From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Sun, 15 Apr 2007 20:21:49 +0000 (-0400)
Subject: NFS: Fix a list corruption problem
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=eb4cac10d9f7b006da842e2d37414d13e1333781;p=openwrt%2Fstaging%2Fblogic.git

NFS: Fix a list corruption problem

We must remove the request from whatever list it is currently on before we
can add it to the dirty list.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index e5d7cac569aa..ad2e91b4904f 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -280,8 +280,10 @@ static int nfs_page_mark_flush(struct page *page)
 		spin_lock(req_lock);
 	}
 	spin_unlock(req_lock);
-	if (nfs_set_page_writeback(page) == 0)
+	if (nfs_set_page_writeback(page) == 0) {
+		nfs_list_remove_request(req);
 		nfs_mark_request_dirty(req);
+	}
 	ret = test_bit(PG_NEED_FLUSH, &req->wb_flags);
 	nfs_unlock_request(req);
 	return ret;