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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 CA14BEB64DD for ; Thu, 27 Jul 2023 07:12:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0F47D10E4EA; Thu, 27 Jul 2023 07:12:58 +0000 (UTC) Received: from out-26.mta0.migadu.com (out-26.mta0.migadu.com [91.218.175.26]) by gabe.freedesktop.org (Postfix) with ESMTPS id D0F6E10E3FB for ; Wed, 26 Jul 2023 07:46:15 +0000 (UTC) Message-ID: <2eb5ac60-d03f-c770-144c-67c23337a899@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1690357574; 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=6QEBEdTPSAaW2OQqcLE7rLGuRZIVN6+LeTsJ4l/CyeM=; b=PIFD02mpMzjRcZ3366WsMtp53hA717Gy3vvuYw5Rhd/AopVnoI+xS2zEoD80dtXmig5iVU e+udj9BpG++3X4I7Xha4OWZFfxbVXmw3wbp6r/NHzIwAOXaSD+OnSfxRqvRN624pP6oj8J xGsejw6XWW8uEiG+p7ecCRE5blMqFKA= Date: Wed, 26 Jul 2023 15:45:56 +0800 MIME-Version: 1.0 Subject: Re: [PATCH v2 40/47] fs: super: dynamically allocate the s_shrink To: Qi Zheng References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> <20230724094354.90817-41-zhengqi.arch@bytedance.com> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <20230724094354.90817-41-zhengqi.arch@bytedance.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT X-Mailman-Approved-At: Thu, 27 Jul 2023 07:11:21 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, djwong@kernel.org, roman.gushchin@linux.dev, 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, paulmck@kernel.org, linux-arm-msm@vger.kernel.org, brauner@kernel.org, rcu@vger.kernel.org, linux-bcache@vger.kernel.org, yujie.liu@intel.com, vbabka@suse.cz, linux-raid@vger.kernel.org, linux-nfs@vger.kernel.org, tytso@mit.edu, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, senozhatsky@chromium.org, gregkh@linuxfoundation.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org, tkhai@ya.ru Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 2023/7/24 17:43, Qi Zheng wrote: > In preparation for implementing lockless slab shrink, use new APIs to > dynamically allocate the s_shrink, 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 super_block. > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song