diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-05-10 11:18:25 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-05-23 21:05:39 -0700 |
| commit | a912b54d3aaa011266dc266e3694f782f27233cf (patch) | |
| tree | a79d1016b655cb27cab2889365575a2f3cd53c85 /fs/f2fs/f2fs.h | |
| parent | 81377bd62837c8113b1c49c5dfa6b1af8f9ee5c2 (diff) | |
f2fs: split bio cache
Split DATA/NODE type bio cache according to different temperature,
so write IOs with the same temperature can be merged in corresponding
bio cache as much as possible, otherwise, different temperature write
IOs submitting into one bio cache will always cause split of bio.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 58697bd588fa..c6643783adff 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -792,9 +792,17 @@ enum page_type { OPU, }; +enum temp_type { + HOT = 0, /* must be zero for meta bio */ + WARM, + COLD, + NR_TEMP_TYPE, +}; + struct f2fs_io_info { struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */ enum page_type type; /* contains DATA/NODE/META/META_FLUSH */ + enum temp_type temp; /* contains HOT/WARM/COLD */ int op; /* contains REQ_OP_ */ int op_flags; /* req_flag_bits */ block_t new_blkaddr; /* new block address to be written */ @@ -879,7 +887,7 @@ struct f2fs_sb_info { struct f2fs_sm_info *sm_info; /* segment manager */ /* for bio operations */ - struct f2fs_bio_info write_io[NR_PAGE_TYPE]; /* for write bios */ + struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */ struct mutex wio_mutex[NODE + 1]; /* bio ordering for NODE/DATA */ int write_io_size_bits; /* Write IO size bits */ mempool_t *write_io_dummy; /* Dummy pages */ |