Re: [PATCH -next] memregion: Add arch_flush_memregion() interface

[Andrew Morton]

I really dislike the term "flush".  Sometimes it means writeback,
sometimes it means invalidate.  Perhaps at other times it means
both.

Can we please be very clear in comments and changelogs about exactly
what this "flush" does.   With bonus points for being more specific in the 
function naming?