libpmem: move mmap alignment to init time
authorJens Axboe <axboe@kernel.dk>
Fri, 17 Nov 2017 16:19:26 +0000 (09:19 -0700)
committerJens Axboe <axboe@kernel.dk>
Fri, 17 Nov 2017 16:19:26 +0000 (09:19 -0700)
Also use the generally available page_size, don't need to roll our
own in there.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

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