store a i/o priority hint in struct buf for buffer queue discipline.
This commit is contained in:
yamt
parent
2a3954efe6
commit
7266a95907
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@ -1,4 +1,4 @@
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/* $NetBSD: wd.c,v 1.272 2003/12/14 05:38:20 thorpej Exp $ */
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/* $NetBSD: wd.c,v 1.273 2004/01/10 14:39:50 yamt Exp $ */
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/*
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* Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved.
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@ -66,7 +66,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.272 2003/12/14 05:38:20 thorpej Exp $");
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__KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.273 2004/01/10 14:39:50 yamt Exp $");
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#ifndef WDCDEBUG
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#define WDCDEBUG
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@ -684,6 +684,9 @@ __wdstart(struct wd_softc *wd, struct buf *bp)
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/* Put ptr to orig buf in b_private and use new buf */
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nbp->b_private = bp;
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BIO_COPYPRIO(nbp, bp);
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bp = nbp;
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: ccd.c,v 1.93 2003/10/26 23:42:57 chs Exp $ */
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/* $NetBSD: ccd.c,v 1.94 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998, 1999 The NetBSD Foundation, Inc.
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@ -125,7 +125,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ccd.c,v 1.93 2003/10/26 23:42:57 chs Exp $");
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__KERNEL_RCSID(0, "$NetBSD: ccd.c,v 1.94 2004/01/10 14:39:50 yamt Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -870,6 +870,8 @@ ccdbuffer(cs, bp, bn, addr, bcount)
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cbp->cb_sc = cs;
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cbp->cb_comp = ccdisk;
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BIO_COPYPRIO(&cbp->cb_buf, bp);
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#ifdef DEBUG
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if (ccddebug & CCDB_IO)
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printf(" dev 0x%x(u%lu): cbp %p bn %" PRId64 " addr %p"
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@ -1,4 +1,4 @@
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/* $NetBSD: cgd.c,v 1.12 2003/06/29 22:29:58 fvdl Exp $ */
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/* $NetBSD: cgd.c,v 1.13 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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@ -37,7 +37,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cgd.c,v 1.12 2003/06/29 22:29:58 fvdl Exp $");
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__KERNEL_RCSID(0, "$NetBSD: cgd.c,v 1.13 2004/01/10 14:39:50 yamt Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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@ -320,6 +320,8 @@ cgdstart(struct dk_softc *dksc, struct buf *bp)
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cbp->cb_obp = bp;
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cbp->cb_sc = cs;
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BIO_COPYPRIO(&cbp->cb_buf, bp);
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if ((cbp->cb_buf.b_flags & B_READ) == 0)
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cbp->cb_buf.b_vp->v_numoutput++;
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VOP_STRATEGY(&cbp->cb_buf);
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@ -1,4 +1,4 @@
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/* $NetBSD: rf_netbsdkintf.c,v 1.171 2004/01/04 21:06:04 oster Exp $ */
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/* $NetBSD: rf_netbsdkintf.c,v 1.172 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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@ -146,7 +146,7 @@
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***********************************************************/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.171 2004/01/04 21:06:04 oster Exp $");
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__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.172 2004/01/10 14:39:50 yamt Exp $");
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#include <sys/param.h>
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#include <sys/errno.h>
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@ -1830,6 +1830,8 @@ rf_DispatchKernelIO(RF_DiskQueue_t *queue, RF_DiskQueueData_t *req)
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raidbp->rf_obp = bp;
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raidbp->req = req;
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BIO_COPYPRIO(&raidbp->rf_buf, bp);
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switch (req->type) {
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case RF_IO_TYPE_NOP: /* used primarily to unlock a locked queue */
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/* XXX need to do something extra here.. */
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@ -1,4 +1,4 @@
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/* $NetBSD: cd.c,v 1.198 2003/11/10 08:51:52 wiz Exp $ */
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/* $NetBSD: cd.c,v 1.199 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1998, 2001, 2003 The NetBSD Foundation, Inc.
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@ -54,7 +54,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: cd.c,v 1.198 2003/11/10 08:51:52 wiz Exp $");
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__KERNEL_RCSID(0, "$NetBSD: cd.c,v 1.199 2004/01/10 14:39:50 yamt Exp $");
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#include "rnd.h"
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@ -722,6 +722,9 @@ cdstrategy(bp)
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/* Put ptr to orig buf in b_private and use new buf */
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nbp->b_private = bp;
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BIO_COPYPRIO(nbp, bp);
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bp = nbp;
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} else {
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@ -1,4 +1,4 @@
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/* $NetBSD: vnd.c,v 1.104 2003/10/19 07:41:19 scw Exp $ */
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/* $NetBSD: vnd.c,v 1.105 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
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@ -133,7 +133,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.104 2003/10/19 07:41:19 scw Exp $");
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__KERNEL_RCSID(0, "$NetBSD: vnd.c,v 1.105 2004/01/10 14:39:50 yamt Exp $");
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#if defined(_KERNEL_OPT)
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#include "fs_nfs.h"
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@ -563,6 +563,8 @@ vndstrategy(bp)
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nbp->vb_xfer = vnx;
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BIO_COPYPRIO(&nbp->vb_buf, bp);
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/*
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* Just sort by block number
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*/
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@ -1,4 +1,4 @@
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/* $NetBSD: kern_physio.c,v 1.57 2003/08/07 16:31:47 agc Exp $ */
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/* $NetBSD: kern_physio.c,v 1.58 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1990, 1993
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@ -71,7 +71,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.57 2003/08/07 16:31:47 agc Exp $");
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__KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.58 2004/01/10 14:39:50 yamt Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -208,6 +208,8 @@ physio(strategy, bp, dev, flags, minphys, uio)
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}
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vmapbuf(bp, todo);
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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/* [call strategy to start the transfer] */
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(*strategy)(bp);
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@ -1,4 +1,4 @@
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/* $NetBSD: vfs_bio.c,v 1.107 2004/01/09 19:01:01 thorpej Exp $ */
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/* $NetBSD: vfs_bio.c,v 1.108 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1989, 1993
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@ -81,7 +81,7 @@
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#include "opt_softdep.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.107 2004/01/09 19:01:01 thorpej Exp $");
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__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.108 2004/01/10 14:39:50 yamt Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -502,6 +502,10 @@ bio_doread(struct vnode *vp, daddr_t blkno, int size, struct ucred *cred,
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if (!ISSET(bp->b_flags, (B_DONE | B_DELWRI))) {
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/* Start I/O for the buffer. */
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SET(bp->b_flags, B_READ | async);
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if (async)
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BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
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else
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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VOP_STRATEGY(bp);
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/* Pay for the read. */
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@ -642,6 +646,11 @@ bwrite(struct buf *bp)
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simple_unlock(&bp->b_interlock);
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splx(s);
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if (sync)
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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else
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BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
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VOP_STRATEGY(bp);
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if (sync) {
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@ -978,6 +987,7 @@ start:
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} else {
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allocbuf(bp, size, preserve);
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}
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BIO_SETPRIO(bp, BPRIO_DEFAULT);
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return (bp);
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}
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@ -1273,6 +1283,7 @@ biodone(struct buf *bp)
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if (ISSET(bp->b_flags, B_DONE))
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panic("biodone already");
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SET(bp->b_flags, B_DONE); /* note that it's done */
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BIO_SETPRIO(bp, BPRIO_DEFAULT);
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if (LIST_FIRST(&bp->b_dep) != NULL && bioops.io_complete)
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(*bioops.io_complete)(bp);
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@ -1,4 +1,4 @@
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/* $NetBSD: genfs_vnops.c,v 1.83 2003/11/27 07:58:02 pk Exp $ */
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/* $NetBSD: genfs_vnops.c,v 1.84 2004/01/10 14:39:50 yamt Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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@ -31,7 +31,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: genfs_vnops.c,v 1.83 2003/11/27 07:58:02 pk Exp $");
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__KERNEL_RCSID(0, "$NetBSD: genfs_vnops.c,v 1.84 2004/01/10 14:39:50 yamt Exp $");
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#include "opt_nfsserver.h"
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@ -822,6 +822,10 @@ genfs_getpages(void *v)
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"bp %p offset 0x%x bcount 0x%x blkno 0x%x",
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bp, offset, iobytes, bp->b_blkno);
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if (async)
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BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
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else
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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VOP_STRATEGY(bp);
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}
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@ -1489,6 +1493,12 @@ genfs_gop_write(struct vnode *vp, struct vm_page **pgs, int npages, int flags)
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UVMHIST_LOG(ubchist,
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"vp %p offset 0x%x bcount 0x%x blkno 0x%x",
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vp, offset, bp->b_bcount, bp->b_blkno);
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if (curproc == uvm.pagedaemon_proc)
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BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
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else if (async)
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BIO_SETPRIO(bp, BPRIO_TIMENONCRITICAL);
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else
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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VOP_STRATEGY(bp);
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}
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if (skipbytes) {
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@ -1,4 +1,4 @@
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/* $NetBSD: buf.h,v 1.68 2003/12/30 20:44:16 thorpej Exp $ */
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/* $NetBSD: buf.h,v 1.69 2004/01/10 14:39:50 yamt Exp $ */
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/*-
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* Copyright (c) 1999, 2000 The NetBSD Foundation, Inc.
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@ -153,6 +153,7 @@ struct buf {
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struct simplelock b_interlock; /* Lock for b_flags changes */
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volatile long b_flags; /* B_* flags. */
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int b_error; /* Errno value. */
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int b_prio; /* Hint for buffer queue discipline. */
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long b_bufsize; /* Allocated buffer size. */
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long b_bcount; /* Valid bytes in buffer. */
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long b_resid; /* Remaining I/O. */
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@ -197,6 +198,7 @@ struct buf {
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do { \
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LIST_INIT(&(bp)->b_dep); \
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simple_lock_init(&(bp)->b_interlock); \
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BIO_SETPRIO((bp), BPRIO_DEFAULT); \
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} while (/*CONSTCOND*/0)
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/*
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@ -265,6 +267,16 @@ do { \
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#ifdef _KERNEL
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#define BIO_GETPRIO(bp) ((bp)->b_prio)
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#define BIO_SETPRIO(bp, prio) (bp)->b_prio = (prio)
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#define BIO_COPYPRIO(bp1, bp2) BIO_SETPRIO(bp1, BIO_GETPRIO(bp2))
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#define BPRIO_NPRIO 3
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#define BPRIO_TIMECRITICAL 2
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#define BPRIO_TIMELIMITED 1
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#define BPRIO_TIMENONCRITICAL 0
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#define BPRIO_DEFAULT BPRIO_TIMELIMITED
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extern struct bio_ops bioops;
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extern u_int nbuf; /* The number of buffer headers */
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extern struct buf *buf; /* The buffer headers. */
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@ -1,4 +1,4 @@
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/* $NetBSD: ffs_inode.c,v 1.60 2003/08/07 16:34:30 agc Exp $ */
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/* $NetBSD: ffs_inode.c,v 1.61 2004/01/10 14:39:51 yamt Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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@ -32,7 +32,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ffs_inode.c,v 1.60 2003/08/07 16:34:30 agc Exp $");
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__KERNEL_RCSID(0, "$NetBSD: ffs_inode.c,v 1.61 2004/01/10 14:39:51 yamt Exp $");
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#if defined(_KERNEL_OPT)
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#include "opt_ffs.h"
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@ -563,6 +563,7 @@ ffs_indirtrunc(ip, lbn, dbn, lastbn, level, countp)
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if (bp->b_bcount > bp->b_bufsize)
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panic("ffs_indirtrunc: bad buffer size");
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bp->b_blkno = dbn;
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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VOP_STRATEGY(bp);
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error = biowait(bp);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: lfs_segment.c,v 1.146 2003/12/17 10:38:39 yamt Exp $ */
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/* $NetBSD: lfs_segment.c,v 1.147 2004/01/10 14:39:51 yamt Exp $ */
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/*-
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* Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
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@ -67,7 +67,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: lfs_segment.c,v 1.146 2003/12/17 10:38:39 yamt Exp $");
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__KERNEL_RCSID(0, "$NetBSD: lfs_segment.c,v 1.147 2004/01/10 14:39:51 yamt Exp $");
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#define ivndebug(vp,str) printf("ino %d: %s\n",VTOI(vp)->i_number,(str))
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@ -2000,6 +2000,10 @@ lfs_writeseg(struct lfs *fs, struct segment *sp)
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bpp++;
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i--;
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}
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if (fs->lfs_sp->seg_flags & SEGM_SYNC)
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BIO_SETPRIO(cbp, BPRIO_TIMECRITICAL);
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else
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BIO_SETPRIO(cbp, BPRIO_TIMELIMITED);
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s = splbio();
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V_INCR_NUMOUTPUT(devvp);
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splx(s);
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@ -2063,6 +2067,10 @@ lfs_writesuper(struct lfs *fs, daddr_t daddr)
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bp->b_flags &= ~(B_DONE | B_ERROR | B_READ | B_DELWRI);
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bp->b_iodone = lfs_supercallback;
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if (fs->lfs_sp != NULL && fs->lfs_sp->seg_flags & SEGM_SYNC)
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BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
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else
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BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
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vop_strategy_a.a_desc = VDESC(vop_strategy);
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vop_strategy_a.a_bp = bp;
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curproc->p_stats->p_ru.ru_oublock++;
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@ -1,4 +1,4 @@
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/* $NetBSD: ufs_bmap.c,v 1.25 2003/08/07 16:34:44 agc Exp $ */
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/* $NetBSD: ufs_bmap.c,v 1.26 2004/01/10 14:39:51 yamt Exp $ */
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/*
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* Copyright (c) 1989, 1991, 1993
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@ -37,7 +37,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ufs_bmap.c,v 1.25 2003/08/07 16:34:44 agc Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: ufs_bmap.c,v 1.26 2004/01/10 14:39:51 yamt Exp $");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
|
|
@ -243,6 +243,7 @@ ufs_bmaparray(vp, bn, bnp, ap, nump, runp, is_sequential)
|
|||
trace(TR_BREADMISS, pack(vp, size), metalbn);
|
||||
bp->b_blkno = blkptrtodb(ump, daddr);
|
||||
bp->b_flags |= B_READ;
|
||||
BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
|
||||
VOP_STRATEGY(bp);
|
||||
curproc->p_stats->p_ru.ru_inblock++; /* XXX */
|
||||
if ((error = biowait(bp)) != 0) {
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: uvm_swap.c,v 1.82 2003/08/28 13:12:20 pk Exp $ */
|
||||
/* $NetBSD: uvm_swap.c,v 1.83 2004/01/10 14:39:51 yamt Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1995, 1996, 1997 Matthew R. Green
|
||||
|
|
@ -32,7 +32,7 @@
|
|||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: uvm_swap.c,v 1.82 2003/08/28 13:12:20 pk Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: uvm_swap.c,v 1.83 2004/01/10 14:39:51 yamt Exp $");
|
||||
|
||||
#include "fs_nfs.h"
|
||||
#include "opt_uvmhist.h"
|
||||
|
|
@ -1749,6 +1749,12 @@ uvm_swap_io(pps, startslot, npages, flags)
|
|||
bp->b_flags |= B_CALL;
|
||||
bp->b_iodone = uvm_aio_biodone;
|
||||
UVMHIST_LOG(pdhist, "doing async!", 0, 0, 0, 0);
|
||||
if (curproc == uvm.pagedaemon_proc)
|
||||
BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
|
||||
else
|
||||
BIO_SETPRIO(bp, BPRIO_TIMELIMITED);
|
||||
} else {
|
||||
BIO_SETPRIO(bp, BPRIO_TIMECRITICAL);
|
||||
}
|
||||
UVMHIST_LOG(pdhist,
|
||||
"about to start io: data = %p blkno = 0x%x, bcount = %ld",
|
||||
|
|
|
|||
Loading…
Reference in New Issue