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b=qnKdhq7ZC+G68GWkOy0XtdMNfq+cE1+I4PhfcucyCKNZDbeR4nyhl2iS+k+EuZLxH Tu0BPdwCMZe1DRvY5CvHPb4F80ALcXQJ2hs7xWpNsqDWTVSG5YMnUCz0SSilqQGf/T +E62zCUu83rI6F7u/V9+tRjeiyansR+NEdfraVWXwdHtd4w/KmxKP/Ia2cKaUQIZ/C zn+l0gO/cBBykGd/2iQS51w4USoW3jqJetOhIYxn5XDuEa3nCpNVifiBhe+OH3nLYb hiDfHH0M8JCruDUFwIAwY2VLXBg11ol4LV1f7r6Y1+ZlWZodxeGxr61rVdNsrZx7b8 sxQvA/ku8tqOw== From: Pratyush Yadav To: Chenghao Duan Cc: pasha.tatashin@soleen.com, rppt@kernel.org, pratyush@kernel.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, jianghaoran@kylinos.cn Subject: Re: [PATCH v1 2/3] mm/memfd_luo: remove unnecessary memset in zero-size memfd path In-Reply-To: <20260319012845.29570-3-duanchenghao@kylinos.cn> (Chenghao Duan's message of "Thu, 19 Mar 2026 09:28:44 +0800") References: <20260319012845.29570-1-duanchenghao@kylinos.cn> <20260319012845.29570-3-duanchenghao@kylinos.cn> Date: Fri, 20 Mar 2026 10:04:28 +0000 Message-ID: <2vxzeclebyvn.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Stat-Signature: ssifppj3qzz1ho6i381axtzidooekdah X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: 36AE38000E X-HE-Tag: 1774001073-348387 X-HE-Meta: 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 15pb56Af HWa7d/QSFpcEzD2Ot+aDI45TcyUz3sSHa1jZsqaHKhL4As0SdT7jYLpdm00FoIoJFNXQ6ADuqmI6kj/8uJUDdknOEG/oMBJb99j0WFLOSmHK4gi7SFLV7VnKO57aJpdfeaXK6bS2nf0PEVED11BvaEO1dek7gSr8hpvEEfN9B2UU5gzwngBVPwFRPKYK1Ghw77zwxJ2vHVa+lTfZn4xwPq5xRrlVYpKNRlgYJT8KBCyUNKNEbZ5L3+9m1Ww== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Mar 19 2026, Chenghao Duan wrote: > The memset(kho_vmalloc, 0, sizeof(*kho_vmalloc)) call in the zero-size > file handling path is unnecessary because the allocation of the ser > structure already uses the __GFP_ZERO flag, ensuring the memory is > already zero-initialized. > > Signed-off-by: Chenghao Duan Reviewed-by: Pratyush Yadav [...] -- Regards, Pratyush Yadav