Merge patch series "vfs: require filesystems to explicitly opt-in to lease support"

Jeff Layton <jlayton@kernel.org> says:

Yesterday, I sent patches to fix how directory delegation support is
handled on filesystems where the should be disabled [1]. That set is
appropriate for v6.19. For v7.0, I want to make lease support be more
opt-in, rather than opt-out:

For historical reasons, when ->setlease() file_operation is set to NULL,
the default is to use the kernel-internal lease implementation. This
means that if you want to disable them, you need to explicitly set the
->setlease() file_operation to simple_nosetlease() or the equivalent.

This has caused a number of problems over the years as some filesystems
have inadvertantly allowed leases to be acquired simply by having left
it set to NULL. It would be better if filesystems had to opt-in to lease
support, particularly with the advent of directory delegations.

This series has sets the ->setlease() operation in a pile of existing
local filesystems to generic_setlease() and then changes
kernel_setlease() to return -EINVAL when the setlease() operation is not
set.

With this change, new filesystems will need to explicitly set the
->setlease() operations in order to provide lease and delegation
support.

I mainly focused on filesystems that are NFS exportable, since NFS and
SMB are the main users of file leases, and they tend to end up exporting
the same filesystem types. Let me know if I've missed any.

[1]: https://lore.kernel.org/linux-fsdevel/20260107-setlease-6-19-v1-0-85f034abcc57@kernel.org/

* patches from https://patch.msgid.link/20260108-setlease-6-20-v1-0-ea4dec9b67fa@kernel.org: (24 commits)
  fs: remove simple_nosetlease()
  filelock: default to returning -EINVAL when ->setlease operation is NULL
  xfs: add setlease file operation
  ufs: add setlease file operation
  udf: add setlease file operation
  tmpfs: add setlease file operation
  squashfs: add setlease file operation
  overlayfs: add setlease file operation
  orangefs: add setlease file operation
  ocfs2: add setlease file operation
  ntfs3: add setlease file operation
  nilfs2: add setlease file operation
  jfs: add setlease file operation
  jffs2: add setlease file operation
  gfs2: add a setlease file operation
  fat: add setlease file operation
  f2fs: add setlease file operation
  exfat: add setlease file operation
  ext4: add setlease file operation
  ext2: add setlease file operation
  ...

Link: https://patch.msgid.link/20260108-setlease-6-20-v1-0-ea4dec9b67fa@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

61 files changed, 116 insertions, 42 deletions

diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst
index 3397937ed838..c0f7103628ab 100644
--- a/Documentation/filesystems/porting.rst
+++ b/Documentation/filesystems/porting.rst
@@ -1334,3 +1334,12 @@ end_creating() and the parent will be unlocked precisely when necessary.
 
 kill_litter_super() is gone; convert to DCACHE_PERSISTENT use (as all
 in-tree filesystems have done).
+
+---
+
+**mandatory**
+
+The ->setlease() file_operation must now be explicitly set in order to provide
+support for leases. When set to NULL, the kernel will now return -EINVAL to
+attempts to set a lease. Filesystems that wish to use the kernel-internal lease
+implementation should set it to generic_setlease().
diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst
index 670ba66b60e4..21dc8921dd9e 100644
--- a/Documentation/filesystems/vfs.rst
+++ b/Documentation/filesystems/vfs.rst
@@ -1180,9 +1180,12 @@ otherwise noted.
 	method is used by the splice(2) system call
 
 ``setlease``
-	called by the VFS to set or release a file lock lease.  setlease
-	implementations should call generic_setlease to record or remove
-	the lease in the inode after setting it.
+	called by the VFS to set or release a file lock lease.  Local
+	filesystems that wish to use the kernel-internal lease implementation
+	should set this to generic_setlease(). Other setlease implementations
+	should call generic_setlease() to record or remove the lease in the inode
+	after setting it. When set to NULL, attempts to set or remove a lease will
+	return -EINVAL.
 
 ``fallocate``
 	called by the VFS to preallocate blocks or punch a hole.
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index af7f72abbb76..e0d34e4e9076 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -242,7 +242,6 @@ const struct file_operations v9fs_dir_operations = {
 	.iterate_shared = v9fs_dir_readdir,
 	.open = v9fs_file_open,
 	.release = v9fs_dir_release,
-	.setlease = simple_nosetlease,
 };
 
 const struct file_operations v9fs_dir_operations_dotl = {
@@ -252,5 +251,4 @@ const struct file_operations v9fs_dir_operations_dotl = {
 	.open = v9fs_file_open,
 	.release = v9fs_dir_release,
 	.fsync = v9fs_file_fsync_dotl,
-	.setlease = simple_nosetlease,
 };
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 6f3880208587..c5e73c37baea 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -517,7 +517,6 @@ const struct file_operations v9fs_file_operations = {
 	.splice_read = v9fs_file_splice_read,
 	.splice_write = iter_file_splice_write,
 	.fsync = v9fs_file_fsync,
-	.setlease = simple_nosetlease,
 };
 
 const struct file_operations v9fs_file_operations_dotl = {
@@ -532,5 +531,4 @@ const struct file_operations v9fs_file_operations_dotl = {
 	.splice_read = v9fs_file_splice_read,
 	.splice_write = iter_file_splice_write,
 	.fsync = v9fs_file_fsync_dotl,
-	.setlease = simple_nosetlease,
 };
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index bd40d5f08810..fe18caaf4d65 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/iversion.h>
+#include <linux/filelock.h>
 #include "affs.h"
 
 struct affs_dir_data {
@@ -55,6 +56,7 @@ const struct file_operations affs_dir_operations = {
 	.iterate_shared	= affs_readdir,
 	.fsync		= affs_file_fsync,
 	.release	= affs_dir_release,
+	.setlease	= generic_setlease,
 };
 
 /*
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 765c3443663e..6c9258359ddb 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -15,6 +15,7 @@
 
 #include <linux/uio.h>
 #include <linux/blkdev.h>
+#include <linux/filelock.h>
 #include <linux/mpage.h>
 #include "affs.h"
 
@@ -1008,6 +1009,7 @@ const struct file_operations affs_file_operations = {
 	.release	= affs_file_release,
 	.fsync		= affs_file_fsync,
 	.splice_read	= filemap_splice_read,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations affs_file_inode_operations = {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 9fcfdd6b8189..d7c5d9270387 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -14,6 +14,7 @@
 #include <linux/fs_context.h>
 #include <linux/fs_parser.h>
 #include <linux/errno.h>
+#include <linux/filelock.h>
 #include <linux/stat.h>
 #include <linux/nls.h>
 #include <linux/buffer_head.h>
@@ -79,6 +80,7 @@ static const struct file_operations befs_dir_operations = {
 	.read		= generic_read_dir,
 	.iterate_shared	= befs_readdir,
 	.llseek		= generic_file_llseek,
+	.setlease	= generic_setlease,
 };
 
 static const struct inode_operations befs_dir_inode_operations = {
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1abc7ed2990e..aca2b541e72d 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -10,6 +10,7 @@
 #include <linux/string.h>
 #include <linux/backing-dev.h>
 #include <linux/falloc.h>
+#include <linux/filelock.h>
 #include <linux/writeback.h>
 #include <linux/compat.h>
 #include <linux/slab.h>
@@ -3867,6 +3868,7 @@ const struct file_operations btrfs_file_operations = {
 	.remap_file_range = btrfs_remap_file_range,
 	.uring_cmd	= btrfs_uring_cmd,
 	.fop_flags	= FOP_BUFFER_RASYNC | FOP_BUFFER_WASYNC,
+	.setlease	= generic_setlease,
 };
 
 int btrfs_fdatawrite_range(struct btrfs_inode *inode, loff_t start, loff_t end)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d2b302ac6af9..d377794b4c9f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8,6 +8,7 @@
 #include <linux/bio.h>
 #include <linux/blk-cgroup.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/fs.h>
 #include <linux/fs_struct.h>
 #include <linux/pagemap.h>
@@ -10596,6 +10597,7 @@ static const struct file_operations btrfs_dir_file_operations = {
 #endif
 	.release        = btrfs_release_file,
 	.fsync		= btrfs_sync_file,
+	.setlease	= generic_setlease,
 };
 
 /*
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 804588524cd5..86d7aa594ea9 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -2214,7 +2214,6 @@ const struct file_operations ceph_dir_fops = {
 	.fsync = ceph_fsync,
 	.lock = ceph_lock,
 	.flock = ceph_flock,
-	.setlease = simple_nosetlease,
 };
 
 const struct file_operations ceph_snapdir_fops = {
@@ -2222,7 +2221,6 @@ const struct file_operations ceph_snapdir_fops = {
 	.llseek = ceph_dir_llseek,
 	.open = ceph_open,
 	.release = ceph_release,
-	.setlease = simple_nosetlease,
 };
 
 const struct inode_operations ceph_dir_iops = {
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 983390069f73..31b691b2aea2 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -3169,7 +3169,6 @@ const struct file_operations ceph_file_fops = {
 	.mmap_prepare = ceph_mmap_prepare,
 	.fsync = ceph_fsync,
 	.lock = ceph_lock,
-	.setlease = simple_nosetlease,
 	.flock = ceph_flock,
 	.splice_read = ceph_splice_read,
 	.splice_write = iter_file_splice_write,
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index e54ebe402df7..41b1a869cf13 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 #include <linux/ramfs.h>
 #include <linux/init.h>
@@ -938,6 +939,7 @@ static const struct file_operations cramfs_directory_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.iterate_shared	= cramfs_readdir,
+	.setlease	= generic_setlease,
 };
 
 static const struct inode_operations cramfs_dir_inode_operations = {
diff --git a/fs/efs/dir.c b/fs/efs/dir.c
index f892ac7c2a35..35ad0092c115 100644
--- a/fs/efs/dir.c
+++ b/fs/efs/dir.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/buffer_head.h>
+#include <linux/filelock.h>
 #include "efs.h"
 
 static int efs_readdir(struct file *, struct dir_context *);
@@ -14,6 +15,7 @@ const struct file_operations efs_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
 	.iterate_shared	= efs_readdir,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations efs_dir_inode_operations = {
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index bb13c4cb8455..e2941b471561 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2021, Alibaba Cloud
  */
 #include "internal.h"
+#include <linux/filelock.h>
 #include <linux/sched/mm.h>
 #include <trace/events/erofs.h>
 
@@ -483,4 +484,5 @@ const struct file_operations erofs_file_fops = {
 	.mmap_prepare	= erofs_file_mmap_prepare,
 	.get_unmapped_area = thp_get_unmapped_area,
 	.splice_read	= filemap_splice_read,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/erofs/dir.c b/fs/erofs/dir.c
index 32b4f5aa60c9..e5132575b9d3 100644
--- a/fs/erofs/dir.c
+++ b/fs/erofs/dir.c
@@ -5,6 +5,7 @@
  * Copyright (C) 2022, Alibaba Cloud
  */
 #include "internal.h"
+#include <linux/filelock.h>
 
 static int erofs_fill_dentries(struct inode *dir, struct dir_context *ctx,
 			       void *dentry_blk, struct erofs_dirent *de,
@@ -127,4 +128,5 @@ const struct file_operations erofs_dir_fops = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = erofs_compat_ioctl,
 #endif
+	.setlease	= generic_setlease,
 };
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c
index 3045a58e124a..2dbf335eafef 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 536c8078f0c1..b60ee0e1bec9 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 = {
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index b07b3b369710..395fc36c089b 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -24,6 +24,7 @@
 
 #include "ext2.h"
 #include <linux/buffer_head.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
 #include <linux/iversion.h>
@@ -734,4 +735,5 @@ const struct file_operations ext2_dir_operations = {
 	.compat_ioctl	= ext2_compat_ioctl,
 #endif
 	.fsync		= ext2_fsync,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 76bddce462fc..ebe356a38b18 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -22,6 +22,7 @@
 #include <linux/time.h>
 #include <linux/pagemap.h>
 #include <linux/dax.h>
+#include <linux/filelock.h>
 #include <linux/quotaops.h>
 #include <linux/iomap.h>
 #include <linux/uio.h>
@@ -325,6 +326,7 @@ const struct file_operations ext2_file_operations = {
 	.get_unmapped_area = thp_get_unmapped_area,
 	.splice_read	= filemap_splice_read,
 	.splice_write	= iter_file_splice_write,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations ext2_file_inode_operations = {
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 256fe2c1d4c1..00c4b3c82b65 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -24,6 +24,7 @@
 
 #include <linux/fs.h>
 #include <linux/buffer_head.h>
+#include <linux/filelock.h>
 #include <linux/slab.h>
 #include <linux/iversion.h>
 #include <linux/unicode.h>
@@ -690,4 +691,5 @@ const struct file_operations ext4_dir_operations = {
 #endif
 	.fsync		= ext4_sync_file,
 	.release	= ext4_release_dir,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 7a8b30932189..534cf864101f 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -25,6 +25,7 @@
 #include <linux/mount.h>
 #include <linux/path.h>
 #include <linux/dax.h>
+#include <linux/filelock.h>
 #include <linux/quotaops.h>
 #include <linux/pagevec.h>
 #include <linux/uio.h>
@@ -980,6 +981,7 @@ const struct file_operations ext4_file_operations = {
 	.fop_flags	= FOP_MMAP_SYNC | FOP_BUFFER_RASYNC |
 			  FOP_DIO_PARALLEL_WRITE |
 			  FOP_DONTCACHE,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations ext4_file_inode_operations = {
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 48f4f98afb01..be70dfb3b152 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -8,6 +8,7 @@
 #include <linux/unaligned.h>
 #include <linux/fs.h>
 #include <linux/f2fs_fs.h>
+#include <linux/filelock.h>
 #include <linux/sched/signal.h>
 #include <linux/unicode.h>
 #include "f2fs.h"
@@ -1136,4 +1137,5 @@ const struct file_operations f2fs_dir_operations = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = f2fs_compat_ioctl,
 #endif
+	.setlease	= generic_setlease,
 };
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index d7047ca6b98d..cd4b1d3c90ab 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -11,6 +11,7 @@
 #include <linux/writeback.h>
 #include <linux/blkdev.h>
 #include <linux/falloc.h>
+#include <linux/filelock.h>
 #include <linux/types.h>
 #include <linux/compat.h>
 #include <linux/uaccess.h>
@@ -5457,4 +5458,5 @@ const struct file_operations f2fs_file_operations = {
 	.splice_write	= iter_file_splice_write,
 	.fadvise	= f2fs_file_fadvise,
 	.fop_flags	= FOP_BUFFER_RASYNC,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 92b091783966..807bc8b1bc14 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -16,6 +16,7 @@
 
 #include <linux/slab.h>
 #include <linux/compat.h>
+#include <linux/filelock.h>
 #include <linux/uaccess.h>
 #include <linux/iversion.h>
 #include "fat.h"
@@ -876,6 +877,7 @@ const struct file_operations fat_dir_operations = {
 	.compat_ioctl	= fat_compat_dir_ioctl,
 #endif
 	.fsync		= fat_file_fsync,
+	.setlease	= generic_setlease,
 };
 
 static int fat_get_short_entry(struct inode *dir, loff_t *pos,
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 4fc49a614fb8..d50a6d8bfaae 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -13,6 +13,7 @@
 #include <linux/mount.h>
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
+#include <linux/filelock.h>
 #include <linux/fsnotify.h>
 #include <linux/security.h>
 #include <linux/falloc.h>
@@ -212,6 +213,7 @@ const struct file_operations fat_file_operations = {
 	.splice_read	= filemap_splice_read,
 	.splice_write	= iter_file_splice_write,
 	.fallocate	= fat_fallocate,
+	.setlease	= generic_setlease,
 };
 
 static int fat_cont_expand(struct inode *inode, loff_t size)
diff --git a/fs/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 1b0bca8b4cc6..138e08de976e 100644
--- a/fs/freevxfs/vxfs_lookup.c
+++ b/fs/freevxfs/vxfs_lookup.c
@@ -8,6 +8,7 @@
  * Veritas filesystem driver - lookup and other directory related code.
  */
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
@@ -36,6 +37,7 @@ const struct file_operations vxfs_dir_operations = {
 	.llseek =		generic_file_llseek,
 	.read =			generic_read_dir,
 	.iterate_shared =	vxfs_readdir,
+	.setlease =		generic_setlease,
 };
 
 
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 64b29db52cf4..7c183ec496bf 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -2430,7 +2430,6 @@ static const struct file_operations fuse_dir_operations = {
 	.fsync		= fuse_dir_fsync,
 	.unlocked_ioctl	= fuse_dir_ioctl,
 	.compat_ioctl	= fuse_dir_compat_ioctl,
-	.setlease	= simple_nosetlease,
 };
 
 static const struct inode_operations fuse_common_inode_operations = {
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 86376f0dbf3a..3e061e8115ec 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -1593,7 +1593,6 @@ const struct file_operations gfs2_file_fops = {
 	.flock		= gfs2_flock,
 	.splice_read	= copy_splice_read,
 	.splice_write	= gfs2_file_splice_write,
-	.setlease	= simple_nosetlease,
 	.fallocate	= gfs2_fallocate,
 	.fop_flags	= FOP_ASYNC_LOCK,
 };
@@ -1608,7 +1607,6 @@ const struct file_operations gfs2_dir_fops = {
 	.lock		= gfs2_lock,
 	.flock		= gfs2_flock,
 	.llseek		= default_llseek,
-	.setlease	= simple_nosetlease,
 	.fop_flags	= FOP_ASYNC_LOCK,
 };
 
@@ -1639,5 +1637,6 @@ const struct file_operations gfs2_dir_fops_nolock = {
 	.release	= gfs2_release,
 	.fsync		= gfs2_fsync,
 	.llseek		= default_llseek,
+	.setlease	= generic_setlease,
 };
 
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index 09df40b612fb..2ca16c3fe5ef 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -12,6 +12,7 @@
  *  isofs directory handling functions
  */
 #include <linux/gfp.h>
+#include <linux/filelock.h>
 #include "isofs.h"
 
 int isofs_name_translate(struct iso_directory_record *de, char *new, struct inode *inode)
@@ -271,6 +272,7 @@ const struct file_operations isofs_dir_operations =
 	.llseek = generic_file_llseek,
 	.read = generic_read_dir,
 	.iterate_shared = isofs_readdir,
+	.setlease = generic_setlease,
 };
 
 /*
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index dd91f725ded6..2b38ce1fd8e8 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/crc32.h>
 #include <linux/jffs2.h>
 #include "jffs2_fs_i.h"
@@ -48,6 +49,7 @@ const struct file_operations jffs2_dir_operations =
 	.unlocked_ioctl=jffs2_ioctl,
 	.fsync =	jffs2_fsync,
 	.llseek =	generic_file_llseek,
+	.setlease =	generic_setlease,
 };
 
 
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index b697f3c259ef..5e1ef4bc009b 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -14,6 +14,7 @@
 
 #include <linux/kernel.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/time.h>
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
@@ -60,6 +61,7 @@ const struct file_operations jffs2_file_operations =
 	.fsync =	jffs2_fsync,
 	.splice_read =	filemap_splice_read,
 	.splice_write = iter_file_splice_write,
+	.setlease =	generic_setlease,
 };
 
 /* jffs2_file_inode_operations */
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 87ad042221e7..246568cb9a6e 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -6,6 +6,7 @@
 
 #include <linux/mm.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/posix_acl.h>
 #include <linux/quotaops.h>
 #include "jfs_incore.h"
@@ -153,4 +154,5 @@ const struct file_operations jfs_file_operations = {
 	.release	= jfs_release,
 	.unlocked_ioctl = jfs_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 65a218eba8fa..f7e2ae7a4c37 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/namei.h>
 #include <linux/ctype.h>
 #include <linux/quotaops.h>
@@ -1545,6 +1546,7 @@ const struct file_operations jfs_dir_operations = {
 	.unlocked_ioctl = jfs_ioctl,
 	.compat_ioctl	= compat_ptr_ioctl,
 	.llseek		= generic_file_llseek,
+	.setlease	= generic_setlease,
 };
 
 static int jfs_ci_hash(const struct dentry *dir, struct qstr *this)
diff --git a/fs/libfs.c b/fs/libfs.c
index 591eb649ebba..f1860dff86f2 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -6,6 +6,7 @@
 
 #include <linux/blkdev.h>
 #include <linux/export.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 #include <linux/cred.h>
@@ -570,6 +571,7 @@ const struct file_operations simple_offset_dir_operations = {
 	.iterate_shared	= offset_readdir,
 	.read		= generic_read_dir,
 	.fsync		= noop_fsync,
+	.setlease	= generic_setlease,
 };
 
 struct dentry *find_next_child(struct dentry *parent, struct dentry *prev)
@@ -1698,24 +1700,6 @@ struct inode *alloc_anon_inode(struct super_block *s)
 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
- * @priv: private data for lm_setup operation
- *
- * 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, int arg, struct file_lease **flp,
-		  void **priv)
-{
-	return -EINVAL;
-}
-EXPORT_SYMBOL(simple_nosetlease);
-
-/**
  * simple_get_link - generic helper to get the target of "fast" symlinks
  * @dentry: not used here
  * @inode: the symlink inode
diff --git a/fs/locks.c b/fs/locks.c
index 7ea949d7ff45..cf1968b01bcb 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -2019,8 +2019,7 @@ kernel_setlease(struct file *filp, int arg, struct file_lease **lease, void **pr
 		setlease_notifier(arg, *lease);
 	if (filp->f_op->setlease)
 		return filp->f_op->setlease(filp, arg, lease, priv);
-	else
-		return generic_setlease(filp, arg, lease, priv);
+	return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(kernel_setlease);
 
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 71df279febf7..23a78a742b61 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -66,7 +66,6 @@ const struct file_operations nfs_dir_operations = {
 	.open		= nfs_opendir,
 	.release	= nfs_closedir,
 	.fsync		= nfs_fsync_dir,
-	.setlease	= simple_nosetlease,
 };
 
 const struct address_space_operations nfs_dir_aops = {
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index d020aab40c64..9d2695619618 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -962,7 +962,6 @@ 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	= simple_nosetlease,
 	.fop_flags	= FOP_DONTCACHE,
 };
 EXPORT_SYMBOL_GPL(nfs_file_operations);
diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 6ca3d74be1e1..b243199036df 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 1b8d754db44d..f93b68c4877c 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 = {
diff --git a/fs/ntfs3/dir.c b/fs/ntfs3/dir.c
index b98e95d6b4d9..b66438e34bbb 100644
--- a/fs/ntfs3/dir.c
+++ b/fs/ntfs3/dir.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/nls.h>
 
 #include "debug.h"
@@ -630,6 +631,7 @@ const struct file_operations ntfs_dir_operations = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = ntfs_compat_ioctl,
 #endif
+	.setlease	= generic_setlease,
 };
 
 #if IS_ENABLED(CONFIG_NTFS_FS)
@@ -638,6 +640,7 @@ const struct file_operations ntfs_legacy_dir_operations = {
 	.read		= generic_read_dir,
 	.iterate_shared	= ntfs_readdir,
 	.open		= ntfs_file_open,
+	.setlease	= generic_setlease,
 };
 #endif
 // clang-format on
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 2e7b2e566ebe..6cb4479072a6 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -14,6 +14,7 @@
 #include <linux/falloc.h>
 #include <linux/fiemap.h>
 #include <linux/fileattr.h>
+#include <linux/filelock.h>
 
 #include "debug.h"
 #include "ntfs.h"
@@ -1477,6 +1478,7 @@ const struct file_operations ntfs_file_operations = {
 	.fsync		= ntfs_file_fsync,
 	.fallocate	= ntfs_fallocate,
 	.release	= ntfs_file_release,
+	.setlease	= generic_setlease,
 };
 
 #if IS_ENABLED(CONFIG_NTFS_FS)
@@ -1486,6 +1488,7 @@ const struct file_operations ntfs_legacy_file_operations = {
 	.splice_read	= ntfs_file_splice_read,
 	.open		= ntfs_file_open,
 	.release	= ntfs_file_release,
+	.setlease	= generic_setlease,
 };
 #endif
 // clang-format on
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 732c61599159..ed961a854983 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -19,6 +19,7 @@
 #include <linux/mount.h>
 #include <linux/writeback.h>
 #include <linux/falloc.h>
+#include <linux/filelock.h>
 #include <linux/quotaops.h>
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
@@ -2823,6 +2824,7 @@ const struct file_operations ocfs2_fops = {
 	.fallocate	= ocfs2_fallocate,
 	.remap_file_range = ocfs2_remap_file_range,
 	.fop_flags	= FOP_ASYNC_LOCK,
+	.setlease	= generic_setlease,
 };
 
 WRAP_DIR_ITER(ocfs2_readdir) // FIXME!
@@ -2840,6 +2842,7 @@ const struct file_operations ocfs2_dops = {
 	.lock		= ocfs2_lock,
 	.flock		= ocfs2_flock,
 	.fop_flags	= FOP_ASYNC_LOCK,
+	.setlease	= generic_setlease,
 };
 
 /*
@@ -2871,6 +2874,7 @@ const struct file_operations ocfs2_fops_no_plocks = {
 	.splice_write	= iter_file_splice_write,
 	.fallocate	= ocfs2_fallocate,
 	.remap_file_range = ocfs2_remap_file_range,
+	.setlease	= generic_setlease,
 };
 
 const struct file_operations ocfs2_dops_no_plocks = {
@@ -2885,4 +2889,5 @@ const struct file_operations ocfs2_dops_no_plocks = {
 	.compat_ioctl   = ocfs2_compat_ioctl,
 #endif
 	.flock		= ocfs2_flock,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/orangefs/dir.c b/fs/orangefs/dir.c
index 6d1fbeca9d81..3c32bf9f1296 100644
--- a/fs/orangefs/dir.c
+++ b/fs/orangefs/dir.c
@@ -3,6 +3,7 @@
  * Copyright 2017 Omnibond Systems, L.L.C.
  */
 
+#include <linux/filelock.h>
 #include "protocol.h"
 #include "orangefs-kernel.h"
 #include "orangefs-bufmap.h"
@@ -392,5 +393,6 @@ const struct file_operations orangefs_dir_operations = {
 	.read = generic_read_dir,
 	.iterate_shared = orangefs_dir_iterate,
 	.open = orangefs_dir_open,
-	.release = orangefs_dir_release
+	.release = orangefs_dir_release,
+	.setlease = generic_setlease,
 };
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 919f99b16834..afd610a3fc68 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -583,4 +583,5 @@ const struct file_operations orangefs_file_operations = {
 	.flush		= orangefs_flush,
 	.release	= orangefs_file_release,
 	.fsync		= orangefs_fsync,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index cbae89457234..8269431ba3c6 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -5,6 +5,7 @@
 
 #include <linux/cred.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/mount.h>
 #include <linux/xattr.h>
 #include <linux/uio.h>
@@ -647,4 +648,5 @@ const struct file_operations ovl_file_operations = {
 
 	.copy_file_range	= ovl_copy_file_range,
 	.remap_file_range	= ovl_remap_file_range,
+	.setlease		= generic_setlease,
 };
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 160960bb0ad0..7fd415d7471e 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -8,6 +8,7 @@
 #include <linux/slab.h>
 #include <linux/namei.h>
 #include <linux/file.h>
+#include <linux/filelock.h>
 #include <linux/xattr.h>
 #include <linux/rbtree.h>
 #include <linux/security.h>
@@ -1070,6 +1071,7 @@ const struct file_operations ovl_dir_operations = {
 	.llseek		= ovl_dir_llseek,
 	.fsync		= ovl_dir_fsync,
 	.release	= ovl_dir_release,
+	.setlease	= generic_setlease,
 };
 
 int ovl_check_empty_dir(struct dentry *dentry, struct list_head *list)
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index 42a529e26bd6..6402715ab377 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/buffer_head.h>
+#include <linux/filelock.h>
 #include "qnx4.h"
 
 static int qnx4_readdir(struct file *file, struct dir_context *ctx)
@@ -71,6 +72,7 @@ const struct file_operations qnx4_dir_operations =
 	.read		= generic_read_dir,
 	.iterate_shared	= qnx4_readdir,
 	.fsync		= generic_file_fsync,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations qnx4_dir_inode_operations =
diff --git a/fs/qnx6/dir.c b/fs/qnx6/dir.c
index b4d10e45f2e4..ae0c9846833d 100644
--- a/fs/qnx6/dir.c
+++ b/fs/qnx6/dir.c
@@ -11,6 +11,7 @@
  *
  */
 
+#include <linux/filelock.h>
 #include "qnx6.h"
 
 static unsigned qnx6_lfile_checksum(char *name, unsigned size)
@@ -275,6 +276,7 @@ const struct file_operations qnx6_dir_operations = {
 	.read		= generic_read_dir,
 	.iterate_shared	= qnx6_readdir,
 	.fsync		= generic_file_fsync,
+	.setlease	= generic_setlease,
 };
 
 const struct inode_operations qnx6_dir_inode_operations = {
diff --git a/fs/read_write.c b/fs/read_write.c
index 833bae068770..50bff7edc91f 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -20,6 +20,7 @@
 #include <linux/compat.h>
 #include <linux/mount.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include "internal.h"
 
 #include <linux/uaccess.h>
@@ -30,6 +31,7 @@ const struct file_operations generic_ro_fops = {
 	.read_iter	= generic_file_read_iter,
 	.mmap_prepare	= generic_file_readonly_mmap_prepare,
 	.splice_read	= filemap_splice_read,
+	.setlease	= generic_setlease,
 };
 
 EXPORT_SYMBOL(generic_ro_fops);
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index a3dc7cb1ab54..8015df1f711e 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -1709,7 +1709,6 @@ const struct file_operations cifs_dir_ops = {
 	.remap_file_range = cifs_remap_file_range,
 	.llseek = generic_file_llseek,
 	.fsync = cifs_dir_fsync,
-	.setlease = simple_nosetlease,
 };
 
 static void
diff --git a/fs/squashfs/dir.c b/fs/squashfs/dir.c
index a2ade63eccdf..cd3598bd034f 100644
--- a/fs/squashfs/dir.c
+++ b/fs/squashfs/dir.c
@@ -15,6 +15,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/vfs.h>
 #include <linux/slab.h>
 
@@ -220,4 +221,5 @@ const struct file_operations squashfs_dir_ops = {
 	.read = generic_read_dir,
 	.iterate_shared = squashfs_readdir,
 	.llseek = generic_file_llseek,
+	.setlease = generic_setlease,
 };
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c
index 1582e0637a7e..4be92206e755 100644
--- a/fs/squashfs/file.c
+++ b/fs/squashfs/file.c
@@ -28,6 +28,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/vfs.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
@@ -775,5 +776,6 @@ const struct file_operations squashfs_file_operations = {
 	.llseek		= squashfs_llseek,
 	.read_iter	= generic_file_read_iter,
 	.mmap_prepare	= generic_file_readonly_mmap_prepare,
-	.splice_read	= filemap_splice_read
+	.splice_read	= filemap_splice_read,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 5023dfe191e8..5bf75638f352 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -24,6 +24,7 @@
 
 #include <linux/string.h>
 #include <linux/errno.h>
+#include <linux/filelock.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/bio.h>
@@ -157,4 +158,5 @@ const struct file_operations udf_dir_operations = {
 	.iterate_shared		= udf_readdir,
 	.unlocked_ioctl		= udf_ioctl,
 	.fsync			= generic_file_fsync,
+	.setlease		= generic_setlease,
 };
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 0d76c4f37b3e..32ae7cfd72c5 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -28,6 +28,7 @@
 #include <linux/string.h> /* memset */
 #include <linux/capability.h>
 #include <linux/errno.h>
+#include <linux/filelock.h>
 #include <linux/pagemap.h>
 #include <linux/uio.h>
 
@@ -208,6 +209,7 @@ const struct file_operations udf_file_operations = {
 	.splice_read		= filemap_splice_read,
 	.splice_write		= iter_file_splice_write,
 	.llseek			= generic_file_llseek,
+	.setlease		= generic_setlease,
 };
 
 static int udf_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 0388a1bae326..43f1578ab866 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -19,6 +19,7 @@
 
 #include <linux/time.h>
 #include <linux/fs.h>
+#include <linux/filelock.h>
 #include <linux/swap.h>
 #include <linux/iversion.h>
 
@@ -653,4 +654,5 @@ const struct file_operations ufs_dir_operations = {
 	.iterate_shared	= ufs_readdir,
 	.fsync		= generic_file_fsync,
 	.llseek		= ufs_dir_llseek,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index c2a391c17df7..809c7a4603f8 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -25,6 +25,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/filelock.h>
 
 #include "ufs_fs.h"
 #include "ufs.h"
@@ -43,4 +44,5 @@ const struct file_operations ufs_file_operations = {
 	.fsync		= generic_file_fsync,
 	.splice_read	= filemap_splice_read,
 	.splice_write	= iter_file_splice_write,
+	.setlease	= generic_setlease,
 };
diff --git a/fs/vboxsf/dir.c b/fs/vboxsf/dir.c
index 230d7589d15c..42bedc4ec7af 100644
--- a/fs/vboxsf/dir.c
+++ b/fs/vboxsf/dir.c
@@ -186,7 +186,6 @@ const struct file_operations vboxsf_dir_fops = {
 	.release = vboxsf_dir_release,
 	.read = generic_read_dir,
 	.llseek = generic_file_llseek,
-	.setlease = simple_nosetlease,
 };
 
 /*
diff --git a/fs/vboxsf/file.c b/fs/vboxsf/file.c
index 4bebd947314a..111752010edb 100644
--- a/fs/vboxsf/file.c
+++ b/fs/vboxsf/file.c
@@ -218,7 +218,6 @@ const struct file_operations vboxsf_reg_fops = {
 	.release = vboxsf_file_release,
 	.fsync = noop_fsync,
 	.splice_read = filemap_splice_read,
-	.setlease = simple_nosetlease,
 };
 
 const struct inode_operations vboxsf_reg_iops = {
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 7874cf745af3..ecd7bf42446b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -36,6 +36,7 @@
 #include <linux/mman.h>
 #include <linux/fadvise.h>
 #include <linux/mount.h>
+#include <linux/filelock.h>
 
 static const struct vm_operations_struct xfs_file_vm_ops;
 
@@ -2007,6 +2008,7 @@ const struct file_operations xfs_file_operations = {
 	.fop_flags	= FOP_MMAP_SYNC | FOP_BUFFER_RASYNC |
 			  FOP_BUFFER_WASYNC | FOP_DIO_PARALLEL_WRITE |
 			  FOP_DONTCACHE,
+	.setlease	= generic_setlease,
 };
 
 const struct file_operations xfs_dir_file_operations = {
@@ -2019,4 +2021,5 @@ const struct file_operations xfs_dir_file_operations = {
 	.compat_ioctl	= xfs_file_compat_ioctl,
 #endif
 	.fsync		= xfs_dir_fsync,
+	.setlease	= generic_setlease,
 };
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f5c9cf28c4dc..e46e8aad9339 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3217,7 +3217,6 @@ extern int always_delete_dentry(const struct dentry *);
 extern struct inode *alloc_anon_inode(struct super_block *);
 struct inode *anon_inode_make_secure_inode(struct super_block *sb, const char *name,
 					   const struct inode *context_inode);
-extern int simple_nosetlease(struct file *, int, struct file_lease **, void **);
 
 extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
diff --git a/mm/shmem.c b/mm/shmem.c
index ec6c01378e9d..88ef1fd5cd38 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -29,6 +29,7 @@
 #include <linux/pagemap.h>
 #include <linux/file.h>
 #include <linux/fileattr.h>
+#include <linux/filelock.h>
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/sched/signal.h>
@@ -5219,6 +5220,7 @@ static const struct file_operations shmem_file_operations = {
 	.splice_read	= shmem_file_splice_read,
 	.splice_write	= iter_file_splice_write,
 	.fallocate	= shmem_fallocate,
+	.setlease	= generic_setlease,
 #endif
 };