fs: remove simple_nosetlease()

Setting ->setlease() to a NULL pointer now has the same effect as
setting it to simple_nosetlease(). Remove all of the setlease
file_operations that are set to simple_nosetlease, and the function
itself.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260108-setlease-6-20-v1-24-ea4dec9b67fa@kernel.org
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

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,
 };

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,
 };

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 = {

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,

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 = {

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,
 };
 

fs/libfs.c

@@ -1699,24 +1699,6 @@ 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

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 = {

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);

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

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,
 };
 
 /*

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 = {

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 *);