linux-kernel - Re: [PATCH] block: BFQ default for single queue devices

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Message-ID: <20181004152632.GG6412@sirena.org.uk>
Date:   Thu, 4 Oct 2018 16:26:32 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Bart Van Assche <bvanassche@....org>
Cc:     Linus Walleij <linus.walleij@...aro.org>, oleksandr@...alenko.name,
        Paolo Valente <paolo.valente@...aro.org>,
        Jens Axboe <axboe@...nel.dk>,
        linux-block <linux-block@...r.kernel.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        linux-mtd@...ts.infradead.org, Pavel Machek <pavel@....cz>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Richard Weinberger <richard@....at>,
        Artem Bityutskiy <dedekind1@...il.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jan Kara <jack@...e.cz>, aherrmann@...e.com, mgorman@...e.com,
        Chunyan Zhang <zhang.chunyan@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        bfq-iosched@...glegroups.com
Subject: Re: [PATCH] block: BFQ default for single queue devices

On Thu, Oct 04, 2018 at 08:10:57AM -0700, Bart Van Assche wrote:
> On Thu, 2018-10-04 at 11:13 +0100, Mark Brown wrote:

> > Further, even those embedded systems that do use udev (some of them do
> > lean heavily on modern init stuff like that and systemd, especially when
> > boot time is a priority) they'll still need to get the relevant udev
> > rule installed somehow.

> Are you aware that the systemd source tree includes a set of udev rules?
> See also https://github.com/systemd/systemd/tree/master/rules.

Yeah, but then you're back to the situation where someone needs to go
pick up a new version of systemd to get the new rules along with the new
kernel.  It's not insurmountable but it's an obstacle.

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