Re: [PATCH 10/13] block, cfq: unlink cfq_io_context's immediately

From: Tejun Heo
Date: Wed Oct 26 2011 - 15:55:15 EST


Hello,

On Wed, Oct 26, 2011 at 03:48:57PM -0400, Vivek Goyal wrote:
> > + ioc_release_depth_inc(cic->q);
> > + cic->exit(cic);
> > + cic->release(cic);
> > + ioc_release_depth_dec(cic->q);
>
> cic->release(cic) can free the cic? Are we accessing cic after freeing it
> up in ioc_release_depth_dec(cic->q);

As cic is RCU freed and we're running w/ irq disabled, this shouldn't
blow up, but yeah, I'll update it to use local variable instead.

Thanks.

--
tejun
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