From: Yunlei He <heyunlei@huawei.com>
Date: Thu, 23 Feb 2017 12:31:20 +0000 (+0800)
Subject: f2fs: no need lock_op in f2fs_write_inline_data
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=dd7b2333e6cd31584682382fcf0a1c1e5140b936;p=openwrt%2Fstaging%2Fblogic.git

f2fs: no need lock_op in f2fs_write_inline_data

Similar as f2fs_write_inode, f2fs_write_inline_data just
mark inode page dirty, so it's no need to write inline data
under read lock of cp_rwsem.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 80f9863dc4b0..9e51c5e40ce1 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1414,9 +1414,12 @@ write:
 		goto redirty_out;
 
 	err = -EAGAIN;
-	f2fs_lock_op(sbi);
-	if (f2fs_has_inline_data(inode))
+	if (f2fs_has_inline_data(inode)) {
 		err = f2fs_write_inline_data(inode, page);
+		if (!err)
+			goto out;
+	}
+	f2fs_lock_op(sbi);
 	if (err == -EAGAIN)
 		err = do_write_data_page(&fio);
 	if (F2FS_I(inode)->last_disk_size < psize)