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    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.


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