From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 259913911BC for ; Wed, 29 Jul 2026 04:14:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785298460; cv=none; b=XIDxP3tROJtC1SvjhAXHkThhJSrxTcBCx/PkXQ9bS0oS+IPdyaZTPLseNlLVRvYVP/gogJpXGXTAQYho7Uz81YsSawJDRaDwCFxcgLs9oAVeXZrO2s0POYu8EfNu8EVM/CcZA8ua/nc058H4Ckys8Ea3340g4HIrDjTje/gyOnw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785298460; c=relaxed/simple; bh=a2JtukYASj5ooLyP028heyrTb+L3DQM9LnYZhvLGzvg=; h=Date:To:From:Subject:Message-Id; b=YeJRlIoPhJG/xpEuG9zXg5V+GRz0ruf6HRmBpnHQy4dDETg+PJF1k7C9YsfWFv3pPsXTxVtnJ8h82qZZPRO8kWqfy83ZVtH3CVyPVvUjmmguEvEVKCEpnu2NMv5B0Xevykl4n9DyG5VAAWruvFiiCMsmbJH4CYwq6QxWzypvMf8= 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=hvUpos4S; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="hvUpos4S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ECB281F000E9; Wed, 29 Jul 2026 04:14:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1785298459; bh=KZh9+1ZelximpuDc7q1I/AZ6VEWzKFMnvus48xPxzTg=; h=Date:To:From:Subject; b=hvUpos4STXAoCfkntUj8skoJ/mJYK8UF+IapeDdZm3NJusatUKIYJmJqzfswwQ9Ne WBh2MXKAeMj1P+B2/M5iuMvqaLuuUENur+BBjELXeCWRAaf+hMXL3y3vRGa3U5UDr1 Siio/wqWBIy21Oec4vJg03dTG5tjYlJEtxArPJiE= Date: Tue, 28 Jul 2026 21:14:18 -0700 To: mm-commits@vger.kernel.org,vbabka@kernel.org,usama.arif@linux.dev,rppt@kernel.org,ritesh.list@gmail.com,osalvador@suse.de,osalvador@kernel.org,npiggin@gmail.com,mpe@ellerman.id.au,maddy@linux.ibm.com,ljs@kernel.org,liam@infradead.org,fvdl@google.com,david@kernel.org,aneesh.kumar@linux.ibm.com,songmuchun@bytedance.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-mm_init-simplify-deferred_free_pages-migratetype-init.patch removed from -mm tree Message-Id: <20260729041418.ECB281F000E9@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/mm_init: simplify deferred_free_pages() migratetype init has been removed from the -mm tree. Its filename was mm-mm_init-simplify-deferred_free_pages-migratetype-init.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: Muchun Song Subject: mm/mm_init: simplify deferred_free_pages() migratetype init Date: Fri, 12 Jun 2026 11:58:49 +0800 deferred_free_pages() open-codes two loops to initialize the pageblock migratetype for a range of pages. Replace them with pageblock_migratetype_init_range() to remove the duplication and make the code clearer (Note that deferred_free_pages() may be called from atomic context). Link: https://lore.kernel.org/20260612035903.2468601-6-songmuchun@bytedance.com Signed-off-by: Muchun Song Acked-by: Mike Rapoport (Microsoft) Acked-by: Oscar Salvador Cc: "Aneesh Kumar K.V" Cc: David Hildenbrand Cc: Frank van der Linden Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Oscar Salvador (SUSE) Cc: "Ritesh Harjani (IBM)" Cc: Usama Arif Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/mm_init.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) --- a/mm/mm_init.c~mm-mm_init-simplify-deferred_free_pages-migratetype-init +++ a/mm/mm_init.c @@ -674,15 +674,15 @@ static inline void fixup_hashdist(void) static inline void fixup_hashdist(void) {} #endif /* CONFIG_NUMA */ -#ifdef CONFIG_ZONE_DEVICE +#if defined(CONFIG_ZONE_DEVICE) || defined(CONFIG_DEFERRED_STRUCT_PAGE_INIT) static __meminit void pageblock_migratetype_init_range(unsigned long pfn, - unsigned long nr_pages, int migratetype) + unsigned long nr_pages, int migratetype, bool atomic) { const unsigned long end = pfn + nr_pages; for (pfn = pageblock_align(pfn); pfn < end; pfn += pageblock_nr_pages) { init_pageblock_migratetype(pfn_to_page(pfn), migratetype, false); - if (IS_ALIGNED(pfn, PAGES_PER_SECTION)) + if (!atomic && IS_ALIGNED(pfn, PAGES_PER_SECTION)) cond_resched(); } } @@ -1142,7 +1142,7 @@ void __ref memmap_init_zone_device(struc compound_nr_pages(pfn, altmap, pgmap)); } - pageblock_migratetype_init_range(start_pfn, nr_pages, MIGRATE_MOVABLE); + pageblock_migratetype_init_range(start_pfn, nr_pages, MIGRATE_MOVABLE, false); pr_debug("%s initialised %lu pages in %ums\n", __func__, nr_pages, jiffies_to_msecs(jiffies - start)); @@ -1988,12 +1988,12 @@ static void __init deferred_free_pages(u if (!nr_pages) return; + pageblock_migratetype_init_range(pfn, nr_pages, mt, true); + page = pfn_to_page(pfn); /* Free a large naturally-aligned chunk if possible */ if (nr_pages == MAX_ORDER_NR_PAGES && IS_MAX_ORDER_ALIGNED(pfn)) { - for (i = 0; i < nr_pages; i += pageblock_nr_pages) - init_pageblock_migratetype(page + i, mt, false); __free_pages_core(page, MAX_PAGE_ORDER, MEMINIT_EARLY); return; } @@ -2001,11 +2001,8 @@ static void __init deferred_free_pages(u /* Accept chunks smaller than MAX_PAGE_ORDER upfront */ accept_memory(PFN_PHYS(pfn), nr_pages * PAGE_SIZE); - for (i = 0; i < nr_pages; i++, page++, pfn++) { - if (pageblock_aligned(pfn)) - init_pageblock_migratetype(page, mt, false); - __free_pages_core(page, 0, MEMINIT_EARLY); - } + for (i = 0; i < nr_pages; i++) + __free_pages_core(page + i, 0, MEMINIT_EARLY); } /* Completion tracking for deferred_init_memmap() threads */ _ Patches currently in -mm which might be from songmuchun@bytedance.com are selftests-mm-remove-obsolete-hugetlb-vmemmap-test.patch