/* Doesn't do anything here. */
int
dm_target_snapshot_destroy(dm_table_entry_t * table_en)
{
dm_target_snapshot_config_t *tsc;
/*
* Destroy function is called for every target even if it
* doesn't have target_config.
*/
if (table_en->target_config == NULL)
return 0;
printf("Snapshot target destroy function called\n");
tsc = table_en->target_config;
/* Decrement pdev ref counter if 0 remove it */
dm_pdev_decr(tsc->tsc_snap_dev);
if (tsc->tsc_persistent_dev)
dm_pdev_decr(tsc->tsc_cow_dev);
/* Unbusy target so we can unload it */
dm_target_unbusy(table_en->target);
kmem_free(table_en->target_config, sizeof(dm_target_snapshot_config_t));
table_en->target_config = NULL;
return 0;
}
/* Decrement pdev and free allocated space. */
int
dm_target_snapshot_orig_destroy(dm_table_entry_t * table_en)
{
dm_target_snapshot_origin_config_t *tsoc;
/*
* Destroy function is called for every target even if it
* doesn't have target_config.
*/
if (table_en->target_config == NULL)
return 0;
tsoc = table_en->target_config;
/* Decrement pdev ref counter if 0 remove it */
dm_pdev_decr(tsoc->tsoc_real_dev);
/* Unbusy target so we can unload it */
dm_target_unbusy(table_en->target);
kmem_free(table_en->target_config, sizeof(dm_target_snapshot_origin_config_t));
table_en->target_config = NULL;
return 0;
}
/*
* Destroy target specific data. Decrement table pdevs.
*/
static int
dm_target_linear_destroy(dm_table_entry_t * table_en)
{
dm_target_linear_config_t *tlc;
/*
* Destroy function is called for every target even if it
* doesn't have target_config.
*/
if (table_en->target_config == NULL)
return 0;
tlc = table_en->target_config;
/* Decrement pdev ref counter if 0 remove it */
dm_pdev_decr(tlc->pdev);
/* Unbusy target so we can unload it */
dm_target_unbusy(table_en->target);
kfree(table_en->target_config, M_DMLINEAR);
table_en->target_config = NULL;
return 0;
}
static void
dm_target_stripe_destroy_config(dm_target_stripe_config_t *tsc)
{
int n;
for (n = 0; n < tsc->stripe_num; ++n) {
if (tsc->stripe_devs[n].pdev) {
dm_pdev_decr(tsc->stripe_devs[n].pdev);
tsc->stripe_devs[n].pdev = NULL;
}
}
kfree(tsc, M_DMSTRIPE);
}
