Module Name: src
Committed By: pooka
Date: Wed Aug 5 15:39:57 UTC 2009
Modified Files:
src/sys/ufs/lfs: lfs_vfsops.c
Log Message:
Compensate v_numoutput & nestbuf for lfs's rather peculiar I/O habits.
To generate a diff of this commit:
cvs rdiff -u -r1.276 -r1.277 src/sys/ufs/lfs/lfs_vfsops.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/ufs/lfs/lfs_vfsops.c
diff -u src/sys/ufs/lfs/lfs_vfsops.c:1.276 src/sys/ufs/lfs/lfs_vfsops.c:1.277
--- src/sys/ufs/lfs/lfs_vfsops.c:1.276 Wed Aug 5 14:37:01 2009
+++ src/sys/ufs/lfs/lfs_vfsops.c Wed Aug 5 15:39:57 2009
@@ -1,4 +1,4 @@
-/* $NetBSD: lfs_vfsops.c,v 1.276 2009/08/05 14:37:01 pooka Exp $ */
+/* $NetBSD: lfs_vfsops.c,v 1.277 2009/08/05 15:39:57 pooka Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003, 2007, 2007
@@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lfs_vfsops.c,v 1.276 2009/08/05 14:37:01 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lfs_vfsops.c,v 1.277 2009/08/05 15:39:57 pooka Exp $");
#if defined(_KERNEL_OPT)
#include "opt_lfs.h"
@@ -1756,6 +1756,15 @@
* converted this to use nestiobuf --pooka
*/
bp->b_flags &= ~B_ASYNC;
+ /*
+ * LFS uses VOP_BWRITE instead of VOP_STRATEGY.
+ * Therefore biodone doesn't get called for
+ * the buffer. Therefore decrement the output
+ * counter that nestiobuf_setup() incremented.
+ */
+ mutex_enter(&vp->v_interlock);
+ vp->v_numoutput--;
+ mutex_exit(&vp->v_interlock);
}
/* XXX This is silly ... is this necessary? */
