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Wed, 10 Sep 2025 13:08:07 +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 /BQ0EDd4wWjGCAAAD6G6ig (envelope-from ); Wed, 10 Sep 2025 13:08:07 +0000 Date: Wed, 10 Sep 2025 14:08:01 +0100 From: Pedro Falcato To: "Liam R. Howlett" Cc: Andrew Morton , maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, David Hildenbrand , Lorenzo Stoakes , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Jann Horn , Charan Teja Kalla , shikemeng@huaweicloud.com, kasong@tencent.com, nphamcs@gmail.com, bhe@redhat.com, baohua@kernel.org, chrisl@kernel.org, Matthew Wilcox Subject: Re: [PATCH v1 4/9] mm/memory: Add tree limit to free_pgtables() Message-ID: <3pn4anukobmyhul2zw6cqwl4nvu47ecji4cldgsfer24p35k6s@km5dfxpzvzzf> References: <20250909190945.1030905-1-Liam.Howlett@oracle.com> <20250909190945.1030905-5-Liam.Howlett@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250909190945.1030905-5-Liam.Howlett@oracle.com> X-Rspamd-Action: no action X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 52DF74000B X-Stat-Signature: imeeuaatpbge3ic6cfgirc7rqu4gehn4 X-Rspam-User: X-HE-Tag: 1757509691-195221 X-HE-Meta: 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 Pyt6e989 jdRC4/mt+Un/5QpRsMZSn9KlyQJ4Ov7FWHYIAHNlqaZhsaLqkeDpzVtWQpPec9naTUYjlt50Nk7IzNSdObowYz9QfwyHh8kgZhTqPyln/pWhJTp2SPdOeWhteEkrjBjN28HKiHaiaLQPeiWFvloMbhFhmSWf7zGbTuQ9mJlXMAICk50xyghpoOK6ndjPgJnDZfRLCHABDQzYA+DPUIyYvr+lbICpZjeqjhIfpFFgdnmitOOXctr8VG4uvT9Yl4Bg+UEb7CMpYpXwVhxLd383pEiJbzRtaJ/NrjOpXIsQ/HVR5ttxMM3FpaPsIu+35FTwVycRNeQ/VM3z4m25EDpzJmhG/ujEsn+D5sMgJkJjNsFc5njGbnft2/UmKAGHIVJ+LSr2WzIwDMWhKM3G1buLZF5e1nEW6NzLZvLDx00qZxcwu7zI= 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 Tue, Sep 09, 2025 at 03:09:40PM -0400, Liam R. Howlett wrote: > The ceiling and tree search limit need to be different arguments for the > future change in the failed fork attempt. > > Add some documentation around free_pgtables() and the limits in an > attempt to clarify the floor and ceiling use as well as the new > tree_max. > > Test code also updated. > > No functional changes intended. > > Signed-off-by: Liam R. Howlett Reviewed-by: Pedro Falcato -- Pedro