Hi, On Wed, Jun 13 2012, Muthu Kumar wrote: > On Wed, Jun 13, 2012 at 12:52 PM, <merez@xxxxxxxxxxxxxx> wrote: >> >> On Mon, June 11, 2012 5:28 pm, Muthu Kumar wrote: >>> 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: >>>>> 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. >> I understand why you think it would be best to distinguish the MMC >> specific attribute from the general block devices attributes. >> However, since this attribute is created only for the MMC block device, >> other block devices won't be aware of it. > > I understand its created by the MMC code so will not be there for > other block devices. But having the device specific attributes inside > one <device> directory is better/cleaner. And since we are already > following that model for other devices, why not follow that for MMC > also? I've already replied to a later version of the patch, but just to get this comment in at the appropriate point of the discussion as well: Even though it would result in a cleaner sysfs, I don't want to do this now because it will break userspace scripts that are depending on the current locations of these attributes. Thanks, - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
