tree 461ec0551ce11d4fa387a7c93ed317e836697a34
parent 15f3ec3f238a44181e1ae85b3cc2c27b9fece01b
author Lai Jiangshan <laijs@cn.fujitsu.com> 1402090635 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1402096093 -0700

idr: reorder the fields

idr_layer->layer is always accessed in read path, move it in the front.

idr_layer->bitmap is moved on the bottom.  And rcu_head shares with
bitmap due to they do not be accessed at the same time.

idr->id_free/id_free_cnt/lock are free list fields, and moved to the
bottom.  They will be removed in near future.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>