From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 25 Jun 2025 19:10:52 +0000 (-0400)
Subject: statmount_mnt_basic(): simplify the logics for group id
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7cce099450f8fc597a6ac215440666610895fb7;p=thirdparty%2Flinux.git

statmount_mnt_basic(): simplify the logics for group id

We are holding namespace_sem shared and we have not done any group
id allocations since we grabbed it.  Therefore IS_MNT_SHARED(m)
is equivalent to non-zero m->mnt_group_id.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/namespace.c b/fs/namespace.c
index a75438121417d..c549bd39c210a 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -5298,7 +5298,7 @@ static void statmount_mnt_basic(struct kstatmount *s)
 	s->sm.mnt_parent_id_old = m->mnt_parent->mnt_id;
 	s->sm.mnt_attr = mnt_to_attr_flags(&m->mnt);
 	s->sm.mnt_propagation = mnt_to_propagation_flags(m);
-	s->sm.mnt_peer_group = IS_MNT_SHARED(m) ? m->mnt_group_id : 0;
+	s->sm.mnt_peer_group = m->mnt_group_id;
 	s->sm.mnt_master = IS_MNT_SLAVE(m) ? m->mnt_master->mnt_group_id : 0;
 }