pg_end - map.m_lblk;
2121 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2125 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2130 set_inode_flag(inode, FI_DO_DEFRAG);
2133 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2136 page = get_lock_data_page(inode, idx, true);
2138 err = PTR_ERR(page);
2142 set_page_dirty(page);
2143 f2fs_put_page(page, 1);
2152 if (idx < pg_end && cnt < blk_per_seg)
2155 clear_inode_flag(inode, FI_DO_DEFRAG);
2157 err = filemap_fdatawrite(inode->i_mapping);
2162 clear_inode_flag(inode, FI_DO_DEFRAG);
2164 inode_unlock(inode);
2166 range->len = (u64)total << PAGE_SHIFT;
2170 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2172 struct inode *inode = file_inode(filp);
2173 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2174 struct f2fs_defragment range;
2177 if (!capable(CAP_SYS_ADMIN))
2180 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
2183 if (f2fs_readonly(sbi->sb))
2186 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
2190 /* verify alignment of offset & size */
2191 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2194 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
2195 sbi->max_file_blocks))
2198 err = mnt_want_write_file(filp);
2202 err = f2fs_defragment_range(sbi, filp, &range);
2203 mnt_drop_write_file(filp);
2205 f2fs_update_time(sbi, REQ_TIME);
2209 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2216 static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2217 struct file *file_out, loff_t pos_out, size_t len)
2219 struct inode *src = file_inode(file_in);
2220 struct inode *dst = file_inode(file_out);
2221 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2222 size_t olen = len, dst_max_i_size = 0;
2226 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2227 src->i_sb != dst->i_sb)
2230 if (unlikely(f2fs_readonly(src->i_sb)))
2233 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2236 if (f2fs_encrypted_inode(src) || f2fs_encrypted_inode(dst))
2240 if (pos_in == pos_out)
2242 if (pos_out > pos_in && pos_out < pos_in + len)
2248 if (!inode_trylock(dst)) {
2255 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2258 olen = len = src->i_size - pos_in;
2259 if (pos_in + len == src->i_size)
2260 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2266 dst_osize = dst->i_size;
2267 if (pos_out + olen > dst->i_size)
2268 dst_max_i_size = pos_out + olen;
2270 /* verify the end result is block aligned */
2271 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2272 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2273 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2276 ret = f2fs_convert_inline_inode(src);
2280 ret = f2fs_convert_inline_inode(dst);
2284 /* write out all dirty pages from offset */
2285 ret = filemap_write_and_wait_range(src->i_mapping,
2286 pos_in, pos_in + len);
2290 ret = filemap_write_and_wait_range(dst->i_mapping,
2291 pos_out, pos_out + len);
2295 f2fs_balance_fs(sbi, true);
2297 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2298 pos_out >> F2FS_BLKSIZE_BITS,
2299 len >> F2FS_BLKSIZE_BITS, false);
2303 f2fs_i_size_write(dst, dst_max_i_size);
2304 else if (dst_osize != dst->i_size)
2305 f2fs_i_size_write(dst, dst_osize);
2307 f2fs_unlock_op(sbi);
2316 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2318 struct f2fs_move_range range;
2322 if (!(filp->f_mode & FMODE_READ) ||
2323 !(filp->f_mode & FMODE_WRITE))
2326 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2330 dst = fdget(range.dst_fd);
2334 if (!(dst.file->f_mode & FMODE_WRITE)) {
2339 err = mnt_want_write_file(filp);
2343 err = f2fs_move_file_range(filp, range.pos_in, dst.file,
2344 range.pos_out, range.len);
2346 mnt_drop_write_file(filp);
2350 if (copy_to_user((struct f2fs_move_range __user *)arg,
2351 &range, sizeof(range)))
2358 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2360 struct inode *inode = file_inode(filp);
2361 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2362 struct sit_info *sm = SIT_I(sbi);
2363 unsigned int start_segno = 0, end_segno = 0;
2364 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2365 struct f2fs_flush_device range;
2368 if (!capable(CAP_SYS_ADMIN))
2371 if (f2fs_readonly(sbi->sb))
2374 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2378 if (sbi->s_ndevs <= 1 || sbi->s_ndevs - 1 <= range.dev_num ||
2379 sbi->segs_per_sec != 1) {
2380 f2fs_msg(sbi->sb, KERN_WARNING,
2381 "Can't flush %u in %d for segs_per_sec %u != 1\n",
2382 range.dev_num, sbi->s_ndevs,
2387 ret = mnt_want_write_file(filp);
2391 if (range.dev_num != 0)
2392 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2393 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2395 start_segno = sm->last_victim[FLUSH_DEVICE];
2396 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2397 start_segno = dev_start_segno;
2398 end_segno = min(start_segno + range.segments, dev_end_segno);
2400 while (start_segno < end_segno) {
2401 if (!mutex_trylock(&sbi->gc_mutex)) {
2405 sm->last_victim[GC_CB] = end_segno + 1;
2406 sm->last_victim[GC_GREEDY] = end_segno + 1;
2407 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2408 ret = f2fs_gc(sbi, true, true, start_segno);
2416 mnt_drop_write_file(filp);
2420 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2422 struct inode *inode = file_inode(filp);
2423 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2425 /* Must validate to set it with SQLite behavior in Android. */
2426 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2428 return put_user(sb_feature, (u32 __user *)arg);
2432 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2434 struct inode *inode = file_inode(filp);
2435 struct f2fs_inode_info *fi = F2FS_I(inode);
2436 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2437 struct super_block *sb = sbi->sb;
2438 struct dquot *transfer_to[MAXQUOTAS] = {};
2443 if (!f2fs_sb_has_project_quota(sb)) {
2444 if (projid != F2FS_DEF_PROJID)
2450 if (!f2fs_has_extra_attr(inode))
2453 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
2455 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
2458 err = mnt_want_write_file(filp);
2465 /* Is it quota file? Do not allow user to mess with it */
2466 if (IS_NOQUOTA(inode))
2469 ipage = get_node_page(sbi, inode->i_ino);
2470 if (IS_ERR(ipage)) {
2471 err = PTR_ERR(ipage);
2475 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
2478 f2fs_put_page(ipage, 1);
2481 f2fs_put_page(ipage, 1);
2483 dquot_initialize(inode);
2485 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2486 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2487 err = __dquot_transfer(inode, transfer_to);
2488 dqput(transfer_to[PRJQUOTA]);
2493 F2FS_I(inode)->i_projid = kprojid;
2494 inode->i_ctime = current_time(inode);
2496 f2fs_mark_inode_dirty_sync(inode, true);
2498 inode_unlock(inode);
2499 mnt_drop_write_file(filp);
2503 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2505 if (projid != F2FS_DEF_PROJID)
2511 /* Transfer internal flags to xflags */
2512 static inline __u32 f2fs_iflags_to_xflags(unsigned long iflags)
2516 if (iflags & FS_SYNC_FL)
2517 xflags |= FS_XFLAG_SYNC;
2518 if (iflags & FS_IMMUTABLE_FL)
2519 xflags |= FS_XFLAG_IMMUTABLE;
2520 if (iflags & FS_APPEND_FL)
2521 xflags |= FS_XFLAG_APPEND;
2522 if (iflags & FS_NODUMP_FL)
2523 xflags |= FS_XFLAG_NODUMP;
2524 if (iflags & FS_NOATIME_FL)
2525 xflags |= FS_XFLAG_NOATIME;
2526 if (iflags & FS_PROJINHERIT_FL)
2527 xflags |= FS_XFLAG_PROJINHERIT;
2531 #define F2FS_SUPPORTED_FS_XFLAGS (FS_XFLAG_SYNC | FS_XFLAG_IMMUTABLE | \
2532 FS_XFLAG_APPEND | FS_XFLAG_NODUMP | \
2533 FS_XFLAG_NOATIME | FS_XFLAG_PROJINHERIT)
2535 /* Flags we can manipulate with through EXT4_IOC_FSSETXATTR */
2536 #define F2FS_FL_XFLAG_VISIBLE (FS_SYNC_FL | \
2543 /* Transfer xflags flags to internal */
2544 static inline unsigned long f2fs_xflags_to_iflags(__u32 xflags)
2546 unsigned long iflags = 0;
2548 if (xflags & FS_XFLAG_SYNC)
2549 iflags |= FS_SYNC_FL;
2550 if (xflags & FS_XFLAG_IMMUTABLE)
2551 iflags |= FS_IMMUTABLE_FL;
2552 if (xflags & FS_XFLAG_APPEND)
2553 iflags |= FS_APPEND_FL;
2554 if (xflags & FS_XFLAG_NODUMP)
2555 iflags |= FS_NODUMP_FL;
2556 if (xflags & FS_XFLAG_NOATIME)
2557 iflags |= FS_NOATIME_FL;
2558 if (xflags & FS_XFLAG_PROJINHERIT)
2559 iflags |= FS_PROJINHERIT_FL;
2564 static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
2566 struct inode *inode = file_inode(filp);
2567 struct f2fs_inode_info *fi = F2FS_I(inode);
2570 memset(&fa, 0, sizeof(struct fsxattr));
2571 fa.fsx_xflags = f2fs_iflags_to_xflags(fi->i_flags &
2572 (FS_FL_USER_VISIBLE | FS_PROJINHERIT_FL));
2574 if (f2fs_sb_has_project_quota(inode->i_sb))
2575 fa.fsx_projid = (__u32)from_kprojid(&init_user_ns,
2578 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
2583 static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
2585 struct inode *inode = file_inode(filp);
2586 struct f2fs_inode_info *fi = F2FS_I(inode);
2591 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
2594 /* Make sure caller has proper permission */
2595 if (!inode_owner_or_capable(inode))
2598 if (fa.fsx_xflags & ~F2FS_SUPPORTED_FS_XFLAGS)
2601 flags = f2fs_xflags_to_iflags(fa.fsx_xflags);
2602 if (f2fs_mask_flags(inode->i_mode, flags) != flags)
2605 err = mnt_want_write_file(filp);
2610 flags = (fi->i_flags & ~F2FS_FL_XFLAG_VISIBLE) |
2611 (flags & F2FS_FL_XFLAG_VISIBLE);
2612 err = __f2fs_ioc_setflags(inode, flags);
2613 inode_unlock(inode);
2614 mnt_drop_write_file(filp);
2618 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
2625 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
2628 case F2FS_IOC_GETFLAGS:
2629 return f2fs_ioc_getflags(filp, arg);
2630 case F2FS_IOC_SETFLAGS:
2631 return f2fs_ioc_setflags(filp, arg);
2632 case F2FS_IOC_GETVERSION:
2633 return f2fs_ioc_getversion(filp, arg);
2634 case F2FS_IOC_START_ATOMIC_WRITE:
2635 return f2fs_ioc_start_atomic_write(filp);
2636 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
2637 return f2fs_ioc_commit_atomic_write(filp);
2638 case F2FS_IOC_START_VOLATILE_WRITE:
2639 return f2fs_ioc_start_volatile_write(filp);
2640 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
2641 return f2fs_ioc_release_volatile_write(filp);
2642 case F2FS_IOC_ABORT_VOLATILE_WRITE:
2643 return f2fs_ioc_abort_volatile_write(filp);
2644 case F2FS_IOC_SHUTDOWN:
2645 return f2fs_ioc_shutdown(filp, arg);
2647 return f2fs_ioc_fitrim(filp, arg);
2648 case F2FS_IOC_SET_ENCRYPTION_POLICY:
2649 return f2fs_ioc_set_encryption_policy(filp, arg);
2650 case F2FS_IOC_GET_ENCRYPTION_POLICY:
2651 return f2fs_ioc_get_encryption_policy(filp, arg);
2652 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
2653 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
2654 case F2FS_IOC_GARBAGE_COLLECT:
2655 return f2fs_ioc_gc(filp, arg);
2656 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
2657 return f2fs_ioc_gc_range(filp, arg);
2658 case F2FS_IOC_WRITE_CHECKPOINT:
2659 return f2fs_ioc_write_checkpoint(filp, arg);
2660 case F2FS_IOC_DEFRAGMENT:
2661 return f2fs_ioc_defragment(filp, arg);
2662 case F2FS_IOC_MOVE_RANGE:
2663 return f2fs_ioc_move_range(filp, arg);
2664 case F2FS_IOC_FLUSH_DEVICE:
2665 return f2fs_ioc_flush_device(filp, arg);
2666 case F2FS_IOC_GET_FEATURES:
2667 return f2fs_ioc_get_features(filp, arg);
2668 case F2FS_IOC_FSGETXATTR:
2669 return f2fs_ioc_fsgetxattr(filp, arg);
2670 case F2FS_IOC_FSSETXATTR:
2671 return f2fs_ioc_fssetxattr(filp, arg);
2677 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
2679 struct file *file = iocb->ki_filp;
2680 struct inode *inode = file_inode(file);
2681 struct blk_plug plug;
2685 ret = generic_write_checks(iocb, from);
2689 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
2690 set_inode_flag(inode, FI_NO_PREALLOC);
2692 err = f2fs_preallocate_blocks(iocb, from);
2694 inode_unlock(inode);
2697 blk_start_plug(&plug);
2698 ret = __generic_file_write_iter(iocb, from);
2699 blk_finish_plug(&plug);
2700 clear_inode_flag(inode, FI_NO_PREALLOC);
2703 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
2705 inode_unlock(inode);
2708 ret = generic_write_sync(iocb, ret);
2712 #ifdef CONFIG_COMPAT
2713 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
2716 case F2FS_IOC32_GETFLAGS:
2717 cmd = F2FS_IOC_GETFLAGS;
2719 case F2FS_IOC32_SETFLAGS:
2720 cmd = F2FS_IOC_SETFLAGS;
2722 case F2FS_IOC32_GETVERSION:
2723 cmd = F2FS_IOC_GETVERSION;
2725 case F2FS_IOC_START_ATOMIC_WRITE:
2726 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
2727 case F2FS_IOC_START_VOLATILE_WRITE:
2728 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
2729 case F2FS_IOC_ABORT_VOLATILE_WRITE:
2730 case F2FS_IOC_SHUTDOWN:
2731 case F2FS_IOC_SET_ENCRYPTION_POLICY:
2732 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
2733 case F2FS_IOC_GET_ENCRYPTION_POLICY:
2734 case F2FS_IOC_GARBAGE_COLLECT:
2735 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
2736 case F2FS_IOC_WRITE_CHECKPOINT:
2737 case F2FS_IOC_DEFRAGMENT:
2738 case F2FS_IOC_MOVE_RANGE:
2739 case F2FS_IOC_FLUSH_DEVICE:
2740 case F2FS_IOC_GET_FEATURES:
2741 case F2FS_IOC_FSGETXATTR:
2742 case F2FS_IOC_FSSETXATTR:
2745 return -ENOIOCTLCMD;
2747 return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
2751 const struct file_operations f2fs_file_operations = {
2752 .llseek = f2fs_llseek,
2753 .read_iter = generic_file_read_iter,
2754 .write_iter = f2fs_file_write_iter,
2755 .open = f2fs_file_open,
2756 .release = f2fs_release_file,
2757 .mmap = f2fs_file_mmap,
2758 .flush = f2fs_file_flush,
2759 .fsync = f2fs_sync_file,
2760 .fallocate = f2fs_fallocate,
2761 .unlocked_ioctl = f2fs_ioctl,
2762 #ifdef CONFIG_COMPAT
2763 .compat_ioctl = f2fs_compat_ioctl,
2765 .splice_read = generic_file_splice_read,
2766 .splice_write = iter_file_splice_write,