Re: [PATCH] blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time

From: Jens Axboe
Date: Mon May 23 2011 - 13:36:10 EST

On 2011-05-23 16:55, Vivek Goyal wrote:
> If we don't explicitly initialize it to zero, CFQ might think that
> cgroup of ioc has changed and it generates lots of unnecessary calls
> to call_for_each_cic(changed_cgroup). Fix it.
> cfq_get_io_context()
> cfq_ioc_set_cgroup()
> call_for_each_cic(ioc, changed_cgroup)

Thanks Vivek, applied.

Jens Axboe

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