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Fix a race where the backing store thread runs (and exits immediately)

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before kthread_create() returns.
This commit is contained in:
hannken 2009-10-13 12:37:19 +00:00
parent da2c7e7359
commit 64747bca1d
1 changed files with 7 additions and 6 deletions
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13
sys/dev/fss.c
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@ -1,4 +1,4 @@
/* $NetBSD: fss.c,v 1.63 2009/06/29 05:08:17 dholland Exp $ */
/* $NetBSD: fss.c,v 1.64 2009/10/13 12:37:19 hannken Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fss.c,v 1.63 2009/06/29 05:08:17 dholland Exp $");
__KERNEL_RCSID(0, "$NetBSD: fss.c,v 1.64 2009/10/13 12:37:19 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -446,11 +446,12 @@ fss_softc_alloc(struct fss_softc *sc)
sc->sc_indir_data = NULL;
}
if ((error = kthread_create(PRI_BIO, 0, NULL, fss_bs_thread, sc,
&sc->sc_bs_lwp, device_xname(sc->sc_dev))) != 0)
return error;
sc->sc_flags |= FSS_BS_THREAD;
if ((error = kthread_create(PRI_BIO, 0, NULL, fss_bs_thread, sc,
&sc->sc_bs_lwp, device_xname(sc->sc_dev))) != 0) {
sc->sc_flags &= ~FSS_BS_THREAD;
return error;
}
disk_attach(sc->sc_dkdev);