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Date: Mon, 11 Jun 2012 17:28:44 -0700 From: Muthu Kumar <muthu.lkml@...il.com> To: Maya Erez <merez@...eaurora.org> Cc: linux-mmc@...r.kernel.org, linux-arm-msm@...r.kernel.org, "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>, open list <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v2 1/1] mmc: block: Add write packing control On Mon, Jun 11, 2012 at 2:19 PM, Muthu Kumar <muthu.lkml@...il.com> wrote: > On Fri, Jun 1, 2012 at 11:55 AM, Maya Erez <merez@...eaurora.org> 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-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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