From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755649AbXEWTPd (ORCPT ); Wed, 23 May 2007 15:15:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755343AbXEWTPZ (ORCPT ); Wed, 23 May 2007 15:15:25 -0400 Received: from mx1.redhat.com ([66.187.233.31]:37901 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754956AbXEWTPY (ORCPT ); Wed, 23 May 2007 15:15:24 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells Subject: [PATCH 1/4] AFS: Add TestSetPageError() To: akpm@osdl.org Cc: linux-kernel@vger.kernel.org, dhowells@redhat.com Date: Wed, 23 May 2007 20:15:19 +0100 Message-ID: <20070523191518.24135.81257.stgit@warthog.cambridge.redhat.com> User-Agent: StGIT/0.12.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Add a TestSetPageError() macro to the suite of page flag manipulators. This can be used by AFS to prevent over-excision of rejected writes from the page cache. Signed-off-by: David Howells --- include/linux/page-flags.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index ae2d79f..cc8d952 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -121,6 +121,7 @@ #define PageError(page) test_bit(PG_error, &(page)->flags) #define SetPageError(page) set_bit(PG_error, &(page)->flags) #define ClearPageError(page) clear_bit(PG_error, &(page)->flags) +#define TestSetPageError(page) test_and_set_bit(PG_error, &(page)->flags) #define PageReferenced(page) test_bit(PG_referenced, &(page)->flags) #define SetPageReferenced(page) set_bit(PG_referenced, &(page)->flags)