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Fri, 29 Aug 2025 09:30:17 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id khpaKylzsWgdNQAAD6G6ig (envelope-from ); Fri, 29 Aug 2025 09:30:17 +0000 Message-ID: <5e3bd766-0845-4d7a-acf3-1493eb925451@suse.cz> Date: Fri, 29 Aug 2025 11:30:17 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/page_alloc: only set ALLOC_HIGHATOMIC for __GPF_HIGH allocations Content-Language: en-US To: Sergey Senozhatsky , Andrew Morton , Thadeu Lima de Souza Cascardo Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Mel Gorman , kernel-dev@igalia.com, Helen Koike , Matthew Wilcox , Thierry Reding , neil@brown.name References: <20250814172245.1259625-1-cascardo@igalia.com> <10cdada2-f28f-4868-b821-4a13ed627e76@suse.cz> <77058118-b481-4c45-8f86-d9a67ea6a187@suse.cz> From: Vlastimil Babka Autocrypt: addr=vbabka@suse.cz; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Action: no action X-Rspamd-Queue-Id: 943DD140004 X-Rspam-User: X-Stat-Signature: bkpnatybq9ooaxkmfjazw6559brb8mgc X-Rspamd-Server: rspam09 X-HE-Tag: 1756459819-759632 X-HE-Meta: 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 5jUAcxpV dexFz1N4C47AthvlMsdSUFdFvTeOFMa1TiHtZENmDIfM7caiqcSAvVmVkbFIXWqxOoftVLD+qJivSZIXi5XyjoQlL+69gLTRpWr4pJy2Ej1OxhkHLVcJJaFQBw2G1Dx8JWTNgpJyRTbYTUGcuki4XSbnpBsvaMXUGhrGEvU5PEmG1rr1irm6R+yx8YufCjnIe3Psr9el+Co9gfRhZjr5+2bSfX9xbMV0Sh8CPSlooajzw9bEnxSRMqmncHcuDtpoTJrooLSZKiDZOlZdDlDQ6YX+JGqGVjr3awFmDdTNkoe5o6J3KP0PGThybCgt7Pd6IgeeDIkUP5ZAmARNdeuGor6Zxo/r078eEVjG3kWL5Xcuvry72R9uzLgBh7DoJBClcCkcETDXbJ2n+Gr5PYP65pyng16dSJN6mQeXxgM9jNU/Md+yYy6WxBFCesMeoNkWea/6lI7+IOO+J8LU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/29/25 10:56, Sergey Senozhatsky wrote: > On (25/08/29 10:38), Vlastimil Babka wrote: >> On 8/29/25 10:36, Vlastimil Babka wrote: >> > On 8/14/25 19:22, Thadeu Lima de Souza Cascardo wrote: > [..] >> > Agreed with others that this change matches the original intention and it >> > must have been an oversight. Also found nothing to the contrary in the >> > original threads. >> >> Oops, forgot to add >> >> Reviewed-by: Vlastimil Babka > > Thank you! > > FWIW > Tested-by: Sergey Senozhatsky > > This needs Cc: stable@vger.kernel.org all the way down to 5.15, > as far as I can tell. If that problem bothers users of LTS kernels in that range, we can do that. I wonder a bit how it was only found out now as a regression in the browser/desktop environment test if it's that old? Is there another factor i.e. some new frequesnt source of allocations that trigger it?