4 * This file and its contents are supplied under the terms of the
5 * Common Development and Distribution License ("CDDL"), version 1.0.
6 * You may only use this file in accordance with the terms of version
9 * A full copy of the text of the CDDL should have accompanied this
10 * source. A copy of the CDDL is also available via the Internet at
11 * http://www.illumos.org/license/CDDL.
16 * Copyright (c) 2017 by Delphix. All rights reserved.
22 #include <sys/zfs_context.h>
28 typedef struct aggsum_bucket {
31 uint64_t asc_borrowed;
32 uint64_t asc_pad[4]; /* pad out to cache line (64 bytes) */
33 } aggsum_bucket_t __aligned(CACHE_LINE_SIZE);
36 * Fan out over FANOUT cpus.
38 typedef struct aggsum {
40 int64_t as_lower_bound;
41 int64_t as_upper_bound;
42 uint64_t as_numbuckets;
43 aggsum_bucket_t *as_buckets;
46 void aggsum_init(aggsum_t *, uint64_t);
47 void aggsum_fini(aggsum_t *);
48 int64_t aggsum_lower_bound(aggsum_t *);
49 int64_t aggsum_upper_bound(aggsum_t *);
50 int aggsum_compare(aggsum_t *, uint64_t);
51 uint64_t aggsum_value(aggsum_t *);
52 void aggsum_add(aggsum_t *, int64_t);
58 #endif /* _SYS_AGGSUM_H */