From a6c8be39c9eb51c418d350c85a034e37ef1970d2 Mon Sep 17 00:00:00 2001
From: Kirk McKusick <mckusick@FreeBSD.org>
Date: Wed, 26 Jul 2000 23:10:02 +0000
Subject: [PATCH] Disable LK_CANRECURSE on buffer locks. The recusion is needed
 only for certain uses of snapshots and currently appears to be causing some
 other problems. So for now, I am reverting to the old semantics until I have
 had time to investigate what is causing the other problems.

---
 sys/sys/buf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/sys/buf.h b/sys/sys/buf.h
index 4cb2bbadab3..42424d64522 100644
--- a/sys/sys/buf.h
+++ b/sys/sys/buf.h
@@ -237,7 +237,7 @@ extern char *buf_wmesg;			/* Default buffer lock message */
  * Initialize a lock.
  */
 #define BUF_LOCKINIT(bp) \
-	lockinit(&(bp)->b_lock, PRIBIO + 4, buf_wmesg, 0, LK_CANRECURSE)
+	lockinit(&(bp)->b_lock, PRIBIO + 4, buf_wmesg, 0, 0)
 /*
  *
  * Get a lock sleeping non-interruptably until it becomes available.