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Message-ID: <CALAqxLV3SFQn9WGhK1vFW70PYVbbKWSEmFjDVZ=+npRSNfOM_g@mail.gmail.com>
Date:	Fri, 30 Oct 2015 17:09:14 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	San Mehat <san@...gle.com>, Jens Axboe <axboe@...nel.dk>,
	Rom Lemarchand <romlem@...gle.com>,
	Android Kernel Team <kernel-team@...roid.com>,
	Dima Zavin <dima@...roid.com>,
	John Stultz <john.stultz@...aro.org>
Subject: Re: [PATCH] block: genhd: Add disk/partition specific uevent
 callbacks for partition info

On Thu, Oct 22, 2015 at 10:27 AM, John Stultz <john.stultz@...aro.org> wrote:
> From: San Mehat <san@...gle.com>
>
> This patch has been carried in the Android tree for quite some
> time and is one of the few patches required to get a mainline
> kernel up and running with an exsiting Android userspace. So I
> wanted to submit it for review and consideration if it should
> be merged.
>
> For disk devices, a new uevent parameter 'NPARTS' specifies the number
> of partitions detected by the kernel. Partition devices get 'PARTN' which
> specifies the partitions index in the table, and 'PARTNAME', which
> specifies PARTNAME specifices the partition name of a partition device
>
> Android's userspace uses this for creating device node links from the
> partition name and number: ie:
>         /dev/block/platform/soc/by-name/system
> or
>         /dev/block/platform/soc/by-num/p1
>
> One can see its usage here:
> https://android.googlesource.com/platform/system/core/+/master/init/devices.cpp#355
> and
> https://android.googlesource.com/platform/system/core/+/master/init/devices.cpp#494
>
> Thoughts and feedback would be greatly appreciated!

Ping? Any thoughts or objections to this?

thanks
-john
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