fs/btrfs/qgroup.c

1897  * Inform qgroup to trace one dirty extent, its info is recorded in @record.
1904  * Return >0 for existing record, caller can free @record safely.
1909 				struct btrfs_qgroup_extent_record *record)
1914 	u64 bytenr = record->bytenr;
1920 	trace_btrfs_qgroup_trace_extent(fs_info, record);
1931 			if (record->data_rsv && !entry->data_rsv) {
1932 				entry->data_rsv = record->data_rsv;
1934 					record->data_rsv_refroot;
1940 	rb_link_node(&record->node, parent_node, p);
1941 	rb_insert_color(&record->node, &delayed_refs->dirty_extent_root);
2038 	struct btrfs_qgroup_extent_record *record;
2044 	record = kzalloc(sizeof(*record), GFP_NOFS);
2045 	if (!record)
2049 	record->bytenr = bytenr;
2050 	record->num_bytes = num_bytes;
2051 	record->old_roots = NULL;
2054 	ret = btrfs_qgroup_trace_extent_nolock(fs_info, delayed_refs, record);
2057 		kfree(record);
2060 	return btrfs_qgroup_trace_extent_post(trans, record);
2297 	 * Now both @dst_path and @src_path have been populated, record the tree
2407 	/* Now record this tree block and its counter part for qgroups */
2922 	struct btrfs_qgroup_extent_record *record;
2936 		record = rb_entry(node, struct btrfs_qgroup_extent_record,
2940 		trace_btrfs_qgroup_account_extents(fs_info, record);
2946 			ctx.bytenr = record->bytenr;
2951 			 * extent record.
2954 			 * we may have some record inserted during
2963 			if (!record->old_roots) {
2968 				record->old_roots = ctx.roots;
2985 				ulist_del(record->old_roots, qgroup_to_skip,
2988 			ret = btrfs_qgroup_account_extent(trans, record->bytenr,
2989 							  record->num_bytes,
2990 							  record->old_roots,
2992 			record->old_roots = NULL;
2997 				record->data_rsv_refroot,
2998 				record->data_rsv,
3001 		ulist_free(record->old_roots);
3005 		kfree(record);
3525 	 * no limits exceeded, now record the reservation into all qgroups
4392 	 * (since quota was disabled), so record what we reserved into root.
4553  * Delete all swapped blocks record of @root.
4554  * Every record here means we skipped a full subtree scan for qgroup.
4584  * Add subtree roots record into @subvol_root.
4629 	 * record the bytenr after swap, so we do the swap here.