git: 208ebc381f51 - stable/12 - tmpfs_free_tmp(): explicitly assert that tmp is locked

[Konstantin Belousov]

The branch stable/12 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=208ebc381f51f80a39489e3a1b5fa4e704ac9359

commit 208ebc381f51f80a39489e3a1b5fa4e704ac9359
Author:     Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-01-05 18:53:45 +0000
Commit:     Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-01-17 04:45:24 +0000

    tmpfs_free_tmp(): explicitly assert that tmp is locked
    
    (cherry picked from commit 9f200bc47b5d8445d91d51f6dfd6af0f1fbbe354)
---
 sys/fs/tmpfs/tmpfs_vfsops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/fs/tmpfs/tmpfs_vfsops.c b/sys/fs/tmpfs/tmpfs_vfsops.c
index 942d2d499b26..c9c211dca002 100644
--- a/sys/fs/tmpfs/tmpfs_vfsops.c
+++ b/sys/fs/tmpfs/tmpfs_vfsops.c
@@ -529,8 +529,9 @@ tmpfs_unmount(struct mount *mp, int mntflags)
 void
 tmpfs_free_tmp(struct tmpfs_mount *tmp)
 {
-
+	TMPFS_MP_ASSERT_LOCKED(tmp);
 	MPASS(tmp->tm_refcount > 0);
+
 	tmp->tm_refcount--;
 	if (tmp->tm_refcount > 0) {
 		TMPFS_UNLOCK(tmp);