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SubjectRe: [PATCH 2/2 V3] io-controller: Document for blkio.weight_device
Hi, thank you for fixing ...

Gui Jianfeng wrote:
> +- blkio.weight_device
> + - One can specify per cgroup per device rules using this interface.
> + These rules override the default value of group weight as specified
> + by blkio.weight.
> +
> + Following is the format.
> +
> + #echo dev_maj:dev_minor weight > /pach/to/cgroup/blkio.weight_device

You deleted wrong character! We need 't' not 'c'.

Thanks,
Takuya

> +
> + weight=0 means removing weight on a given device.
> +
> + Examples:
> + Configure weight=300 on /dev/sdb (8:16) in this cgroup
> + # echo 8:16 300 > blkio.weight_device
> + # cat blkio.weight_device
> + dev weight
> + 8:16 300
> +
> + Configure weight=500 on /dev/sda (8:0) in this cgroup
> + # echo 8:0 500 > blkio.weight_device
> + # cat blkio.weight_device
> + dev weight
> + 8:0 500
> + 8:16 300
> +
> + Remove specific weight for /dev/sda in this cgroup
> + # echo 8:0 0 > blkio.weight_device
> + # cat blkio.weight_device
> + dev weight
> + 8:16 300
> +
> CFQ sysfs tunable
> =================
> /sys/block/<disk>/queue/iosched/group_isolation



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