[PATCH 00/24] vfs: require filesystems to explicitly opt-in to lease support

[Christian Brauner]

On Thu, 08 Jan 2026 12:12:55 -0500, Jeff Layton wrote:
> 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.
> 
> [...]

Applied to the vfs-7.0.leases branch of the vfs/vfs.git tree.
Patches in the vfs-7.0.leases branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs-7.0.leases

[01/24] fs: add setlease to generic_ro_fops and read-only filesystem directory operations
        https://git.kernel.org/vfs/vfs/c/ca4388bf1d9e
[02/24] affs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/663cdef61a27
[03/24] btrfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/f9688474e413
[04/24] erofs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/f8902d3df893
[05/24] ext2: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/ccdc2e0569f5
[06/24] ext4: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/20747a2a29c6
[07/24] exfat: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/b8ca02667552
[08/24] f2fs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/9e2ac6ddb397
[09/24] fat: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/a9acc8422ffb
[10/24] gfs2: add a setlease file operation
        https://git.kernel.org/vfs/vfs/c/3b514c333390
[11/24] jffs2: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/c275e6e7c085
[12/24] jfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/7dd596bb35e5
[13/24] nilfs2: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/f46bb13dc5d9
[14/24] ntfs3: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/6aaa1d6337b5
[15/24] ocfs2: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/f15d3150279d
[16/24] orangefs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/136b43aa4b16
[17/24] overlayfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/94a3f60af5dc
[18/24] squashfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/dfd8676efe43
[19/24] tmpfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/f5a3446be277
[20/24] udf: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/dbe8d57d1483
[21/24] ufs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/545b4144d804
[22/24] xfs: add setlease file operation
        https://git.kernel.org/vfs/vfs/c/6163b5da2f5e
[23/24] filelock: default to returning -EINVAL when ->setlease operation is NULL
        https://git.kernel.org/vfs/vfs/c/2b10994be716
[24/24] fs: remove simple_nosetlease()
        https://git.kernel.org/vfs/vfs/c/51e49111c00b