From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f176.google.com (mail-pl1-f176.google.com [209.85.214.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE50C1BDCF for ; Sun, 15 Sep 2024 15:23:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726413803; cv=none; b=kgu+61fDPOY34iaC5H/syb/8MXXvOo2I2DdhM2abtSEVLfJN/KBqsJA4QwxcRhvGZvspP1t6gXBcHaYslKvSDgxT9rfgjmg7ne8LfyJzxK2DzR9cjcVhlc8YBMT9vM4sTmozt18J3WcPkK2PSUH0cA/zwtujkKGPJeMt6iLJSc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726413803; c=relaxed/simple; bh=cWyU2oCBINgeg/6z8gCusynHlQtji1xra/8B+1a6uWA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=rhhhVHxAoh0mN8o7mj5OZtOc1EyqMiRhkZnwLz9RcN7A1Y+daGD/Cl91vC7fHJXPCEAmu3X2tC6MbSjiOpUCrnCOR7zqvdhDNfim9ZyAbUVlJjyPZImaIovHj5jlenCTfrDXCb6K8SH8gIKXHCANIekzt3yoRbV6xY16QidxrEo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=egTy+fCJ; arc=none smtp.client-ip=209.85.214.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="egTy+fCJ" Received: by mail-pl1-f176.google.com with SMTP id d9443c01a7336-2059112f0a7so21400835ad.3 for ; Sun, 15 Sep 2024 08:23:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1726413799; x=1727018599; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=uhvaz0JLUiJoNY/KYzXAGWK5f7HAnmy5khsmGgx/aSw=; b=egTy+fCJmnpT2cyiZa/2RZP8ZPOVor1TA22umIQsKEK7SHALhPICP2LEgrZFIa+DCe s1BoRiE3YMkUiR9FTUe7YYdLcHRDq3/FhLYGWXqexqBaY2kDTmP8kxQFPJ46WpF2L05M rLL7/nqFSe+Pfc2r8eITOShJ2nDubYhDab5TGEb7ticovJK56V5lWmrTtmy3GuhsUl77 ISRcLDlh4zTHtvaZloB//N0ZNwovDkQKaVZeqepQW7248e4AeKjWJAnVBllObmGmrSRa qFSU+vkVqv0ZrUyewYko9FRAJCHjhQzhhkBQMcr0aJzJRbGXVZVSpdMJslSlfejSIM7u uITA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726413799; x=1727018599; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=uhvaz0JLUiJoNY/KYzXAGWK5f7HAnmy5khsmGgx/aSw=; b=ZwJdGRiZo3L6/pQiGWDrM2Y1kFDV+jbklPbvBn8whtqwBOEF2yZ/fx4uoWIJO9Pwuw 6w3QsapwTZt+1ccXYJ9LltRxyE4bx8smv1ZkUqAZMlbY/QyX9lgAKprafjVPxUcivW81 tWHsoUtWU3l78WkjrW+Lp83v3gORIvoSn68mTbD/IRWV9rC+twn65sru48OMFNfyYI0J GGfCHnhHOFqqaMFp/WUJUmc9m5qE49FrRO1xopgB4D3Zf0nXl2awBedV1fuqRTll25Ms 96Rdwm2uJNCd5npBXspoOPSSS3P8uNTlniTV/+GeZrqT1VmbO/kmXTfHyBelx5ohTwwx qYVQ== X-Gm-Message-State: AOJu0YyVUyV/NuCvK8zeZdZxgtK9pe00R5174j2Ss/pJComIUnVueE+1 5mp2mbuQwzj8/JdTWasSrsSRk0dJCc5VT6gsRXLt5A0dNXo/ApI1wwD0t/Byz5UyUl8+iCS9vrn o X-Google-Smtp-Source: AGHT+IHMFUo/rBJlR50UHaTUJooWDLsNALZGTBK5f8pHnTG6qfmlTpPuRFxv95g/mX9cInWpwq5i8w== X-Received: by 2002:a17:903:444c:b0:206:8c18:a538 with SMTP id d9443c01a7336-20782a69a99mr112446865ad.32.1726413799211; Sun, 15 Sep 2024 08:23:19 -0700 (PDT) Received: from localhost.localdomain ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-207964a5ec4sm22083755ad.232.2024.09.15.08.23.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Sep 2024 08:23:18 -0700 (PDT) From: Jens Axboe To: io-uring@vger.kernel.org Cc: cliang01.li@samsung.com Subject: [PATCHSET 0/2] Shrink io_mapped_ubuf size Date: Sun, 15 Sep 2024 09:22:33 -0600 Message-ID: <20240915152315.821382-1-axboe@kernel.dk> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi, This shrinks it from (now) 48 bytes to 32 bytes. No ill effects observed in terms of performance. -- Jens Axboe