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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F80DC71136 for ; Mon, 16 Jun 2025 03:14:14 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9CF436B0088; Sun, 15 Jun 2025 23:14:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 980196B0089; Sun, 15 Jun 2025 23:14:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8960C6B008A; Sun, 15 Jun 2025 23:14:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 7A3FE6B0088 for ; Sun, 15 Jun 2025 23:14:13 -0400 (EDT) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 2E7AB142446 for ; Mon, 16 Jun 2025 03:14:13 +0000 (UTC) X-FDA: 83559795186.29.640F28C Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf04.hostedemail.com (Postfix) with ESMTP id 4B59E40005 for ; Mon, 16 Jun 2025 03:14:10 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=BsNKNSEx; dmarc=none; spf=none (imf04.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1750043651; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=saNW8zdmippLZ+j7mPmKokLCsY7iQ+AF9tZzNqrD19s=; b=xGn5nu2uRqCcLmzv0fBuK1br+xiD2LwC8RYsbHMPXfla9jhRypUas2xMHEzI5ZSuLwANB+ 58Pw0zxEUMSdH6WvRFsiObNbzYeJUaGWsOkFXdiDeX8P6oWvQYcKt3PEdjZw9Kao7HtR6F XoRTVpRrz8GXOaLdBN8pdm3YtxwHYwQ= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1750043651; a=rsa-sha256; cv=none; b=nNnBk60o1JxUwqkJ+UAMiDQPDn+G8usfGzyDxSOdbVlL5H0tPxBjzrn4wzeGy1llTGgU/t 5dF/olYoHcTKEYu/Tz6GzToU49aUAvmHGFMQk4epZobPoxmQDpC7hwPwTlQz4WZCHwozY1 H1c0ey5yacFbZAxHd/dU4ys1Fdna68M= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=BsNKNSEx; dmarc=none; spf=none (imf04.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=saNW8zdmippLZ+j7mPmKokLCsY7iQ+AF9tZzNqrD19s=; b=BsNKNSExvA9ezQrc46m9qXkSN7 4cQGezjhvnz2LgDhnu8UNRpY71q7WcxFVbxKkvwFooieoP1RAqi2gMen9NdtjmJKJr1tk7Yg3jryv U4NeEqkudnRmDnynRoYxCleb7l1+TdsVDXNF7EKSNZ3WXMK5iT0ifuHtAt9hbX2Fmh9cu5R4xwmZB i0+2vHFe0uzJv6c7dEuDfdTPc80CHfdFFi4B/I3Ku3PnISB7mTNlYswQ4QzkPM1ioF8ritKYHhRmu U6CNQZQViGDPU1oaUA+CLOkr88XQfqLNszq7vrJZ5uoI19RtJMc4jMdT+DSCAijzCsZ5obtSa8gQP IugRgPbQ==; Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1uR0IF-0000000FUtX-15Dq; Mon, 16 Jun 2025 03:13:55 +0000 Date: Mon, 16 Jun 2025 04:13:55 +0100 From: Matthew Wilcox To: Hao Ge Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Mike Rapoport , Richard Henderson , Matt Turner , Dennis Zhou , Tejun Heo , Christoph Lameter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Kent Overstreet , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-alpha@vger.kernel.org, linux-s390@vger.kernel.org, Hao Ge Subject: Re: [PATCH v3 1/2] mm: Optimize the ARCH_NEEDS_WEAK_PER_CPU logic for s390/alpha architectures Message-ID: References: <57e110be6d8387e403b4ef1f3b10714c36afbb51.1750040317.git.gehao@kylinos.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <57e110be6d8387e403b4ef1f3b10714c36afbb51.1750040317.git.gehao@kylinos.cn> X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 4B59E40005 X-Stat-Signature: aajd9mix5j9sdkecb13n3xyadzjz4711 X-Rspam-User: X-HE-Tag: 1750043650-418200 X-HE-Meta: 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 UaxE+UsJ +gTFkcguG1U6VRgRaZ0swfMHC3TqF746jf7Q0wkJrtHa+yE68R46uhCy1b9zDbn7V6JQUpHMxBYHh6l+TyF/r4ogM1blvt8O4I8LFzkpgA7mFypSuw0slHclUWgUzdcN4e6GIs1apQ2oeUSj8ilGk4wA7exwXSeV8CDRNh1QOZpVmzWu5J7GRaSFu37MyNn7U260LZLQzdWS/1q3j3xio5s+Cb+hvWozrWk7OfgzwUkvym9RfqKyYqnmzCjsEP3HQLp2G8w0OYu5Pj4qZ0qnEnKkxSQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jun 16, 2025 at 10:29:17AM +0800, Hao Ge wrote: > +++ b/mm/Kconfig > @@ -929,6 +929,10 @@ config ARCH_SUPPORTS_PUD_PFNMAP > def_bool y > depends on ARCH_SUPPORTS_HUGE_PFNMAP && HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD > > +# s390 and alpha should be enabled,see comments for DECLARE_PER_CPU_SECTION This comment is inappropriate and should be removed. > +config ARCH_NEEDS_WEAK_PER_CPU > + bool > + > # > # UP and nommu archs use km based percpu allocator > # > -- > 2.25.1 > >