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 AFE2434B69F for ; Wed, 7 Jan 2026 17:21:34 +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=1767806494; cv=none; b=Ka+kRGxeu5zrs/SSini6QM1/1VnnZ0nnm12s3XxUnTylzJI1DV6g7eb/rx57fTM6LucxdoqFgMFoVsLsGaNTKxt3/2WveN88bmBFkx/Wa4LuPNTBxBdvfSaHUidkSEtBxwneY4B6MJrTv8tucnvjDnrKTO0etVALNpInpmoYZeo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767806494; c=relaxed/simple; bh=2L3XN5Fzxdseua4NJChz95Elf3DPbtCeUcs39ytTzaY=; h=Date:To:From:Subject:Message-Id; b=hYLSiXsNwfQExF2bBLD/A1nFB6JCpQk691Ti3DMidZuvlnGdJAFLj7IuQ474KhKMq/ruVWS7SUon8IQuT4KJuj5633yhosNkNyUF864hvTjjSEZMP2QO5FwKqgintnDSvxiEKn7N/RSGnrQe4zDrVODff3YVpw/karSsN+P0DHw= 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=R78B5um6; 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="R78B5um6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33EDAC4CEF7; Wed, 7 Jan 2026 17:21:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1767806493; bh=2L3XN5Fzxdseua4NJChz95Elf3DPbtCeUcs39ytTzaY=; h=Date:To:From:Subject:From; b=R78B5um6C0yJ58c2Cq4Pi0dhXjag1LGHZIWud6qMd6GFks9jfN/Jx6jVb6WoUQSWN smnxw8tZ0VWfKFCVJ3YRenOXI7bnr/7oz6UfpoMi+ul6T4Ak32Anv94Rye7TQ16MWg Kn5Gh2BV/qwPS9vOIXR94q+lAiB+/0AWByqHmrbs= Date: Wed, 07 Jan 2026 09:21:32 -0800 To: mm-commits@vger.kernel.org,vbabka@suse.cz,Usama.Anjum@arm.com,surenb@google.com,shuah@kernel.org,ryan.roberts@arm.com,rppt@kernel.org,pabeni@redhat.com,mhocko@suse.com,lorenzo.stoakes@oracle.com,linyunsheng@huawei.com,Liam.Howlett@oracle.com,jhubbard@nvidia.com,jgg@nvidia.com,david@kernel.org,broonie@kernel.org,kevin.brodsky@arm.com,akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-mm-remove-flaky-header-check.patch added to mm-new branch Message-Id: <20260107172133.33EDAC4CEF7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: selftests/mm: remove flaky header check has been added to the -mm mm-new branch. Its filename is selftests-mm-remove-flaky-header-check.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-remove-flaky-header-check.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Kevin Brodsky Subject: selftests/mm: remove flaky header check Date: Wed, 7 Jan 2026 16:48:36 +0000 Commit 96ed62ea0298 ("mm: page_frag: fix a compile error when kernel is not compiled") introduced a check to avoid attempting to build the page_frag module if is missing. Unfortunately this check only works if KDIR points to /lib/modules/... or an in-tree kernel build. It always fails if KDIR points to an out-of-tree build (i.e. when the kernel was built with O=... make) because only generated headers are present under $KDIR/include/ in that case. A recent commit switched KDIR to default to the kernel's build directory, so that check is no longer justified. Link: https://lkml.kernel.org/r/20260107164842.3289559-3-kevin.brodsky@arm.com Signed-off-by: Kevin Brodsky Reviewed-by: Mark Brown Cc: Paolo Abeni Cc: Yunsheng Lin Cc: David Hildenbrand Cc: Jason Gunthorpe Cc: John Hubbard Cc: "Liam R. Howlett" Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Ryan Roberts Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Usama Anjum Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/Makefile | 4 ---- 1 file changed, 4 deletions(-) --- a/tools/testing/selftests/mm/Makefile~selftests-mm-remove-flaky-header-check +++ a/tools/testing/selftests/mm/Makefile @@ -46,12 +46,8 @@ CFLAGS += -U_FORTIFY_SOURCE KDIR ?= $(if $(O),$(O),$(realpath ../../../..)) ifneq (,$(wildcard $(KDIR)/Module.symvers)) -ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h)) TEST_GEN_MODS_DIR := page_frag else -PAGE_FRAG_WARNING = "missing page_frag_cache.h, please use a newer kernel" -endif -else PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first" endif _ Patches currently in -mm which might be from kevin.brodsky@arm.com are x86-xen-simplify-flush_lazy_mmu.patch powerpc-mm-implement-arch_flush_lazy_mmu_mode.patch sparc-mm-implement-arch_flush_lazy_mmu_mode.patch mm-clarify-lazy_mmu-sleeping-constraints.patch mm-introduce-config_arch_has_lazy_mmu_mode.patch mm-introduce-generic-lazy_mmu-helpers.patch mm-bail-out-of-lazy_mmu_mode_-in-interrupt-context.patch mm-enable-lazy_mmu-sections-to-nest.patch arm64-mm-replace-tif_lazy_mmu-with-is_lazy_mmu_mode_active.patch powerpc-mm-replace-batch-active-with-is_lazy_mmu_mode_active.patch sparc-mm-replace-batch-active-with-is_lazy_mmu_mode_active.patch x86-xen-use-lazy_mmu_state-when-context-switching.patch mm-add-basic-tests-for-lazy_mmu.patch mm-add-basic-tests-for-lazy_mmu-fix-fix-fix.patch selftests-mm-default-kdir-to-build-directory.patch selftests-mm-remove-flaky-header-check.patch selftests-mm-pass-down-full-cc-and-cflags-to-check_configsh.patch selftests-mm-fix-usage-of-force_read-in-cow-tests.patch selftests-mm-introduce-helper-to-read-every-page-in-range.patch selftests-mm-fix-faulting-in-code-in-pagemap_ioctl-test.patch selftests-mm-fix-exit-code-in-pagemap_ioctl.patch selftests-mm-report-skip-in-pfnmap-if-a-check-fails.patch