From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Sat, 16 Mar 2013 02:13:04 +0000 (+0900)
Subject: f2fs: fix to call WRITE_FLUSH at the end of fsync
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ae51fb31b8c3eb0cedc223782832be393e53623b;p=openwrt%2Fstaging%2Fblogic.git

f2fs: fix to call WRITE_FLUSH at the end of fsync

The fsync call should be ended after flushing the in-device caches.

Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 269645e23519..ff018a42e435 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -13,6 +13,7 @@
 #include <linux/stat.h>
 #include <linux/buffer_head.h>
 #include <linux/writeback.h>
+#include <linux/blkdev.h>
 #include <linux/falloc.h>
 #include <linux/types.h>
 #include <linux/compat.h>
@@ -178,6 +179,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 		}
 		filemap_fdatawait_range(sbi->node_inode->i_mapping,
 							0, LONG_MAX);
+		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
 	}
 out:
 	mutex_unlock(&inode->i_mutex);