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-rw-r--r--sys/fs/unionfs/union_vfsops.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/fs/unionfs/union_vfsops.c b/sys/fs/unionfs/union_vfsops.c
index c6586e2..c60b02c 100644
--- a/sys/fs/unionfs/union_vfsops.c
+++ b/sys/fs/unionfs/union_vfsops.c
@@ -290,12 +290,14 @@ unionfs_domount(struct mount *mp)
return (error);
}
+ MNT_ILOCK(mp);
/*
* Check mnt_flag
*/
if ((ump->um_lowervp->v_mount->mnt_flag & MNT_LOCAL) &&
(ump->um_uppervp->v_mount->mnt_flag & MNT_LOCAL))
mp->mnt_flag |= MNT_LOCAL;
+ MNT_IUNLOCK(mp);
/*
* Get new fsid
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