dm crypt: use shifts instead of sector_div

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sector_div is very slow, so we introduce a variable sector_shift and
use shift instead of sector_div.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

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Mikulas Patocka 2017-03-23 10:23:14 -04:00 • committed by Mike Snitzer

parent c2bcb2b702

commit ff3af92b44

1 changed files with 10 additions and 7 deletions

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drivers/md/dm-crypt.c

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