diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-01-20 23:46:05 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:51 +0200 |
| commit | c7e5f5f766e026b9a7cada77526b837b28b432ec (patch) | |
| tree | 60f9dbaed8d837745e88c744755748493ade0163 /fs/f2fs/data.c | |
| parent | 6ff6294ccbd3ff2d94196b26a458e36ac7300a82 (diff) | |
| download | android_kernel_m2note-c7e5f5f766e026b9a7cada77526b837b28b432ec.tar.gz | |
f2fs: use writepages->lock for WB_SYNC_ALL
If there are many writepages calls by multiple threads in background, we don't
need to serialize to merge all the bios, since it's background.
In such the case, it'd better to run writepages concurrently.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/data.c')
| -rw-r--r-- | fs/f2fs/data.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index abcb46152..305617b4c 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1403,7 +1403,7 @@ static int f2fs_write_data_pages(struct address_space *mapping, diff = nr_pages_to_write(sbi, DATA, wbc); - if (!S_ISDIR(inode->i_mode)) { + if (!S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_ALL) { mutex_lock(&sbi->writepages); locked = true; } |