Re: [PATCH v3] selftests/zram: Adding zram tests

From: Shuah Khan
Date: Thu Aug 27 2015 - 18:12:17 EST

On 08/27/2015 12:10 PM, Shuah Khan wrote:
> On 08/18/2015 01:01 AM, naresh.kamboju@xxxxxxxxxx wrote:
>> From: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
>> zram: Compressed RAM based block devices
>> ----------------------------------------
>> The zram module creates RAM based block devices named /dev/zram<id>
>> (<id> = 0, 1, ...). Pages written to these disks are compressed and stored
>> in memory itself. These disks allow very fast I/O and compression provides
>> good amounts of memory savings. Some of the usecases include /tmp storage,
>> use as swap disks, various caches under /var and maybe many more :)
>> Statistics for individual zram devices are exported through sysfs nodes at
>> /sys/block/zram<id>/
>> This patch is to validate the zram functionality. Test interacts with block
>> device /dev/zram<id> and sysfs nodes /sys/block/zram<id>/
> Hi Naresh,
> This doesn't fail gracefully when a regular user runs it. Please add
> a check for root and make the test fail gracefully when a non-root
> user runs it.
> Please refer to tools/testing/selftests/efivarfs/
> for an example on how to check for root.
> I was getting ready to apply this to linux-kselftest next for 4.3
> and ran some sanity tests. If you get me new revision quickly
> I can get it into 4.3-rc1.

Hi Naresh,

The patch is now in linux-kselftest next. Please send a fix in for
the non-root case for me get it into 4.3-rc1 or rc2.

-- Shuah

Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@xxxxxxxxxxxxxxx | (970) 217-8978
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