Add the setlease file_operation to nilfs_file_operations and
nilfs_dir_operations, pointing to generic_setlease.  A future patch
will change the default behavior to reject lease attempts with -EINVAL
when there is no setlease file operation defined. Add generic_setlease
to retain the ability to set leases on this filesystem.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/nilfs2/dir.c  | 3 ++-
 fs/nilfs2/file.c | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 6ca3d74be1e16d5bc577e2520f1e841287a2511f..b243199036dfa1ab2299efaaa5bdf5da2d159ff2 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -30,6 +30,7 @@
  */
 
 #include <linux/pagemap.h>
+#include <linux/filelock.h>
 #include "nilfs.h"
 #include "page.h"
 
@@ -661,5 +662,5 @@ const struct file_operations nilfs_dir_operations = {
 	.compat_ioctl	= nilfs_compat_ioctl,
 #endif	/* CONFIG_COMPAT */
 	.fsync		= nilfs_sync_file,
-
+	.setlease	= generic_setlease,
 };
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index 1b8d754db44d44d25dcd13f008d266ec83c74d3f..f93b68c4877c5ed369e90b723517e117142335de 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/mm.h>
 #include <linux/writeback.h>
 #include "nilfs.h"
@@ -150,6 +151,7 @@ const struct file_operations nilfs_file_operations = {
 	.fsync		= nilfs_sync_file,
 	.splice_read	= filemap_splice_read,
 	.splice_write   = iter_file_splice_write,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations nilfs_file_inode_operations = {

-- 
2.52.0