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[209.85.208.54]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a7a3c8c02a8sm341479366b.115.2024.07.21.16.19.59 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 21 Jul 2024 16:20:00 -0700 (PDT) Received: by mail-ed1-f54.google.com with SMTP id 4fb4d7f45d1cf-5a167b9df7eso3112490a12.3 for ; Sun, 21 Jul 2024 16:19:59 -0700 (PDT) X-Received: by 2002:a50:cc8a:0:b0:5a4:6dec:cd3c with SMTP id 4fb4d7f45d1cf-5a479d6470amr2804096a12.37.1721603999287; Sun, 21 Jul 2024 16:19:59 -0700 (PDT) MIME-Version: 1.0 References: <20240721145415.fbeb01a853962ef91334f3d1@linux-foundation.org> In-Reply-To: <20240721145415.fbeb01a853962ef91334f3d1@linux-foundation.org> From: Linus Torvalds Date: Sun, 21 Jul 2024 16:19:42 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [GIT PULL] MM updates for 6.11-rc1 To: Andrew Morton Cc: linux-mm@kvack.org, mm-commits@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam03 X-Rspam-User: X-Rspamd-Queue-Id: A41434001E X-Stat-Signature: tjuto7p7rp8k3phgfmum9qtq8a5qrst3 X-HE-Tag: 1721604002-523424 X-HE-Meta: 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 Xc+5Xllm 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000159, 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 Sun, 21 Jul 2024 at 14:54, Andrew Morton wrote: > > - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN > walkers") is known to cause a performance regression > (https://lore.kernel.org/all/3acefad9-96e5-4681-8014-827d6be71c7a@linux.ibm.com/T/#mfa809800a7862fb5bdf834c6f71a3a5113eb83ff). > Yu has a fix which I'll send along later via the hotfixes branch. That commit "875fa64577da" does not exist. I think you are talking about commit bd225530a4c7, which is in 6.10 and came in from your last hotfixes pull. I'm assuming 875fa64577da was some commit ID it had before getting rebased or something? I'm also a bit confused about why you mention this, since neither the cause _nor_ the fix are in this pull request and you have the wrong commit ID. Linus