Add the setlease file_operation to exfat_file_operations and
exfat_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/exfat/dir.c  | 2 ++
 fs/exfat/file.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c
index 3045a58e124ae0f193af2caeef7261b20fe42e00..2dbf335eafefc5f51a5c70598786c35b85e2118d 100644
--- a/fs/exfat/dir.c
+++ b/fs/exfat/dir.c
@@ -7,6 +7,7 @@
 #include <linux/compat.h>
 #include <linux/bio.h>
 #include <linux/buffer_head.h>
+#include <linux/filelock.h>
 
 #include "exfat_raw.h"
 #include "exfat_fs.h"
@@ -298,6 +299,7 @@ const struct file_operations exfat_dir_operations = {
 	.compat_ioctl = exfat_compat_ioctl,
 #endif
 	.fsync		= exfat_file_fsync,
+	.setlease	= generic_setlease,
 };
 
 int exfat_alloc_new_dir(struct inode *inode, struct exfat_chain *clu)
diff --git a/fs/exfat/file.c b/fs/exfat/file.c
index 536c8078f0c192688eed5f5ee86dd1bc738be84f..b60ee0e1bec9344145a6328cdd727e35b317c08a 100644
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@ -12,6 +12,7 @@
 #include <linux/security.h>
 #include <linux/msdos_fs.h>
 #include <linux/writeback.h>
+#include <linux/filelock.h>
 
 #include "exfat_raw.h"
 #include "exfat_fs.h"
@@ -772,6 +773,7 @@ const struct file_operations exfat_file_operations = {
 	.fsync		= exfat_file_fsync,
 	.splice_read	= exfat_splice_read,
 	.splice_write	= iter_file_splice_write,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations exfat_file_inode_operations = {

-- 
2.52.0