This is a note to let you know that I've just added the patch titled ceph: don't allow setlease on cephfs to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ceph-don-t-allow-setlease-on-cephfs.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5f5914405c28d9291dd33dfed6a967deb621a740 Author: Jeff Layton <jlayton@xxxxxxxxxx> Date: Thu Aug 20 11:00:26 2020 -0400 ceph: don't allow setlease on cephfs [ Upstream commit 496ceaf12432b3d136dcdec48424312e71359ea7 ] Leases don't currently work correctly on kcephfs, as they are not broken when caps are revoked. They could eventually be implemented similarly to how we did them in libcephfs, but for now don't allow them. [ idryomov: no need for simple_nosetlease() in ceph_dir_fops and ceph_snapdir_fops ] Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> Reviewed-by: Ilya Dryomov <idryomov@xxxxxxxxx> Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/ceph/file.c b/fs/ceph/file.c index faca455bd3c69..4ce2752c8b71c 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1819,6 +1819,7 @@ const struct file_operations ceph_file_fops = { .mmap = ceph_mmap, .fsync = ceph_fsync, .lock = ceph_lock, + .setlease = simple_nosetlease, .flock = ceph_flock, .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write,