linux-kernel - [PATCH AUTOSEL 4.4 3/5] ceph: don't allow setlease on cephfs

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Message-Id: <20200831153200.1024898-3-sashal@kernel.org>
Date:   Mon, 31 Aug 2020 11:31:58 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Jeff Layton <jlayton@...nel.org>,
        Ilya Dryomov <idryomov@...il.com>,
        Sasha Levin <sashal@...nel.org>, ceph-devel@...r.kernel.org
Subject: [PATCH AUTOSEL 4.4 3/5] ceph: don't allow setlease on cephfs

From: Jeff Layton <jlayton@...nel.org>

[ 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@...nel.org>
Reviewed-by: Ilya Dryomov <idryomov@...il.com>
Signed-off-by: Ilya Dryomov <idryomov@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/ceph/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index c8222bfe1e566..3e6ebe40f06fb 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1433,6 +1433,7 @@ 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,
-- 
2.25.1