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>

3 files changed, 2 insertions, 14 deletions

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 524dd80d1898..8c4048ecdad1 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -891,17 +891,6 @@ int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
 }
 EXPORT_SYMBOL_GPL(nfs_flock);
 
-/*
- * There is no protocol support for leases, so we have no way to implement
- * them correctly in the face of opens by other clients.
- */
-int nfs_setlease(struct file *file, long arg, struct file_lock **fl)
-{
-        dprintk("NFS: setlease(%pD2, arg=%ld)\n", file, arg);
-        return -EINVAL;
-}
-EXPORT_SYMBOL_GPL(nfs_setlease);
-
 const struct file_operations nfs_file_operations = {
         .llseek         = nfs_file_llseek,
         .read           = new_sync_read,
@@ -918,6 +907,6 @@ const struct file_operations nfs_file_operations = {
         .splice_read    = nfs_file_splice_read,
         .splice_write   = iter_file_splice_write,
         .check_flags    = nfs_check_flags,
-        .setlease       = nfs_setlease,
+        .setlease       = simple_nosetlease,
 };
 EXPORT_SYMBOL_GPL(nfs_file_operations);
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 9056622d2230..94d922ebb5ac 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -346,7 +346,6 @@ int nfs_file_release(struct inode *, struct file *);
 int nfs_lock(struct file *, int, struct file_lock *);
 int nfs_flock(struct file *, int, struct file_lock *);
 int nfs_check_flags(int);
-int nfs_setlease(struct file *, long, struct file_lock **);
 
 /* inode.c */
 extern struct workqueue_struct *nfsiod_workqueue;
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index a816f0627a6c..3e987ad9ae25 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -131,5 +131,5 @@ const struct file_operations nfs4_file_operations = {
         .splice_read    = nfs_file_splice_read,
         .splice_write   = iter_file_splice_write,
         .check_flags    = nfs_check_flags,
-        .setlease       = nfs_setlease,
+        .setlease       = simple_nosetlease,
 };