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No need to detach (and return EBUSY) if dk_openmask is non-zero.

This commit is contained in:
hannken 2014-03-13 10:22:35 +00:00
parent 7f42001b43
commit e331e1e077
1 changed files with 6 additions and 2 deletions
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8
sys/dev/md.c
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@ -1,4 +1,4 @@
/* $NetBSD: md.c,v 1.67 2012/06/30 10:52:31 tsutsui Exp $ */ /* $NetBSD: md.c,v 1.68 2014/03/13 10:22:35 hannken Exp $ */
/* /*
* Copyright (c) 1995 Gordon W. Ross, Leo Weppelman. * Copyright (c) 1995 Gordon W. Ross, Leo Weppelman.
@ -40,7 +40,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: md.c,v 1.67 2012/06/30 10:52:31 tsutsui Exp $"); __KERNEL_RCSID(0, "$NetBSD: md.c,v 1.68 2014/03/13 10:22:35 hannken Exp $");
#ifdef _KERNEL_OPT #ifdef _KERNEL_OPT
#include "opt_md.h" #include "opt_md.h"
@ -340,6 +340,10 @@ mdclose(dev_t dev, int flag, int fmt, struct lwp *l)
break; break;
} }
dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask;
if (dk->dk_openmask != 0) {
mutex_exit(&dk->dk_openlock);
return 0;
}
mutex_exit(&dk->dk_openlock); mutex_exit(&dk->dk_openlock);