From e2d0be017278d6dce5b44b014bd1674245aa0ef2 Mon Sep 17 00:00:00 2001
From: Alan Cox <alc@FreeBSD.org>
Date: Wed, 27 May 2009 18:12:10 +0000
Subject: [PATCH] Eliminate redundant setting of a page's valid bits and
 pointless clearing of the same page's dirty bits.

---
 sys/fs/tmpfs/tmpfs_vnops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/fs/tmpfs/tmpfs_vnops.c b/sys/fs/tmpfs/tmpfs_vnops.c
index 64114fa94fc..a00ba2fd50f 100644
--- a/sys/fs/tmpfs/tmpfs_vnops.c
+++ b/sys/fs/tmpfs/tmpfs_vnops.c
@@ -606,8 +606,8 @@ out:
 		VM_OBJECT_LOCK(vobj);
 	vm_page_lock_queues();
 	if (error == 0) {
-		vm_page_set_validclean(tpg, offset, tlen);
-		vm_page_zero_invalid(tpg, TRUE);
+		KASSERT(tpg->valid == VM_PAGE_BITS_ALL,
+		    ("parts of tpg invalid"));
 		vm_page_dirty(tpg);
 	}
 	vm_page_unwire(tpg, TRUE);