From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: Recent changes (master) References: <20190509120003.26BCA2C098E@kernel.dk> <3b8b6f54-e990-2feb-bfc3-14a68345c366@criteo.com> From: Jens Axboe Message-ID: Date: Thu, 9 May 2019 08:07:53 -0600 MIME-Version: 1.0 In-Reply-To: <3b8b6f54-e990-2feb-bfc3-14a68345c366@criteo.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit To: Erwan Velu , "fio@vger.kernel.org" List-ID: On 5/9/19 6:47 AM, Erwan Velu wrote: > Isn't that also related to the kernel version you use ? > > This message might mislead the user as he might just have to upgrade his > kernel to gain the feature ? Yes, the message is for the specific kernel, it doesn't speak for any future kernels. But I think we're getting into documentation at this point, the message just means that on this setup, either the fs or device driver (or both) doesn't support polled IO. -- Jens Axboe