From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7515112C544 for ; Wed, 12 Jun 2024 22:53:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718232783; cv=none; b=WUKva0SWWmrViVtstZJIofKwg3giUS8nS2ZzZurhQjrXMWD+x3Miaa6Ds/f0K1v5JLjm39A4iYt3wcTj3YariVlu3yyv9m1QxDiaGsXjyzzrHevsxAaWD4o9/E8DCYDYhSOyPjYOhmUm1Jqse5+LzfMZun9sxq7Nf1eWX3evV8o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718232783; c=relaxed/simple; bh=L3qaXQNUUVxh4Q0Q3RMUhGqp7sJ7EFx4+fzYvA3H52A=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HnhABadrxbBGOFToVx7B8LkVH78mkG5MUei6ePJj+BDmVyp1ds4KlQFsDj0AsFMdegpc5X3YPQqpAzTqNI+n+SH0fYpM70/Ams3QApC73bQSnz5L56hJGGE8S8AslywrOSorzShcwC+QZBimQin3/5dSclXZpi85WJ8laDbi9+0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=aywWeOVU; arc=none smtp.client-ip=209.85.214.180 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="aywWeOVU" Received: by mail-pl1-f180.google.com with SMTP id d9443c01a7336-1f6f23e9377so441805ad.3 for ; Wed, 12 Jun 2024 15:53:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1718232780; x=1718837580; darn=lists.linux.dev; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=HCKGfocKzBU0+xeBiPtl1Ex5TwQcMh3k2EBSdA3xSn0=; b=aywWeOVUGrIkRg4/5l8metH/8VJZjdCaRlh7qwjZPBrH9f+qTtXLN+T3v1rajTLB4J VC5lrrzbznLDMlvRocm05xim/PNY9RCFjHdx7TYO+IYWqQNNRUlONkeqXP1LUuvYLP1A pmG+l/2s3VOIuVpxjEygfi9m5RZ7oUGG2ve/0b9kba7+GmOtFn0OohtroOu8YDnQCa0n fckUfSpsQC3QkOzTP9m1xw1LKnKoLSnAcyB+LD676KqOvInMm4fuBIdr0PWTKozmkXb3 vb1axFIZiYFQ6/mP3QcGxvrxlLV50bDh+2G32ATxV/96bG7KIV+BNsfWpECXFHrk5wB8 RVEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718232780; x=1718837580; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=HCKGfocKzBU0+xeBiPtl1Ex5TwQcMh3k2EBSdA3xSn0=; b=w7lZOm4RLEJJOlSrrNN+Lh6/vT59zK5gyTQuc4/22A5wSgqswGh6JJgWrgVaGOxKk3 YbTzROM6rJkzSFXXlLByk9GLcom++qbh+KFr/7l7VjsU1Q/WyyNWwRyAjolj15xuufyH uzgeUZCtCRu9+hJNBftmP49vzEPXbJGlPDDSUv+AoOPXE5ii+ZgzKylu5mZuEZAWtXIo aBs+4USGqRgm45cJm1wTMnslJ2iLWMLmNn55hhC3ZgCPsiKM/V9N0MwVLDFXTBkMVcJR pTVUvbpZwd6buTNfmlN/DOJ6CfzrGspEjd7cdrCtk4ltQZKjHLCTZjG0PHQdgOUUCJhe 2AXg== X-Forwarded-Encrypted: i=1; AJvYcCUpaSiaQZ9tirG9NvowPHn5I7XyLaxCaubrEJc2cHO+pM6I0YCaGY3Rui5//PZmvYKgFs7j/MM=@lists.linux.dev X-Gm-Message-State: AOJu0YydukFKfX/4Kqwqw2OhDerubYyVtzN6fa/6DVA6y8xuUhd/IOEK uguxPnyHkeEGXyYAyicHvaHV/khVQrOfxLm2j8kia8FMvwPiTR9/RJIIMkYLaw8= X-Google-Smtp-Source: AGHT+IH5UZSMoyLCwmMYbQsnXovMsmtOxcZgzfit4qNG1yAnUakar4EveGlx5xiJfFg6llU0rCt4rg== X-Received: by 2002:a05:6a20:5647:b0:1af:acda:979d with SMTP id adf61e73a8af0-1b8a9b4e85fmr2859600637.1.1718232780575; Wed, 12 Jun 2024 15:53:00 -0700 (PDT) Received: from [192.168.1.150] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-705ccb3d2c5sm73821b3a.105.2024.06.12.15.52.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Jun 2024 15:53:00 -0700 (PDT) Message-ID: <7e58e73d-4173-49fe-8f05-38a3699bc2c1@kernel.dk> Date: Wed, 12 Jun 2024 16:52:57 -0600 Precedence: bulk X-Mailing-List: bridge@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 00/14] replace call_rcu by kfree_rcu for simple kmem_cache_free callback To: paulmck@kernel.org, Jakub Kicinski Cc: Julia Lawall , linux-block@vger.kernel.org, kernel-janitors@vger.kernel.org, bridge@lists.linux.dev, linux-trace-kernel@vger.kernel.org, Mathieu Desnoyers , kvm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "Naveen N. Rao" , Christophe Leroy , Nicholas Piggin , netdev@vger.kernel.org, wireguard@lists.zx2c4.com, linux-kernel@vger.kernel.org, ecryptfs@vger.kernel.org, Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , linux-nfs@vger.kernel.org, linux-can@vger.kernel.org, Lai Jiangshan , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, Vlastimil Babka References: <20240609082726.32742-1-Julia.Lawall@inria.fr> <20240612143305.451abf58@kernel.org> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/12/24 4:37 PM, Paul E. McKenney wrote: > [PATCH 09/14] block: replace call_rcu by kfree_rcu for simple kmem_cache_free callback > I don't see a kmem_cache_destroy(), but then again, I also don't > see the kmem_cache_create(). Unless someone can see what I am > not seeing, let's wait. It's in that same file: blk_ioc_init() the cache itself never goes away, as the ioc code is not unloadable. So I think the change there should be fine. -- Jens Axboe