f2fs: avoid mark_inode_dirty

Let's check inode's dirtiness before calling mark_inode_dirty.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/xattr.c

@@ -106,7 +106,7 @@ static int f2fs_xattr_advise_set(const struct xattr_handler *handler,
 		return -EINVAL;
 
 	F2FS_I(inode)->i_advise |= *(char *)value;
-	mark_inode_dirty_sync(inode);
+	f2fs_mark_inode_dirty_sync(inode);
 	return 0;
 }
 
@@ -547,7 +547,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 	if (index == F2FS_XATTR_INDEX_ENCRYPTION &&
 			!strcmp(name, F2FS_XATTR_NAME_ENCRYPTION_CONTEXT))
 		f2fs_set_encrypted_inode(inode);
-	mark_inode_dirty_sync(inode);
+	f2fs_mark_inode_dirty_sync(inode);
 exit:
 	kzfree(base_addr);
 	return error;