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[src/trunk]: src/sys/ufs/ufs Fix locking protocol to avoid a panic on extattr...
details: https://anonhg.NetBSD.org/src/rev/c51cc49a2737
branches: trunk
changeset: 767053:c51cc49a2737
user: manu <manu%NetBSD.org@localhost>
date: Thu Jul 07 14:56:45 2011 +0000
description:
Fix locking protocol to avoid a panic on extattrctl stop and on umount.
diffstat:
sys/ufs/ufs/ufs_extattr.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diffs (26 lines):
diff -r 4cdb13d2d104 -r c51cc49a2737 sys/ufs/ufs/ufs_extattr.c
--- a/sys/ufs/ufs/ufs_extattr.c Thu Jul 07 14:29:59 2011 +0000
+++ b/sys/ufs/ufs/ufs_extattr.c Thu Jul 07 14:56:45 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ufs_extattr.c,v 1.34 2011/07/04 08:07:32 manu Exp $ */
+/* $NetBSD: ufs_extattr.c,v 1.35 2011/07/07 14:56:45 manu Exp $ */
/*-
* Copyright (c) 1999-2002 Robert N. M. Watson
@@ -48,7 +48,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ufs_extattr.c,v 1.34 2011/07/04 08:07:32 manu Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ufs_extattr.c,v 1.35 2011/07/07 14:56:45 manu Exp $");
#ifdef _KERNEL_OPT
#include "opt_ffs.h"
@@ -133,6 +133,7 @@
if (ump->um_extattr.uepm_lockcnt != 0) {
KASSERT(mutex_owned(&ump->um_extattr.uepm_lock));
ump->um_extattr.uepm_lockcnt--;
+ return;
}
mutex_exit(&ump->um_extattr.uepm_lock);
}
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