From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86D103563F0 for ; Fri, 20 Mar 2026 10:04:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774001072; cv=none; b=g3R0Ayvdw7bFlLl+aJu+QBqJoMSMtVDoqtetpjNnSP/scN8kGDJdURd2yyapZ4YEyBXW/3zlXmMaxprMRgdFudOgDUzk+BXFFr7U5ibU5+OFLypmCxW52pFPv66BUi8BMPW4KheyVhnJ3BzsPzVVvVap8GGdDOIX2TYIm0tWWYQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774001072; c=relaxed/simple; bh=LDVybf42Q2KTdg7Be2F4XoTTGe+eeaDsULIItrWRECs=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=rUJ1WlNuuI1y2FSFL1rAbNo5MJ7sOCk0ct7OahQ9pilbjyH1dKq6qB68yqSeaLuwF9liReS8PGn/dHAMMosXZJakBqDXlZ+hTamSU7jEGKDkGZqsvYN4qWCZ0AkFpyc9UmVIj9rW/KXMPniz0m5fZ1SGhlbt7hLyeCp3JpvgQmI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qnKdhq7Z; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qnKdhq7Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 681BBC4CEF7; Fri, 20 Mar 2026 10:04:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774001072; bh=LDVybf42Q2KTdg7Be2F4XoTTGe+eeaDsULIItrWRECs=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; 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) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain 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