fs/btrfs/space-info.c

37  *   3) btrfs_calc*_size.  These are the worst case calculations we used based
311 	found->bytes_used += block_group->used;
312 	found->disk_used += block_group->used * factor;
362 	 * space is actually usable.  For raid56, the space info used
386 	 * available space used by a data allocation, which could put us in a
416 	u64 used;
422 	used = btrfs_space_info_used(space_info, true);
425 	if (used + bytes < space_info->total_bytes + avail)
456 		u64 used = btrfs_space_info_used(space_info, true);
461 		if ((used + ticket->bytes <= space_info->total_bytes) ||
529 "space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu zone_unusable=%llu",
557 		avail = cache->length - cache->used - cache->pinned -
561 "block group %llu has %llu bytes, %llu used %llu pinned %llu reserved %llu delalloc %llu super %llu zone_unusable (%llu bytes available) %s",
562 			   cache->start, cache->length, cache->used, cache->pinned,
833 	u64 used;
841 	used = btrfs_space_info_used(space_info, true);
849 	if (space_info->total_bytes + avail < used)
850 		to_reclaim += used - (space_info->total_bytes + avail);
861 	u64 used;
872 	used = space_info->bytes_may_use + space_info->bytes_pinned;
875 	if (global_rsv_size >= used)
883 	if (used - global_rsv_size <= SZ_128M)
899 	 *   if (used >= ((total_bytes + avail) / 2))
903 	 * of the space_info used by bytes_used and we had 0 available we'd just
924 	used = space_info->bytes_used + space_info->bytes_reserved +
926 	if (used < space_info->total_bytes)
927 		thresh += space_info->total_bytes - used;
930 	used = space_info->bytes_pinned;
958 		used += btrfs_block_rsv_reserved(&fs_info->delayed_refs_rsv) +
961 		used += space_info->bytes_may_use - global_rsv_size;
963 	return (used >= thresh && !btrfs_fs_closing(fs_info) &&
1633 	u64 used;
1657 	used = btrfs_space_info_used(space_info, true);
1675 	    ((used + orig_bytes <= space_info->total_bytes) ||
1688 		used = btrfs_space_info_used(space_info, false);
1689 		if (used + orig_bytes <= space_info->total_bytes) {
1863 			       block_group->used) * factor;