Messages in this thread | | | Date | Fri, 8 May 2015 18:14:48 -0700 | Subject | Re: [PATCH v2 00/10] evacuate struct page from the block layer, introduce __pfn_t | From | Linus Torvalds <> |
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On Fri, May 8, 2015 at 9:59 AM, Rik van Riel <riel@redhat.com> wrote: > > However, for persistent memory, all of the files will be "in memory".
Yes. However, I doubt you will find a very sane rw filesystem that then also makes them contiguous and aligns them at 2MB boundaries.
Anything is possible, I guess, but things like that are *hard*. The fragmentation issues etc cause it to a really challenging thing.
And if they aren't aligned big contiguous allocations, then they aren't relevant from any largepage cases. You'll still have to map them 4k at a time etc.
Linus
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