diff options
Diffstat (limited to 'drivers/md/md.h')
| -rw-r--r-- | drivers/md/md.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h index 8e4c75c00d46..10597bfec000 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -74,13 +74,13 @@ struct mdk_rdev_s #define Blocked 8 /* An error occured on an externally * managed array, don't allow writes * until it is cleared */ -#define StateChanged 9 /* Faulty or Blocked has changed during - * interrupt, so it needs to be - * notified by the thread */ wait_queue_head_t blocked_wait; int desc_nr; /* descriptor index in the superblock */ int raid_disk; /* role of device in array */ + int new_raid_disk; /* role that the device will have in + * the array after a level-change completes. + */ int saved_raid_disk; /* role that device used to have in the * array and could again if we did a partial * resync from the bitmap @@ -153,6 +153,12 @@ struct mddev_s int external_size; /* size managed * externally */ __u64 events; + /* If the last 'event' was simply a clean->dirty transition, and + * we didn't write it to the spares, then it is safe and simple + * to just decrement the event count on a dirty->clean transition. + * So we record that possibility here. + */ + int can_decrease_events; char uuid[16]; @@ -240,7 +246,6 @@ struct mddev_s atomic_t active; /* general refcount */ atomic_t openers; /* number of active opens */ - int changed; /* true if we might need to reread partition info */ int degraded; /* whether md should consider * adding a spare */ @@ -279,9 +284,6 @@ struct mddev_s atomic_t writes_pending; struct request_queue *queue; /* for plugging ... */ - atomic_t write_behind; /* outstanding async IO */ - unsigned int max_write_behind; /* 0 = sync */ - struct bitmap *bitmap; /* the bitmap for the device */ struct { struct file *file; /* the bitmap file */ @@ -305,6 +307,7 @@ struct mddev_s atomic_t max_corr_read_errors; /* max read retries */ struct list_head all_mddevs; + struct attribute_group *to_remove; /* Generic barrier handling. * If there is a pending barrier request, all other * writes are blocked while the devices are flushed. @@ -336,7 +339,7 @@ struct mdk_personality int level; struct list_head list; struct module *owner; - int (*make_request)(struct request_queue *q, struct bio *bio); + 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); |