-/*******************************************************************************
- * Function: open_backup_targets
- * Description: Function opens file descriptors for all devices given in
- * info->devs
- * Parameters:
- * info : general array info
- * raid_disks : number of disks
- * raid_fds : table of device's file descriptors
- * super : intel super for raid10 degradation check
- * dev : intel device for raid10 degradation check
- * Returns:
- * 0 : success
- * -1 : fail
- ******************************************************************************/
-int open_backup_targets(struct mdinfo *info, int raid_disks, int *raid_fds,
- struct intel_super *super, struct imsm_dev *dev)
-{
- struct mdinfo *sd;
- int i;
- int opened = 0;
-
- for (i = 0; i < raid_disks; i++)
- raid_fds[i] = -1;
-
- for (sd = info->devs ; sd ; sd = sd->next) {
- char *dn;
-
- if (sd->disk.state & (1<<MD_DISK_FAULTY)) {
- dprintf("disk is faulty!!\n");
- continue;
- }
-
- if (sd->disk.raid_disk >= raid_disks || sd->disk.raid_disk < 0)
- continue;
-
- dn = map_dev(sd->disk.major,
- sd->disk.minor, 1);
- raid_fds[sd->disk.raid_disk] = dev_open(dn, O_RDWR);
- if (raid_fds[sd->disk.raid_disk] < 0) {
- pr_err("cannot open component\n");
- continue;
- }
- opened++;
- }
- /* check if maximum array degradation level is not exceeded
- */
- if ((raid_disks - opened) >
- imsm_get_allowed_degradation(info->new_level, raid_disks,
- super, dev)) {
- pr_err("Not enough disks can be opened.\n");
- close_targets(raid_fds, raid_disks);
- return -2;
- }
- return 0;
-}
-