diff options
| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-11-19 12:47:22 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-12-23 10:18:01 +0900 |
| commit | 1ff7bd3bb5f7f57bc7418ee6ed12f3ae217e4e9c (patch) | |
| tree | 13501b9baf93ba8ba9f35355fc8b37a6c2da30b8 /fs/f2fs/f2fs.h | |
| parent | c11abd1a8075e428ecf5303359513b48193b29cd (diff) | |
f2fs: introduce a bio array for per-page write bios
The f2fs has three bio types, NODE, DATA, and META, and manages some data
structures per each bio types.
The codes are a little bit messy, thus, this patch introduces a bio array
which groups individual data structures as follows.
struct f2fs_bio_info {
struct bio *bio; /* bios to merge */
sector_t last_block_in_bio; /* last block number */
struct mutex io_mutex; /* mutex for bio */
};
struct f2fs_sb_info {
...
struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */
...
};
The code changes from this new data structure are trivial.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e9038bbeee9..05f8fe1399a 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -361,6 +361,12 @@ enum page_type { META_FLUSH, }; +struct f2fs_bio_info { + struct bio *bio; /* bios to merge */ + sector_t last_block_in_bio; /* last block number */ + struct mutex io_mutex; /* mutex for bio */ +}; + struct f2fs_sb_info { struct super_block *sb; /* pointer to VFS super block */ struct proc_dir_entry *s_proc; /* proc entry */ @@ -374,9 +380,9 @@ struct f2fs_sb_info { /* for segment-related operations */ struct f2fs_sm_info *sm_info; /* segment manager */ - struct bio *bio[NR_PAGE_TYPE]; /* bios to merge */ - sector_t last_block_in_bio[NR_PAGE_TYPE]; /* last block number */ - struct mutex write_mutex[NR_PAGE_TYPE]; /* mutex for writing IOs */ + + /* for bio operations */ + struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ /* for checkpoint */ struct f2fs_checkpoint *ckpt; /* raw checkpoint pointer */ |