From 306ab3cb6c6703c989da99cd1f6c7784d710930f Mon Sep 17 00:00:00 2001
From: Hiten Pandya <hmp@dragonflybsd.org>
Date: Sun, 7 Aug 2005 03:17:37 +0000
Subject: [PATCH] Add 'debug.sizeof.buf' sysctl for determining size of struct
 buf on a system.

Declare the _debug_sizeof sysctl in sys/sysctl.h instead of redundantly
declaring in two files.
---
 sys/kern/subr_disk.c | 4 +---
 sys/kern/vfs_bio.c   | 4 +++-
 sys/sys/sysctl.h     | 3 ++-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/sys/kern/subr_disk.c b/sys/kern/subr_disk.c
index d017977d4f..b18295f805 100644
--- a/sys/kern/subr_disk.c
+++ b/sys/kern/subr_disk.c
@@ -77,7 +77,7 @@
  *	@(#)ufs_disksubr.c	8.5 (Berkeley) 1/21/94
  * $FreeBSD: src/sys/kern/subr_disk.c,v 1.20.2.6 2001/10/05 07:14:57 peter Exp $
  * $FreeBSD: src/sys/ufs/ufs/ufs_disksubr.c,v 1.44.2.3 2001/03/05 05:42:19 obrien Exp $
- * $DragonFly: src/sys/kern/subr_disk.c,v 1.15 2005/04/30 23:04:21 swildner Exp $
+ * $DragonFly: src/sys/kern/subr_disk.c,v 1.16 2005/08/07 03:17:37 hmp Exp $
  */
 
 #include <sys/param.h>
@@ -511,8 +511,6 @@ diskpsize(dev_t dev)
 #endif
 }
 
-SYSCTL_DECL(_debug_sizeof);
-
 SYSCTL_INT(_debug_sizeof, OID_AUTO, disklabel, CTLFLAG_RD, 
     0, sizeof(struct disklabel), "sizeof(struct disklabel)");
 
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
index 5e5d4308fb..3104d9b597 100644
--- a/sys/kern/vfs_bio.c
+++ b/sys/kern/vfs_bio.c
@@ -12,7 +12,7 @@
  *		John S. Dyson.
  *
  * $FreeBSD: src/sys/kern/vfs_bio.c,v 1.242.2.20 2003/05/28 18:38:10 alc Exp $
- * $DragonFly: src/sys/kern/vfs_bio.c,v 1.43 2005/08/05 04:54:42 hmp Exp $
+ * $DragonFly: src/sys/kern/vfs_bio.c,v 1.44 2005/08/07 03:17:37 hmp Exp $
  */
 
 /*
@@ -168,6 +168,8 @@ SYSCTL_INT(_vfs, OID_AUTO, buffreekvacnt, CTLFLAG_RD, &buffreekvacnt, 0,
 	"Amount of time KVA space was deallocated in an arbitrary buffer");
 SYSCTL_INT(_vfs, OID_AUTO, bufreusecnt, CTLFLAG_RD, &bufreusecnt, 0,
 	"Amount of time buffer re-use operations were successful");
+SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD, 0, sizeof(struct buf),
+	"sizeof(struct buf)");
 
 #if 0
 /*
diff --git a/sys/sys/sysctl.h b/sys/sys/sysctl.h
index 5b68c1412c..0877164cbf 100644
--- a/sys/sys/sysctl.h
+++ b/sys/sys/sysctl.h
@@ -35,7 +35,7 @@
  *
  *	@(#)sysctl.h	8.1 (Berkeley) 6/2/93
  * $FreeBSD: src/sys/sys/sysctl.h,v 1.81.2.10 2003/05/01 22:48:09 trhodes Exp $
- * $DragonFly: src/sys/sys/sysctl.h,v 1.15 2005/08/06 17:57:59 joerg Exp $
+ * $DragonFly: src/sys/sys/sysctl.h,v 1.16 2005/08/07 03:17:37 hmp Exp $
  */
 
 #ifndef _SYS_SYSCTL_H_
@@ -585,6 +585,7 @@ SYSCTL_DECL(_vm);
 SYSCTL_DECL(_vfs);
 SYSCTL_DECL(_net);
 SYSCTL_DECL(_debug);
+SYSCTL_DECL(_debug_sizeof);
 SYSCTL_DECL(_hw);
 SYSCTL_DECL(_machdep);
 SYSCTL_DECL(_user);
-- 
2.41.0