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Goncalves" , Andrew Morton , Mel Gorman , Thomas Gleixner , John Ogness Subject: Re: [PATCH] mm/page_alloc: Use write_seqlock_irqsave() instead write_seqlock() + local_irq_save(). Message-ID: <20230623105048.JLQRUbVk@linutronix.de> References: <20230621104034.HT6QnNkQ@linutronix.de> <0e9fc992-8e05-2e63-b3b1-d8d3ce89fc16@I-love.SAKURA.ne.jp> <20230621130641.-5iueY1I@linutronix.de> <20230621143421.BgHjJklo@linutronix.de> <20230623081250.h20rlLik@linutronix.de> <20230623095804.Zf03Kn7H@linutronix.de> <20230623104530.vNMEDv9d@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230623104530.vNMEDv9d@linutronix.de> X-Rspamd-Queue-Id: 3A9F61C0005 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: 1z3c57rypx7bchba6b8khurh6dcw4rbp X-HE-Tag: 1687517450-685177 X-HE-Meta: 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 CzRGgpIu wukjvvjDxqWbb6sdc9jE4STUoF7+3hoSSpj7rfoZHyA2zMy6vG/1emjegdRKvFvNnr2R90jZtarSCmdWYs2xiE0AHp7H3rjEkIwx8N59cPKwXCbQJcAagReKTrxglxFfkV9Ih5imqriiKMiI= 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: On 2023-06-23 12:45:31 [+0200], To Michal Hocko wrote: > > nothing in dmesg. What did I do wrong not to enter > __build_all_zonelists()? However, looking at mem_hotplug_begin() it gets triggered from acpi_hotplug_work_fn() which is completely fine. No lockdep complains. So it looks good. Sebastian