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From: "Kunwu Chan" Message-ID: <2b9ae12de845ad1c7070c797ed1214602e548db9@linux.dev> TLS-Required: No Subject: Re: [PATCH 1/5] selftests/damon: prevent cross-context state pollution in DamonCtx To: "SeongJae Park" Cc: "SeongJae Park" , shuah@kernel.org, damon@lists.linux.dev, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, "Kunwu Chan" , "Wang Lian" , "Kunwu Chan" In-Reply-To: <20260531163050.98908-1-sj@kernel.org> References: <20260531163050.98908-1-sj@kernel.org> X-Migadu-Flow: FLOW_OUT X-Stat-Signature: ayarsr8pagu4bhwp3qsqyf8j865y46j4 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 89F27100010 X-Rspam-User: X-HE-Tag: 1780279912-715073 X-HE-Meta: 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 86WSjO+j v/Su24So+D9Pxtuz+GjkJDDTnlIZ6P4pgkVd64HKRAaYMynpX7vMV8SgwmKfIvPIYykjEGKc8Q0JyaJtnJaitHtvjepVh6aJs7FkZ/jyyZjAePOqj6hMm20AJVETGr19f9Uo/6FOljn8Zx17imIi4HFshM5gPUyqbklGoqqo+OtaHQdI+yR8oQTlo25yzn4ZS9W8/sBFsiIb3iZ1Hc5G1i/eyuf7+/VcMtaSlGx+xI60mxeNCvZVBjZtcJlNEYqC+qSHcoiLqJBgnVcdCpJ096MBYEW52oVXhXCjN+361kA+ifeKiT18Q6o2iQoVmM1ikbS/hCRZCpwblaT7mlbCrqTy4XrktMCxh6ia5 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: June 1, 2026 at 12:30 AM, "SeongJae Park" wrote: >=20 >=20On Sun, 31 May 2026 17:17:20 +0800 Kunwu Chan = wrote: >=20 >=20>=20 >=20> From: Kunwu Chan > >=20=20 >=20> DamonCtx.__init__() uses mutable default values for > > monitoring_attrs, targets, and schemes. In Python these are > > evaluated once at function definition time, so multiple > > DamonCtx instances can unintentionally share the same lists > > and DamonAttrs instance. > >=20=20 >=20> Replace the mutable defaults with None sentinels and > > initialize the objects when needed. > >=20 >=20Nice change, thank you! > Thanks, SJ. =20 >=20>=20 >=20> Co-developed-by: Wang Lian > > Signed-off-by: Wang Lian > > Signed-off-by: Kunwu Chan > >=20 >=20checkpatch.pl complains as below: >=20 >=20WARNING: From:/Signed-off-by: email address mismatch: 'From: Kunwu Ch= an ' !=3D 'Signed-off-by: Kunwu Chan ' >=20 >=20Other than that, >=20 >=20Reviewed-by: SeongJae Park >=20 I'll=20fix the email mismatch and send a v2 to make the addresses consist= ent. I'll also add your Reviewed-by tag. Thanks,=20 Kunwu >=20Thanks, > SJ >=20 >=20[...] >