Hello,
posix_fadvise(2) tells me that when using POSIX_FADV_DONTNEED, "Requests
to discard partial pages are ignored. If the application requires that
data be considered for discarding, then offset and len must be
page-aligned.".
How does this interact with huge pages?
Is it sufficient to align with getpagesize()? Or do offset and len need
to be aligned with huge page offsets when the region is backed by a huge
page?
In the latter case, is there a way for userspace to ensure this?
Best,
-Nikolaus
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