From dfce070d88c9afeca115a00e1f023cf5d70836fc Mon Sep 17 00:00:00 2001
From: kib <kib@FreeBSD.org>
Date: Tue, 28 Apr 2015 08:20:23 +0000
Subject: Do not sleep waiting for the MAP_ENTRY_IN_TRANSITION state ending
 with the vnode locked.

Review:	https://reviews.freebsd.org/D2381
Submitted by:	Conrad Meyer, Attilio Rao
MFC after:	1 week
---
 sys/vm/vm_fault.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c
index 13f46e1..0c84d44 100644
--- a/sys/vm/vm_fault.c
+++ b/sys/vm/vm_fault.c
@@ -348,6 +348,10 @@ RetryFault:;
 		vm_map_lock(fs.map);
 		if (vm_map_lookup_entry(fs.map, vaddr, &fs.entry) &&
 		    (fs.entry->eflags & MAP_ENTRY_IN_TRANSITION)) {
+			if (fs.vp != NULL) {
+				vput(fs.vp);
+				fs.vp = NULL;
+			}
 			fs.entry->eflags |= MAP_ENTRY_NEEDS_WAKEUP;
 			vm_map_unlock_and_wait(fs.map, 0);
 		} else
-- 
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