From e03b612d878aadce8cc9d3d1385c1317a6005929 Mon Sep 17 00:00:00 2001
From: David Greenman <dg@FreeBSD.org>
Date: Sun, 23 Oct 1994 20:52:11 +0000
Subject: [PATCH] Only VM_WAIT if curproc != pageproc. A deadlock can occur
 otherwise.

Submitted by:	John Dyson
---
 sys/kern/vfs_bio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
index ecfc18c28959..c705741bec42 100644
--- a/sys/kern/vfs_bio.c
+++ b/sys/kern/vfs_bio.c
@@ -16,7 +16,7 @@
  * 4. Modifications may be freely made to this file if the above conditions
  *    are met.
  *
- * $Id: vfs_bio.c,v 1.14 1994/10/05 09:48:21 davidg Exp $
+ * $Id: vfs_bio.c,v 1.15 1994/10/18 06:55:40 davidg Exp $
  */
 
 #include <sys/param.h>
@@ -706,8 +706,8 @@ vm_hold_load_pages(vm_offset_t froma, vm_offset_t toa) {
 			}
 		}
 #endif
-		if (cnt.v_free_count <=
-			cnt.v_free_reserved + (toa-froma) / PAGE_SIZE) {
+		if ((curproc != pageproc) && (cnt.v_free_count <=
+			cnt.v_free_reserved + (toa-froma) / PAGE_SIZE)) {
 			VM_WAIT;
 			goto tryagain;
 		}