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| author | Chao Yu <chao2.yu@samsung.com> | 2015-03-19 14:27:51 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-04-11 01:08:51 +0300 |
| commit | 0bdee482509fe8c3cf0e66231ed37b8e70954093 (patch) | |
| tree | 2477ba4cbcefcbf2fce8e860e1d7e70c6aafa524 /fs/f2fs/f2fs.h | |
| parent | 028a41e89383e1208dff1afe3e260b8cb6d3431c (diff) | |
| download | linux-0bdee482509fe8c3cf0e66231ed37b8e70954093.tar.xz | |
f2fs: preserve extent info for extent cache
This patch tries to preserve last extent info in extent tree cache into on-disk
inode, so this can help us to reuse the last extent info next time for
performance.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 431b4af693e5..0be198339c3b 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -371,6 +371,13 @@ static inline void set_extent_info(struct extent_info *ei, unsigned int fofs, ei->len = len; } +static inline bool __is_extent_same(struct extent_info *ei1, + struct extent_info *ei2) +{ + return (ei1->fofs == ei2->fofs && ei1->blk == ei2->blk && + ei1->len == ei2->len); +} + static inline bool __is_extent_mergeable(struct extent_info *back, struct extent_info *front) { @@ -1598,6 +1605,7 @@ void f2fs_shrink_extent_tree(struct f2fs_sb_info *, int); void f2fs_destroy_extent_tree(struct inode *); void f2fs_init_extent_cache(struct inode *, struct f2fs_extent *); void f2fs_update_extent_cache(struct dnode_of_data *); +void f2fs_preserve_extent_tree(struct inode *); struct page *find_data_page(struct inode *, pgoff_t, bool); struct page *get_lock_data_page(struct inode *, pgoff_t); struct page *get_new_data_page(struct inode *, struct page *, pgoff_t, bool); |