Re: [RFC PATCH v2] support ioctl for tunable user request

[Jaehoon Chung <jh80.chung@samsung.com>]

Hi

Lin Ming wrote:
> On Mon, Aug 29, 2011 at 4:15 PM, Jaehoon Chung <jh80.chung@samsung.com> wrote:
>> This patch is added the ioctl for tunable user request.
> 
> Hi,
> 
> What's the use case for this new ioctl?
> 
In my case, this ioctl is used the background operation for eMMC.
In eMMC's case, background operation(BKOPS) is supported.
(but that is running with only card notifier, so i added new ioctl for user request)

if we send the BKOPS request, card is notified to need the BKOPS. 
then running background operation. (Then user's responsibility is done)

In future, i think that other block device should be used this ioctl.
(if supported like BKOPS)

Regard,
Jaehoon Chung