[GFS2] Make headers compile on their own
As per Jan Engelhardt's comments, this should make all the headers
compile on their own by including and/or declaring structures
early.
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 4762cdb0..2e1d328 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -10,6 +10,8 @@
#ifndef __GLOCK_DOT_H__
#define __GLOCK_DOT_H__
+#include "incore.h"
+
/* Flags for lock requests; used in gfs2_holder gh_flag field.
From lm_interface.h:
#define LM_FLAG_TRY 0x00000001