linux-kernel - [PATCH] nfs: fix NR_FILE

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Date:	Wed, 13 Dec 2006 13:12:38 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Andrew Morton <akpm@...l.org>,
	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH] nfs: fix NR_FILE_DIRTY underflow

Still testing this patch, but it looks good so far.

---
Just setting PG_dirty can cause NR_FILE_DIRTY to underflow
which is bad (TM).

Use set_page_dirty() which will do the right thing.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
---
 fs/nfs/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6-git2/fs/nfs/file.c
===================================================================
--- linux-2.6-git2.orig/fs/nfs/file.c	2006-12-13 12:54:55.000000000 +0100
+++ linux-2.6-git2/fs/nfs/file.c	2006-12-13 12:55:12.000000000 +0100
@@ -321,7 +321,7 @@ static int nfs_release_page(struct page 
 	if (!(gfp & __GFP_FS))
 		return 0;
 	/* Hack... Force nfs_wb_page() to write out the page */
-	SetPageDirty(page);
+	set_page_dirty(page);
 	return !nfs_wb_page(page->mapping->host, page);
 }
 


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