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smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=NVo64i6H; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BCDDB606D809; Wed, 4 Nov 2026 07:17:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=NVo64i6H Received: by smtp.kernel.org (Postfix) with ESMTPSA id D41C11F00A02; Wed, 4 Nov 2026 07:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793776646; bh=Ktg5izJKG60I2UPIEWlV3M+KtBzsylr/JSki197Myic=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=NVo64i6Hy2J2/JtCvmk7jr+3z3y7ow2D6wnKnOqR75VbQOb9ns/fhqmrpw5s7XOYO ZTaun93U9u+EennRsz2Y8jXTpQwUVEFNJNitiu/lrdfG6oB5tUfN6azMEZqBASF3x4 mFQNzpy2iyhPQpr6xRHRcw+L7u4a2kqD6r7eiaH2wuwZgH8BUcSWx6Rw1T7cEwdzD6 3UZE4EBgQ30QNryMbH64W+sdA1VoFuQWVHvj6re8m/2E1Htsx3rujkqFkF5WI3Wgru NjGR2wrqrbfeiV4B2GMLu/HCUi1LHyNM7CEsNxhhoX1rYOUsohwuY08qi+kjBHSPVq ZX1CgzNdOPl3A== Message-ID: Date: Wed, 4 Nov 2026 08:17:21 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/5] mm, page_alloc: several stable fixes To: Johannes Weiner , "Gregory Price (Meta)" , Zi Yan , Shakeel Butt , Mike Rapoport , David Hildenbrand , Oscar Salvador , "Matthew Wilcox (Oracle)" Cc: Suren Baghdasaryan , Michal Hocko , Brendan Jackman , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Josef Bacik , stable@vger.kernel.org References: <20261103-pgalloc-ai-hotfixes-v2-0-e0d2890ab74f@kernel.org> From: "Vlastimil Babka (SUSE)" Content-Language: en-US Autocrypt: addr=vbabka@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/3/26 17:16, Vlastimil Babka (SUSE) wrote: > A bunch of fixes from Josef, filtered for page allocator by David. > > I have tweaked some commit logs and a comment in one case. > > In v2 some were dropped as they were merged already, the last one was > changed to fix things differently. "mm/compaction: trust > zone->contiguous only in the span" was dropped due to lots of sashiko > feedback. compaction (as a pfn scanner) needs much more thought > > Based on page_alloc/for-next-fixes, to be applied there as well. Now done. > Signed-off-by: Vlastimil Babka (SUSE) > --- > Changes in v2: > - rebased on page_alloc/for-next-fixes > - dropped 3 patches that were already merged from Gregory > - dropped "mm/compaction: trust zone->contiguous only in the span" as it > needs more thougt > - in the last patch, remove the VM_BUG_ON_PAGE completely > - Link to v1: https://patch.msgid.link/20261027-pgalloc-ai-hotfixes-v1-0-9c7d1aca801e@kernel.org > > --- > Josef Bacik (4): > mm/page_alloc: clear ->private of deferred free pages > mm: page_frag: refill the cache for large fragments > mm: page_isolation: do not take slab pages for free > mm/memory_hotplug: resize zones under their seqlock > > Vlastimil Babka (SUSE) (1): > mm/page_alloc: remove the zone_spans_pfn() check from get_pfnblock_bitmap_bitidx() > > mm/memory_hotplug.c | 51 +++++++++++++++++++++++++++++++++++---------------- > mm/page_alloc.c | 3 ++- > mm/page_frag_cache.c | 21 +++++++++++++-------- > mm/page_isolation.c | 7 +++++++ > 4 files changed, 57 insertions(+), 25 deletions(-) > --- > base-commit: 743a99d7e339e81acaf76f3c902b23abb29abc15 > change-id: 20261027-pgalloc-ai-hotfixes-59bcd873a355 >