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[109.81.16.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a81b99127sm70429935e9.0.2026.04.30.08.32.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Apr 2026 08:32:41 -0700 (PDT) Date: Thu, 30 Apr 2026 17:32:40 +0200 From: Michal Hocko To: Andrew Morton Cc: Minchan Kim , hca@linux.ibm.com, linux-s390@vger.kernel.org, david@kernel.org, brauner@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, surenb@google.com, timmurray@google.com Subject: Re: [PATCH v2] mm: process_mrelease: introduce PROCESS_MRELEASE_REAP_KILL flag Message-ID: References: <20260429211359.3829683-1-minchan@kernel.org> <20260430074305.9d3389ed71af040acfe222de@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260430074305.9d3389ed71af040acfe222de@linux-foundation.org> On Thu 30-04-26 07:43:05, Andrew Morton wrote: > On Wed, 29 Apr 2026 14:13:59 -0700 Minchan Kim wrote: > > > Currently, process_mrelease() requires userspace to send a SIGKILL signal > > prior to invocation. This separation introduces a scheduling race window > > where the victim task may receive the signal and enter the exit path > > before the reaper can invoke process_mrelease(). > > Does process_mrelease() have a manpage? My googling was a fail. It does. Very well hidden in 884a7e5964e06 -- Michal Hocko SUSE Labs