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cciss: simplify parameters to deregister_disk function 

Simplify parameters to deregister_disk function.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Stephen M. Cameron 2008-12-18 14:55:51 +01:00 committed by Jens Axboe
parent 62c1fe9d9f
commit a0ea862291
1 changed files with 9 additions and 7 deletions
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16
drivers/block/cciss.c
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@ -164,7 +164,7 @@ static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
static int cciss_revalidate(struct gendisk *disk);
static int rebuild_lun_table(ctlr_info_t *h, int first_time);
static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
static int deregister_disk(ctlr_info_t *h, int drv_index,
int clear_all);
static void cciss_read_capacity(int ctlr, int logvol, int withirq,
@ -1479,8 +1479,7 @@ static void cciss_update_drive_info(int ctlr, int drv_index, int first_time)
* which keeps the interrupt handler from starting
* the queue.
*/
ret = deregister_disk(h->gendisk[drv_index],
&h->drv[drv_index], 0);
ret = deregister_disk(h, drv_index, 0);
h->drv[drv_index].busy_configuring = 0;
}
@ -1698,8 +1697,7 @@ static int rebuild_lun_table(ctlr_info_t *h, int first_time)
spin_lock_irqsave(CCISS_LOCK(h->ctlr), flags);
h->drv[i].busy_configuring = 1;
spin_unlock_irqrestore(CCISS_LOCK(h->ctlr), flags);
return_code = deregister_disk(h->gendisk[i],
&h->drv[i], 1);
return_code = deregister_disk(h, i, 1);
h->drv[i].busy_configuring = 0;
}
}
@ -1769,15 +1767,19 @@ mem_msg:
* the highest_lun should be left unchanged and the LunID
* should not be cleared.
*/
static int deregister_disk(struct gendisk *disk, drive_info_struct *drv,
static int deregister_disk(ctlr_info_t *h, int drv_index,
int clear_all)
{
int i;
ctlr_info_t *h = get_host(disk);
struct gendisk *disk;
drive_info_struct *drv;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
drv = &h->drv[drv_index];
disk = h->gendisk[drv_index];
/* make sure logical volume is NOT is use */
if (clear_all || (h->gendisk[0] == disk)) {
if (drv->usage_count > 1)