From f924bfc1c5932f20f0ee3006632ee0a06658cd6a Mon Sep 17 00:00:00 2001
From: pjd <pjd@FreeBSD.org>
Date: Sat, 15 Mar 2008 23:23:04 +0000
Subject: Fix mmap(2) on ZFS after some changes in VM subsystem.

Submitted by:	alc
Reported by:	kris (originally) and many others
Tested with:	fsx
MFC after:	1 week
---
 sys/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sys/contrib')

diff --git a/sys/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c b/sys/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
index 8c67a59..4008178 100644
--- a/sys/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
+++ b/sys/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
@@ -346,6 +346,10 @@ again:
 			VM_OBJECT_LOCK(obj);
 			vm_page_wakeup(m);
 		} else {
+			if (__predict_false(obj->cache != NULL)) {
+				vm_page_cache_free(obj, OFF_TO_IDX(start),
+				    OFF_TO_IDX(start) + 1);
+			}
 			dirbytes += bytes;
 		}
 		len -= bytes;
-- 
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