On Thu, 26 Jan 2012 16:31:40 +0100, Arnd Bergmann [off-list ref] wrote:

I haven't followed the last two releases so closely. It seems that
in v17 the movable pages with pending i/o was still a major problem
but in v18 you added a solution. Is that right? What is still left
to be done here then?

In the current version, when allocation fails because of a page with
pending I/O, CMA automatically tries allocation in another region.

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