On Mon, Jun 11, 2012 at 2:19 PM, Muthu Kumar <muthu.lkml@xxxxxxxxx> wrote: > On Fri, Jun 1, 2012 at 11:55 AM, Maya Erez <merez@xxxxxxxxxxxxxx> 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. Regards, Muthu -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html