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authorJeff Layton <jlayton@primarydata.com>2014-08-27 06:49:41 -0400
committerJeff Layton <jlayton@primarydata.com>2014-09-09 16:01:36 -0400
commit1c994a0909a556508c2cc26ab5d9e13c5ce33aa0 (patch)
tree6bb67db15f5e74c07c793ce3e27165c542f14c95 /fs/libfs.c
parent699688a416524c3cea9eafaca69fc6c06c13c02e (diff)
downloadop-kernel-dev-1c994a0909a556508c2cc26ab5d9e13c5ce33aa0.zip
op-kernel-dev-1c994a0909a556508c2cc26ab5d9e13c5ce33aa0.tar.gz
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>
Diffstat (limited to 'fs/libfs.c')
-rw-r--r--fs/libfs.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 88e3e00..29012a3 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1075,3 +1075,19 @@ struct inode *alloc_anon_inode(struct super_block *s)
return inode;
}
EXPORT_SYMBOL(alloc_anon_inode);
+
+/**
+ * simple_nosetlease - generic helper for prohibiting leases
+ * @filp: file pointer
+ * @arg: type of lease to obtain
+ * @flp: new lease supplied for insertion
+ *
+ * Generic helper for filesystems that do not wish to allow leases to be set.
+ * All arguments are ignored and it just returns -EINVAL.
+ */
+int
+simple_nosetlease(struct file *filp, long arg, struct file_lock **flp)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(simple_nosetlease);
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