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Tue, 27 Jan 2026 09:09:14 +0800 (CST) Received: from kwepemr500001.china.huawei.com (unknown [7.202.194.229]) by mail.maildlp.com (Postfix) with ESMTPS id C7C3640539; Tue, 27 Jan 2026 09:12:43 +0800 (CST) Received: from [10.174.179.179] (10.174.179.179) by kwepemr500001.china.huawei.com (7.202.194.229) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 27 Jan 2026 09:12:42 +0800 Message-ID: <496fe218-dca3-477b-89f4-0f71adb155f6@huawei.com> Date: Tue, 27 Jan 2026 09:12:42 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4] lib: xarray: free unused spare node in xas_create_range() To: Andrew Morton , Shardul B CC: , , , , , , , References: <20251204142625.1763372-1-shardul.b@mpiricsoftware.com> <19bf8d68cdb.ae2c0d37126486.8380742359510867201@mpiricsoftware.com> <20260126120451.0c28a6deb3ab532dfae40a24@linux-foundation.org> From: Jinjiang Tu In-Reply-To: <20260126120451.0c28a6deb3ab532dfae40a24@linux-foundation.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.174.179.179] X-ClientProxiedBy: kwepems500002.china.huawei.com (7.221.188.17) To kwepemr500001.china.huawei.com (7.202.194.229) X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 4103DC000A X-Stat-Signature: ujpkfj59xkiz6dxcwjdkodbp8sewf55w X-Rspam-User: X-HE-Tag: 1769476367-978488 X-HE-Meta: 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 +GCd1uWq jhaFPZFJovOSxiHy/ViylHEd5++P5molziaJAmAhRiKjDzGtA8zGnZ8qUSapMqX4KgX4CkdrGsJoEQIWuTx9/7KhH6ogCIsWIV5T/eej5E44078oV4glEzZ/HDDFlTH0tV3s7ibR0T73LVlYlkXDPkzWhny5e65KLkcp6DHsnnSZVC2stZaydjoRkTs5G7Fqv6v8OThcdxsPsHVFZ3HgZ9EZMrPUTf2orck1ioErn3IjuIwZWhcvZgApb6R+VSuJDEmvM0oZxmHGPt2KFx02Gf25hMIKODdiyI52Jfz+ZebtP7B3pQ4hfwEyQPeZG/Wtp4JEIw5cdV9uCvB1NcWwUpEIaH4R6T7nEzZ9EiLWSosREPv1vk4QKluKBsP/tC7+IKhS++u2SjYDM3XcgrNLGYHB8IPJjwR6+0zMKrP3pwgNuBT3dYA5OVT05YdYwmK2pui8rPqzuO19fhiQGAQb3tU9vk6h8h3x7FnAbSk6D+0OH6HQ= 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: 在 2026/1/27 4:04, Andrew Morton 写道: > On Mon, 26 Jan 2026 11:16:08 +0530 Shardul B wrote: > >> Hi Matthew, Andrew, >> >> >> Gently pinging this patch. I’ve checked the latest linux-next (next-20260123) and the akpm-unstable branches, and it doesn't appear to have been picked up yet. >> >> >> The patch has a Reviewed-by from David Hildenbrand and fixes a memory leak in the XArray library identified by syzbot. >> >> >> If there are no further concerns, could you please let me know if this is queued for the next cycle? > There are comments from Jinjiang Tu and Dev Jain which remain > unaddressed, please. Hi, Andrew The issue is another problem, independent ofShardul's patch. I have posted a patch to solve it. https://lore.kernel.org/linux-mm/20260121062243.1893129-1-tujinjiang@huawei.com > The leak is a rare and this is a minor problem, I believe? > > I'll queue the patch for some exposure and testing but it appears that > some additional consideration is needed before it should be progressed > further. >