static void raid0_status(struct seq_file *seq, mddev_t *mddev)
{
-#undef MD_DEBUG
-#ifdef MD_DEBUG
- int j, k, h;
- char b[BDEVNAME_SIZE];
- raid0_conf_t *conf = mddev->private;
- int raid_disks = conf->strip_zone[0].nb_dev;
-
- sector_t zone_size;
- sector_t zone_start = 0;
- h = 0;
-
- for (j = 0; j < conf->nr_strip_zones; j++) {
- seq_printf(seq, " z%d", j);
- seq_printf(seq, "=[");
- for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
- seq_printf(seq, "%s/", bdevname(
- conf->devlist[j*raid_disks + k]
- ->bdev, b));
-
- zone_size = conf->strip_zone[j].zone_end - zone_start;
- seq_printf(seq, "] ze=%lld ds=%lld s=%lld\n",
- (unsigned long long)zone_start>>1,
- (unsigned long long)conf->strip_zone[j].dev_start>>1,
- (unsigned long long)zone_size>>1);
- zone_start = conf->strip_zone[j].zone_end;
- }
-#endif
seq_printf(seq, " %dk chunks", mddev->chunk_sectors / 2);
return;
}
else
return NULL;
}
-/*
- * The following can be used to debug the driver
- */
-#define RAID5_PARANOIA 1
-#if RAID5_PARANOIA && defined(CONFIG_SMP)
-# define CHECK_DEVLOCK() assert_spin_locked(&conf->device_lock)
-#else
-# define CHECK_DEVLOCK()
-#endif
-
-#ifdef DEBUG
-#define inline
-#define __inline__
-#endif
/*
* We maintain a biased count of active stripes in the bottom 16 bits of
pr_debug("insert_hash(), stripe %llu\n",
(unsigned long long)sh->sector);
- CHECK_DEVLOCK();
hlist_add_head(&sh->hash, hp);
}
struct stripe_head *sh = NULL;
struct list_head *first;
- CHECK_DEVLOCK();
if (list_empty(&conf->inactive_list))
goto out;
first = conf->inactive_list.next;
BUG_ON(test_bit(STRIPE_HANDLE, &sh->state));
BUG_ON(stripe_operations_active(sh));
- CHECK_DEVLOCK();
pr_debug("init_stripe called, stripe %llu\n",
(unsigned long long)sh->sector);
struct stripe_head *sh;
struct hlist_node *hn;
- CHECK_DEVLOCK();
pr_debug("__find_stripe, sector %llu\n", (unsigned long long)sector);
hlist_for_each_entry(sh, hn, stripe_hash(conf, sector), hash)
if (sh->sector == sector && sh->generation == generation)
return 0;
}
-#ifdef DEBUG
-static void print_sh(struct seq_file *seq, struct stripe_head *sh)
-{
- int i;
-
- seq_printf(seq, "sh %llu, pd_idx %d, state %ld.\n",
- (unsigned long long)sh->sector, sh->pd_idx, sh->state);
- seq_printf(seq, "sh %llu, count %d.\n",
- (unsigned long long)sh->sector, atomic_read(&sh->count));
- seq_printf(seq, "sh %llu, ", (unsigned long long)sh->sector);
- for (i = 0; i < sh->disks; i++) {
- seq_printf(seq, "(cache%d: %p %ld) ",
- i, sh->dev[i].page, sh->dev[i].flags);
- }
- seq_printf(seq, "\n");
-}
-
-static void printall(struct seq_file *seq, raid5_conf_t *conf)
-{
- struct stripe_head *sh;
- struct hlist_node *hn;
- int i;
-
- spin_lock_irq(&conf->device_lock);
- for (i = 0; i < NR_HASH; i++) {
- hlist_for_each_entry(sh, hn, &conf->stripe_hashtbl[i], hash) {
- if (sh->raid_conf != conf)
- continue;
- print_sh(seq, sh);
- }
- }
- spin_unlock_irq(&conf->device_lock);
-}
-#endif
-
static void status(struct seq_file *seq, mddev_t *mddev)
{
raid5_conf_t *conf = mddev->private;
conf->disks[i].rdev &&
test_bit(In_sync, &conf->disks[i].rdev->flags) ? "U" : "_");
seq_printf (seq, "]");
-#ifdef DEBUG
- seq_printf (seq, "\n");
- printall(seq, conf);
-#endif
}
static void print_raid5_conf (raid5_conf_t *conf)