From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 5 Dec 2006 05:35:42 +0000 (-0500)
Subject: NFS: Fix nfs_release_page
X-Git-Tag: v3.12-rc1~31383^2~47^2~68
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fa8d8c5b77a2dc467b5365a5651710161b84f16d;p=kernel%2Fkernel-generic.git

NFS: Fix nfs_release_page

invalidate_inode_pages2_range() will clear the PG_dirty bit before calling
try_to_release_page().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 238fb66..8e28bff 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -315,13 +315,14 @@ static void nfs_invalidate_page(struct page *page, unsigned long offset)
 
 static int nfs_release_page(struct page *page, gfp_t gfp)
 {
-	if (gfp & __GFP_FS)
-		return !nfs_wb_page(page->mapping->host, page);
-	else
-		/*
-		 * Avoid deadlock on nfs_wait_on_request().
-		 */
+	/*
+	 * Avoid deadlock on nfs_wait_on_request().
+	 */
+	if (!(gfp & __GFP_FS))
 		return 0;
+	/* Hack... Force nfs_wb_page() to write out the page */
+	SetPageDirty(page);
+	return !nfs_wb_page(page->mapping->host, page);
 }
 
 const struct address_space_operations nfs_file_aops = {