int dump_block_groups)
{
struct btrfs_block_group *cache;
+ u64 total_avail = 0;
int index = 0;
spin_lock(&info->lock);
down_read(&info->groups_sem);
again:
list_for_each_entry(cache, &info->block_groups[index], list) {
+ u64 avail;
+
spin_lock(&cache->lock);
+ avail = cache->length - cache->used - cache->pinned -
+ cache->reserved - cache->delalloc_bytes -
+ cache->bytes_super - cache->zone_unusable;
btrfs_info(fs_info,
- "block group %llu has %llu bytes, %llu used %llu pinned %llu reserved %llu zone_unusable %s",
- cache->start, cache->length, cache->used, cache->pinned,
- cache->reserved, cache->zone_unusable,
- cache->ro ? "[readonly]" : "");
+"block group %llu has %llu bytes, %llu used %llu pinned %llu reserved %llu delalloc %llu super %llu zone_unusable (%llu bytes available) %s",
+ cache->start, cache->length, cache->used, cache->pinned,
+ cache->reserved, cache->delalloc_bytes,
+ cache->bytes_super, cache->zone_unusable,
+ avail, cache->ro ? "[readonly]" : "");
spin_unlock(&cache->lock);
btrfs_dump_free_space(cache, bytes);
+ total_avail += avail;
}
if (++index < BTRFS_NR_RAID_TYPES)
goto again;
up_read(&info->groups_sem);
+
+ btrfs_info(fs_info, "%llu bytes available across all block groups", total_avail);
}
static inline u64 calc_reclaim_items_nr(const struct btrfs_fs_info *fs_info,
}
}
- /* Attempt to steal from the global rsv if we can. */
- if (!steal_from_global_rsv(fs_info, space_info, ticket)) {
+ /*
+ * Attempt to steal from the global rsv if we can, except if the fs was
+ * turned into error mode due to a transaction abort when flushing space
+ * above, in that case fail with the abort error instead of returning
+ * success to the caller if we can steal from the global rsv - this is
+ * just to have caller fail immeditelly instead of later when trying to
+ * modify the fs, making it easier to debug -ENOSPC problems.
+ */
+ if (BTRFS_FS_ERROR(fs_info)) {
+ ticket->error = BTRFS_FS_ERROR(fs_info);
+ remove_ticket(space_info, ticket);
+ } else if (!steal_from_global_rsv(fs_info, space_info, ticket)) {
ticket->error = -ENOSPC;
remove_ticket(space_info, ticket);
}