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 63635C001DC for ; Wed, 26 Jul 2023 07:16:49 +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=GN2j9vh2; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4R9lZS09hzz3byL for ; Wed, 26 Jul 2023 17:16:48 +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=GN2j9vh2; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.dev (client-ip=2001:41d0:1004:224b::19; helo=out-25.mta0.migadu.com; envelope-from=muchun.song@linux.dev; receiver=lists.ozlabs.org) Received: from out-25.mta0.migadu.com (out-25.mta0.migadu.com [IPv6:2001:41d0:1004:224b::19]) (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 4R9lZL2rDlz2ygG for ; Wed, 26 Jul 2023 17:16:41 +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=1690355795; 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=D9nV4Gkwsjrr4/95UoI7nAR6TO/qI/lblnfLq6UsstM=; b=GN2j9vh2yOL79kRSdyksTtnS6NLSWm3pqace0LlbvJbsUtBuOWKaOFqFI1x2Gwlrwmnstj qq8J0QgybstmeW5uMSmzXD5PGEe4vfK3am0PPA/1MT9BMOHcQr+Msowj7sFjpB4siS73jQ C2Exy1Nss1FPxGRLcy6vcv7TsLEuQ08= MIME-Version: 1.0 Subject: Re: [PATCH v2 22/47] drm/i915: dynamically allocate the i915_gem_mm shrinker X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Muchun Song In-Reply-To: <20230724094354.90817-23-zhengqi.arch@bytedance.com> Date: Wed, 26 Jul 2023 15:15:47 +0800 Content-Transfer-Encoding: 7bit Message-Id: <82139544-DF2B-42FB-A323-5E4F0598EF4E@linux.dev> References: <20230724094354.90817-1-zhengqi.arch@bytedance.com> <20230724094354.90817-23-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, Sergey Senozhatsky , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, Andrew Morton , linux-erofs@lists.ozlabs.org, linux-btrfs@vg er.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 i915_gem_mm 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 drm_i915_private. > > Signed-off-by: Qi Zheng Reviewed-by: Muchun Song