From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 14 Jul 2017 08:40:26 +0200 From: Johannes Thumshirn To: Jens Axboe Cc: Alex Ivanov , linux-block@vger.kernel.org Subject: Re: [PATCH] elevator: allow specifying elevator by config boot param for blk-mq devices Message-ID: <20170714064026.GB3484@linux-x5ow.site> References: <20170712185708.5987-1-yourbestfriend@openmailbox.org> <0661f4cc-a5dc-5747-dd38-de78586843a2@kernel.dk> <20170713101154.GH5212@linux-x5ow.site> <49033d7d-8941-3c17-962f-dab170401bcf@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 In-Reply-To: <49033d7d-8941-3c17-962f-dab170401bcf@kernel.dk> List-ID: On Thu, Jul 13, 2017 at 08:02:41AM -0600, Jens Axboe wrote: > Because it sucks as an interface - there's no way to apply different > settings to different devices, and using the kernel command line to > control something like this is ugly. It never should have been done. > > The sysfs interface, either manually, scripted, or through udev, > makes a lot more sense. Not that I disagree with your reasons, but not being able to select a mq scheduler confuses quite some users out there. Byte, Johannes -- Johannes Thumshirn Storage jthumshirn@suse.de +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N�rnberg GF: Felix Imend�rffer, Jane Smithard, Graham Norton HRB 21284 (AG N�rnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850