Hi..
3. It is not swapped out to disk.
After 2nd thought and checking
http://lxr.linux.no/source/arch/i386/lib/usercopy.c#L849, I see no
function related to making sure the related page(s) aren't swapped out.
So, I think it's OK if it hits swapped out pages since AFAIK code paths
that use copy_{to,from}_user are free to sleep.
regards,
Mulyadi
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