From patchwork Wed May 6 13:20:41 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kinglong Mee X-Patchwork-Id: 6349641 Return-Path: X-Original-To: patchwork-linux-fsdevel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E421D9F373 for ; Wed, 6 May 2015 13:20:51 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2A752201FE for ; Wed, 6 May 2015 13:20:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4254E202EC for ; Wed, 6 May 2015 13:20:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751135AbbEFNUs (ORCPT ); Wed, 6 May 2015 09:20:48 -0400 Received: from mail-pd0-f171.google.com ([209.85.192.171]:36578 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751105AbbEFNUr (ORCPT ); Wed, 6 May 2015 09:20:47 -0400 Received: by pdea3 with SMTP id a3so9631105pde.3; Wed, 06 May 2015 06:20:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=uB3o1mh/e5+SA6FPqHWrfhJBsKwg5Afur9xW9iCXzW0=; b=MT8YmZtRnicmw9nrLgSrdCSy/McjajSMN4jJB4IjOxjBnoJnONMaIr5B6CAEQGLpKl 3D4RUqz7OgOmH5qtB/vyr/fRJunoGSYSYz9lmIZtTI8sLXZ9iwNQhiJMYyA7MR6QbPI3 Y8JebUxP/cPKjI5UmEvY/REqJgk/jo+8N3rOcXbLklvPhwcQGicNXqo2GtaY/1NjAf0N hJhUaFsFdHHS9dJ/SqK3/HcqTGZN74RJus4akgNJiIsXAV6gISvakJU/6Ka9NVWsdYHX 7ilhwUvKJ2m4ofDZWezh0RZvteclAfr6k2UBde41psyhUDgTV3fqOcnbaTdG/H5vTIz1 iOBQ== X-Received: by 10.68.68.232 with SMTP id z8mr61545709pbt.104.1430918446856; Wed, 06 May 2015 06:20:46 -0700 (PDT) Received: from [192.168.99.11] ([104.143.41.79]) by mx.google.com with ESMTPSA id jg3sm1920690pbb.72.2015.05.06.06.20.43 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 06 May 2015 06:20:46 -0700 (PDT) Message-ID: <554A1529.4050100@gmail.com> Date: Wed, 06 May 2015 21:20:41 +0800 From: Kinglong Mee User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: "J. Bruce Fields" , linux-fsdevel@vger.kernel.org, "linux-nfs@vger.kernel.org" CC: Al Viro , NeilBrown , Trond Myklebust , kinglongmee@gmail.com Subject: [PATCH 3/4] sunrpc: New helper cache_force_expire for cache cleanup References: <554A149B.5060102@gmail.com> In-Reply-To: <554A149B.5060102@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Using expiry_time force cleanup a cache. Signed-off-by: Kinglong Mee --- include/linux/sunrpc/cache.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 437ddb6..ce75e9c 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -210,6 +210,17 @@ extern int cache_check(struct cache_detail *detail, struct cache_head *h, struct cache_req *rqstp); extern void cache_flush(void); extern void cache_purge(struct cache_detail *detail); + +static inline void cache_force_expire(struct cache_detail *detail, struct cache_head *h) +{ + write_lock(&detail->hash_lock); + h->expiry_time = seconds_since_boot() - 1; + detail->nextcheck = seconds_since_boot(); + write_unlock(&detail->hash_lock); + + cache_flush(); +} + #define NEVER (0x7FFFFFFF) extern void __init cache_initialize(void); extern int cache_register_net(struct cache_detail *cd, struct net *net);