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 269645e..ff018a4 100644 (file)
--- 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);