From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1843C4321A for ; Tue, 11 Jun 2019 10:25:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AEE392089E for ; Tue, 11 Jun 2019 10:25:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405374AbfFKKZb (ORCPT ); Tue, 11 Jun 2019 06:25:31 -0400 Received: from mx2.suse.de ([195.135.220.15]:52112 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2405196AbfFKKZb (ORCPT ); Tue, 11 Jun 2019 06:25:31 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 0928CADDD; Tue, 11 Jun 2019 10:25:30 +0000 (UTC) Subject: Re: [PATCH 11/12] closures: closure_wait_event() To: Kent Overstreet , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-bcache@vger.kernel.org References: <20190610191420.27007-1-kent.overstreet@gmail.com> <20190610191420.27007-12-kent.overstreet@gmail.com> From: Coly Li Openpgp: preference=signencrypt Organization: SUSE Labs Message-ID: <3130eb62-e3b7-12d7-e724-7d549c68b6cf@suse.de> Date: Tue, 11 Jun 2019 18:25:22 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190610191420.27007-12-kent.overstreet@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019/6/11 3:14 上午, Kent Overstreet wrote: > Signed-off-by: Kent Overstreet Acked-by: Coly Li Thanks. Coly Li > --- > include/linux/closure.h | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/include/linux/closure.h b/include/linux/closure.h > index 308e38028c..abacb91c35 100644 > --- a/include/linux/closure.h > +++ b/include/linux/closure.h > @@ -379,4 +379,26 @@ static inline void closure_call(struct closure *cl, closure_fn fn, > continue_at_nobarrier(cl, fn, wq); > } > > +#define __closure_wait_event(waitlist, _cond) \ > +do { \ > + struct closure cl; \ > + \ > + closure_init_stack(&cl); \ > + \ > + while (1) { \ > + closure_wait(waitlist, &cl); \ > + if (_cond) \ > + break; \ > + closure_sync(&cl); \ > + } \ > + closure_wake_up(waitlist); \ > + closure_sync(&cl); \ > +} while (0) > + > +#define closure_wait_event(waitlist, _cond) \ > +do { \ > + if (!(_cond)) \ > + __closure_wait_event(waitlist, _cond); \ > +} while (0) > + > #endif /* _LINUX_CLOSURE_H */ > -- Coly Li