Ingo Molnar wrote:

* Nick Piggin [off-list ref] wrote:

quoted

Feedback please, anyone.

it looks good to me, but wouldnt it be simpler (in terms of patch and 
architecture impact) to always retry the follow_page() in 
get_user_pages(), in case of a minor fault? The sequence of minor faults 

I believe this can break some things. Hugh posted an example
in his recent post to linux-mm (ptrace setting a breakpoint
in read-only text). I think?

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