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Adjustment to previous: if we're going to toss the buffer, then wake 

everybody.
This commit is contained in:
ad 2019-12-08 19:49:25 +00:00
parent 8dc9961386
commit 51eccb6fe4
1 changed files with 4 additions and 3 deletions
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7
sys/kern/vfs_bio.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_bio.c,v 1.280 2019/12/08 19:26:05 ad Exp $ */
/* $NetBSD: vfs_bio.c,v 1.281 2019/12/08 19:49:25 ad Exp $ */
/*-
* Copyright (c) 2007, 2008, 2009, 2019 The NetBSD Foundation, Inc.
@ -123,7 +123,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.280 2019/12/08 19:26:05 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.281 2019/12/08 19:49:25 ad Exp $");
#ifdef _KERNEL_OPT
#include "opt_bufcache.h"
@ -1107,7 +1107,8 @@ brelsel(buf_t *bp, int set)
KASSERT(bp->b_objlock == &buffer_lock);
mutex_exit(bp->b_objlock);
}
/* We want to dispose of the buffer, so wake everybody. */
cv_broadcast(&bp->b_busy);
if (bp->b_bufsize <= 0)
/* no data */
goto already_queued;