From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 30 Jul 2024 12:08:56 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1sYjmq-004QgY-1j for lore@lore.pengutronix.de; Tue, 30 Jul 2024 12:08:56 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sYjmp-0007nA-UD for lore@pengutronix.de; Tue, 30 Jul 2024 12:08:56 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=wO3QX8NuEHYUWOVOhnZZB4h/YOe9NWy2PnDfQO0nxF0=; b=tXP0cWQwvxlqp8FPBROddD8MWp Sv1bgFY3Yh9eDATLvb7Cfwrpab4PjyBXf0msmdBxX2QnVSukgfX5daO7XUss2RG1guGej0VWkGZsO 1UmNfyIQa0QIPrAZVsFu/7uwcMLf4992Ou3PotpK/W1mma6n+agBeNPtqJu6Hl/bEAH/aJB+vKaIp 75lPUHjyNBehdWHFTs88o0/itm5TL2kyHZlfgXZD4cE1PJkLhW3DVZNiU67bw0AUyhhaqWmadEKpP u38W+bDoZw2zW7k8IceewaxRVLW2JexwHQzdqIvw4c5ls+v3X0urDONlqE/nsVwluSJra6gtnBZgq cFLuSxbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYjmN-0000000EfH3-1RfK; Tue, 30 Jul 2024 10:08:27 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYjmJ-0000000EfGW-3eeN for barebox@lists.infradead.org; Tue, 30 Jul 2024 10:08:25 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1sYjmI-0007iq-5F; Tue, 30 Jul 2024 12:08:22 +0200 Received: from [2a0a:edc0:2:b01:1d::c5] (helo=pty.whiteo.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sYjmH-003G84-ON; Tue, 30 Jul 2024 12:08:21 +0200 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1sYjmH-0096Qc-28; Tue, 30 Jul 2024 12:08:21 +0200 Date: Tue, 30 Jul 2024 12:08:21 +0200 From: Sascha Hauer To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: References: <20240730071929.2016537-1-a.fatoum@pengutronix.de> <20240730071929.2016537-9-a.fatoum@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240730071929.2016537-9-a.fatoum@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240730_030823_927995_278B2A58 X-CRM114-Status: GOOD ( 17.57 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH 08/10] commands: sync: add new command to flush cached writes X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Tue, Jul 30, 2024 at 09:19:27AM +0200, Ahmad Fatoum wrote: > In barebox, the dirty block cache for a given device is flushed when > closing all file descriptors to it, a cached block needs to be evicted > due to pressure or when barebox shuts down. > > There are valid uses to do it explicitly however: > > - When benchmarking write speed to a block device > - Before forced resets, because a regular reset would run shutdown > code that should be omitted. > > Add a sync command that does this. Unlike the userspace variant, we > don't both to implement a argument-less sync that's global. Users are s/both/bother/ Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |