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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 895F9C001DE for ; Wed, 26 Jul 2023 07:25:49 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=S2kua2S0; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4R9lmr0xrZz2ytF for ; Wed, 26 Jul 2023 17:25:48 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=S2kua2S0; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.dev (client-ip=91.218.175.18; helo=out-18.mta0.migadu.com; envelope-from=muchun.song@linux.dev; receiver=lists.ozlabs.org) Received: from out-18.mta0.migadu.com (out-18.mta0.migadu.com [91.218.175.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4R9lml63cMz2yVF for ; Wed, 26 Jul 2023 17:25:43 +1000 (AEST) Content-Type: text/plain; charset=us-ascii DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1690356339; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zvdjs6nZtoAJTeUNZnzlMBg+3W9EeQfEjhMJc2aooOM=; b=S2kua2S04Evo6/UraSJyk1agL/DLGyhTxgzf2kveiPAUMLzy8KFKZaoPl72LwAbMUUU5KX yI90TImY1RmSccSZNS94f8DfCPZ1jkBAfVxRDDBOpVRhB+p5BTP1ltZuaxYaeg0c8hKX8y 9ZHbolk78fhzGoCn5zkqLPSgrNIAnzc= MIME-Version: 1.0 Subject: Re: [PATCH v2 25/47] dm: dynamically allocate the dm-bufio shrinker X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <20230724094354.90817-26-zhengqi.arch@bytedance.com> Date: Wed, 26 Jul 2023 15:24:47 +0800 Content-Transfer-Encoding: 7bit Message-Id: References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> <20230724094354.90817-26-zhengqi.arch@bytedance.com> To: Qi Zheng X-Migadu-Flow: FLOW_OUT X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, djwong@kernel.org, Roman Gushchin , david@fromorbit.com, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, dm-devel@redhat.com, linux-mtd@lists.infradead.org, cel@kernel.org, x86@kernel.org, steven.price@arm.com, cluster-devel@redhat.com, xen-devel@lists.xenproject.org, linux-ext4@vger.kernel.org, "Paul E. McKenney" , linux-arm-msm@vger.kernel.org, linux-nfs@vger.kernel.org, rcu@vger.kernel.org, linux-bcache@vger.kernel.org, yujie.liu@intel.com, Vlastimil Babka , linux-raid@vger.kernel.org, Christian Brauner , tytso@mit.edu, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, senozhatsky@chromium.org, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, Andrew Morton , linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org, tkhai@ ya.ru Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" > On Jul 24, 2023, at 17:43, Qi Zheng wrote: > > In preparation for implementing lockless slab shrink, use new APIs to > dynamically allocate the dm-bufio shrinker, so that it can be freed > asynchronously using kfree_rcu(). Then it doesn't need to wait for RCU > read-side critical section when releasing the struct dm_bufio_client. > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song