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| author | Jaegeuk Kim | 2016-05-21 07:50:29 +0200 |
|---|---|---|
| committer | Jaegeuk Kim | 2016-06-03 03:05:17 +0200 |
| commit | b93f7712868648c0529eed6b568cea1493d3d9f9 (patch) | |
| tree | c0ac3da3b8f764e13f19f38899ab36319b59d292 /fs/f2fs/f2fs.h | |
| parent | f2fs: set flush_merge by default (diff) | |
| download | kernel-qcow2-linux-b93f7712868648c0529eed6b568cea1493d3d9f9.tar.gz kernel-qcow2-linux-b93f7712868648c0529eed6b568cea1493d3d9f9.tar.xz kernel-qcow2-linux-b93f7712868648c0529eed6b568cea1493d3d9f9.zip | |
f2fs: remove writepages lock
This patch removes writepages lock.
We can improve multi-threading performance.
tiobench, 32 threads, 4KB write per fsync on SSD
Before: 25.88 MB/s
After: 28.03 MB/s
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f02a3572fff3..4365108d40b3 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -770,7 +770,6 @@ struct f2fs_sb_info { struct mutex cp_mutex; /* checkpoint procedure lock */ struct rw_semaphore cp_rwsem; /* blocking FS operations */ struct rw_semaphore node_write; /* locking node writes */ - struct mutex writepages; /* mutex for writepages() */ wait_queue_head_t cp_wait; unsigned long last_time[MAX_TIME]; /* to store time in jiffies */ long interval_time[MAX_TIME]; /* to store thresholds */ |