NFS: File unlock needs to be a metadata synchronisation point

File unlock needs to update both data and metadata on the NFS server
in order to act as a synchronisation point for other clients.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent 4d346bea

fs/nfs/file.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -780,7 +780,7 @@ do_unlk(struct file filp, int cmd, struct file_lock fl, int is_local)
		* Flush all pending writes before doing anything
		* with locks..
		*/
		nfs_sync_mapping(filp->f_mapping);
		vfs_fsync(filp, 0);

		l_ctx = nfs_get_lock_context(nfs_file_open_context(filp));
		if (!IS_ERR(l_ctx)) {