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Message-Id: <20260108-setlease-6-20-v1-1-ea4dec9b67fa@kernel.org>
Date: Thu, 08 Jan 2026 12:12:56 -0500
From: Jeff Layton <jlayton@...nel.org>
To: Luis de Bethencourt <luisbg@...nel.org>,
Salah Triki <salah.triki@...il.com>, Nicolas Pitre <nico@...xnic.net>,
Christoph Hellwig <hch@...radead.org>, Jan Kara <jack@...e.cz>,
Anders Larsen <al@...rsen.net>, Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, David Sterba <dsterba@...e.com>,
Chris Mason <clm@...com>, Gao Xiang <xiang@...nel.org>,
Chao Yu <chao@...nel.org>, Yue Hu <zbestahu@...il.com>,
Jeffle Xu <jefflexu@...ux.alibaba.com>,
Sandeep Dhavale <dhavale@...gle.com>, Hongbo Li <lihongbo22@...wei.com>,
Chunhai Guo <guochunhai@...o.com>, Jan Kara <jack@...e.com>,
Theodore Ts'o <tytso@....edu>, Andreas Dilger <adilger.kernel@...ger.ca>,
Jaegeuk Kim <jaegeuk@...nel.org>,
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
David Woodhouse <dwmw2@...radead.org>, Richard Weinberger <richard@....at>,
Dave Kleikamp <shaggy@...nel.org>,
Ryusuke Konishi <konishi.ryusuke@...il.com>,
Viacheslav Dubeyko <slava@...eyko.com>,
Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
Mark Fasheh <mark@...heh.com>, Joel Becker <jlbec@...lplan.org>,
Joseph Qi <joseph.qi@...ux.alibaba.com>,
Mike Marshall <hubcap@...ibond.com>,
Martin Brandenburg <martin@...ibond.com>,
Miklos Szeredi <miklos@...redi.hu>, Amir Goldstein <amir73il@...il.com>,
Phillip Lougher <phillip@...ashfs.org.uk>, Carlos Maiolino <cem@...nel.org>,
Hugh Dickins <hughd@...gle.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Namjae Jeon <linkinjeon@...nel.org>, Sungjong Seo <sj1557.seo@...sung.com>,
Yuezhang Mo <yuezhang.mo@...y.com>, Chuck Lever <chuck.lever@...cle.com>,
Alexander Aring <alex.aring@...il.com>,
Andreas Gruenbacher <agruenba@...hat.com>, Jonathan Corbet <corbet@....net>,
"Matthew Wilcox (Oracle)" <willy@...radead.org>,
Eric Van Hensbergen <ericvh@...nel.org>,
Latchesar Ionkov <lucho@...kov.net>,
Dominique Martinet <asmadeus@...ewreck.org>,
Christian Schoenebeck <linux_oss@...debyte.com>,
Xiubo Li <xiubli@...hat.com>, Ilya Dryomov <idryomov@...il.com>,
Trond Myklebust <trondmy@...nel.org>, Anna Schumaker <anna@...nel.org>,
Steve French <sfrench@...ba.org>, Paulo Alcantara <pc@...guebit.org>,
Ronnie Sahlberg <ronniesahlberg@...il.com>,
Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
Bharath SM <bharathsm@...rosoft.com>, Hans de Goede <hansg@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-btrfs@...r.kernel.org, linux-erofs@...ts.ozlabs.org,
linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
linux-mtd@...ts.infradead.org, jfs-discussion@...ts.sourceforge.net,
linux-nilfs@...r.kernel.org, ntfs3@...ts.linux.dev,
ocfs2-devel@...ts.linux.dev, devel@...ts.orangefs.org,
linux-unionfs@...r.kernel.org, linux-xfs@...r.kernel.org,
linux-mm@...ck.org, gfs2@...ts.linux.dev, linux-doc@...r.kernel.org,
v9fs@...ts.linux.dev, ceph-devel@...r.kernel.org, linux-nfs@...r.kernel.org,
linux-cifs@...r.kernel.org, samba-technical@...ts.samba.org,
Jeff Layton <jlayton@...nel.org>
Subject: [PATCH 01/24] fs: add setlease to generic_ro_fops and read-only
filesystem directory operations
Add the setlease file_operation to generic_ro_fops, which covers file
operations for several read-only filesystems (BEFS, EFS, ISOFS, QNX4,
QNX6, CRAMFS, FREEVXFS). Also add setlease to the directory
file_operations for these filesystems. 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 these filesystems.
Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
fs/befs/linuxvfs.c | 2 ++
fs/cramfs/inode.c | 2 ++
fs/efs/dir.c | 2 ++
fs/freevxfs/vxfs_lookup.c | 2 ++
fs/isofs/dir.c | 2 ++
fs/qnx4/dir.c | 2 ++
fs/qnx6/dir.c | 2 ++
fs/read_write.c | 2 ++
8 files changed, 16 insertions(+)
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 9fcfdd6b8189aaf5cc3b68aa8dff4798af5bdcbc..d7c5d9270387bf6c3e94942e6331b449f90fe428 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/cramfs/inode.c b/fs/cramfs/inode.c
index e54ebe402df79d43a2c7cf491d669829f7ef81b7..41b1a869cf135d014003d6bf1c343d590ae7a084 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 f892ac7c2a35e0094a314eeded06a974154e46d7..35ad0092c11547af68ef8baf4965b50a0a7593fe 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/freevxfs/vxfs_lookup.c b/fs/freevxfs/vxfs_lookup.c
index 1b0bca8b4cc686043d92246042dcf833d37712e4..138e08de976ea762a46043316f27e9a031f60c32 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/isofs/dir.c b/fs/isofs/dir.c
index 09df40b612fbf27a1a93af2b4fbf6a607f4a1ab4..2ca16c3fe5ef3427e5bbd0631eb8323ef3c58bf1 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/qnx4/dir.c b/fs/qnx4/dir.c
index 42a529e26bd68b6de1a7738c409d5942a92066f8..6402715ab377e5686558371dd76e5a4c1cfbb787 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 b4d10e45f2e41b45568fe813a3cc0aa253bcab6e..ae0c9846833d916beb7f356cfa6e9de01a6f6963 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 833bae068770a4e410e4895132586313a9687fa2..50bff7edc91f36fe5ee24198bd51a33c278d40a2 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);
--
2.52.0
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