diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-04-14 01:14:38 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-04-26 23:24:30 +0200 |
| commit | eca76e783cf5970db36edfda7e66487d897ea222 (patch) | |
| tree | 810c8bae2e9f392b20898131b21848532c143425 /fs | |
| parent | f2fs: flush dirty pages before starting atomic writes (diff) | |
| download | linux-eca76e783cf5970db36edfda7e66487d897ea222.tar.xz linux-eca76e783cf5970db36edfda7e66487d897ea222.zip | |
f2fs: avoid needless lock for node pages when fsyncing a file
When fsync is called, sync_node_pages finds a proper direct node pages to flush.
But, it locks unrelated direct node pages together unnecessarily.
Acked-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/f2fs/node.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 095fc2c96e16..cccee5006cdd 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1272,10 +1272,14 @@ next_step: * we should not skip writing node pages. */ lock_node: - if (ino && ino_of_node(page) == ino) - lock_page(page); - else if (!trylock_page(page)) + if (ino) { + if (ino_of_node(page) == ino) + lock_page(page); + else + continue; + } else if (!trylock_page(page)) { continue; + } if (unlikely(page->mapping != NODE_MAPPING(sbi))) { continue_unlock: |