} *major_names[BLKDEV_MAJOR_HASH_SIZE];
/* index in the above - for now: assume no multimajor ranges */
-static inline int major_to_index(int major)
+static inline int major_to_index(unsigned major)
{
return major % BLKDEV_MAJOR_HASH_SIZE;
}
static void *p;
p = disk_seqf_start(seqf, pos);
- if (!IS_ERR(p) && p && !*pos)
+ if (!IS_ERR_OR_NULL(p) && !*pos)
seq_puts(seqf, "major minor #blocks name\n\n");
return p;
}
{
struct disk_part_tbl *ptbl =
container_of(head, struct disk_part_tbl, rcu_head);
- struct gendisk *disk = ptbl->disk;
- struct request_queue *q = disk->queue;
- unsigned long flags;
kfree(ptbl);
-
- spin_lock_irqsave(q->queue_lock, flags);
- elv_quiesce_end(q);
- spin_unlock_irqrestore(q->queue_lock, flags);
}
/**
struct disk_part_tbl *new_ptbl)
{
struct disk_part_tbl *old_ptbl = disk->part_tbl;
- struct request_queue *q = disk->queue;
rcu_assign_pointer(disk->part_tbl, new_ptbl);
if (old_ptbl) {
rcu_assign_pointer(old_ptbl->last_lookup, NULL);
-
- spin_lock_irq(q->queue_lock);
- elv_quiesce_start(q);
- spin_unlock_irq(q->queue_lock);
-
call_rcu(&old_ptbl->rcu_head, disk_free_ptbl_rcu_cb);
}
}
return -ENOMEM;
new_ptbl->len = target;
- new_ptbl->disk = disk;
for (i = 0; i < len; i++)
rcu_assign_pointer(new_ptbl->part[i], old_ptbl->part[i]);
}
disk->part_tbl->part[0] = &disk->part0;
+ hd_ref_init(&disk->part0);
+
disk->minors = minors;
rand_initialize_disk(disk);
disk_to_dev(disk)->class = &block_class;