Re: [PATCHV3 3/3] x86, ras: Add mcsafe_memcpy() function to recover from machine checks

[Tony Luck]

> I know, memcpy returns the ptr to @dest like a parrot

Maybe I need to change the name to remove the
"memcpy" substring to avoid this confusion. How
about "mcsafe_copy()"? Perhaps with a "__" prefix
to point out it is a building block that will get various
wrappers around it??

Dan wants a copy_from_nvdimm() that either completes
the copy, or indicates where a machine check occurred.

I'm going to want a copy_from_user() that has two fault
options (user gave a bad address -> -EFAULT, or the
source address had an uncorrected error -> SIGBUS).

-Tony
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