Re: [PATCH] block: transfer source bio's cgroup tags to clone via bio_associate_blkcg() (was: Re: blkio cgroups controller doesn't work with LVM?)

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Subject: Re: [PATCH] block: transfer source bio's cgroup tags to clone via bio_associate_blkcg() (was: Re: blkio cgroups controller doesn't work with LVM?)
From: Nikolay Borisov <kernel@xxxxxxxx>
Date: Wed, 2 Mar 2016 20:03:10 +0200
Cc: Jens Axboe <axboe@xxxxxxxxx>, SiteGround Operations <operations@xxxxxxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, device-mapper development <dm-devel@xxxxxxxxxx>, Nikolay Borisov <kernel@xxxxxxxx>, cgroups@xxxxxxxxxxxxxxx, Tejun Heo <tj@xxxxxxxxxx>, Chris Friesen <chris.friesen@xxxxxxxxxxxxx>, Vivek Goyal <vgoyal@xxxxxxxxxx>
In-reply-to: <20160302175656.GA59991@redhat.com>

Thanks for the patch I will likely have time to test this sometime next week.
But just to be sure - the expected behavior would be that processes
writing to dm-based devices would experience the fair-shair
scheduling of CFQ (provided that the physical devices that back those
DM devices use CFQ), correct?

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Follow-Ups:
- Re: [PATCH] block: transfer source bio's cgroup tags to clone via bio_associate_blkcg() (was: Re: blkio cgroups controller doesn't work with LVM?)
  - From: Vivek Goyal
- Re: block: transfer source bio's cgroup tags to clone via bio_associate_blkcg() (was: Re: blkio cgroups controller doesn't work with LVM?)
  - From: Mike Snitzer

References:
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  - From: Chris Friesen
- Re: blkio cgroups controller doesn't work with LVM?
  - From: Nikolay Borisov
- Re: blkio cgroups controller doesn't work with LVM?
  - From: Mike Snitzer
- Re: blkio cgroups controller doesn't work with LVM?
  - From: Tejun Heo
- [PATCH] block: transfer source bio's cgroup tags to clone via bio_associate_blkcg() (was: Re: blkio cgroups controller doesn't work with LVM?)
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