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Fix locking protocol to avoid a panic on extattrctl stop and on umount.

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This commit is contained in:
manu 2011-07-07 14:56:45 +00:00
parent f7b4f45c18
commit 9f214ee2a6
1 changed files with 3 additions and 2 deletions
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5
sys/ufs/ufs/ufs_extattr.c
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@ -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 @@ ufs_extattr_uepm_unlock(struct ufsmount *ump)
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);
}