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Commit 92022950 authored by NeilBrown's avatar NeilBrown
Browse files

md: move most content from md.h to md_k.h 



The extern function definitions are kernel-internal definitions, so
they belong in md_k.h

The MD_*_VERSION values could reasonably go in a number of places,
but md_u.h seems most reasonable.

This leaves almost nothing in md.h.  It will go soon.

Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 8b2b5c21

include/linux/raid/md.h

+0 −40
Original line number Diff line number Diff line
@@ -34,46 +34,6 @@ 


#ifdef CONFIG_MD



/*

 * Different major versions are not compatible.

 * Different minor versions are only downward compatible.

 * Different patchlevel versions are downward and upward compatible.

 */

#define MD_MAJOR_VERSION                0

#define MD_MINOR_VERSION                90

/*

 * MD_PATCHLEVEL_VERSION indicates kernel functionality.

 * >=1 means different superblock formats are selectable using SET_ARRAY_INFO

 *     and major_version/minor_version accordingly

 * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT

 *     in the super status byte

 * >=3 means that bitmap superblock version 4 is supported, which uses

 *     little-ending representation rather than host-endian

 */

#define MD_PATCHLEVEL_VERSION           3



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),

				mddev_t *mddev, const char *name);

extern void md_unregister_thread(mdk_thread_t *thread);

extern void md_wakeup_thread(mdk_thread_t *thread);

extern void md_check_recovery(mddev_t *mddev);

extern void md_write_start(mddev_t *mddev, struct bio *bi);

extern void md_write_end(mddev_t *mddev);

extern void md_done_sync(mddev_t *mddev, int blocks, int ok);

extern void md_error(mddev_t *mddev, mdk_rdev_t *rdev);



extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,

			   sector_t sector, int size, struct page *page);

extern void md_super_wait(mddev_t *mddev);

extern int sync_page_io(struct block_device *bdev, sector_t sector, int size,

			struct page *page, int rw);

extern void md_do_sync(mddev_t *mddev);

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);



#endif /* CONFIG_MD */

#endif

include/linux/raid/md_k.h

+22 −0
Original line number Diff line number Diff line
@@ -390,3 +390,25 @@ static inline void safe_put_page(struct 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),

				mddev_t *mddev, const char *name);

extern void md_unregister_thread(mdk_thread_t *thread);

extern void md_wakeup_thread(mdk_thread_t *thread);

extern void md_check_recovery(mddev_t *mddev);

extern void md_write_start(mddev_t *mddev, struct bio *bi);

extern void md_write_end(mddev_t *mddev);

extern void md_done_sync(mddev_t *mddev, int blocks, int ok);

extern void md_error(mddev_t *mddev, mdk_rdev_t *rdev);



extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,

			   sector_t sector, int size, struct page *page);

extern void md_super_wait(mddev_t *mddev);

extern int sync_page_io(struct block_device *bdev, sector_t sector, int size,

			struct page *page, int rw);

extern void md_do_sync(mddev_t *mddev);

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);

include/linux/raid/md_u.h

+18 −0
Original line number Diff line number Diff line
@@ -15,6 +15,24 @@ 
#ifndef _MD_U_H

#define _MD_U_H



/*

 * Different major versions are not compatible.

 * Different minor versions are only downward compatible.

 * Different patchlevel versions are downward and upward compatible.

 */

#define MD_MAJOR_VERSION                0

#define MD_MINOR_VERSION                90

/*

 * MD_PATCHLEVEL_VERSION indicates kernel functionality.

 * >=1 means different superblock formats are selectable using SET_ARRAY_INFO

 *     and major_version/minor_version accordingly

 * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT

 *     in the super status byte

 * >=3 means that bitmap superblock version 4 is supported, which uses

 *     little-ending representation rather than host-endian

 */

#define MD_PATCHLEVEL_VERSION           3



/* ioctls */



/* status */