nvlist_t *
dm_get_stats(char *slice, int stat_type, int *errp)
{
nvlist_t *stats = NULL;
/* BGH - removed everything except ability to check a slice */
if (stat_type == DM_SLICE_STAT_USE) {
/*
* If NOINUSE_CHECK is set, we do not perform
* the in use checking if the user has set stat_type
* DM_SLICE_STAT_USE
*/
if (NOINUSE_SET) {
stats = NULL;
return (stats);
}
}
stats = slice_get_stats(slice, stat_type, errp);
return (stats);
}
nvlist_t *
dm_get_stats(dm_descriptor_t desc, int stat_type, int *errp)
{
descriptor_t *dp;
nvlist_t *stats = NULL;
dp = (descriptor_t *)(uintptr_t)desc;
cache_rlock();
if (!cache_is_valid_desc(dp)) {
cache_unlock();
*errp = EBADF;
return (NULL);
}
/* verify that the descriptor is still valid */
if (dp->p.generic == NULL) {
cache_unlock();
*errp = ENODEV;
return (NULL);
}
switch (dp->type) {
case DM_DRIVE:
stats = drive_get_stats(dp, stat_type, errp);
break;
case DM_BUS:
stats = bus_get_stats(dp, stat_type, errp);
break;
case DM_CONTROLLER:
stats = controller_get_stats(dp, stat_type, errp);
break;
case DM_MEDIA:
stats = media_get_stats(dp, stat_type, errp);
break;
case DM_SLICE:
if (stat_type == DM_SLICE_STAT_USE) {
/*
* If NOINUSE_CHECK is set, we do not perform
* the in use checking if the user has set stat_type
* DM_SLICE_STAT_USE
*/
if (NOINUSE_SET) {
stats = NULL;
break;
}
}
stats = slice_get_stats(dp, stat_type, errp);
break;
case DM_PARTITION:
stats = partition_get_stats(dp, stat_type, errp);
break;
case DM_PATH:
stats = path_get_stats(dp, stat_type, errp);
break;
case DM_ALIAS:
stats = alias_get_stats(dp, stat_type, errp);
break;
default:
*errp = EINVAL;
break;
}
cache_unlock();
return (stats);
}