From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-124.freemail.mail.aliyun.com (out30-124.freemail.mail.aliyun.com [115.124.30.124]) (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 D988F18859B; Thu, 19 Mar 2026 03:24:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773890663; cv=none; b=iGf4qMcPpqd3AfeB8PR9YNG48j6svi0zOeEMut+0Ev1pAyt5ARixkk+ilzEbC8XWjojzA6+AJgMBTJ02iH8UBCtFwr9o2m6dtN3fRa37V64wnAoxdu6+gZ0TP+rATK6zWE2kyZusl2TSVGzCr4wmP5DcuA38M4/zpHxZrVUOcJI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773890663; c=relaxed/simple; bh=R9dNdbyhlYfRDOhshT0d5PeBp+yAD63X5J7pR8+2fQw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=o00ETq+BFHU/4a8xel5QujPbOYUA4+BZjYE5nvZ7QdCST8Ocz0d69qwlOSArIz2eZIjU+7EPHVNVw+PctNOKa5+2mb/XoX+WH1UjPTwaxitz0VTX6zbp86JclmQNsUKQL7bellsq/eMBSZmuXFkHMofSYNo3rdBRCUayVZc1hjs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=KQz6GnBB; arc=none smtp.client-ip=115.124.30.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="KQz6GnBB" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1773890657; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=Z8ArazpuHzwIU8/sGdkPDAUgZ5Tq6d2MPt9c5EGHyCA=; b=KQz6GnBBMvedaRsev9/OQtPcB9zHuccC9Xvw9Lfpl5oEC6CILwo3iss6nzZ7gBYUq0DyKiy8oNN7I8BXk8CvpS4Ra4Ntz17+8Ft4i+9aR4DUfm+8TZce6KhWACqlmqrhFvSc4hVYj48NX113JvNip9AA7uJznO9FxygH1KMXEeY= 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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