Store a reference to the CPU that submitted the I/O request with the
request itself.
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parent
4c793a8fd3
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@ -1,4 +1,4 @@
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/* $NetBSD: dksubr.c,v 1.108 2019/04/21 11:45:08 maya Exp $ */
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/* $NetBSD: dksubr.c,v 1.109 2019/06/28 14:56:46 jmcneill Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998, 1999, 2002, 2008 The NetBSD Foundation, Inc.
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@ -30,7 +30,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dksubr.c,v 1.108 2019/04/21 11:45:08 maya Exp $");
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__KERNEL_RCSID(0, "$NetBSD: dksubr.c,v 1.109 2019/06/28 14:56:46 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -381,6 +381,7 @@ dk_start(struct dk_softc *dksc, struct buf *bp)
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mutex_enter(&dksc->sc_iolock);
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if (bp != NULL) {
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bp->b_ci = curcpu();
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disk_wait(&dksc->sc_dkdev);
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bufq_put(dksc->sc_bufq, bp);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: buf.h,v 1.129 2017/06/08 01:23:01 chs Exp $ */
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/* $NetBSD: buf.h,v 1.130 2019/06/28 14:56:45 jmcneill Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2007, 2008 The NetBSD Foundation, Inc.
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@ -137,6 +137,7 @@ struct buf {
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(volume relative) */
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struct proc *b_proc; /* b: proc if BB_PHYS */
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void *b_saveaddr; /* b: saved b_data for physio */
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struct cpu_info *b_ci; /* b: originating CPU */
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/*
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* b: private data for owner.
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