Re: [PATCH v4 0/6] solve deadlock caused by memory allocation withI/O

From: Andrew Morton
Date: Tue Nov 06 2012 - 18:22:58 EST


On Sat, 3 Nov 2012 16:35:08 +0800
Ming Lei <ming.lei@xxxxxxxxxxxxx> wrote:

> This patchset try to solve one deadlock problem which might be caused
> by memory allocation with block I/O during runtime PM and block device
> error handling path. Traditionly, the problem is addressed by passing
> GFP_NOIO statically to mm, but that is not a effective solution, see
> detailed description in patch 1's commit log.

It generally looks OK to me. I have a few comments and I expect to grab
v5.

Rafael, your thoughts?
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