From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) (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 1EAF01EB3D for ; Tue, 17 Sep 2024 05:16:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726550191; cv=none; b=YBmhRt7wIOSeb8cu/1uP8jAd76drqL1h7o/gIQPqmyLRFJrU3xGYd+aZ37mtQ9qsC73IuoldPaMGofsTEb8DgAyCcFf3DrOnc+7KWoZHk28MnT650m/mwprTXvNCNRV2vWMszyZUlAB1Lpy6LQMF3vahiLhcVRN3q42j1MWlrFI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726550191; c=relaxed/simple; bh=OremXLnTyMUjs9f/UwkFzkvZ1jPHAzQczFz+Yr8WM6Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:From:In-Reply-To: Content-Type:References; b=gBBAirXcuZSeZY/k/k5UxFxgAI826xfEPHDBHF4e24L5Wle/5wqdRNVISWH63/x6xcrlNhMddLphE37xElGkH7SViyiF1335Ib9z1/CXYeOvwC1QMIq8SN1v36aq4TxjTRw5UoKIaelf+RJ2OAFhqbRVq9TycGk1nbizqrauE0Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=CO1oFkrk; arc=none smtp.client-ip=203.254.224.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="CO1oFkrk" Received: from epcas5p4.samsung.com (unknown [182.195.41.42]) by mailout3.samsung.com (KnoxPortal) with ESMTP id 20240917051624epoutp03b25ffba1117bd429d48a710669333331~18D7U_omv1419314193epoutp03e for ; Tue, 17 Sep 2024 05:16:24 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout3.samsung.com 20240917051624epoutp03b25ffba1117bd429d48a710669333331~18D7U_omv1419314193epoutp03e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1726550184; bh=k4y/Audt1ZfuGNls27V0GLlWTEkt7ok1Ah1BNaCMpj0=; h=Date:Subject:To:Cc:From:In-Reply-To:References:From; b=CO1oFkrkOIzfnTdG9neuYv3ADHnH8GYi1ywbAwPlJE4n2qY4scmVKrO3j0Py3qDHU rIsizTNg9zPOzWSRnJ5ejJcQaHR3eb9hXT0O/FSR/7D3cbrcpQnXWG8zYEUsgOKR7f 6tu4FrM8pvGIVYeOGsB3RgqFQ3H8tQIF2zAMEcsM= Received: from epsnrtp1.localdomain (unknown [182.195.42.162]) by epcas5p4.samsung.com (KnoxPortal) with ESMTP id 20240917051624epcas5p419fa0fc087c6c9fdf1e75df1e1ead5fc~18D7FWewa3082130821epcas5p4E; Tue, 17 Sep 2024 05:16:24 +0000 (GMT) Received: from epsmgec5p1-new.samsung.com (unknown [182.195.38.182]) by epsnrtp1.localdomain (Postfix) with ESMTP id 4X79471tDtz4x9Ps; Tue, 17 Sep 2024 05:16:23 +0000 (GMT) Received: from epcas5p2.samsung.com ( [182.195.41.40]) by epsmgec5p1-new.samsung.com (Symantec Messaging Gateway) with SMTP id C4.05.19863.7A019E66; Tue, 17 Sep 2024 14:16:23 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20240917051622epcas5p394a81dced67728a73b726e235eea6204~18D5R-VzQ0335703357epcas5p34; Tue, 17 Sep 2024 05:16:22 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240917051622epsmtrp24360cd1e03cfaa27f29625c2426ec616~18D5Rf8VL0112101121epsmtrp2p; Tue, 17 Sep 2024 05:16:22 +0000 (GMT) X-AuditID: b6c32a50-c73ff70000004d97-3a-66e910a7ffd8 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id FB.93.19367.6A019E66; Tue, 17 Sep 2024 14:16:22 +0900 (KST) Received: from [107.122.11.51] (unknown [107.122.11.51]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240917051621epsmtip11d29202a99091eba6ddff6f80895dcfb~18D4pGJS22374723747epsmtip1D; Tue, 17 Sep 2024 05:16:21 +0000 (GMT) Message-ID: <2ae9e6c7-3032-52a3-ba48-1f66dd66e723@samsung.com> Date: Tue, 17 Sep 2024 10:46:20 +0530 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCHSET 0/2] Shrink io_mapped_ubuf size Content-Language: en-US To: Jens Axboe , io-uring@vger.kernel.org Cc: cliang01.li@samsung.com From: Kanchan Joshi In-Reply-To: <20240915152315.821382-1-axboe@kernel.dk> Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFKsWRmVeSWpSXmKPExsWy7bCmhu5ygZdpBk9nslmsvtvPZnH672MW i3et51gcmD0uny316NuyitHj8ya5AOaobJuM1MSU1CKF1Lzk/JTMvHRbJe/geOd4UzMDQ11D SwtzJYW8xNxUWyUXnwBdt8wcoD1KCmWJOaVAoYDE4mIlfTubovzSklSFjPziElul1IKUnAKT Ar3ixNzi0rx0vbzUEitDAwMjU6DChOyM2533mAsuMFY8f3OKqYFxKWMXIyeHhICJxI7Omywg tpDAHkaJZc/Tuxi5gOxPjBJNvzYxwTmnL+6E67ix8SYjRGIno8T8Ox+ZIZy3jBKfpz4Am8Ur YCcxq+MZWAeLgKrEln8nmCHighInZz4BqxEVSJL4dXUOUA0Hh7CAmUTbBW6QMLOAuMStJ/OZ QGwRASuJAzeWs0DEpSXePrrHBFLOJqApcWFyKUiYE6jzwvU+dogSeYntb+eAnSMhcIldYtnK p6wQR7tInNpzjA3CFpZ4dXwLO4QtJfH53V6oeLbEg0cQ50sI1Ejs2NwH1Wsv0fDnBivIXmag vet36UPs4pPo/f0E7BwJAV6JjjYhiGpFiXuTYLaKSzycsQTK9pD4OaObDRLQnYwS117KT2BU mIUUJrOQPD8LyTezEBYvYGRZxSiVWlCcm56abFpgqJuXWg6P7uT83E2M4ESoFbCDcfWGv3qH GJk4GA8xSnAwK4nw2v5+mibEm5JYWZValB9fVJqTWnyI0RQYOxOZpUST84GpOK8k3tDE0sDE zMzMxNLYzFBJnPd169wUIYH0xJLU7NTUgtQimD4mDk6pBqauqBVc5Yc3xlsou6svbDMQqJ/x eYGTQmmY9i8ejonra9MELJpa/uy6kNp7fKrDUekue/5fMddLpVPkzqq07jjySKH2423TpGuq Jw03/H6gI1wp/uXm0wDPRdZmsivCpq9mfxQ2a4lGRb23cwmrwvUET16GkxxcH7Pml1n6/v11 +FhYu/XsUx/+cDJkRPTGmfjcUhfpXRXi53ezteX9AR15c+8M1vMGHfkz525/am7tmuH1t07v 8oFsgbTf+vud7gcdncjZ1vv25ukLX86V3v15SS1MzWp/Kv+iV5YtIcKezWWdXBsKt6RO2/V5 zVX7qfwRrR9q+fZqavOy2pW57FNgzVi9zXfz2qMzpwX9VmIpzkg01GIuKk4EAOju7LQNBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrELMWRmVeSWpSXmKPExsWy7bCSnO4ygZdpBue/yVmsvtvPZnH672MW i3et51gcmD0uny316NuyitHj8ya5AOYoLpuU1JzMstQifbsErozbnfeYCy4wVjx/c4qpgXEp YxcjJ4eEgInEjY03wWwhge2MEtu6hSDi4hLN136wQ9jCEiv/PQeyuYBqXjNKPDndCJbgFbCT mNXxDKyZRUBVYsu/E8wQcUGJkzOfsIDYogJJEnvuNzJ1MXJwCAuYSbRd4AYJMwPNv/VkPhOI LSJgJXHgxnIWiLi0xNtH95ggdnUySvzp/sMM0ssmoClxYXIpSA0n0JgL1/vYIerNJLq2djFC 2PIS29/OYZ7AKDQLyRWzkKybhaRlFpKWBYwsqxhFUwuKc9NzkwsM9YoTc4tL89L1kvNzNzGC g10raAfjsvV/9Q4xMnEwHmKU4GBWEuG1/f00TYg3JbGyKrUoP76oNCe1+BCjNAeLkjivck5n ipBAemJJanZqakFqEUyWiYNTqoFJ5vyVeu8vr7dFtqU8WHigidl5eduKkBs3b/8vT+Bbe059 TUuho8xPozYBn4OWRUU6U4RvPbG5sXL3s0Rp5vVXi2x/n/8tIWNc3/B4XbRdcMOGU4e/tPge 8zkddkvGu6NHOiXPYbdjfVhxjPPEfWoCTuufncl7mTK5OmJPwvlpVR3xWgsaG2Tcfs+Z531v j9Gl39V2uqt4PA3vVXPP9NwocYZnU5/VzEXsT37bLMtaxty8zr2yOoApYYvkl2lLGhKmuh3p FEzJN+9wnsTgtMhFPdFUMbPz7/O4c7z3G/f35S/imOv2NL1hy8RFh0T/HLuWqvsmSW5F026d jJsh89aETTbPM8w7IrDzPHfUvZ9KLMUZiYZazEXFiQAA+Rm85QIAAA== X-CMS-MailID: 20240917051622epcas5p394a81dced67728a73b726e235eea6204 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240915152336epcas5p13d091902fa4a858903a4d5cc59973c00 References: <20240915152315.821382-1-axboe@kernel.dk> On 9/15/2024 8:52 PM, Jens Axboe wrote: > Hi, > > This shrinks it from (now) 48 bytes to 32 bytes. No ill effects observed > in terms of performance. Reviewed-by: Kanchan Joshi