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Revert previous. No performance gain worth the potential headaches 

with buffers in these contexts.
This commit is contained in:
ad 2019-12-08 19:52:37 +00:00
parent 51eccb6fe4
commit 2210aab771
3 changed files with 9 additions and 9 deletions
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6
sys/dev/qbus/ts.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: ts.c,v 1.32 2019/12/08 19:23:51 ad Exp $ */ /* $NetBSD: ts.c,v 1.33 2019/12/08 19:52:37 ad Exp $ */
/*- /*-
* Copyright (c) 1991 The Regents of the University of California. * Copyright (c) 1991 The Regents of the University of California.
@ -66,7 +66,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ts.c,v 1.32 2019/12/08 19:23:51 ad Exp $"); __KERNEL_RCSID(0, "$NetBSD: ts.c,v 1.33 2019/12/08 19:52:37 ad Exp $");
#undef TSDEBUG #undef TSDEBUG
@ -390,7 +390,7 @@ tscommand(struct ts_softc *sc, dev_t dev, int cmd, int count)
return; return;
biowait(bp); biowait(bp);
mutex_enter(&bufcache_lock); mutex_enter(&bufcache_lock);
cv_signal(&bp->b_busy); cv_broadcast(&bp->b_busy);
bp->b_cflags = 0; bp->b_cflags = 0;
mutex_exit(&bufcache_lock); mutex_exit(&bufcache_lock);
} }

6
sys/kern/kern_physio.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_physio.c,v 1.96 2019/12/08 19:23:51 ad Exp $ */ /* $NetBSD: kern_physio.c,v 1.97 2019/12/08 19:52:37 ad Exp $ */
/*- /*-
* Copyright (c) 1982, 1986, 1990, 1993 * Copyright (c) 1982, 1986, 1990, 1993
@ -71,7 +71,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.96 2019/12/08 19:23:51 ad Exp $"); __KERNEL_RCSID(0, "$NetBSD: kern_physio.c,v 1.97 2019/12/08 19:52:37 ad Exp $");
#include <sys/param.h> #include <sys/param.h>
#include <sys/systm.h> #include <sys/systm.h>
@ -432,7 +432,7 @@ done_locked:
obp->b_cflags &= ~(BC_BUSY | BC_WANTED); obp->b_cflags &= ~(BC_BUSY | BC_WANTED);
obp->b_flags &= ~(B_PHYS | B_RAW); obp->b_flags &= ~(B_PHYS | B_RAW);
obp->b_iodone = NULL; obp->b_iodone = NULL;
cv_signal(&obp->b_busy); cv_broadcast(&obp->b_busy);
mutex_exit(&bufcache_lock); mutex_exit(&bufcache_lock);
} }

6
sys/ufs/lfs/lfs_segment.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: lfs_segment.c,v 1.279 2019/12/08 19:24:26 ad Exp $ */ /* $NetBSD: lfs_segment.c,v 1.280 2019/12/08 19:52:37 ad Exp $ */
/*- /*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc. * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
@ -60,7 +60,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: lfs_segment.c,v 1.279 2019/12/08 19:24:26 ad Exp $"); __KERNEL_RCSID(0, "$NetBSD: lfs_segment.c,v 1.280 2019/12/08 19:52:37 ad Exp $");
#ifdef DEBUG #ifdef DEBUG
# define vndebug(vp, str) do { \ # define vndebug(vp, str) do { \
@ -2197,7 +2197,7 @@ lfs_writeseg(struct lfs *fs, struct segment *sp)
if (unbusybp != NULL) { if (unbusybp != NULL) {
unbusybp->b_cflags &= ~BC_BUSY; unbusybp->b_cflags &= ~BC_BUSY;
if (unbusybp->b_cflags & BC_WANTED) if (unbusybp->b_cflags & BC_WANTED)
cv_signal(&bp->b_busy); cv_broadcast(&bp->b_busy);
} }
} }
mutex_exit(&bufcache_lock); mutex_exit(&bufcache_lock);