From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A5D2A1799F for ; Wed, 3 Jul 2024 02:13:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719972824; cv=none; b=lSGdsOAIRbFHC5KfutMDhWvHsSJfkNZNFYtv3NTX8MnkZbbSbQGQfw6rCOMxcarBimzkqUBAPBIPIUEoN/v8/T4zFnj/hhMiMezXsgj9RTFvrF3uD679JNUSTOl9XlMsuDUL+J/QSO6hAqnmG20PxtzkRBKOFYeBVNr4g7w3tVs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719972824; c=relaxed/simple; bh=0B0KJjCjfdjRJT2RpzY5cxrGHmC5KY/2taoV0OESIwo=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=dBhoOs4oyOfzzya0J17v21YLVwz3lU78EHqHQPxSa2XPc8NRTxV81IpbEnTQ8b3a8fTKIN80Bo3iPW6MzfvuE1bsCCUyvrUIM9j9JVz5VafNoooEdetMRYSGzjAyVZBGZwNQDLq8k1xEiogLmdU5GLb3RNDQDU9cDnCbBwDbeps= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Yfj4eJYc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Yfj4eJYc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D49F5C116B1; Wed, 3 Jul 2024 02:13:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1719972824; bh=0B0KJjCjfdjRJT2RpzY5cxrGHmC5KY/2taoV0OESIwo=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Yfj4eJYcf3KuGPNGsqBNp1OHxXefeNQqns/2MujG3QWLJ40q/ROXkwA8vLBD3zHm/ r0BjjfmJpELcv+SeCgNDEYKhPpD2xvPPP/r03A8FUGuGCUGT5/PKWrTP2Uj7AarXuQ C0Xjv0KUEgbq6zFdE2M1Yb8lYYqTP7J8/gCz/NBI= Date: Tue, 2 Jul 2024 19:13:43 -0700 From: Andrew Morton To: Hugh Dickins Cc: Baolin Wang , Nhat Pham , Yang Shi , Zi Yan , Barry Song , Kefeng Wang , David Hildenbrand , Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH hotfix] mm: fix crashes from deferred split racing folio migration Message-Id: <20240702191343.c3f0c0a8725bed7047f4926d@linux-foundation.org> In-Reply-To: References: <29c83d1a-11ca-b6c9-f92e-6ccb322af510@google.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 2 Jul 2024 09:15:54 -0700 (PDT) Hugh Dickins wrote: > > > > Anyway, I think this patch can still fix some possible races. Feel free to > > add: > > Reviewed-by: Baolin Wang > > Thanks, but I certainly don't want this to go into the tree if it's > still flawed as you suggest. I queued it for testing but I shall not send it unsrteam until we have sorted these things out.