185 lines
4.4 KiB
C
185 lines
4.4 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _MD_K_H
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#define _MD_K_H
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#include "../../../drivers/md/dm-bio-list.h"
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#define LEVEL_MULTIPATH (-4)
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#define LEVEL_LINEAR (-1)
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#define LEVEL_FAULTY (-5)
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#define LEVEL_NONE (-1000000)
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#define MaxSector (~(sector_t)0)
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#define MD_THREAD_NAME_MAX 14
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typedef struct mddev_s mddev_t;
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typedef struct mdk_rdev_s mdk_rdev_t;
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#define MAX_MD_DEVS 256
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#define MAX_CHUNK_SIZE (1<<30)
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struct mdk_rdev_s
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{
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struct list_head same_set;
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sector_t size;
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mddev_t *mddev;
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unsigned long last_events;
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struct block_device *bdev;
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struct page *sb_page;
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int sb_loaded;
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__u64 sb_events;
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sector_t data_offset;
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sector_t sb_offset;
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int sb_size;
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int preferred_minor;
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struct kobject kobj;
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unsigned long flags;
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#define Faulty 1
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#define In_sync 2
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#define WriteMostly 4
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#define BarriersNotsupp 5
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int desc_nr;
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int raid_disk;
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int saved_raid_disk;
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sector_t recovery_offset;
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atomic_t nr_pending;
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atomic_t read_errors;
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atomic_t corrected_errors;
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};
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struct mddev_s
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{
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void *private;
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struct mdk_personality *pers;
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dev_t unit;
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int md_minor;
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struct list_head disks;
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int sb_dirty;
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int ro;
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struct gendisk *gendisk;
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struct kobject kobj;
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int major_version,
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minor_version,
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patch_version;
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int persistent;
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int chunk_size;
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time_t ctime, utime;
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int level, layout;
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char clevel[16];
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int raid_disks;
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int max_disks;
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sector_t size;
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sector_t array_size;
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__u64 events;
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char uuid[16];
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sector_t reshape_position;
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int delta_disks, new_level, new_layout, new_chunk;
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struct mdk_thread_s *thread;
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struct mdk_thread_s *sync_thread;
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sector_t curr_resync;
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unsigned long resync_mark;
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sector_t resync_mark_cnt;
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sector_t curr_mark_cnt;
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sector_t resync_max_sectors;
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sector_t resync_mismatches;
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sector_t suspend_lo;
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sector_t suspend_hi;
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int sync_speed_min;
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int sync_speed_max;
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int ok_start_degraded;
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#define MD_RECOVERY_RUNNING 0
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#define MD_RECOVERY_SYNC 1
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#define MD_RECOVERY_ERR 2
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#define MD_RECOVERY_INTR 3
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#define MD_RECOVERY_DONE 4
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#define MD_RECOVERY_NEEDED 5
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#define MD_RECOVERY_REQUESTED 6
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#define MD_RECOVERY_CHECK 7
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#define MD_RECOVERY_RESHAPE 8
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#define MD_RECOVERY_FROZEN 9
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unsigned long recovery;
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int in_sync;
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struct mutex reconfig_mutex;
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atomic_t active;
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int changed;
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int degraded;
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int barriers_work;
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struct bio *biolist;
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atomic_t recovery_active;
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wait_queue_head_t recovery_wait;
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sector_t recovery_cp;
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spinlock_t write_lock;
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wait_queue_head_t sb_wait;
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atomic_t pending_writes;
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unsigned int safemode;
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unsigned int safemode_delay;
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struct timer_list safemode_timer;
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atomic_t writes_pending;
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request_queue_t *queue;
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atomic_t write_behind;
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unsigned int max_write_behind;
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struct bitmap *bitmap;
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struct file *bitmap_file;
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long bitmap_offset;
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long default_bitmap_offset;
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struct list_head all_mddevs;
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};
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struct md_sysfs_entry {
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struct attribute attr;
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ssize_t (*show)(mddev_t *, char *);
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ssize_t (*store)(mddev_t *, const char *, size_t);
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};
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#define ITERATE_RDEV_GENERIC(head,rdev,tmp) for ((tmp) = (head).next; (rdev) = (list_entry((tmp), mdk_rdev_t, same_set)), (tmp) = (tmp)->next, (tmp)->prev != &(head) ; )
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#define ITERATE_RDEV(mddev,rdev,tmp) ITERATE_RDEV_GENERIC((mddev)->disks,rdev,tmp)
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#define ITERATE_RDEV_PENDING(rdev,tmp) ITERATE_RDEV_GENERIC(pending_raid_disks,rdev,tmp)
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#define THREAD_WAKEUP 0
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#define __wait_event_lock_irq(wq, condition, lock, cmd) do { wait_queue_t __wait; init_waitqueue_entry(&__wait, current); add_wait_queue(&wq, &__wait); for (;;) { set_current_state(TASK_UNINTERRUPTIBLE); if (condition) break; spin_unlock_irq(&lock); cmd; schedule(); spin_lock_irq(&lock); } current->state = TASK_RUNNING; remove_wait_queue(&wq, &__wait); } while (0)
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#define wait_event_lock_irq(wq, condition, lock, cmd) do { if (condition) break; __wait_event_lock_irq(wq, condition, lock, cmd); } while (0)
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#endif
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