From: "Yan, Zheng" <zyan@redhat.com>
Date: Thu, 5 Mar 2020 20:21:03 +0800
Subject: ceph: update i_requested_max_size only when sending cap msg to auth
 mds
Git-commit: 11ba6b9ceeb4e20e0610ad249f9187dba412f787
Patch-mainline: v5.7-rc1
References: jsc#SES-1134

Non-auth mds can't do anything to 'update max' cap message.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 fs/ceph/caps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 02dd2a9bd252..0b3a36310033 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1371,7 +1371,8 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
 	arg.size = inode->i_size;
 	ci->i_reported_size = arg.size;
 	arg.max_size = ci->i_wanted_max_size;
-	ci->i_requested_max_size = arg.max_size;
+	if (cap == ci->i_auth_cap)
+		ci->i_requested_max_size = arg.max_size;
 
 	if (flushing & CEPH_CAP_XATTR_EXCL) {
 		old_blob = __ceph_build_xattrs_blob(ci);