btrfs: remove unused hardirq.h
authorYang Shi <yang.s@alibaba-inc.com>
Fri, 17 Nov 2017 23:02:16 +0000 (07:02 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 26 Mar 2018 13:09:35 +0000 (15:09 +0200)
commit86d750a48a6d22435265abf525d8a27fa636db26
treeefa6d444301541c1d7b8fb9b24643808358cf4ca
parent9a3daff320260723b9e64b5b3b9c6592a0cd006a
btrfs: remove unused hardirq.h

Preempt counter APIs have been split out, currently, hardirq.h just
includes irq_enter/exit APIs which are not used by btrfs at all.

So, remove the unused hardirq.h.

Signed-off-by: Yang Shi <yang.s@alibaba-inc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/extent_map.c