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 5DF7D7EF0C for ; Fri, 26 Apr 2024 04:00:17 +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=1714104017; cv=none; b=NpW1pQ2v1WeGARLi5xXgbovOvX4FC7G9/LuDbnCf13bngA5I8tc3APV/i3XiD+EB0Ip1+qXUbHDehlPQMk2DIV5dz27F1rg2XDjYpJ96jeIbXg/pFvgPS4m2YdEcgONQmzgGj8fly14SxVfebkVs5KOFw+Q7qVa2ns+zGPYv94A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714104017; c=relaxed/simple; bh=iUEhsdG1HmB54okL4xcxHWxXf7A546MedYhKpsfJzVM=; h=Date:To:From:Subject:Message-Id; b=AigwsMC23tOsA8jFJeXt8mKyeuAW0fPinzZb0PuBoD/VJhR5+zcVCmX4fsM2sCQ6Gufw1dyq7LWevIOOJ/rGM8n2zWPNaM+pgKAIae5aQxwdvcz2QxC4L+aEJXVv2+49KFYt329ZKt+S/aoRi7Z/po/DV5K5aA/jZrZQoWxeryU= 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=sfNhRU7R; 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="sfNhRU7R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 35AF2C113CD; Fri, 26 Apr 2024 04:00:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1714104017; bh=iUEhsdG1HmB54okL4xcxHWxXf7A546MedYhKpsfJzVM=; h=Date:To:From:Subject:From; b=sfNhRU7Rc7NtSOXLEQoHrF/LFLzz0Uhv+ZBbZq73Bs2J2XED2965AOfN7vyGzqEnF uvXpajmZldjC1Zv7fCt4N+YhzbKuV70ZN7n9NJB5KBy2wU3w5Josy6rdTKeYrFxlTP pf9Tgh93bsn5adWJo5cQkPvLWR684BEXHYTdTco0= Date: Thu, 25 Apr 2024 21:00:16 -0700 To: mm-commits@vger.kernel.org,willy@infradead.org,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-make-is_free_buddy_page-take-a-const-argument.patch removed from -mm tree Message-Id: <20240426040017.35AF2C113CD@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: make is_free_buddy_page() take a const argument has been removed from the -mm tree. Its filename was mm-make-is_free_buddy_page-take-a-const-argument.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: "Matthew Wilcox (Oracle)" Subject: mm: make is_free_buddy_page() take a const argument Date: Tue, 26 Mar 2024 17:10:27 +0000 This function does not modify its argument; let the callers know that so they can make better optimisation decisions. Link: https://lkml.kernel.org/r/20240326171045.410737-6-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- include/linux/page-flags.h | 2 +- mm/page_alloc.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) --- a/include/linux/page-flags.h~mm-make-is_free_buddy_page-take-a-const-argument +++ a/include/linux/page-flags.h @@ -1088,7 +1088,7 @@ static inline bool is_page_hwpoison(cons return folio_test_hugetlb(folio) && PageHWPoison(&folio->page); } -extern bool is_free_buddy_page(struct page *page); +bool is_free_buddy_page(const struct page *page); PAGEFLAG(Isolated, isolated, PF_ANY); --- a/mm/page_alloc.c~mm-make-is_free_buddy_page-take-a-const-argument +++ a/mm/page_alloc.c @@ -6745,16 +6745,16 @@ void __offline_isolated_pages(unsigned l /* * This function returns a stable result only if called under zone lock. */ -bool is_free_buddy_page(struct page *page) +bool is_free_buddy_page(const struct page *page) { unsigned long pfn = page_to_pfn(page); unsigned int order; for (order = 0; order < NR_PAGE_ORDERS; order++) { - struct page *page_head = page - (pfn & ((1 << order) - 1)); + const struct page *head = page - (pfn & ((1 << order) - 1)); - if (PageBuddy(page_head) && - buddy_order_unsafe(page_head) >= order) + if (PageBuddy(head) && + buddy_order_unsafe(head) >= order) break; } _ Patches currently in -mm which might be from willy@infradead.org are doc-improve-the-description-of-__folio_mark_dirty.patch buffer-add-kernel-doc-for-block_dirty_folio.patch buffer-add-kernel-doc-for-try_to_free_buffers.patch buffer-fix-__bread-and-__bread_gfp-kernel-doc.patch buffer-add-kernel-doc-for-brelse-and-__brelse.patch buffer-add-kernel-doc-for-bforget-and-__bforget.patch buffer-improve-bdev_getblk-documentation.patch doc-split-bufferrst-out-of-api-summaryrst.patch doc-split-bufferrst-out-of-api-summaryrst-fix.patch mm-memory-failure-remove-fsdax_pgoff-argument-from-__add_to_kill.patch mm-memory-failure-pass-addr-to-__add_to_kill.patch mm-return-the-address-from-page_mapped_in_vma.patch mm-make-page_mapped_in_vma-conditional-on-config_memory_failure.patch mm-memory-failure-convert-shake_page-to-shake_folio.patch mm-convert-hugetlb_page_mapping_lock_write-to-folio.patch mm-memory-failure-convert-memory_failure-to-use-a-folio.patch mm-memory-failure-convert-hwpoison_user_mappings-to-take-a-folio.patch mm-memory-failure-add-some-folio-conversions-to-unpoison_memory.patch mm-memory-failure-use-folio-functions-throughout-collect_procs.patch mm-memory-failure-pass-the-folio-to-collect_procs_ksm.patch fscrypt-convert-bh_get_inode_and_lblk_num-to-use-a-folio.patch f2fs-convert-f2fs_clear_page_cache_dirty_tag-to-use-a-folio.patch memory-failure-remove-calls-to-page_mapping.patch migrate-expand-the-use-of-folio-in-__migrate_device_pages.patch userfault-expand-folio-use-in-mfill_atomic_install_pte.patch mm-remove-page_mapping.patch mm-remove-page_cache_alloc.patch mm-remove-put_devmap_managed_page.patch mm-convert-put_devmap_managed_page_refs-to-put_devmap_managed_folio_refs.patch mm-remove-page_ref_sub_return.patch gup-use-folios-for-gup_devmap.patch mm-add-kernel-doc-for-folio_mark_accessed.patch mm-remove-pagereferenced.patch mm-simplify-thp_vma_allowable_order.patch