Module Name: src
Committed By: pgoyette
Date: Thu May 25 02:28:07 UTC 2017
Modified Files:
src/sys/kern: vfs_bio.c
Log Message:
When logging a history record for biowait(), include the return address
as a parameter, to identify to which of the many calls to biowait() the
record refers.
To generate a diff of this commit:
cvs rdiff -u -r1.272 -r1.273 src/sys/kern/vfs_bio.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/kern/vfs_bio.c
diff -u src/sys/kern/vfs_bio.c:1.272 src/sys/kern/vfs_bio.c:1.273
--- src/sys/kern/vfs_bio.c:1.272 Wed Apr 5 20:15:49 2017
+++ src/sys/kern/vfs_bio.c Thu May 25 02:28:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: vfs_bio.c,v 1.272 2017/04/05 20:15:49 jdolecek Exp $ */
+/* $NetBSD: vfs_bio.c,v 1.273 2017/05/25 02:28:07 pgoyette Exp $ */
/*-
* Copyright (c) 2007, 2008, 2009 The NetBSD Foundation, Inc.
@@ -123,7 +123,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.272 2017/04/05 20:15:49 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_bio.c,v 1.273 2017/05/25 02:28:07 pgoyette Exp $");
#ifdef _KERNEL_OPT
#include "opt_bufcache.h"
@@ -1530,8 +1530,8 @@ biowait(buf_t *bp)
mutex_enter(bp->b_objlock);
- BIOHIST_CALLARGS(biohist, "bp=%p, oflags=0x%x",
- bp, bp->b_oflags, 0, 0);
+ BIOHIST_CALLARGS(biohist, "bp=%p, oflags=0x%x, ret_addr %p",
+ bp, bp->b_oflags, __builtin_return_address(0), 0);
while (!ISSET(bp->b_oflags, BO_DONE | BO_DELWRI)) {
BIOHIST_LOG(biohist, "waiting bp=%p", bp, 0, 0, 0);
