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([2a02:6b6f:e759:7e00:1047:5c2a:74d8:1f23]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4613930bdd8sm7809815e9.19.2025.09.16.13.50.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 16 Sep 2025 13:50:52 -0700 (PDT) Message-ID: <4c4e97c1-7f93-4c09-a235-ab169a998ef0@gmail.com> Date: Tue, 16 Sep 2025 21:50:51 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/1] fixup: alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output Content-Language: en-GB To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, vbabka@suse.cz, hannes@cmpxchg.org, rientjes@google.com, roman.gushchin@linux.dev, harry.yoo@oracle.com, shakeel.butt@linux.dev, 00107082@163.com, pyyjason@gmail.com, pasha.tatashin@soleen.com, souravpanda@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20250916160110.266190-1-surenb@google.com> From: Usama Arif In-Reply-To: <20250916160110.266190-1-surenb@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 9085E4000F X-Stat-Signature: zducdgj7jq17m63mg3nbxkj7usx1no3i X-Rspam-User: X-HE-Tag: 1758055854-728683 X-HE-Meta: U2FsdGVkX1+OJtfxxE4djPXhUhR5c5TgI7YwVC48nXhYIhZ2SzGanRf1opgWOeOdDsVzKEi2ezLF2XBzp1VedqNQEPNcwW4nNDA0f8ZyYDlDmsHnRZMM1U+ga6QnSgEAkLidI5fkflsQ2iX1XusQ8fDBOwEDIIj22eAVHA3Z9nmgbUfW973D0ix48L0/1Jh+ThSkhxNJsiJA0GgJ8iA9MnWoG6x6d8C0/cz+gBdMtMhefea7VC2njYmkEaqv5aPPihYZsrk+8o8vdmBGjYetsiftDDpCRukXJHAElkxg5CPcexFf7xAIt6xdUSBxGx9/F6D08CALvEjxKIkdfitNWBPtEPp4l0c6THUAsYVMSbecNCtglTy+GT16ACKmfHRwkQEtG8RDAouCHPKpPO4rk1kqO0gzWnkv88WBzECYJWCUv6h7VQqDvshX8feqczaaQzmWC6DiysQc4GzVUyL1aQU+4aOvNDcrbD3ONmPSl/8ZAfJcFZ8fnl1158LXiNFJSoPC55SnHysd7+SVTW8CpEiK/y6aap8JLG08+x0XJTComv9hrGi95Xscm5WapA5K431pKinssn87+eEmNglfbOCJxsqcJu7LQfSSjCEv5xorRx58NeDrPTm8rakJCDUEpd8tgeNHuB/0UVXv4wb84AeaRBdOSwCmumG1h6Jks2gVPE9aH4sFKgDOIIaZTpXsMzCq7Db/GA/XoTI5nnqjq5QwRcgbEp4vFTxmqozgjTvaaSapFH0SS5q0Ky4wIN5OBXIKR+FRyZcJCmoN8EljZw5OVD9Rkp9n8+PerM9V/4D5sTuSRJuuH/2wxDdFrIfVJTvZZCR+3DZSlk8HUgs2MWW62ewnMSXDnPmVw9kb3Ub2sfYOnMooKhE05J83kXgKvM7noOxajTrBj5rU+yAMkNamiQvSQPBZZ/nAYs2MxRMZpft4w037bI5E9Z4vrGtv9fHI7gBZ9bz2Mrl/1PE MIvN4kz5 vWCOBqbiUfvZVX/9ifaUYYHBYXriEHuKNIhcaLC/p0BUxTNjWy3VCz8b5nJas04uSUogyJrCIcAQlTqWlELfpaW9VTVGPpWmXaOOOMwpKew7xIT6H/2E11jCNdaUCTrNxqJ5pSERn7a6QHAvMB6729/mIzJUYNPdKjiB+e+Qq0A7GxKIKeR3kcaSRKxCf4EaR28sigOmhGgjYtka0cWTPJ6ads8c01pr8atu/hYbkxMkuaoQqbDh+XwgU6uD/qFoVansdBZ60x362BWdAS+6aAZM+M0Bjkbk4o3u4hV/yhGmA3JCz8x8Cs1L0IwZhVdAycExm83cIj1lCCClmL+SUkKs10kBNE+MDTjjwEpccvi1ZYu+K+CV9d0voJYLNHgbHee3Y6prMnunHqpyDPOPtPiCxk0Ojz8gL+BK2yStD8Vv+KIyCZzxqhj1gxnsuSi2O2yUNN69ZIkkKbOTsoUwiV498wqSleZRjDwFOPMWABQhGGnPYCvfXVG65IJhK0mrrGSfVQ3x9sfG4W7D5Y39xR1UNORi//AG7wiWpu+54YFCtn/t52nd89dwOyWjRRNPrl2CC9pQkmOgfZIZse9sXLjm3KtofliiH3yEAgWINt9Jx9bDfge/0SMIXsIRBa0sR6OSk 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 16/09/2025 17:01, Suren Baghdasaryan wrote: > Document new "accurate:no" marker. > > Fixes: 39d117e04d15 ("alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output") > Suggested-by: Andrew Morton > Signed-off-by: Suren Baghdasaryan > --- > Based on mm-new > > Documentation/filesystems/proc.rst | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst > index 1776a06571c2..17668f82ff1c 100644 > --- a/Documentation/filesystems/proc.rst > +++ b/Documentation/filesystems/proc.rst > @@ -1014,6 +1014,14 @@ If file version is 2.0 or higher then each line may contain additional > For example if the counters are not accurate, the line will be appended with > "accurate:no" pair. > > +Supported markers in v2: > +accurate:no > + Absolute values of the counters in this line are not s/values/value/ maybe? :)> + accurate because of the failure to allocate storage required s/storage required/memory/ > + to track some of the allocations made at this location. > + Deltas in these counters are accurate, therefore counters > + can be used to track allocation size and count changes. > + > Example output. > > :: > > base-commit: 199236646ffd82b5a5bcf2bca1579ea06cb0ae74