Date: Mon, 20 Feb 2012 09:36:22 -0500
From: Vivek Goyal <vgoyal@redhat.com>
To: Tejun Heo <tj@kernel.org>
Cc: Kent Overstreet <koverstreet@google.com>, axboe@kernel.dk,
        ctalbott@google.com, rni@google.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 7/9] block: implement bio_associate_current()
Message-ID: <20120220143622.GB10342@redhat.com>
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On Fri, Feb 17, 2012 at 02:57:35PM -0800, Tejun Heo wrote:

[..]
> blkcg doesn't allow that anyway (it tries but is racy) and I actually
> was thinking about sending a RFC patch to kill CLONE_IO.

Hi  Tejun,

I have a question about CLONE_IO.

In copy_io(), we don't share the io_context if "current" does not have
task->io_context set. Does that mean if even if I specify CLONE_IO, two
threads might not share io context depending on when clone() happened? Or
I am reading the code wrong.

Thanks
Vivek
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