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 151DD28EB for ; Mon, 6 May 2024 00:45:34 +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=1714956335; cv=none; b=l8b/QEPXSTXuA68X/c5A+N5fRxIhqlcx3oYIaqq1cTW5Ux+cHEr3nhHNEcbuAPyUIqsnP2zuPu5nmwlVF7R//rFk3tmIQUff6skVfjEz2diuT2jtS2c3n3R7oqox+2hvpXD3WMN9wk50ZsdKPxht1uCGVm9zO5/HJejUDXR+NGM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714956335; c=relaxed/simple; bh=HAj68pfIIguJFnX4MfnVNV3C0SxU8B5N420TdWK/pEA=; h=Date:To:From:Subject:Message-Id; b=ES3KvV99MGZJIi+U36zzQyP5zEuRzlt0FDDl2jPfmWH2H7eCq/7RVTX0i/kt76Z83gC/PE+ujeseH6J/p3WNHpNrfpZXcDZHUSH+hPexwdt+9GTmU0z5tbH3pNx6m1zPJtMntOQWLulMpPRmQ20mKSuX7LkWQLuuHm3xZ1GFL4s= 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=UHiVLWhJ; 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="UHiVLWhJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79C25C113CC; Mon, 6 May 2024 00:45:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1714956334; bh=HAj68pfIIguJFnX4MfnVNV3C0SxU8B5N420TdWK/pEA=; h=Date:To:From:Subject:From; b=UHiVLWhJR8f5WhcA6s2usD+RF/+wUJmf9pTU8zAI8R6BoSIxm6WLecKSDNCqVJlJx tVEs5RhI36be0lDq3sbOFT2/5hEeo8ma9zBVfs5I0peJwC4JG+r4DTS/di+SCRtUmd 90mmS7TuUoXtb0vuMNhFxKqtCpb4rf5iklEITJoQ= Date: Sun, 05 May 2024 17:45:33 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,willy@infradead.org,jhubbard@nvidia.com,baolin.wang@linux.alibaba.com,akpm@linux-foundation.org,david@redhat.com,akpm@linux-foundation.org From: Andrew Morton Subject: [folded-merged] mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation-v2.patch removed from -mm tree Message-Id: <20240506004534.79C25C113CC@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation-v2 has been removed from the -mm tree. Its filename was mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation-v2.patch This patch was dropped because it was folded into mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation.patch ------------------------------------------------------ From: David Hildenbrand Subject: mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation-v2 Date: Mon, 22 Apr 2024 21:42:17 +0200 * Also document concurrent removal from the page cache (likely we should return -EBUSY -- but likely it doesn't really matter). * Reference fd4a7ac32918 in patch description Link: https://lkml.kernel.org/r/20240422194217.442933-1-david@redhat.com Signed-off-by: David Hildenbrand Reviewed-by: Zi Yan Reviewed-by: John Hubbard Cc: Andrew Morton Cc: John Hubbard Cc: Matthew Wilcox Cc: Baolin Wang Signed-off-by: Andrew Morton --- mm/huge_memory.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/mm/huge_memory.c~mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation-v2 +++ a/mm/huge_memory.c @@ -2975,7 +2975,8 @@ bool can_split_folio(struct folio *folio * * Returns 0 if the huge page was split successfully. * - * Returns -EAGAIN if the folio has unexpected reference (e.g., GUP). + * Returns -EAGAIN if the folio has unexpected reference (e.g., GUP) or if + * the folio was concurrently removed from the page cache. * * Returns -EBUSY when trying to split the huge zeropage, if the folio is * under writeback, if fs-specific folio metadata cannot currently be _ Patches currently in -mm which might be from david@redhat.com are drivers-virt-acrn-fix-pfnmap-pte-checks-in-acrn_vm_ram_map.patch mm-pass-vma-instead-of-mm-to-follow_pte.patch mm-follow_pte-improvements.patch mm-allow-for-detecting-underflows-with-page_mapcount-again.patch mm-rmap-always-inline-anon-file-rmap-duplication-of-a-single-pte.patch mm-rmap-add-fast-path-for-small-folios-when-adding-removing-duplicating.patch mm-track-mapcount-of-large-folios-in-single-value.patch mm-improve-folio_likely_mapped_shared-using-the-mapcount-of-large-folios.patch mm-make-folio_mapcount-return-0-for-small-typed-folios.patch mm-memory-use-folio_mapcount-in-zap_present_folio_ptes.patch mm-huge_memory-use-folio_mapcount-in-zap_huge_pmd-sanity-check.patch mm-memory-failure-use-folio_mapcount-in-hwpoison_user_mappings.patch mm-page_alloc-use-folio_mapped-in-__alloc_contig_migrate_range.patch mm-migrate-use-folio_likely_mapped_shared-in-add_page_for_migration.patch sh-mm-cache-use-folio_mapped-in-copy_from_user_page.patch mm-filemap-use-folio_mapcount-in-filemap_unaccount_folio.patch mm-migrate_device-use-folio_mapcount-in-migrate_vma_check_page.patch trace-events-page_ref-trace-the-raw-page-mapcount-value.patch xtensa-mm-convert-check_tlb_entry-to-sanity-check-folios.patch mm-debug-print-only-page-mapcount-excluding-folio-entire-mapcount-in-__dump_folio.patch documentation-admin-guide-cgroup-v1-memoryrst-dont-reference-page_mapcount.patch mm-ksm-rename-get_ksm_page_flags-to-ksm_get_folio_flags.patch mm-ksm-remove-page_mapcount-usage-in-stable_tree_search.patch fs-proc-task_mmu-convert-pagemap_hugetlb_range-to-work-on-folios.patch fs-proc-task_mmu-convert-smaps_hugetlb_range-to-work-on-folios.patch mm-huge_memory-improve-split_huge_page_to_list_to_order-return-value-documentation.patch mm-khugepaged-replace-page_mapcount-check-by-folio_likely_mapped_shared.patch selftests-mm-cow-flag-vmsplice-hugetlb-tests-as-xfail.patch mm-hugetlb-document-why-hugetlb-uses-folio_mapcount-for-cow-reuse-decisions.patch selftests-mm-gup_longterm-test-unsharing-logic-when-r-o-pinning.patch