lightnvm: check overflow and correct mlc pairs
authorMatias Bjørling <m@bjorling.me>
Thu, 4 Feb 2016 14:13:26 +0000 (15:13 +0100)
committerJens Axboe <axboe@fb.com>
Thu, 4 Feb 2016 16:19:45 +0000 (09:19 -0700)
commit6dde1d6c9094a7c20a680aa2196ad6d032ec7ded
treefca58d9144d6b47691e40f4f05051be5e24682c9
parent3704e098cc1a4c2cabcf4e1cfbbff38b4bfb1ea7
lightnvm: check overflow and correct mlc pairs

The specification currently limits the number of MLC pairs to 886. Make
sure that a device is unable to be instantiate if more is configured.

Also, previously the patch had the wrong math for copying MLC pairs, as
it only copied half of the actual entries.

Fixes: ca5927e7ab53 "lightnvm: introduce mlc lower page table mappings"
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
drivers/nvme/host/lightnvm.c