From 547af12dcd43851a4894ffc3c60e381ab9f0f5e7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Aug 2025 02:06:57 -0400 Subject: [PATCH] fs/namespace.c: allow to drop vfsmount references via __free(mntput) Note that just as path_put, it should never be done in scope of namespace_sem, be it shared or exclusive. Reviewed-by: Christian Brauner Signed-off-by: Al Viro --- fs/namespace.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/namespace.c b/fs/namespace.c index fcea65587ff91..767ab751ee2a3 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -88,6 +88,8 @@ DEFINE_LOCK_GUARD_0(namespace_excl, namespace_lock(), namespace_unlock()) DEFINE_LOCK_GUARD_0(namespace_shared, down_read(&namespace_sem), up_read(&namespace_sem)) +DEFINE_FREE(mntput, struct vfsmount *, if (!IS_ERR(_T)) mntput(_T)) + #ifdef CONFIG_FSNOTIFY LIST_HEAD(notify_list); /* protected by namespace_sem */ #endif -- 2.47.3