Module Name: src
Committed By: hannken
Date: Mon Jul 11 08:34:01 UTC 2011
Modified Files:
src/sys/miscfs/genfs: layer_vnops.c
Log Message:
Layer_fsync(): when syncing a device node call spec_fsync() to clean the
layer node before descending to the lower file system.
Adresses PR kern/38762 panic: vwakeup: neg numoutput
To generate a diff of this commit:
cvs rdiff -u -r1.49 -r1.50 src/sys/miscfs/genfs/layer_vnops.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/miscfs/genfs/layer_vnops.c
diff -u src/sys/miscfs/genfs/layer_vnops.c:1.49 src/sys/miscfs/genfs/layer_vnops.c:1.50
--- src/sys/miscfs/genfs/layer_vnops.c:1.49 Mon Jul 11 08:27:38 2011
+++ src/sys/miscfs/genfs/layer_vnops.c Mon Jul 11 08:34:01 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: layer_vnops.c,v 1.49 2011/07/11 08:27:38 hannken Exp $ */
+/* $NetBSD: layer_vnops.c,v 1.50 2011/07/11 08:34:01 hannken Exp $ */
/*
* Copyright (c) 1999 National Aeronautics & Space Administration
@@ -170,7 +170,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: layer_vnops.c,v 1.49 2011/07/11 08:27:38 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: layer_vnops.c,v 1.50 2011/07/11 08:34:01 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -186,6 +186,7 @@
#include <miscfs/genfs/layer.h>
#include <miscfs/genfs/layer_extern.h>
#include <miscfs/genfs/genfs.h>
+#include <miscfs/specfs/specdev.h>
/*
* This is the 08-June-99 bypass routine, based on the 10-Apr-92 bypass
@@ -529,10 +530,16 @@
off_t offhi;
struct lwp *a_l;
} */ *ap = v;
+ int error;
if (ap->a_flags & FSYNC_RECLAIM) {
return 0;
}
+ if (ap->a_vp->v_type == VBLK || ap->a_vp->v_type == VCHR) {
+ error = spec_fsync(v);
+ if (error)
+ return error;
+ }
return LAYERFS_DO_BYPASS(ap->a_vp, ap);
}
