diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-07 12:28:41 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-10-12 13:38:02 -0700 |
| commit | 6e2c64ad7cebf8740c5e1241de374c6b6ea80f81 (patch) | |
| tree | c1b4ceed96d58f999d2d5c2725bd0429d876756a /fs/f2fs/f2fs.h | |
| parent | a125702326d9c3b753fe9c9b9727d3b3dd1cba4a (diff) | |
f2fs: fix SSA updates resulting in corruption
The f2fs_collapse_range and f2fs_insert_range changes the block addresses
directly. But that can cause uncovered SSA updates.
In that case, we need to give up to change the block addresses and do buffered
writes to keep filesystem consistency.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f05ae22558e2..6f2310ca3910 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1233,6 +1233,16 @@ static inline unsigned int valid_inode_count(struct f2fs_sb_info *sbi) return sbi->total_valid_inode_count; } +static inline void f2fs_copy_page(struct page *src, struct page *dst) +{ + char *src_kaddr = kmap(src); + char *dst_kaddr = kmap(dst); + + memcpy(dst_kaddr, src_kaddr, PAGE_SIZE); + kunmap(dst); + kunmap(src); +} + static inline void f2fs_put_page(struct page *page, int unlock) { if (!page) @@ -1754,6 +1764,7 @@ int f2fs_issue_flush(struct f2fs_sb_info *); int create_flush_cmd_control(struct f2fs_sb_info *); void destroy_flush_cmd_control(struct f2fs_sb_info *); void invalidate_blocks(struct f2fs_sb_info *, block_t); +bool is_checkpointed_data(struct f2fs_sb_info *, block_t); void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t); void clear_prefree_segments(struct f2fs_sb_info *, struct cp_control *); void release_discard_addrs(struct f2fs_sb_info *); |