From: Sage Weil <sage@newdream.net>
Date: Fri, 22 Aug 2008 21:37:59 +0000 (-0700)
Subject: kclient: fix redirty_page to actually set the dirty bit
X-Git-Tag: v0.4~178
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=291971ed2d5cf86e860eb6851f957a49e02d5fe3;p=ceph.git

kclient: fix redirty_page to actually set the dirty bit
---

diff --git a/src/kernel/addr.c b/src/kernel/addr.c
index 4c5fb7b62fa..3c27d69378e 100644
--- a/src/kernel/addr.c
+++ b/src/kernel/addr.c
@@ -124,6 +124,13 @@ static int ceph_set_page_dirty(struct page *page,
 static void ceph_redirty_page(struct address_space *mapping, struct page *page)
 {
 	BUG_ON(!PageLocked(page));
+
+	if (TestSetPageDirty(page)) {
+		dout(20, "%p redirty_page %p -- already dirty\n",
+		     mapping->host, page);
+		return 0;
+	}
+
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
 	spin_lock_irq(&mapping->tree_lock);
 #else