Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761004AbXIUOvA (ORCPT ); Fri, 21 Sep 2007 10:51:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760095AbXIUOtY (ORCPT ); Fri, 21 Sep 2007 10:49:24 -0400 Received: from mx1.redhat.com ([66.187.233.31]:51234 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758877AbXIUOtW (ORCPT ); Fri, 21 Sep 2007 10:49:22 -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 17/22] AFS: Add TestSetPageError() To: viro@ftp.linux.org.uk, hch@infradead.org, Trond.Myklebust@netapp.com, sds@tycho.nsa.gov, casey@schaufler-ca.com Cc: linux-kernel@vger.kernel.org, selinux@tycho.nsa.gov, linux-security-module@vger.kernel.org, dhowells@redhat.com Date: Fri, 21 Sep 2007 15:48:30 +0100 Message-ID: <20070921144830.8323.66572.stgit@warthog.procyon.org.uk> In-Reply-To: <20070921144703.8323.50492.stgit@warthog.procyon.org.uk> References: <20070921144703.8323.50492.stgit@warthog.procyon.org.uk> User-Agent: StGIT/0.13 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 Content-Length: 1144 Lines: 28 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 eaf9854..b59506b 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -130,6 +130,7 @@ #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) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/