Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

biodone2: if the buffer is async or has a callback method, assert that 

there are no waiters on b_done (threads in biowait()).
This commit is contained in:
ad 2008-05-31 13:41:44 +00:00
parent 7442154bd9
commit 506130b087
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/kern/vfs_bio.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: vfs_bio.c,v 1.200 2008/05/31 13:26:29 ad Exp $ */
/* $NetBSD: vfs_bio.c,v 1.201 2008/05/31 13:41:44 ad Exp $ */
/*-
* Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
@ -107,7 +107,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.200 2008/05/31 13:26:29 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.201 2008/05/31 13:41:44 ad Exp $");
#include "fs_ffs.h"
#include "opt_bufcache.h"
@ -1511,6 +1511,7 @@ biodone2(buf_t *bp)
if ((callout = bp->b_iodone) != NULL) {
/* Note callout done, then call out. */
KASSERT(!cv_has_waiters(&bp->b_done));
KERNEL_LOCK(1, NULL); /* XXXSMP */
bp->b_iodone = NULL;
mutex_exit(bp->b_objlock);
@ -1518,6 +1519,7 @@ biodone2(buf_t *bp)
KERNEL_UNLOCK_ONE(NULL); /* XXXSMP */
} else if (ISSET(bp->b_flags, B_ASYNC)) {
/* If async, release. */
KASSERT(!cv_has_waiters(&bp->b_done));
mutex_exit(bp->b_objlock);
brelse(bp, 0);
} else {