Commit 25c13551 authored by Jaegeuk Kim's avatar Jaegeuk Kim

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: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent b483fadf
...@@ -1402,7 +1402,7 @@ static int f2fs_write_data_pages(struct address_space *mapping, ...@@ -1402,7 +1402,7 @@ static int f2fs_write_data_pages(struct address_space *mapping,
diff = nr_pages_to_write(sbi, DATA, wbc); 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); mutex_lock(&sbi->writepages);
locked = true; locked = true;
} }
......
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