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Mon, 13 Jul 2026 04:39:54 -0700 (PDT) Date: Mon, 13 Jul 2026 07:39:53 -0400 From: Johannes Weiner To: Guopeng Zhang Cc: Andrew Morton , Roman Gushchin , Shakeel Butt , Stanislav Fort , Michal Hocko , Muchun Song , cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Guopeng Zhang Subject: Re: [PATCH] mm: memcg-v1: account vmpressure event allocations Message-ID: <20260713113953.GH276793@cmpxchg.org> References: <20260713085520.2953121-1-guopeng.zhang@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260713085520.2953121-1-guopeng.zhang@linux.dev> X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 62DCCC0005 X-Stat-Signature: ztcqd17awx6nu6tkdgn3zwix56ymn719 X-HE-Tag: 1783942796-50576 X-HE-Meta: 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 sWmjNUf+ 2G3nse2x32jtW4S5NeYGv+QHMVOK1Ook8QiOfVpSMgDZ4bjKP1WMMzFpLpWz8ZixSrtixbWgrlhVmoa7TAFVmUrQero2dzGvGEqUAhjzpOefi1+EDUfnQ6vZtLcr6/UJMVd4ukvccMV5ukkV+63KmxQemngp2irk59BgcsgnpC6xaqZsG4711NR6UaeoGL+Sotxsys+Mqyx+rt0wF5ajfEUd/2hjEWW1cwanDYJEVCx2Nn/eNQsJnv+NfC8p8nfejlzfrU2/WQfCNPwSWqXB4k+QfG+szMuYzUt6LFyYIexnmfArGFwr11XAx+k6ZB9COGLpfmvRv62KH237qs+SxiJLhafWrZbonjagCwG5RKbd4s1A3gxq2KpfMJTY6+SGBo4CO3JmE8sidozxwVEQlQjme7+u0w9irRVF7XMind9j8Jz7wcOqAyXziP0AJxvtLHdLpmaMSpcSD4u4= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jul 13, 2026 at 04:55:20PM +0800, Guopeng Zhang wrote: > From: Guopeng Zhang > > Commit 72797d218b43 ("mm/memcg: v1: account event registrations and drop > world-writable cgroup.event_control") accounted cgroup v1 event > registration allocations with GFP_KERNEL_ACCOUNT, but missed struct > vmpressure_event. > > Use GFP_KERNEL_ACCOUNT for this allocation as well. > > Fixes: 72797d218b43 ("mm/memcg: v1: account event registrations and drop world-writable cgroup.event_control") > Signed-off-by: Guopeng Zhang I guess :) Acked-by: Johannes Weiner