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>
mariux64 · Mar 26, 2018 · 86d750a · 86d750a
1 parent 9a3daff
commit 86d750a
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
@@ -2,7 +2,6 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/hardirq.h>
 #include "ctree.h"
 #include "extent_map.h"
 #include "compression.h"