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| author | Chao Yu <chao2.yu@samsung.com> | 2014-12-08 14:56:19 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-12-08 14:19:07 -0800 |
| commit | 13da549460d549aec78a943e589f4ffc3fdc716c (patch) | |
| tree | d8dbfe7096ce7895db2ead3f9ca030fd599ea086 | |
| parent | 03e14d522eb1fdf9c0ce37085cb56749342a842c (diff) | |
| download | blackbird-op-linux-13da549460d549aec78a943e589f4ffc3fdc716c.tar.gz blackbird-op-linux-13da549460d549aec78a943e589f4ffc3fdc716c.zip | |
f2fs: fix to enable readahead for SSA/CP blocks
1.We use zero as upper boundary value for ra SSA/CP blocks, we will skip
readahead as verification failure with max number, it causes low performance.
2.Low boundary value is not accurate for SSA/CP/POR region verification, so
these values need to be redefined.
This patch fixes above issues.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
| -rw-r--r-- | fs/f2fs/checkpoint.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 6a81b73add06..f3ebfb5a8431 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -95,8 +95,9 @@ static inline block_t get_max_meta_blks(struct f2fs_sb_info *sbi, int type) case META_SIT: return SIT_BLK_CNT(sbi); case META_SSA: + return MAIN_BLKADDR(sbi); case META_CP: - return 0; + return SM_I(sbi)->sit_info->sit_base_addr; case META_POR: return MAX_BLKADDR(sbi); default: @@ -141,11 +142,23 @@ int ra_meta_pages(struct f2fs_sb_info *sbi, block_t start, int nrpages, int type prev_blk_addr = blk_addr; break; case META_SSA: + if (unlikely(blkno >= max_blks)) + goto out; + if (unlikely(blkno < SM_I(sbi)->ssa_blkaddr)) + goto out; + blk_addr = blkno; + break; case META_CP: + if (unlikely(blkno >= max_blks)) + goto out; + if (unlikely(blkno < __start_cp_addr(sbi))) + goto out; + blk_addr = blkno; + break; case META_POR: if (unlikely(blkno >= max_blks)) goto out; - if (unlikely(blkno < SEG0_BLKADDR(sbi))) + if (unlikely(blkno < MAIN_BLKADDR(sbi))) goto out; blk_addr = blkno; break; |
