[lkml]   [2012]   [Jun]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v2 1/1] mmc: block: Add write packing control
On Mon, Jun 11, 2012 at 2:19 PM, Muthu Kumar <> wrote:
> On Fri, Jun 1, 2012 at 11:55 AM, Maya Erez <> wrote:
>> The write packing control will ensure that read requests latency is
>> not increased due to long write packed commands.
>> The trigger for enabling the write packing is managing to pack several
>> write requests. The number of potential packed requests that will trigger
>> the packing can be configured via sysfs by writing the required value to:
>> /sys/block/<block_dev_name>/num_wr_reqs_to_start_packing.
>> The trigger for disabling the write packing is fetching a read request.
> If it is applicable only to MMC why do we have this sysfs attr for all
> block devices?

Just to be clear, please create a directory, say mmc, under
/sys/block/<dev>/ and create the attr inside that.

You can refer to dm (dm-sysfs.c) for sample implementation.


 \ /
  Last update: 2012-06-12 03:01    [W:0.070 / U:0.168 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site