/*
- md_k.h : kernel internal structure of the Linux MD driver
+ md.h : kernel internal structure of the Linux MD driver
Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman
This program is free software; you can redistribute it and/or modify
#define MaxSector (~(sector_t)0)
-typedef struct mddev_s mddev_t;
-typedef struct mdk_rdev_s mdk_rdev_t;
-
/* Bad block numbers are stored sorted in a single page.
* 64bits is used for each block or extent.
* 54 bits are sector number, 9 bits are extent size,
/*
* MD's 'extended' device
*/
-struct mdk_rdev_s
-{
+struct md_rdev {
struct list_head same_set; /* RAID devices within the same set */
sector_t sectors; /* Device size (in 512bytes sectors) */
- mddev_t *mddev; /* RAID array if running */
+ struct mddev *mddev; /* RAID array if running */
int last_events; /* IO event timestamp */
/*
extern int md_is_badblock(struct badblocks *bb, sector_t s, int sectors,
sector_t *first_bad, int *bad_sectors);
-static inline int is_badblock(mdk_rdev_t *rdev, sector_t s, int sectors,
+static inline int is_badblock(struct md_rdev *rdev, sector_t s, int sectors,
sector_t *first_bad, int *bad_sectors)
{
if (unlikely(rdev->badblocks.count)) {
}
return 0;
}
-extern int rdev_set_badblocks(mdk_rdev_t *rdev, sector_t s, int sectors,
+extern int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
int acknowledged);
-extern int rdev_clear_badblocks(mdk_rdev_t *rdev, sector_t s, int sectors);
+extern int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors);
extern void md_ack_all_badblocks(struct badblocks *bb);
-struct mddev_s
-{
+struct mddev {
void *private;
- struct mdk_personality *pers;
+ struct md_personality *pers;
dev_t unit;
int md_minor;
struct list_head disks;
atomic_t plug_cnt; /* If device is expecting
* more bios soon.
*/
- struct mdk_thread_s *thread; /* management thread */
- struct mdk_thread_s *sync_thread; /* doing resync or reconstruct */
+ struct md_thread *thread; /* management thread */
+ struct md_thread *sync_thread; /* doing resync or reconstruct */
sector_t curr_resync; /* last block scheduled */
/* As resync requests can complete out of order, we cannot easily track
* how much resync has been completed. So we occasionally pause until
atomic_t flush_pending;
struct work_struct flush_work;
struct work_struct event_work; /* used by dm to report failure event */
- void (*sync_super)(mddev_t *mddev, mdk_rdev_t *rdev);
+ void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
};
-static inline void rdev_dec_pending(mdk_rdev_t *rdev, mddev_t *mddev)
+static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
{
int faulty = test_bit(Faulty, &rdev->flags);
if (atomic_dec_and_test(&rdev->nr_pending) && faulty)
atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io);
}
-struct mdk_personality
+struct md_personality
{
char *name;
int level;
struct list_head list;
struct module *owner;
- int (*make_request)(mddev_t *mddev, struct bio *bio);
- int (*run)(mddev_t *mddev);
- int (*stop)(mddev_t *mddev);
- void (*status)(struct seq_file *seq, mddev_t *mddev);
+ void (*make_request)(struct mddev *mddev, struct bio *bio);
+ int (*run)(struct mddev *mddev);
+ int (*stop)(struct mddev *mddev);
+ void (*status)(struct seq_file *seq, struct mddev *mddev);
/* error_handler must set ->faulty and clear ->in_sync
* if appropriate, and should abort recovery if needed
*/
- void (*error_handler)(mddev_t *mddev, mdk_rdev_t *rdev);
- int (*hot_add_disk) (mddev_t *mddev, mdk_rdev_t *rdev);
- int (*hot_remove_disk) (mddev_t *mddev, int number);
- int (*spare_active) (mddev_t *mddev);
- sector_t (*sync_request)(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster);
- int (*resize) (mddev_t *mddev, sector_t sectors);
- sector_t (*size) (mddev_t *mddev, sector_t sectors, int raid_disks);
- int (*check_reshape) (mddev_t *mddev);
- int (*start_reshape) (mddev_t *mddev);
- void (*finish_reshape) (mddev_t *mddev);
+ void (*error_handler)(struct mddev *mddev, struct md_rdev *rdev);
+ int (*hot_add_disk) (struct mddev *mddev, struct md_rdev *rdev);
+ int (*hot_remove_disk) (struct mddev *mddev, int number);
+ int (*spare_active) (struct mddev *mddev);
+ sector_t (*sync_request)(struct mddev *mddev, sector_t sector_nr, int *skipped, int go_faster);
+ int (*resize) (struct mddev *mddev, sector_t sectors);
+ sector_t (*size) (struct mddev *mddev, sector_t sectors, int raid_disks);
+ int (*check_reshape) (struct mddev *mddev);
+ int (*start_reshape) (struct mddev *mddev);
+ void (*finish_reshape) (struct mddev *mddev);
/* quiesce moves between quiescence states
* 0 - fully active
* 1 - no new requests allowed
* others - reserved
*/
- void (*quiesce) (mddev_t *mddev, int state);
+ void (*quiesce) (struct mddev *mddev, int state);
/* takeover is used to transition an array from one
* personality to another. The new personality must be able
* to handle the data in the current layout.
* This needs to be installed and then ->run used to activate the
* array.
*/
- void *(*takeover) (mddev_t *mddev);
+ void *(*takeover) (struct mddev *mddev);
};
struct md_sysfs_entry {
struct attribute attr;
- ssize_t (*show)(mddev_t *, char *);
- ssize_t (*store)(mddev_t *, const char *, size_t);
+ ssize_t (*show)(struct mddev *, char *);
+ ssize_t (*store)(struct mddev *, const char *, size_t);
};
extern struct attribute_group md_bitmap_group;
sysfs_notify_dirent(sd);
}
-static inline char * mdname (mddev_t * mddev)
+static inline char * mdname (struct mddev * mddev)
{
return mddev->gendisk ? mddev->gendisk->disk_name : "mdX";
}
-static inline int sysfs_link_rdev(mddev_t *mddev, mdk_rdev_t *rdev)
+static inline int sysfs_link_rdev(struct mddev *mddev, struct md_rdev *rdev)
{
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
return sysfs_create_link(&mddev->kobj, &rdev->kobj, nm);
}
-static inline void sysfs_unlink_rdev(mddev_t *mddev, mdk_rdev_t *rdev)
+static inline void sysfs_unlink_rdev(struct mddev *mddev, struct md_rdev *rdev)
{
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
#define rdev_for_each_rcu(rdev, mddev) \
list_for_each_entry_rcu(rdev, &((mddev)->disks), same_set)
-typedef struct mdk_thread_s {
- void (*run) (mddev_t *mddev);
- mddev_t *mddev;
+struct md_thread {
+ void (*run) (struct mddev *mddev);
+ struct mddev *mddev;
wait_queue_head_t wqueue;
unsigned long flags;
struct task_struct *tsk;
unsigned long timeout;
-} mdk_thread_t;
+};
#define THREAD_WAKEUP 0
if (p) put_page(p);
}
-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 **threadp);
-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 int mddev_congested(mddev_t *mddev, int bits);
-extern void md_flush_request(mddev_t *mddev, struct bio *bio);
-extern void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev,
+extern int register_md_personality(struct md_personality *p);
+extern int unregister_md_personality(struct md_personality *p);
+extern struct md_thread *md_register_thread(
+ void (*run)(struct mddev *mddev),
+ struct mddev *mddev,
+ const char *name);
+extern void md_unregister_thread(struct md_thread **threadp);
+extern void md_wakeup_thread(struct md_thread *thread);
+extern void md_check_recovery(struct mddev *mddev);
+extern void md_write_start(struct mddev *mddev, struct bio *bi);
+extern void md_write_end(struct mddev *mddev);
+extern void md_done_sync(struct mddev *mddev, int blocks, int ok);
+extern void md_error(struct mddev *mddev, struct md_rdev *rdev);
+
+extern int mddev_congested(struct mddev *mddev, int bits);
+extern void md_flush_request(struct mddev *mddev, struct bio *bio);
+extern void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
sector_t sector, int size, struct page *page);
-extern void md_super_wait(mddev_t *mddev);
-extern int sync_page_io(mdk_rdev_t *rdev, sector_t sector, int size,
+extern void md_super_wait(struct mddev *mddev);
+extern int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
struct page *page, int rw, bool metadata_op);
-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);
-extern void md_set_array_sectors(mddev_t *mddev, sector_t array_sectors);
-extern int md_check_no_bitmap(mddev_t *mddev);
-extern int md_integrity_register(mddev_t *mddev);
-extern void md_integrity_add_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
+extern void md_do_sync(struct mddev *mddev);
+extern void md_new_event(struct mddev *mddev);
+extern int md_allow_write(struct mddev *mddev);
+extern void md_wait_for_blocked_rdev(struct md_rdev *rdev, struct mddev *mddev);
+extern void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors);
+extern int md_check_no_bitmap(struct mddev *mddev);
+extern int md_integrity_register(struct mddev *mddev);
+extern void md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev);
extern int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale);
extern void restore_bitmap_write_access(struct file *file);
-extern void mddev_init(mddev_t *mddev);
-extern int md_run(mddev_t *mddev);
-extern void md_stop(mddev_t *mddev);
-extern void md_stop_writes(mddev_t *mddev);
-extern int md_rdev_init(mdk_rdev_t *rdev);
+extern void mddev_init(struct mddev *mddev);
+extern int md_run(struct mddev *mddev);
+extern void md_stop(struct mddev *mddev);
+extern void md_stop_writes(struct mddev *mddev);
+extern int md_rdev_init(struct md_rdev *rdev);
-extern void mddev_suspend(mddev_t *mddev);
-extern void mddev_resume(mddev_t *mddev);
+extern void mddev_suspend(struct mddev *mddev);
+extern void mddev_resume(struct mddev *mddev);
extern struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask,
- mddev_t *mddev);
+ struct mddev *mddev);
extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
- mddev_t *mddev);
-extern int mddev_check_plugged(mddev_t *mddev);
+ struct mddev *mddev);
+extern int mddev_check_plugged(struct mddev *mddev);
extern void md_trim_bio(struct bio *bio, int offset, int size);
#endif /* _MD_MD_H */
git.openpandora.org / pandora-kernel.git / blobdiff