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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 4B1361088E71 for ; Thu, 19 Mar 2026 03:24:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=Z8ArazpuHzwIU8/sGdkPDAUgZ5Tq6d2MPt9c5EGHyCA=; b=Q0kqTo7EEOsEPG2Q1vW657zQjs WzJ2azmRVksaXPrhca5oHi7FOx8C0YeYtyC3JqxoVyw1Hgm6IMn/HJn1FPD9ojIEmWnyrY7Tgt0g1 azDpLfTE7xs0Pur3lzpGFjYByv5h6nyLDQmXM1QjVsKFXsapxCUJIdtyk8u/Ij6+JeoMoYjDVV/0P 4n8BiaihTfr3PvlEmHNj4ibQD4v5SkGhWB0LgYdhWTV42/xVmtpRndLzfT4HPqQIPlSSwQSHsOcYo KEopkpRL71FSFR+FLvtQxVeL3bp4oM5sC4qn8cCyIQ8+9i6pP33eNJNCpsvklJ/xjQC3BTNsrt2K7 JtLYdnWg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1w33zo-00000009oQX-3ybl; Thu, 19 Mar 2026 03:24:28 +0000 Received: from out30-99.freemail.mail.aliyun.com ([115.124.30.99]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w33zk-00000009oOv-28eJ; Thu, 19 Mar 2026 03:24:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1773890658; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=Z8ArazpuHzwIU8/sGdkPDAUgZ5Tq6d2MPt9c5EGHyCA=; b=EyTILYUbcZJcnd1smUvge8rFRD1LpYuRaDbj+hDft4CM6i8kVdB2FUWZe87xzXYqYGddH0ZtG27ugWwetFF2wBcra9yPFgVnqkiJjkyqJvfScTyqRIpwgQCZJVl2z3qSej5wz5ES2YZ+MAKltcSA2uNvZkf+oG3vdHQLxya7Du8= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R541e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045133197;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=18;SR=0;TI=SMTPD_---0X.GnNVC_1773890655; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0X.GnNVC_1773890655 cluster:ay36) by smtp.aliyun-inc.com; Thu, 19 Mar 2026 11:24:16 +0800 From: Baolin Wang To: 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, baolin.wang@linux.alibaba.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, linux-mm@kvack.org (open), linux-kernel@vger.kernel.org Subject: [PATCH 0/6] change young flag check functions to return bool Date: Thu, 19 Mar 2026 11:23:59 +0800 Message-ID: X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260318_202425_240048_B2DED4EF X-CRM114-Status: UNSURE ( 7.46 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 +-- arch/riscv/include/asm/pgtable.h | 14 ++-- arch/riscv/mm/pgtable.c | 8 +-- arch/s390/include/asm/pgtable.h | 16 ++--- arch/x86/include/asm/pgtable.h | 20 +++--- arch/x86/mm/pgtable.c | 28 ++++---- arch/xtensa/include/asm/pgtable.h | 6 +- include/linux/mmu_notifier.h | 76 +++++++++----------- include/linux/pgtable.h | 53 +++++++------- mm/internal.h | 16 ++--- mm/mmu_notifier.c | 20 +++--- mm/pgtable-generic.c | 14 ++-- virt/kvm/kvm_main.c | 40 +++++------ 22 files changed, 201 insertions(+), 209 deletions(-) -- 2.47.3