From ace71d59bf35fa6d911520ec855d0100773422a8 Mon Sep 17 00:00:00 2001
From: jhb <jhb@FreeBSD.org>
Date: Wed, 7 Mar 2001 03:34:55 +0000
Subject: Protect SIGDELSET of p_siglist with the proc lock.

---
 sys/ufs/mfs/mfs_vfsops.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'sys/ufs/mfs/mfs_vfsops.c')

diff --git a/sys/ufs/mfs/mfs_vfsops.c b/sys/ufs/mfs/mfs_vfsops.c
index fb15f4d..c67d61e 100644
--- a/sys/ufs/mfs/mfs_vfsops.c
+++ b/sys/ufs/mfs/mfs_vfsops.c
@@ -366,8 +366,11 @@ mfs_start(mp, flags, p)
 			gotsig = 0;
 			if (dounmount(mp, 0, p) != 0) {
 				sig = CURSIG(p);
-				if (sig)
+				if (sig) {
+					PROC_LOCK(p);
 					SIGDELSET(p->p_siglist, sig);
+					PROC_UNLOCK(p);
+				}
 			}
 		}
 		else if (tsleep((caddr_t)vp, mfs_pri, "mfsidl", 0))
-- 
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