[PATCHSET,0/2] Optimize get_current_ioprio() a bit

Message ID	20240108190113.1264200-1-axboe@kernel.dk (mailing list archive)
Headers	show Received: from mail-il1-f181.google.com (mail-il1-f181.google.com [209.85.166.181]) (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 BCC1254F8B for <linux-block@vger.kernel.org>; Mon, 8 Jan 2024 19:01:17 +0000 (UTC) From: Jens Axboe <axboe@kernel.dk> To: linux-block@vger.kernel.org Subject: [PATCHSET 0/2] Optimize get_current_ioprio() a bit Date: Mon, 8 Jan 2024 11:59:54 -0700 Message-ID: <20240108190113.1264200-1-axboe@kernel.dk> Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Series	Optimize get_current_ioprio() a bit \| expand [PATCHSET,0/2] Optimize get_current_ioprio() a bit [1/2] block: move __get_task_ioprio() into header file [2/2] block: make __get_task_ioprio() easier to read

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20240108190113.1264200-1-axboe@kernel.dk (mailing list archive)

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From: Jens Axboe <axboe@kernel.dk>
To: linux-block@vger.kernel.org
Subject: [PATCHSET 0/2] Optimize get_current_ioprio() a bit
Date: Mon,  8 Jan 2024 11:59:54 -0700
Message-ID: <20240108190113.1264200-1-axboe@kernel.dk>
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Optimize get_current_ioprio() a bit | expand

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Jens Axboe Jan. 8, 2024, 6:59 p.m. UTC

Hi,

Came across this one in some recent profiling, and it's actually
quite grim:

+    2.71%  io_uring  [kernel.vmlinux]  [k] __get_task_ioprio                       ▒

Just do the easy thing and move it into the header so we avoid
a function call per IO for this. Patch 2 is just a general cleanup.