locks: consolidate "nolease" routines
GFS2 and NFS have setlease routines that always just return -EINVAL.
Turn that into a generic routine that can live in fs/libfs.c.
Cc: <linux-nfs@vger.kernel.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: <cluster-devel@redhat.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 26b3f95..2c02478 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -913,26 +913,6 @@
#ifdef CONFIG_GFS2_FS_LOCKING_DLM
/**
- * gfs2_setlease - acquire/release a file lease
- * @file: the file pointer
- * @arg: lease type
- * @fl: file lock
- *
- * We don't currently have a way to enforce a lease across the whole
- * cluster; until we do, disable leases (by just returning -EINVAL),
- * unless the administrator has requested purely local locking.
- *
- * Locking: called under i_lock
- *
- * Returns: errno
- */
-
-static int gfs2_setlease(struct file *file, long arg, struct file_lock **fl)
-{
- return -EINVAL;
-}
-
-/**
* gfs2_lock - acquire/release a posix lock on a file
* @file: the file pointer
* @cmd: either modify or retrieve lock state, possibly wait
@@ -1069,7 +1049,7 @@
.flock = gfs2_flock,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
- .setlease = gfs2_setlease,
+ .setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
};