Robin Holt wrote:

> So far, I think the case for setting VM_FAULT_RACE only when there
> is a conflict for writable seems strong.
> 

But that's 1162 collisions out of how many faults? And only
on the get_user_pages faults does the return value really
make a difference.

How about the following? This should catch some cases. You
still miss the case where you're racing with anotyher writer
though.

-- 
SUSE Labs, Novell Inc.