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md: tiny md.h cleanups

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- update inclusion guard and make sure it covers the whole file
 - remove superflous #ifdef CONFIG_BLOCK
 - make sure all required headers are included so that new users aren't
   required to include others before

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Christoph Hellwig 2009-04-14 12:01:53 +10:00 committed by NeilBrown
parent b0cbc861a3
commit 63fe08177f
1 changed files with 12 additions and 7 deletions
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19
drivers/md/md.h
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@ -12,10 +12,17 @@
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _MD_K_H
#define _MD_K_H
#ifndef _MD_MD_H
#define _MD_MD_H
#ifdef CONFIG_BLOCK
#include <linux/blkdev.h>
#include <linux/kobject.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
#define MaxSector (~(sector_t)0)
@ -408,10 +415,6 @@ static inline void safe_put_page(struct page *p)
if (p) put_page(p);
}
#endif /* CONFIG_BLOCK */
#endif
extern int register_md_personality(struct mdk_personality *p);
extern int unregister_md_personality(struct mdk_personality *p);
extern mdk_thread_t * md_register_thread(void (*run) (mddev_t *mddev),
@ -434,3 +437,5 @@ extern void md_new_event(mddev_t *mddev);
extern int md_allow_write(mddev_t *mddev);
extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors);
#endif /* _MD_MD_H */