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| author | Chao Yu <yuchao0@huawei.com> | 2018-07-25 14:16:21 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-08-01 21:52:36 +0300 |
| commit | fd8c8caf7e7c8261a92ce0f7f2cd0adb8afd9e0d (patch) | |
| tree | f538e2fbc1c2f2ff34e239f0b9b46d8f7103dbcd /fs/f2fs/node.h | |
| parent | ad6672bbc527727dc8968e8d92687f55ae928ce5 (diff) | |
| download | linux-fd8c8caf7e7c8261a92ce0f7f2cd0adb8afd9e0d.tar.xz | |
f2fs: let checkpoint flush dnode page of regular
Fsyncer will wait on all dnode pages of regular writeback before flushing,
if there are async dnode pages blocked by IO scheduler, it may decrease
fsync's performance.
In this patch, we choose to let f2fs_balance_fs_bg() to trigger checkpoint
to flush these dnode pages of regular, so async IO of dnode page can be
elimitnated, making fsyncer only need to wait for sync IO.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.h')
| -rw-r--r-- | fs/f2fs/node.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h index 8f34bdffde93..0f4db7a61254 100644 --- a/fs/f2fs/node.h +++ b/fs/f2fs/node.h @@ -135,6 +135,11 @@ static inline bool excess_cached_nats(struct f2fs_sb_info *sbi) return NM_I(sbi)->nat_cnt >= DEF_NAT_CACHE_THRESHOLD; } +static inline bool excess_dirty_nodes(struct f2fs_sb_info *sbi) +{ + return get_pages(sbi, F2FS_DIRTY_NODES) >= sbi->blocks_per_seg * 8; +} + enum mem_type { FREE_NIDS, /* indicates the free nid list */ NAT_ENTRIES, /* indicates the cached nat entry */ |