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 8EDE21094471 for ; Sat, 21 Mar 2026 13:02:31 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fdKN60NCBz2yZN; Sun, 22 Mar 2026 00:02:30 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=115.124.30.100 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1774098149; cv=none; b=e+jdkdsLhs6qJGMYt4g7Ctg6+B0dcTXGes+xrOLL+GLksS/joT7ho++poeqPfXrwAisM9cHpeKdLA34ZE5muJVEamfftogrNwMezZIStBT7CI2vCVWDTBFU7IM3LMfrptB8F4BQmohKPGGaZJs0p564U+4MszxGi2MAvSsIv2xcrGHAjeCT9JE2lj8h7PLXAcbxdllCJhNbGep0cy01EhB/rHXelkRDahW5696+s7qmFZR8KCJoDRHNmI2FOG8NOjLgvINtVmadozVAK7VcYzm8K5dlKqTEvdavWw8cNgDiWYIscT9USQNmNsDBu4eMaEI+x1rJ2VNTMkY0IOAuDLA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1774098149; c=relaxed/relaxed; bh=NJPULCri2DdVUmJbTlU4Rxn6JWleCj28Q+e1h/YTmMM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=AvpksjdsFzbRSzswZtvTC4mdxkKJf+mQFWCtsQwMMs+AVx3tLRFHKh8zdDXWgwabwYP8+Ckphw5Y3hlYUGh7yIahFH7UxdeRCKDqJW2QA0ZERYSNbq+deQZj2GE3bXRMEB8/gBqkOE+pPPGWArnLft1wkgcKCpHeirH4/FQqGXZd7F+pARXQPCOsnam7OAuOQWFCBB1j7WAsQ7CKqPQKNs46VJOJE7Z291dLhdud5enL3/rHeMmY1MOyn6c/3AAzs+6a1Fv8bYzehN75Aoxy/KrrRw4Zl57q9y+nE5kcngHW0PpUOB0quviX/TSN68rRlPK9k6iAXsPeXU1UiViTuw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=UmVHNct5; dkim-atps=neutral; spf=pass (client-ip=115.124.30.100; helo=out30-100.freemail.mail.aliyun.com; envelope-from=baolin.wang@linux.alibaba.com; receiver=lists.ozlabs.org) smtp.mailfrom=linux.alibaba.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.a=rsa-sha256 header.s=default header.b=UmVHNct5; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.alibaba.com (client-ip=115.124.30.100; helo=out30-100.freemail.mail.aliyun.com; envelope-from=baolin.wang@linux.alibaba.com; receiver=lists.ozlabs.org) Received: from out30-100.freemail.mail.aliyun.com (out30-100.freemail.mail.aliyun.com [115.124.30.100]) (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 4fdKN208dRz2xWP for ; Sun, 22 Mar 2026 00:02:23 +1100 (AEDT) DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1774098138; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=NJPULCri2DdVUmJbTlU4Rxn6JWleCj28Q+e1h/YTmMM=; b=UmVHNct5cOhiSHITDMIXaJJkmaIHU6daykWM8FmRQAgEim0nj6G4CkltqCdO0Q4L1K+SF7Nv2Rjs3XWeWzvxSwhqIQydbDlerizI5e6oALVDpI0gI53Fzus8f2ON0vJ4VIWEIJWwZ79OF0GGapXIcsK7L3PQZqePvDjyjHFXfqE= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033032089153;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=18;SR=0;TI=SMTPD_---0X.Ombip_1774098136; Received: from 30.42.98.36(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0X.Ombip_1774098136 cluster:ay36) by smtp.aliyun-inc.com; Sat, 21 Mar 2026 21:02:17 +0800 Message-ID: Date: Sat, 21 Mar 2026 21:02:16 +0800 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/6] change young flag check functions to return bool To: "Ritesh Harjani (IBM)" , akpm@linux-foundation.org, david@kernel.org Cc: ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, linux-arm-kernel@lists.infradead.org, x86@kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, open , linux-kernel@vger.kernel.org References: From: Baolin Wang In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/21/26 1:31 PM, Ritesh Harjani (IBM) wrote: > Baolin Wang writes: > >> This is a cleanup patchset to change all young flag check functions to >> return bool, as discussed with David in the previous thread[1]. Since >> callers only care about whether the young flag was set, returning bool >> makes the intention clearer. No functional changes intended. >> >> Ran mm selftests on Arm64 and x86 machines, and no issues were found. >> >> Note that I only CC'd the arch mailing lists to avoid disturbing too >> many people. >> >> [1] https://lore.kernel.org/all/d172d6bf-c60c-4cf5-9da9-f30de38cdfed@kernel.org/ >> >> Baolin Wang (6): >> mm: change to return bool for ptep_test_and_clear_young() >> mm: change to return bool for >> ptep_clear_flush_young()/clear_flush_young_ptes() >> mm: change to return bool for pmdp_test_and_clear_young() >> mm: change to return bool for pmdp_clear_flush_young() >> mm: change to return bool for pudp_test_and_clear_young() >> mm: change to return bool for the MMU notifier's young flag check >> >> arch/arm64/include/asm/pgtable.h | 29 ++++---- >> arch/arm64/mm/contpte.c | 8 +-- >> arch/microblaze/include/asm/pgtable.h | 2 +- >> arch/parisc/include/asm/pgtable.h | 8 +-- >> arch/parisc/kernel/cache.c | 8 +-- >> arch/powerpc/include/asm/book3s/32/pgtable.h | 4 +- >> arch/powerpc/include/asm/book3s/64/pgtable.h | 26 +++---- >> arch/powerpc/include/asm/nohash/64/pgtable.h | 2 +- >> arch/powerpc/include/asm/nohash/pgtable.h | 4 +- >> arch/powerpc/mm/book3s64/pgtable.c | 8 +-- > > I did compile and boot test on powerpc with various configs and overall > it looks good. Really appreciate your help with testing!