tree 863e7cad45616ddc8a5417919d696ced884ddd2e
parent e1746e8381cd2af421f75557b5cae3604fc18b35
author Zhao Lei <zhaolei@cn.fujitsu.com> 1418039757 +0800
committer Chris Mason <clm@fb.com> 1453303335 -0800

btrfs: Fix calculation of rbio->dbitmap's size calculation

Current code is trying to calculate rbio->dbitmap's size to make it
align to sizeof(long), but implement haven't achived this object,
it is align to sizeof(char) instead.
This patch fixed above calculation, and use sizeof(long) instead of
fixed "8" to increate compatibility.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>