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[109.81.31.43]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-45ddb779eb6sm9198025e9.8.2025.09.05.04.02.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Sep 2025 04:02:50 -0700 (PDT) Date: Fri, 5 Sep 2025 13:02:49 +0200 From: Michal Hocko To: Kiryl Shutsemau Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , linux-mm@kvack.org, Usama Arif Subject: Re: [PATCH] tools/mm: Add madvise tool Message-ID: References: <20250904175729.1029735-1-kirill@shutemov.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 906CB1C0021 X-Stat-Signature: umw8ags5ufe7cgyuz47yxrrk45fwbxyz X-Rspam-User: X-HE-Tag: 1757070172-270245 X-HE-Meta: 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 nIRZa6oG KYoFJ7FjA4CDG8+6QlygK2r3OSOULnuyAZWukcdtublQIHz+RniJxisVUyl1e7SaJCDbQPOm27xXOycuzzjPgKBEvZqA5GABq+Dv1Bebz7Rc/NBPibqlgcU8Pu1zQAu+yXRsj7IB7Yf9OlmmE8m663pNpBR5X7bktOMnN0nzO8azBxH2RMHL7Bm2TOK1/qDSqylfdVUnzCcsz0YzzHUcoSdPF/CUtHAcB3v2Ze2+u/s8qOQbsQU7IdwM3OyJmj/yL3E9At6FbRv9G3yC+K8Ch4MMZS4rf/U5/ry8d9KweegzS2Vu7MIhfHBAyc3lwmtSpMRFC 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 Fri 05-09-25 11:21:30, Kirill A. Shutemov wrote: > On Fri, Sep 05, 2025 at 11:17:10AM +0200, Michal Hocko wrote: [...] > > Also would it make more sense to send the pidfd fd to the tool directly > > so that it can benefit from a racefree pid->fd translation? > > Hm. Do we have an easy way to open pidfd from shell? Not that I am aware of. > I am not sure we care that much about the race for this tool. Fair enough. -- Michal Hocko SUSE Labs