md: move lots of #include lines out of .h files and into .c

This makes the includes more explicit, and is preparation for moving
md_k.h to drivers/md/md.h

Remove include/raid/md.h as its only remaining use was to #include
other files.

Signed-off-by: NeilBrown <neilb@suse.de>

drivers/md/bitmap.c

@@ -16,6 +16,7 @@
  * wait if count gets too high, wake when it drops to half.
  */
 
+#include <linux/blkdev.h>
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
@@ -26,7 +27,7 @@
 #include <linux/file.h>
 #include <linux/mount.h>
 #include <linux/buffer_head.h>
-#include <linux/raid/md.h>
+#include <linux/raid/md_k.h>
 #include "bitmap.h"
 
 /* debug macros */

drivers/md/faulty.c

@@ -62,7 +62,10 @@
 #define	ModeShift	5
 
 #define MaxFault	50
-#include <linux/raid/md.h>
+#include <linux/blkdev.h>
+#include <linux/raid/md_u.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
 
 
 static void faulty_fail(struct bio *bio, int error)

drivers/md/linear.c

@@ -16,6 +16,10 @@
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 */
 
+#include <linux/blkdev.h>
+#include <linux/raid/md_u.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
 #include "linear.h"
 
 /*

drivers/md/linear.h

@@ -1,8 +1,6 @@
 #ifndef _LINEAR_H
 #define _LINEAR_H
 
-#include <linux/raid/md.h>
-
 struct dev_info {
 	mdk_rdev_t	*rdev;
 	sector_t	num_sectors;

drivers/md/md.c

@@ -33,8 +33,9 @@
 */
 
 #include <linux/kthread.h>
-#include <linux/raid/md.h>
+#include <linux/blkdev.h>
 #include <linux/sysctl.h>
+#include <linux/seq_file.h>
 #include <linux/buffer_head.h> /* for invalidate_bdev */
 #include <linux/poll.h>
 #include <linux/ctype.h>
@@ -44,6 +45,9 @@
 #include <linux/reboot.h>
 #include <linux/file.h>
 #include <linux/delay.h>
+#include <linux/raid/md_k.h>
+#include <linux/raid/md_p.h>
+#include <linux/raid/md_u.h>
 #include "bitmap.h"
 
 #define DEBUG 0

drivers/md/multipath.c

@@ -19,6 +19,10 @@
  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/blkdev.h>
+#include <linux/raid/md_u.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
 #include "multipath.h"
 
 #define MAX_WORK_PER_DISK 128

drivers/md/multipath.h

@@ -1,8 +1,6 @@
 #ifndef _MULTIPATH_H
 #define _MULTIPATH_H
 
-#include <linux/raid/md.h>
-
 struct multipath_info {
 	mdk_rdev_t	*rdev;
 };

drivers/md/raid0.c

@@ -18,6 +18,9 @@
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 */
 
+#include <linux/blkdev.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
 #include "raid0.h"
 
 static void raid0_unplug(struct request_queue *q)

drivers/md/raid0.h

@@ -1,8 +1,6 @@
 #ifndef _RAID0_H
 #define _RAID0_H
 
-#include <linux/raid/md.h>
-
 struct strip_zone
 {
 	sector_t zone_start;	/* Zone offset in md_dev (in sectors) */

drivers/md/raid1.c

@@ -31,8 +31,11 @@
  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include "dm-bio-list.h"
 #include <linux/delay.h>
+#include <linux/blkdev.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
+#include "dm-bio-list.h"
 #include "raid1.h"
 #include "bitmap.h"
 

drivers/md/raid1.h

@@ -1,8 +1,6 @@
 #ifndef _RAID1_H
 #define _RAID1_H
 
-#include <linux/raid/md.h>
-
 typedef struct mirror_info mirror_info_t;
 
 struct mirror_info {

drivers/md/raid10.c

@@ -18,8 +18,11 @@
  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#include "dm-bio-list.h"
 #include <linux/delay.h>
+#include <linux/blkdev.h>
+#include <linux/raid/md_k.h>
+#include <linux/seq_file.h>
+#include "dm-bio-list.h"
 #include "raid10.h"
 #include "bitmap.h"
 

drivers/md/raid10.h

@@ -1,8 +1,6 @@
 #ifndef _RAID10_H
 #define _RAID10_H
 
-#include <linux/raid/md.h>
-
 typedef struct mirror_info mirror_info_t;
 
 struct mirror_info {

drivers/md/raid5.c

@@ -43,8 +43,12 @@
  * miss any bits.
  */
 
+#include <linux/blkdev.h>
+#include <linux/raid/md_k.h>
 #include <linux/kthread.h>
 #include <linux/async_tx.h>
+#include <linux/seq_file.h>
+#include "raid5.h"
 #include "raid6.h"
 #include "bitmap.h"
 
@@ -1467,7 +1471,7 @@ static void copy_data(int frombio, struct bio *bio,
 
 static void compute_parity6(struct stripe_head *sh, int method)
 {
-	raid6_conf_t *conf = sh->raid_conf;
+	raid5_conf_t *conf = sh->raid_conf;
 	int i, pd_idx = sh->pd_idx, qd_idx, d0_idx, disks = sh->disks, count;
 	struct bio *chosen;
 	/**** FIX THIS: This could be very bad if disks is close to 256 ****/
@@ -2795,7 +2799,7 @@ static bool handle_stripe5(struct stripe_head *sh)
 
 static bool handle_stripe6(struct stripe_head *sh, struct page *tmp_page)
 {
-	raid6_conf_t *conf = sh->raid_conf;
+	raid5_conf_t *conf = sh->raid_conf;
 	int disks = sh->disks;
 	struct bio *return_bi = NULL;
 	int i, pd_idx = sh->pd_idx;

drivers/md/raid5.h

@@ -1,7 +1,6 @@
 #ifndef _RAID5_H
 #define _RAID5_H
 
-#include <linux/raid/md.h>
 #include <linux/raid/xor.h>
 
 /*

drivers/md/raid6.h

@@ -17,11 +17,7 @@
 
 /* Set to 1 to use kernel-wide empty_zero_page */
 #define RAID6_USE_EMPTY_ZERO_PAGE 0
-
-#include <linux/raid/md.h>
-#include "raid5.h"
-
-typedef raid5_conf_t raid6_conf_t; /* Same configuration */
+#include <linux/blkdev.h>
 
 /* Additional compute_parity mode -- updates the parity w/o LOCKING */
 #define UPDATE_PARITY	4