From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f228.google.com (mail-dy1-f228.google.com [74.125.82.228]) (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 894DC3AEB37 for ; Wed, 13 May 2026 21:19:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.228 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778707142; cv=none; b=Y/iTlK2EQgnYLD2pfdsu9puInZHooI5xP7ZSmGpAJyztN75F/znAhYodRCU7fMpkHb84DDrzeMLe7/8611dao9H/fqCOXlpvZd8lVTEdIMf9XhfOXv4QycYH9evt2M0TdEWr5EhURhXb5t8XIW2O2o+lKwbf3BrTzFkLK1mYopw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778707142; c=relaxed/simple; bh=W+IZT4lm8eTvmuYi4jc8cI9w0GwrE2RFhKBcdt3CeAY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=I63by6edGMfjDkH31cVuqmu0wtNm7OPxGj9u2Jj2EFuuqisdhrEYC62r0/GdlBIhj53Js0nu9l2hlW5hHeCv1NI9puzwCx9GbdbC3y1s7aUgBqz3+t2SUmI3s+bzkfxtO/G68qv7ga0GtNaa34wwhNf05jXR8UZ6DH2ih2jnr/Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=purestorage.com; spf=fail smtp.mailfrom=purestorage.com; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b=GWL8gq6Y; arc=none smtp.client-ip=74.125.82.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=purestorage.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=purestorage.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b="GWL8gq6Y" Received: by mail-dy1-f228.google.com with SMTP id 5a478bee46e88-2bd5658b901so943729eec.3 for ; Wed, 13 May 2026 14:19:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=purestorage.com; s=google2022; t=1778707140; x=1779311940; 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=xFK5xCMLqXEdldmPRaE9fIROx7TOzGdWNTbY/u38MiE=; b=GWL8gq6YRQGAb4tz3rvymGJzW+kdq4qejN8TRK5cWLnoBSCvBOJMUs+OJpKKC7I55e /bP4LQvktN9VEGkpLq5fDsE7J9laJxKO8DxR1HhfF1oQOlf4R/uLnzVgnSagBh0bAYEU Tk4ORM+GyIUpfPy61CA4cJGqn5nakjlCCOF5EIoBO97BavMLXee5s2PxtDw9hldBCAUS z/ztmn54hErKMp/b5W+tUFQhgh/Q7jBemKvWHibpYBMGT1dOWy2vJxNeeAEvVYYSaGu1 dtVVsPcNCfR13tm+pxkabvRCVN5RiKWp61chrrJwPF+G3NHO/XkNctsJ7RF/sp7BngYq otjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778707140; x=1779311940; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=xFK5xCMLqXEdldmPRaE9fIROx7TOzGdWNTbY/u38MiE=; b=blUK1j6O9uM2UtBNTM+qOlj5FNZ7dFfu1quANu+mYA85Azu3ojAczUHtzARRPCNShO PjWGfy8roMRPyuXPnDxJ8T7XwUqNGl9kUv5zoX308VNaS55RTGBK70HHJ6hPdEj35MFr ijoxajPHpbfqx+iTKlO6StQpaJT8vIVV/TSehFTy5H41PjmiX1Fvcxklq7FoouOJ3P47 EK7aag5zFh5Q0S52Wo9ThJ2R/58aWSS3o9k7v3yC5Pbs9pcNXa09oaoRfjtB/TbyiVBb ts/4Uyq8b1rmXosOX1I/ulI6tQG8QgRdwTJzf9LBqpEuJ2/gU5f2COkDJzfS+1TIUPUC AwYA== X-Forwarded-Encrypted: i=1; AFNElJ9rUhu/I3+lDEsABJVrGwUafZeA6+p4iUz2kSLT8Z1aK4xlOvMGQAnRImh3xX1cPd1+mo9PFQ52P1MYHUM=@vger.kernel.org X-Gm-Message-State: AOJu0YyT1BZ80QEPqAsZIo+rv0OZ2KeADDd10x+9m5ZcQQBK5oiGvW3R 1dAR8KZLfXaQKB65A/YGe63QG+W5TuhdB54lN/VhfARYO4dLeflLMGNTLoBJuvEV6S4LA2Ztb25 aF8AZnS5BBF02RhGYkBtOMkMkdsFShKdFKJnr X-Gm-Gg: Acq92OGFdtl0+0JvNIyhBV+1lzPF0dWaxJVrk+4vA9ezJkImSEy/nVrdrw9kYC0r27h 3b9PL+EX7PUCWGAxbNrOPzV2evUoGFcXAjo7vPHr3TDtlw4dPgOugZ7P0CQyNqneV4peFsRMkNe 12Ofjwz4kr456C5W3yLBIY+8fxYRt68hnvjdCgBHvIy5mueto4+k5utsp+Re8b/hXod/rJS9FaM UjGD67uBxNVvVXt1ZALl0WguPAnJdFldKM1a79AJbwX1XSD/Nq1nvcYp+gx/60W8St0DsLhsjlr YYBS1SlfFbvzc1vDV8XENZxn8JW8iPrCxfuq6jhXV0CARa4Iz3zVf9dHcyxIGEdF3z83zgqE8ue iCk2622iVHy2g55BdvwFx4MI3CABE8wDhK2YezNKZAVLJV4lqtBHO4g== X-Received: by 2002:a05:7301:fa12:b0:2d4:62f0:b2e1 with SMTP id 5a478bee46e88-30114374c8fmr1424231eec.0.1778707139477; Wed, 13 May 2026 14:18:59 -0700 (PDT) Received: from c7-smtp-2023.dev.purestorage.com ([208.88.159.129]) by smtp-relay.gmail.com with ESMTPS id 5a478bee46e88-302944ffbbesm28820eec.11.2026.05.13.14.18.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2026 14:18:59 -0700 (PDT) X-Relaying-Domain: purestorage.com Received: from dev-csander.dev.purestorage.com (dev-csander.dev.purestorage.com [10.112.46.22]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id A916B3402D8; Wed, 13 May 2026 15:18:58 -0600 (MDT) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id 92396E41188; Wed, 13 May 2026 15:18:58 -0600 (MDT) From: Caleb Sander Mateos To: Ming Lei , Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Caleb Sander Mateos Subject: [PATCH 7.2 0/2] ublk: optimize ublk_rq_has_data() Date: Wed, 13 May 2026 15:18:44 -0600 Message-ID: <20260513211846.1956810-1-csander@purestorage.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ublk_rq_has_data() currently uses bio_has_data(), which involves 2 indirections and several branches. Introduce a blk_rq_has_data() analogue for struct request and use it instead to save an indirection and NULL check. Caleb Sander Mateos (2): blk-mq: introduce blk_rq_has_data() ublk: optimize ublk_rq_has_data() drivers/block/ublk_drv.c | 21 ++++++++------------- include/linux/blk-mq.h | 9 +++++++++ 2 files changed, 17 insertions(+), 13 deletions(-) -- 2.54.0