>
> Hi.
>
> These patches provide the function to output the information to sysfs.
> I changed the location to outputs statistical information of virtual 
> block device (VBD) from the /proc file system to the sysfs.
> The location is 'statstics' directory under each VBD directory, for 
> example, /sys/devices/xen-backend/vbd-x-xxxx/statistics.
>
> The 'statistics' directory includes the following three statistical 
> informations.
> oo_req
> is the number of Out of(?) requests.
> rd_req
> is the number of pended READ requests.
> wr_req
> is the number of pended WRITE requests.
>
> Examples are as follows.
> By applying this patch, sysfs creates "statistics" directory under the 
> "vbd-*" directory.
> The "statistics" directory includes three statistical information 
> files of VBD; oo_req, rd_req, wr_req.
>
> [root@Domain-0 ~]# ls /sys/devices/xen-backend/vbd-1-2049/
> bus driver nodename power uevent
> devtype mode physical_device statistics
> [root@Domain-0 ~]# ls
> /sys/devices/xen-backend/vbd-1-2049/statistics/
> oo_req rd_req wr_req
> [root@Domain-0 ~]# cat
> /sys/devices/xen-backend/vbd-1-2049/statistics/oo_req
> 0
> [root@Domain-0 ~]# cat
> /sys/devices/xen-backend/vbd-1-2049/statistics/rd_req
> 1592
> [root@Domain-0 ~]# cat
> /sys/devices/xen-backend/vbd-1-2049/statistics/wr_req
> 565
> [root@Domain-0 ~]#
>
>
>
> Changing from ver. 2 is a following.
> - Code is clearly by moving xenbus.c
> - Do not change the type of each information.
> (It may be more desirable to change into unsigned into or 
> unsigned long)
> (But it is not essence for this mechanism)
> - Macro changes not using fmt representation (use like printf)
>
>
> Thanks,
> Satoshi UCHIDA
Sorry, I missed to send patch.
I sent few old version patch.
I resent the correct patch after a few time.
Satoshi UCHIDA
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