5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jeff Layton <jlayton@xxxxxxxxxx>
[ Upstream commit 7a84602297d36617dbdadeba55a2567031e5165b ]
9p is a remote network protocol, and it doesn't support asynchronous
notifications from the server. Ensure that we don't hand out any leases
since we can't guarantee they'll be broken when a file's contents
change.
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Eric Van Hensbergen <ericvh@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/9p/vfs_file.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 7437b185fa8eb..0c84d414660ca 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -660,6 +660,7 @@ const struct file_operations v9fs_file_operations = {
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fsync = v9fs_file_fsync,
+ .setlease = simple_nosetlease,
};
const struct file_operations v9fs_file_operations_dotl = {
@@ -701,4 +702,5 @@ const struct file_operations v9fs_mmap_file_operations_dotl = {
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fsync = v9fs_file_fsync_dotl,
+ .setlease = simple_nosetlease,
};
--
2.43.0
