3005 lines
78 KiB
C
3005 lines
78 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* test_maple_tree.c: Test the maple tree API
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* Copyright (c) 2018-2022 Oracle Corporation
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* Author: Liam R. Howlett <Liam.Howlett@Oracle.com>
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*
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* Any tests that only require the interface of the tree.
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*/
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#include <linux/maple_tree.h>
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#include <linux/module.h>
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#define MTREE_ALLOC_MAX 0x2000000000000Ul
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#ifndef CONFIG_DEBUG_MAPLE_TREE
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#define CONFIG_DEBUG_MAPLE_TREE
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#endif
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#define CONFIG_MAPLE_SEARCH
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#define MAPLE_32BIT (MAPLE_NODE_SLOTS > 31)
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/* #define BENCH_SLOT_STORE */
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/* #define BENCH_NODE_STORE */
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/* #define BENCH_AWALK */
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/* #define BENCH_WALK */
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/* #define BENCH_MT_FOR_EACH */
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/* #define BENCH_FORK */
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#ifdef __KERNEL__
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#define mt_set_non_kernel(x) do {} while (0)
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#define mt_zero_nr_tallocated(x) do {} while (0)
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#else
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#define cond_resched() do {} while (0)
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#endif
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static int __init mtree_insert_index(struct maple_tree *mt,
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unsigned long index, gfp_t gfp)
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{
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return mtree_insert(mt, index, xa_mk_value(index & LONG_MAX), gfp);
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}
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static void __init mtree_erase_index(struct maple_tree *mt, unsigned long index)
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{
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MT_BUG_ON(mt, mtree_erase(mt, index) != xa_mk_value(index & LONG_MAX));
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MT_BUG_ON(mt, mtree_load(mt, index) != NULL);
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}
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static int __init mtree_test_insert(struct maple_tree *mt, unsigned long index,
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void *ptr)
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{
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return mtree_insert(mt, index, ptr, GFP_KERNEL);
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}
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static int __init mtree_test_store_range(struct maple_tree *mt,
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unsigned long start, unsigned long end, void *ptr)
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{
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return mtree_store_range(mt, start, end, ptr, GFP_KERNEL);
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}
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static int __init mtree_test_store(struct maple_tree *mt, unsigned long start,
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void *ptr)
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{
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return mtree_test_store_range(mt, start, start, ptr);
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}
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static int __init mtree_test_insert_range(struct maple_tree *mt,
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unsigned long start, unsigned long end, void *ptr)
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{
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return mtree_insert_range(mt, start, end, ptr, GFP_KERNEL);
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}
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static void __init *mtree_test_load(struct maple_tree *mt, unsigned long index)
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{
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return mtree_load(mt, index);
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}
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static void __init *mtree_test_erase(struct maple_tree *mt, unsigned long index)
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{
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return mtree_erase(mt, index);
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}
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#if defined(CONFIG_64BIT)
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static noinline void __init check_mtree_alloc_range(struct maple_tree *mt,
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unsigned long start, unsigned long end, unsigned long size,
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unsigned long expected, int eret, void *ptr)
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{
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unsigned long result = expected + 1;
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int ret;
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ret = mtree_alloc_range(mt, &result, ptr, size, start, end,
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GFP_KERNEL);
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MT_BUG_ON(mt, ret != eret);
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if (ret)
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return;
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MT_BUG_ON(mt, result != expected);
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}
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static noinline void __init check_mtree_alloc_rrange(struct maple_tree *mt,
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unsigned long start, unsigned long end, unsigned long size,
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unsigned long expected, int eret, void *ptr)
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{
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unsigned long result = expected + 1;
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int ret;
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ret = mtree_alloc_rrange(mt, &result, ptr, size, start, end - 1,
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GFP_KERNEL);
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MT_BUG_ON(mt, ret != eret);
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if (ret)
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return;
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MT_BUG_ON(mt, result != expected);
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}
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#endif
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static noinline void __init check_load(struct maple_tree *mt,
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unsigned long index, void *ptr)
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{
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void *ret = mtree_test_load(mt, index);
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if (ret != ptr)
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pr_err("Load %lu returned %p expect %p\n", index, ret, ptr);
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MT_BUG_ON(mt, ret != ptr);
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}
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static noinline void __init check_store_range(struct maple_tree *mt,
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unsigned long start, unsigned long end, void *ptr, int expected)
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{
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int ret = -EINVAL;
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unsigned long i;
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ret = mtree_test_store_range(mt, start, end, ptr);
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MT_BUG_ON(mt, ret != expected);
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if (ret)
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return;
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for (i = start; i <= end; i++)
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check_load(mt, i, ptr);
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}
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static noinline void __init check_insert_range(struct maple_tree *mt,
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unsigned long start, unsigned long end, void *ptr, int expected)
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{
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int ret = -EINVAL;
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unsigned long i;
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ret = mtree_test_insert_range(mt, start, end, ptr);
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MT_BUG_ON(mt, ret != expected);
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if (ret)
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return;
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for (i = start; i <= end; i++)
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check_load(mt, i, ptr);
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}
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static noinline void __init check_insert(struct maple_tree *mt,
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unsigned long index, void *ptr)
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{
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int ret = -EINVAL;
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ret = mtree_test_insert(mt, index, ptr);
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MT_BUG_ON(mt, ret != 0);
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}
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static noinline void __init check_dup_insert(struct maple_tree *mt,
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unsigned long index, void *ptr)
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{
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int ret = -EINVAL;
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ret = mtree_test_insert(mt, index, ptr);
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MT_BUG_ON(mt, ret != -EEXIST);
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}
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static noinline void __init check_index_load(struct maple_tree *mt,
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unsigned long index)
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{
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return check_load(mt, index, xa_mk_value(index & LONG_MAX));
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}
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static inline __init int not_empty(struct maple_node *node)
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{
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int i;
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if (node->parent)
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return 1;
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for (i = 0; i < ARRAY_SIZE(node->slot); i++)
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if (node->slot[i])
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return 1;
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return 0;
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}
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static noinline void __init check_rev_seq(struct maple_tree *mt,
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unsigned long max, bool verbose)
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{
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unsigned long i = max, j;
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MT_BUG_ON(mt, !mtree_empty(mt));
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mt_zero_nr_tallocated();
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while (i) {
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MT_BUG_ON(mt, mtree_insert_index(mt, i, GFP_KERNEL));
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for (j = i; j <= max; j++)
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check_index_load(mt, j);
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check_load(mt, i - 1, NULL);
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mt_set_in_rcu(mt);
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MT_BUG_ON(mt, !mt_height(mt));
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mt_clear_in_rcu(mt);
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MT_BUG_ON(mt, !mt_height(mt));
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i--;
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}
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check_load(mt, max + 1, NULL);
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#ifndef __KERNEL__
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if (verbose) {
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rcu_barrier();
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mt_dump(mt);
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pr_info(" %s test of 0-%lu %luK in %d active (%d total)\n",
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__func__, max, mt_get_alloc_size()/1024, mt_nr_allocated(),
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mt_nr_tallocated());
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}
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#endif
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}
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static noinline void __init check_seq(struct maple_tree *mt, unsigned long max,
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bool verbose)
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{
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unsigned long i, j;
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MT_BUG_ON(mt, !mtree_empty(mt));
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mt_zero_nr_tallocated();
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for (i = 0; i <= max; i++) {
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MT_BUG_ON(mt, mtree_insert_index(mt, i, GFP_KERNEL));
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for (j = 0; j <= i; j++)
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check_index_load(mt, j);
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if (i)
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MT_BUG_ON(mt, !mt_height(mt));
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check_load(mt, i + 1, NULL);
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}
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#ifndef __KERNEL__
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if (verbose) {
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rcu_barrier();
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mt_dump(mt);
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pr_info(" seq test of 0-%lu %luK in %d active (%d total)\n",
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max, mt_get_alloc_size()/1024, mt_nr_allocated(),
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mt_nr_tallocated());
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}
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#endif
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}
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static noinline void __init check_lb_not_empty(struct maple_tree *mt)
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{
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unsigned long i, j;
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unsigned long huge = 4000UL * 1000 * 1000;
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i = huge;
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while (i > 4096) {
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check_insert(mt, i, (void *) i);
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for (j = huge; j >= i; j /= 2) {
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check_load(mt, j-1, NULL);
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check_load(mt, j, (void *) j);
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check_load(mt, j+1, NULL);
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}
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i /= 2;
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}
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mtree_destroy(mt);
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}
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static noinline void __init check_lower_bound_split(struct maple_tree *mt)
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{
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MT_BUG_ON(mt, !mtree_empty(mt));
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check_lb_not_empty(mt);
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}
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static noinline void __init check_upper_bound_split(struct maple_tree *mt)
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{
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unsigned long i, j;
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unsigned long huge;
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MT_BUG_ON(mt, !mtree_empty(mt));
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if (MAPLE_32BIT)
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huge = 2147483647UL;
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else
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huge = 4000UL * 1000 * 1000;
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i = 4096;
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while (i < huge) {
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check_insert(mt, i, (void *) i);
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for (j = i; j >= huge; j *= 2) {
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check_load(mt, j-1, NULL);
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check_load(mt, j, (void *) j);
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check_load(mt, j+1, NULL);
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}
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i *= 2;
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}
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mtree_destroy(mt);
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}
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static noinline void __init check_mid_split(struct maple_tree *mt)
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{
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unsigned long huge = 8000UL * 1000 * 1000;
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check_insert(mt, huge, (void *) huge);
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check_insert(mt, 0, xa_mk_value(0));
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check_lb_not_empty(mt);
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}
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static noinline void __init check_rev_find(struct maple_tree *mt)
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{
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int i, nr_entries = 200;
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void *val;
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MA_STATE(mas, mt, 0, 0);
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for (i = 0; i <= nr_entries; i++)
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mtree_store_range(mt, i*10, i*10 + 5,
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xa_mk_value(i), GFP_KERNEL);
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rcu_read_lock();
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mas_set(&mas, 1000);
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val = mas_find_rev(&mas, 1000);
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MT_BUG_ON(mt, val != xa_mk_value(100));
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val = mas_find_rev(&mas, 1000);
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MT_BUG_ON(mt, val != NULL);
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mas_set(&mas, 999);
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val = mas_find_rev(&mas, 997);
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MT_BUG_ON(mt, val != NULL);
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mas_set(&mas, 1000);
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val = mas_find_rev(&mas, 900);
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MT_BUG_ON(mt, val != xa_mk_value(100));
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val = mas_find_rev(&mas, 900);
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MT_BUG_ON(mt, val != xa_mk_value(99));
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mas_set(&mas, 20);
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val = mas_find_rev(&mas, 0);
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MT_BUG_ON(mt, val != xa_mk_value(2));
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val = mas_find_rev(&mas, 0);
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MT_BUG_ON(mt, val != xa_mk_value(1));
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val = mas_find_rev(&mas, 0);
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MT_BUG_ON(mt, val != xa_mk_value(0));
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val = mas_find_rev(&mas, 0);
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MT_BUG_ON(mt, val != NULL);
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rcu_read_unlock();
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}
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static noinline void __init check_find(struct maple_tree *mt)
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{
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unsigned long val = 0;
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unsigned long count;
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unsigned long max;
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unsigned long top;
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unsigned long last = 0, index = 0;
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void *entry, *entry2;
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MA_STATE(mas, mt, 0, 0);
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/* Insert 0. */
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MT_BUG_ON(mt, mtree_insert_index(mt, val++, GFP_KERNEL));
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#if defined(CONFIG_64BIT)
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top = 4398046511104UL;
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#else
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top = ULONG_MAX;
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#endif
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if (MAPLE_32BIT) {
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count = 15;
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} else {
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count = 20;
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}
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for (int i = 0; i <= count; i++) {
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if (val != 64)
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MT_BUG_ON(mt, mtree_insert_index(mt, val, GFP_KERNEL));
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else
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MT_BUG_ON(mt, mtree_insert(mt, val,
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XA_ZERO_ENTRY, GFP_KERNEL));
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val <<= 2;
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}
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val = 0;
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mas_set(&mas, val);
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mas_lock(&mas);
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while ((entry = mas_find(&mas, 268435456)) != NULL) {
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if (val != 64)
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MT_BUG_ON(mt, xa_mk_value(val) != entry);
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else
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MT_BUG_ON(mt, entry != XA_ZERO_ENTRY);
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val <<= 2;
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/* For zero check. */
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if (!val)
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val = 1;
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}
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mas_unlock(&mas);
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val = 0;
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mas_set(&mas, val);
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mas_lock(&mas);
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mas_for_each(&mas, entry, ULONG_MAX) {
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if (val != 64)
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MT_BUG_ON(mt, xa_mk_value(val) != entry);
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else
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MT_BUG_ON(mt, entry != XA_ZERO_ENTRY);
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val <<= 2;
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/* For zero check. */
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if (!val)
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val = 1;
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}
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mas_unlock(&mas);
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/* Test mas_pause */
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val = 0;
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mas_set(&mas, val);
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mas_lock(&mas);
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mas_for_each(&mas, entry, ULONG_MAX) {
|
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if (val != 64)
|
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MT_BUG_ON(mt, xa_mk_value(val) != entry);
|
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else
|
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MT_BUG_ON(mt, entry != XA_ZERO_ENTRY);
|
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val <<= 2;
|
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/* For zero check. */
|
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if (!val)
|
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val = 1;
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|
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mas_pause(&mas);
|
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mas_unlock(&mas);
|
||
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mas_lock(&mas);
|
||
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}
|
||
|
mas_unlock(&mas);
|
||
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|
||
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val = 0;
|
||
|
max = 300; /* A value big enough to include XA_ZERO_ENTRY at 64. */
|
||
|
mt_for_each(mt, entry, index, max) {
|
||
|
MT_BUG_ON(mt, xa_mk_value(val) != entry);
|
||
|
val <<= 2;
|
||
|
if (val == 64) /* Skip zero entry. */
|
||
|
val <<= 2;
|
||
|
/* For zero check. */
|
||
|
if (!val)
|
||
|
val = 1;
|
||
|
}
|
||
|
|
||
|
val = 0;
|
||
|
max = 0;
|
||
|
index = 0;
|
||
|
MT_BUG_ON(mt, mtree_insert_index(mt, ULONG_MAX, GFP_KERNEL));
|
||
|
mt_for_each(mt, entry, index, ULONG_MAX) {
|
||
|
if (val == top)
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(LONG_MAX));
|
||
|
else
|
||
|
MT_BUG_ON(mt, xa_mk_value(val) != entry);
|
||
|
|
||
|
/* Workaround for 32bit */
|
||
|
if ((val << 2) < val)
|
||
|
val = ULONG_MAX;
|
||
|
else
|
||
|
val <<= 2;
|
||
|
|
||
|
if (val == 64) /* Skip zero entry. */
|
||
|
val <<= 2;
|
||
|
/* For zero check. */
|
||
|
if (!val)
|
||
|
val = 1;
|
||
|
max++;
|
||
|
MT_BUG_ON(mt, max > 25);
|
||
|
}
|
||
|
mtree_erase_index(mt, ULONG_MAX);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
index = 17;
|
||
|
entry = mt_find(mt, &index, 512);
|
||
|
MT_BUG_ON(mt, xa_mk_value(256) != entry);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
index = 17;
|
||
|
entry = mt_find(mt, &index, 20);
|
||
|
MT_BUG_ON(mt, entry != NULL);
|
||
|
|
||
|
|
||
|
/* Range check.. */
|
||
|
/* Insert ULONG_MAX */
|
||
|
MT_BUG_ON(mt, mtree_insert_index(mt, ULONG_MAX, GFP_KERNEL));
|
||
|
|
||
|
val = 0;
|
||
|
mas_set(&mas, 0);
|
||
|
mas_lock(&mas);
|
||
|
mas_for_each(&mas, entry, ULONG_MAX) {
|
||
|
if (val == 64)
|
||
|
MT_BUG_ON(mt, entry != XA_ZERO_ENTRY);
|
||
|
else if (val == top)
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(LONG_MAX));
|
||
|
else
|
||
|
MT_BUG_ON(mt, xa_mk_value(val) != entry);
|
||
|
|
||
|
/* Workaround for 32bit */
|
||
|
if ((val << 2) < val)
|
||
|
val = ULONG_MAX;
|
||
|
else
|
||
|
val <<= 2;
|
||
|
|
||
|
/* For zero check. */
|
||
|
if (!val)
|
||
|
val = 1;
|
||
|
mas_pause(&mas);
|
||
|
mas_unlock(&mas);
|
||
|
mas_lock(&mas);
|
||
|
}
|
||
|
mas_unlock(&mas);
|
||
|
|
||
|
mas_set(&mas, 1048576);
|
||
|
mas_lock(&mas);
|
||
|
entry = mas_find(&mas, 1048576);
|
||
|
mas_unlock(&mas);
|
||
|
MT_BUG_ON(mas.tree, entry == NULL);
|
||
|
|
||
|
/*
|
||
|
* Find last value.
|
||
|
* 1. get the expected value, leveraging the existence of an end entry
|
||
|
* 2. delete end entry
|
||
|
* 3. find the last value but searching for ULONG_MAX and then using
|
||
|
* prev
|
||
|
*/
|
||
|
/* First, get the expected result. */
|
||
|
mas_lock(&mas);
|
||
|
mas_reset(&mas);
|
||
|
mas.index = ULONG_MAX; /* start at max.. */
|
||
|
entry = mas_find(&mas, ULONG_MAX);
|
||
|
entry = mas_prev(&mas, 0);
|
||
|
index = mas.index;
|
||
|
last = mas.last;
|
||
|
|
||
|
/* Erase the last entry. */
|
||
|
mas_reset(&mas);
|
||
|
mas.index = ULONG_MAX;
|
||
|
mas.last = ULONG_MAX;
|
||
|
mas_erase(&mas);
|
||
|
|
||
|
/* Get the previous value from MAS_START */
|
||
|
mas_reset(&mas);
|
||
|
entry2 = mas_prev(&mas, 0);
|
||
|
|
||
|
/* Check results. */
|
||
|
MT_BUG_ON(mt, entry != entry2);
|
||
|
MT_BUG_ON(mt, index != mas.index);
|
||
|
MT_BUG_ON(mt, last != mas.last);
|
||
|
|
||
|
|
||
|
mas.node = MAS_NONE;
|
||
|
mas.index = ULONG_MAX;
|
||
|
mas.last = ULONG_MAX;
|
||
|
entry2 = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, entry != entry2);
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
MT_BUG_ON(mt, mas_prev(&mas, 0) != NULL);
|
||
|
|
||
|
mas_unlock(&mas);
|
||
|
mtree_destroy(mt);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_find_2(struct maple_tree *mt)
|
||
|
{
|
||
|
unsigned long i, j;
|
||
|
void *entry;
|
||
|
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
rcu_read_lock();
|
||
|
mas_for_each(&mas, entry, ULONG_MAX)
|
||
|
MT_BUG_ON(mt, true);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
for (i = 0; i < 256; i++) {
|
||
|
mtree_insert_index(mt, i, GFP_KERNEL);
|
||
|
j = 0;
|
||
|
mas_set(&mas, 0);
|
||
|
rcu_read_lock();
|
||
|
mas_for_each(&mas, entry, ULONG_MAX) {
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(j));
|
||
|
j++;
|
||
|
}
|
||
|
rcu_read_unlock();
|
||
|
MT_BUG_ON(mt, j != i + 1);
|
||
|
}
|
||
|
|
||
|
for (i = 0; i < 256; i++) {
|
||
|
mtree_erase_index(mt, i);
|
||
|
j = i + 1;
|
||
|
mas_set(&mas, 0);
|
||
|
rcu_read_lock();
|
||
|
mas_for_each(&mas, entry, ULONG_MAX) {
|
||
|
if (xa_is_zero(entry))
|
||
|
continue;
|
||
|
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(j));
|
||
|
j++;
|
||
|
}
|
||
|
rcu_read_unlock();
|
||
|
MT_BUG_ON(mt, j != 256);
|
||
|
}
|
||
|
|
||
|
/*MT_BUG_ON(mt, !mtree_empty(mt)); */
|
||
|
}
|
||
|
|
||
|
|
||
|
#if defined(CONFIG_64BIT)
|
||
|
static noinline void __init check_alloc_rev_range(struct maple_tree *mt)
|
||
|
{
|
||
|
/*
|
||
|
* Generated by:
|
||
|
* cat /proc/self/maps | awk '{print $1}'|
|
||
|
* awk -F "-" '{printf "0x%s, 0x%s, ", $1, $2}'
|
||
|
*/
|
||
|
|
||
|
static const unsigned long range[] = {
|
||
|
/* Inclusive , Exclusive. */
|
||
|
0x565234af2000, 0x565234af4000,
|
||
|
0x565234af4000, 0x565234af9000,
|
||
|
0x565234af9000, 0x565234afb000,
|
||
|
0x565234afc000, 0x565234afd000,
|
||
|
0x565234afd000, 0x565234afe000,
|
||
|
0x565235def000, 0x565235e10000,
|
||
|
0x7f36d4bfd000, 0x7f36d4ee2000,
|
||
|
0x7f36d4ee2000, 0x7f36d4f04000,
|
||
|
0x7f36d4f04000, 0x7f36d504c000,
|
||
|
0x7f36d504c000, 0x7f36d5098000,
|
||
|
0x7f36d5098000, 0x7f36d5099000,
|
||
|
0x7f36d5099000, 0x7f36d509d000,
|
||
|
0x7f36d509d000, 0x7f36d509f000,
|
||
|
0x7f36d509f000, 0x7f36d50a5000,
|
||
|
0x7f36d50b9000, 0x7f36d50db000,
|
||
|
0x7f36d50db000, 0x7f36d50dc000,
|
||
|
0x7f36d50dc000, 0x7f36d50fa000,
|
||
|
0x7f36d50fa000, 0x7f36d5102000,
|
||
|
0x7f36d5102000, 0x7f36d5103000,
|
||
|
0x7f36d5103000, 0x7f36d5104000,
|
||
|
0x7f36d5104000, 0x7f36d5105000,
|
||
|
0x7fff5876b000, 0x7fff5878d000,
|
||
|
0x7fff5878e000, 0x7fff58791000,
|
||
|
0x7fff58791000, 0x7fff58793000,
|
||
|
};
|
||
|
|
||
|
static const unsigned long holes[] = {
|
||
|
/*
|
||
|
* Note: start of hole is INCLUSIVE
|
||
|
* end of hole is EXCLUSIVE
|
||
|
* (opposite of the above table.)
|
||
|
* Start of hole, end of hole, size of hole (+1)
|
||
|
*/
|
||
|
0x565234afb000, 0x565234afc000, 0x1000,
|
||
|
0x565234afe000, 0x565235def000, 0x12F1000,
|
||
|
0x565235e10000, 0x7f36d4bfd000, 0x28E49EDED000,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* req_range consists of 4 values.
|
||
|
* 1. min index
|
||
|
* 2. max index
|
||
|
* 3. size
|
||
|
* 4. number that should be returned.
|
||
|
* 5. return value
|
||
|
*/
|
||
|
static const unsigned long req_range[] = {
|
||
|
0x565234af9000, /* Min */
|
||
|
0x7fff58791000, /* Max */
|
||
|
0x1000, /* Size */
|
||
|
0x7fff5878d << 12, /* First rev hole of size 0x1000 */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
0x0, /* Min */
|
||
|
0x565234AF1 << 12, /* Max */
|
||
|
0x3000, /* Size */
|
||
|
0x565234AEE << 12, /* max - 3. */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
0x0, /* Min */
|
||
|
-1, /* Max */
|
||
|
0x1000, /* Size */
|
||
|
562949953421311 << 12,/* First rev hole of size 0x1000 */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
0x0, /* Min */
|
||
|
0x7F36D510A << 12, /* Max */
|
||
|
0x4000, /* Size */
|
||
|
0x7F36D5106 << 12, /* First rev hole of size 0x4000 */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
/* Ascend test. */
|
||
|
0x0,
|
||
|
34148798629 << 12,
|
||
|
19 << 12,
|
||
|
34148797418 << 12,
|
||
|
0x0,
|
||
|
|
||
|
/* Too big test. */
|
||
|
0x0,
|
||
|
18446744073709551615UL,
|
||
|
562915594369134UL << 12,
|
||
|
0x0,
|
||
|
-EBUSY,
|
||
|
|
||
|
};
|
||
|
|
||
|
int i, range_count = ARRAY_SIZE(range);
|
||
|
int req_range_count = ARRAY_SIZE(req_range);
|
||
|
unsigned long min = 0;
|
||
|
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
mtree_store_range(mt, MTREE_ALLOC_MAX, ULONG_MAX, XA_ZERO_ENTRY,
|
||
|
GFP_KERNEL);
|
||
|
#define DEBUG_REV_RANGE 0
|
||
|
for (i = 0; i < range_count; i += 2) {
|
||
|
/* Inclusive, Inclusive (with the -1) */
|
||
|
|
||
|
#if DEBUG_REV_RANGE
|
||
|
pr_debug("\t%s: Insert %lu-%lu\n", __func__, range[i] >> 12,
|
||
|
(range[i + 1] >> 12) - 1);
|
||
|
#endif
|
||
|
check_insert_range(mt, range[i] >> 12, (range[i + 1] >> 12) - 1,
|
||
|
xa_mk_value(range[i] >> 12), 0);
|
||
|
mt_validate(mt);
|
||
|
}
|
||
|
|
||
|
|
||
|
mas_lock(&mas);
|
||
|
for (i = 0; i < ARRAY_SIZE(holes); i += 3) {
|
||
|
#if DEBUG_REV_RANGE
|
||
|
pr_debug("Search from %lu-%lu for gap %lu should be at %lu\n",
|
||
|
min, holes[i+1]>>12, holes[i+2]>>12,
|
||
|
holes[i] >> 12);
|
||
|
#endif
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, min,
|
||
|
holes[i+1] >> 12,
|
||
|
holes[i+2] >> 12));
|
||
|
#if DEBUG_REV_RANGE
|
||
|
pr_debug("Found %lu %lu\n", mas.index, mas.last);
|
||
|
pr_debug("gap %lu %lu\n", (holes[i] >> 12),
|
||
|
(holes[i+1] >> 12));
|
||
|
#endif
|
||
|
MT_BUG_ON(mt, mas.last + 1 != (holes[i+1] >> 12));
|
||
|
MT_BUG_ON(mt, mas.index != (holes[i+1] >> 12) - (holes[i+2] >> 12));
|
||
|
min = holes[i+1] >> 12;
|
||
|
mas_reset(&mas);
|
||
|
}
|
||
|
|
||
|
mas_unlock(&mas);
|
||
|
for (i = 0; i < req_range_count; i += 5) {
|
||
|
#if DEBUG_REV_RANGE
|
||
|
pr_debug("\tReverse request between %lu-%lu size %lu, should get %lu\n",
|
||
|
req_range[i] >> 12,
|
||
|
(req_range[i + 1] >> 12) - 1,
|
||
|
req_range[i+2] >> 12,
|
||
|
req_range[i+3] >> 12);
|
||
|
#endif
|
||
|
check_mtree_alloc_rrange(mt,
|
||
|
req_range[i] >> 12, /* start */
|
||
|
req_range[i+1] >> 12, /* end */
|
||
|
req_range[i+2] >> 12, /* size */
|
||
|
req_range[i+3] >> 12, /* expected address */
|
||
|
req_range[i+4], /* expected return */
|
||
|
xa_mk_value(req_range[i] >> 12)); /* pointer */
|
||
|
mt_validate(mt);
|
||
|
}
|
||
|
|
||
|
mt_set_non_kernel(1);
|
||
|
mtree_erase(mt, 34148798727); /* create a deleted range. */
|
||
|
check_mtree_alloc_rrange(mt, 0, 34359052173, 210253414,
|
||
|
34148798725, 0, mt);
|
||
|
|
||
|
mtree_destroy(mt);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_alloc_range(struct maple_tree *mt)
|
||
|
{
|
||
|
/*
|
||
|
* Generated by:
|
||
|
* cat /proc/self/maps|awk '{print $1}'|
|
||
|
* awk -F "-" '{printf "0x%s, 0x%s, ", $1, $2}'
|
||
|
*/
|
||
|
|
||
|
static const unsigned long range[] = {
|
||
|
/* Inclusive , Exclusive. */
|
||
|
0x565234af2000, 0x565234af4000,
|
||
|
0x565234af4000, 0x565234af9000,
|
||
|
0x565234af9000, 0x565234afb000,
|
||
|
0x565234afc000, 0x565234afd000,
|
||
|
0x565234afd000, 0x565234afe000,
|
||
|
0x565235def000, 0x565235e10000,
|
||
|
0x7f36d4bfd000, 0x7f36d4ee2000,
|
||
|
0x7f36d4ee2000, 0x7f36d4f04000,
|
||
|
0x7f36d4f04000, 0x7f36d504c000,
|
||
|
0x7f36d504c000, 0x7f36d5098000,
|
||
|
0x7f36d5098000, 0x7f36d5099000,
|
||
|
0x7f36d5099000, 0x7f36d509d000,
|
||
|
0x7f36d509d000, 0x7f36d509f000,
|
||
|
0x7f36d509f000, 0x7f36d50a5000,
|
||
|
0x7f36d50b9000, 0x7f36d50db000,
|
||
|
0x7f36d50db000, 0x7f36d50dc000,
|
||
|
0x7f36d50dc000, 0x7f36d50fa000,
|
||
|
0x7f36d50fa000, 0x7f36d5102000,
|
||
|
0x7f36d5102000, 0x7f36d5103000,
|
||
|
0x7f36d5103000, 0x7f36d5104000,
|
||
|
0x7f36d5104000, 0x7f36d5105000,
|
||
|
0x7fff5876b000, 0x7fff5878d000,
|
||
|
0x7fff5878e000, 0x7fff58791000,
|
||
|
0x7fff58791000, 0x7fff58793000,
|
||
|
};
|
||
|
static const unsigned long holes[] = {
|
||
|
/* Start of hole, end of hole, size of hole (+1) */
|
||
|
0x565234afb000, 0x565234afc000, 0x1000,
|
||
|
0x565234afe000, 0x565235def000, 0x12F1000,
|
||
|
0x565235e10000, 0x7f36d4bfd000, 0x28E49EDED000,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* req_range consists of 4 values.
|
||
|
* 1. min index
|
||
|
* 2. max index
|
||
|
* 3. size
|
||
|
* 4. number that should be returned.
|
||
|
* 5. return value
|
||
|
*/
|
||
|
static const unsigned long req_range[] = {
|
||
|
0x565234af9000, /* Min */
|
||
|
0x7fff58791000, /* Max */
|
||
|
0x1000, /* Size */
|
||
|
0x565234afb000, /* First hole in our data of size 1000. */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
0x0, /* Min */
|
||
|
0x7fff58791000, /* Max */
|
||
|
0x1F00, /* Size */
|
||
|
0x0, /* First hole in our data of size 2000. */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
/* Test ascend. */
|
||
|
34148797436 << 12, /* Min */
|
||
|
0x7fff587AF000, /* Max */
|
||
|
0x3000, /* Size */
|
||
|
34148798629 << 12, /* Expected location */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
/* Test failing. */
|
||
|
34148798623 << 12, /* Min */
|
||
|
34148798683 << 12, /* Max */
|
||
|
0x15000, /* Size */
|
||
|
0, /* Expected location */
|
||
|
-EBUSY, /* Return value failed. */
|
||
|
|
||
|
/* Test filling entire gap. */
|
||
|
34148798623 << 12, /* Min */
|
||
|
0x7fff587AF000, /* Max */
|
||
|
0x10000, /* Size */
|
||
|
34148798632 << 12, /* Expected location */
|
||
|
0, /* Return value success. */
|
||
|
|
||
|
/* Test walking off the end of root. */
|
||
|
0, /* Min */
|
||
|
-1, /* Max */
|
||
|
-1, /* Size */
|
||
|
0, /* Expected location */
|
||
|
-EBUSY, /* Return value failure. */
|
||
|
|
||
|
/* Test looking for too large a hole across entire range. */
|
||
|
0, /* Min */
|
||
|
-1, /* Max */
|
||
|
4503599618982063UL << 12, /* Size */
|
||
|
34359052178 << 12, /* Expected location */
|
||
|
-EBUSY, /* Return failure. */
|
||
|
};
|
||
|
int i, range_count = ARRAY_SIZE(range);
|
||
|
int req_range_count = ARRAY_SIZE(req_range);
|
||
|
unsigned long min = 0x565234af2000;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
mtree_store_range(mt, MTREE_ALLOC_MAX, ULONG_MAX, XA_ZERO_ENTRY,
|
||
|
GFP_KERNEL);
|
||
|
for (i = 0; i < range_count; i += 2) {
|
||
|
#define DEBUG_ALLOC_RANGE 0
|
||
|
#if DEBUG_ALLOC_RANGE
|
||
|
pr_debug("\tInsert %lu-%lu\n", range[i] >> 12,
|
||
|
(range[i + 1] >> 12) - 1);
|
||
|
mt_dump(mt);
|
||
|
#endif
|
||
|
check_insert_range(mt, range[i] >> 12, (range[i + 1] >> 12) - 1,
|
||
|
xa_mk_value(range[i] >> 12), 0);
|
||
|
mt_validate(mt);
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
mas_lock(&mas);
|
||
|
for (i = 0; i < ARRAY_SIZE(holes); i += 3) {
|
||
|
|
||
|
#if DEBUG_ALLOC_RANGE
|
||
|
pr_debug("\tGet empty %lu-%lu size %lu (%lx-%lx)\n", min >> 12,
|
||
|
holes[i+1] >> 12, holes[i+2] >> 12,
|
||
|
min, holes[i+1]);
|
||
|
#endif
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, min >> 12,
|
||
|
holes[i+1] >> 12,
|
||
|
holes[i+2] >> 12));
|
||
|
MT_BUG_ON(mt, mas.index != holes[i] >> 12);
|
||
|
min = holes[i+1];
|
||
|
mas_reset(&mas);
|
||
|
}
|
||
|
mas_unlock(&mas);
|
||
|
for (i = 0; i < req_range_count; i += 5) {
|
||
|
#if DEBUG_ALLOC_RANGE
|
||
|
pr_debug("\tTest %d: %lu-%lu size %lu expected %lu (%lu-%lu)\n",
|
||
|
i/5, req_range[i] >> 12, req_range[i + 1] >> 12,
|
||
|
req_range[i + 2] >> 12, req_range[i + 3] >> 12,
|
||
|
req_range[i], req_range[i+1]);
|
||
|
#endif
|
||
|
check_mtree_alloc_range(mt,
|
||
|
req_range[i] >> 12, /* start */
|
||
|
req_range[i+1] >> 12, /* end */
|
||
|
req_range[i+2] >> 12, /* size */
|
||
|
req_range[i+3] >> 12, /* expected address */
|
||
|
req_range[i+4], /* expected return */
|
||
|
xa_mk_value(req_range[i] >> 12)); /* pointer */
|
||
|
mt_validate(mt);
|
||
|
#if DEBUG_ALLOC_RANGE
|
||
|
mt_dump(mt);
|
||
|
#endif
|
||
|
}
|
||
|
|
||
|
mtree_destroy(mt);
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
static noinline void __init check_ranges(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, val, val2;
|
||
|
static const unsigned long r[] = {
|
||
|
10, 15,
|
||
|
20, 25,
|
||
|
17, 22, /* Overlaps previous range. */
|
||
|
9, 1000, /* Huge. */
|
||
|
100, 200,
|
||
|
45, 168,
|
||
|
118, 128,
|
||
|
};
|
||
|
|
||
|
MT_BUG_ON(mt, !mtree_empty(mt));
|
||
|
check_insert_range(mt, r[0], r[1], xa_mk_value(r[0]), 0);
|
||
|
check_insert_range(mt, r[2], r[3], xa_mk_value(r[2]), 0);
|
||
|
check_insert_range(mt, r[4], r[5], xa_mk_value(r[4]), -EEXIST);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
/* Store */
|
||
|
check_store_range(mt, r[4], r[5], xa_mk_value(r[4]), 0);
|
||
|
check_store_range(mt, r[6], r[7], xa_mk_value(r[6]), 0);
|
||
|
check_store_range(mt, r[8], r[9], xa_mk_value(r[8]), 0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
MT_BUG_ON(mt, mt_height(mt));
|
||
|
|
||
|
check_seq(mt, 50, false);
|
||
|
mt_set_non_kernel(4);
|
||
|
check_store_range(mt, 5, 47, xa_mk_value(47), 0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* Create tree of 1-100 */
|
||
|
check_seq(mt, 100, false);
|
||
|
/* Store 45-168 */
|
||
|
mt_set_non_kernel(10);
|
||
|
check_store_range(mt, r[10], r[11], xa_mk_value(r[10]), 0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* Create tree of 1-200 */
|
||
|
check_seq(mt, 200, false);
|
||
|
/* Store 45-168 */
|
||
|
check_store_range(mt, r[10], r[11], xa_mk_value(r[10]), 0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
check_seq(mt, 30, false);
|
||
|
check_store_range(mt, 6, 18, xa_mk_value(6), 0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* Overwrite across multiple levels. */
|
||
|
/* Create tree of 1-400 */
|
||
|
check_seq(mt, 400, false);
|
||
|
mt_set_non_kernel(50);
|
||
|
/* Store 118-128 */
|
||
|
check_store_range(mt, r[12], r[13], xa_mk_value(r[12]), 0);
|
||
|
mt_set_non_kernel(50);
|
||
|
mtree_test_erase(mt, 140);
|
||
|
mtree_test_erase(mt, 141);
|
||
|
mtree_test_erase(mt, 142);
|
||
|
mtree_test_erase(mt, 143);
|
||
|
mtree_test_erase(mt, 130);
|
||
|
mtree_test_erase(mt, 131);
|
||
|
mtree_test_erase(mt, 132);
|
||
|
mtree_test_erase(mt, 133);
|
||
|
mtree_test_erase(mt, 134);
|
||
|
mtree_test_erase(mt, 135);
|
||
|
check_load(mt, r[12], xa_mk_value(r[12]));
|
||
|
check_load(mt, r[13], xa_mk_value(r[12]));
|
||
|
check_load(mt, r[13] - 1, xa_mk_value(r[12]));
|
||
|
check_load(mt, r[13] + 1, xa_mk_value(r[13] + 1));
|
||
|
check_load(mt, 135, NULL);
|
||
|
check_load(mt, 140, NULL);
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
|
||
|
/* Overwrite multiple levels at the end of the tree (slot 7) */
|
||
|
mt_set_non_kernel(50);
|
||
|
check_seq(mt, 400, false);
|
||
|
check_store_range(mt, 353, 361, xa_mk_value(353), 0);
|
||
|
check_store_range(mt, 347, 352, xa_mk_value(347), 0);
|
||
|
|
||
|
check_load(mt, 346, xa_mk_value(346));
|
||
|
for (i = 347; i <= 352; i++)
|
||
|
check_load(mt, i, xa_mk_value(347));
|
||
|
for (i = 353; i <= 361; i++)
|
||
|
check_load(mt, i, xa_mk_value(353));
|
||
|
check_load(mt, 362, xa_mk_value(362));
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_set_non_kernel(50);
|
||
|
check_seq(mt, 400, false);
|
||
|
check_store_range(mt, 352, 364, NULL, 0);
|
||
|
check_store_range(mt, 351, 363, xa_mk_value(352), 0);
|
||
|
check_load(mt, 350, xa_mk_value(350));
|
||
|
check_load(mt, 351, xa_mk_value(352));
|
||
|
for (i = 352; i <= 363; i++)
|
||
|
check_load(mt, i, xa_mk_value(352));
|
||
|
check_load(mt, 364, NULL);
|
||
|
check_load(mt, 365, xa_mk_value(365));
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_set_non_kernel(5);
|
||
|
check_seq(mt, 400, false);
|
||
|
check_store_range(mt, 352, 364, NULL, 0);
|
||
|
check_store_range(mt, 351, 364, xa_mk_value(352), 0);
|
||
|
check_load(mt, 350, xa_mk_value(350));
|
||
|
check_load(mt, 351, xa_mk_value(352));
|
||
|
for (i = 352; i <= 364; i++)
|
||
|
check_load(mt, i, xa_mk_value(352));
|
||
|
check_load(mt, 365, xa_mk_value(365));
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
mt_set_non_kernel(50);
|
||
|
check_seq(mt, 400, false);
|
||
|
check_store_range(mt, 362, 367, xa_mk_value(362), 0);
|
||
|
check_store_range(mt, 353, 361, xa_mk_value(353), 0);
|
||
|
mt_set_non_kernel(0);
|
||
|
mt_validate(mt);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
/*
|
||
|
* Interesting cases:
|
||
|
* 1. Overwrite the end of a node and end in the first entry of the next
|
||
|
* node.
|
||
|
* 2. Split a single range
|
||
|
* 3. Overwrite the start of a range
|
||
|
* 4. Overwrite the end of a range
|
||
|
* 5. Overwrite the entire range
|
||
|
* 6. Overwrite a range that causes multiple parent nodes to be
|
||
|
* combined
|
||
|
* 7. Overwrite a range that causes multiple parent nodes and part of
|
||
|
* root to be combined
|
||
|
* 8. Overwrite the whole tree
|
||
|
* 9. Try to overwrite the zero entry of an alloc tree.
|
||
|
* 10. Write a range larger than a nodes current pivot
|
||
|
*/
|
||
|
|
||
|
mt_set_non_kernel(50);
|
||
|
for (i = 0; i <= 500; i++) {
|
||
|
val = i*5;
|
||
|
val2 = (i+1)*5;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
}
|
||
|
check_store_range(mt, 2400, 2400, xa_mk_value(2400), 0);
|
||
|
check_store_range(mt, 2411, 2411, xa_mk_value(2411), 0);
|
||
|
check_store_range(mt, 2412, 2412, xa_mk_value(2412), 0);
|
||
|
check_store_range(mt, 2396, 2400, xa_mk_value(4052020), 0);
|
||
|
check_store_range(mt, 2402, 2402, xa_mk_value(2402), 0);
|
||
|
mtree_destroy(mt);
|
||
|
mt_set_non_kernel(0);
|
||
|
|
||
|
mt_set_non_kernel(50);
|
||
|
for (i = 0; i <= 500; i++) {
|
||
|
val = i*5;
|
||
|
val2 = (i+1)*5;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
}
|
||
|
check_store_range(mt, 2422, 2422, xa_mk_value(2422), 0);
|
||
|
check_store_range(mt, 2424, 2424, xa_mk_value(2424), 0);
|
||
|
check_store_range(mt, 2425, 2425, xa_mk_value(2), 0);
|
||
|
check_store_range(mt, 2460, 2470, NULL, 0);
|
||
|
check_store_range(mt, 2435, 2460, xa_mk_value(2435), 0);
|
||
|
check_store_range(mt, 2461, 2470, xa_mk_value(2461), 0);
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* Test rebalance gaps */
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
mt_set_non_kernel(50);
|
||
|
for (i = 0; i <= 50; i++) {
|
||
|
val = i*10;
|
||
|
val2 = (i+1)*10;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
}
|
||
|
check_store_range(mt, 161, 161, xa_mk_value(161), 0);
|
||
|
check_store_range(mt, 162, 162, xa_mk_value(162), 0);
|
||
|
check_store_range(mt, 163, 163, xa_mk_value(163), 0);
|
||
|
check_store_range(mt, 240, 249, NULL, 0);
|
||
|
mtree_erase(mt, 200);
|
||
|
mtree_erase(mt, 210);
|
||
|
mtree_erase(mt, 220);
|
||
|
mtree_erase(mt, 230);
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
for (i = 0; i <= 500; i++) {
|
||
|
val = i*10;
|
||
|
val2 = (i+1)*10;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
}
|
||
|
check_store_range(mt, 4600, 4959, xa_mk_value(1), 0);
|
||
|
mt_validate(mt);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
for (i = 0; i <= 500; i++) {
|
||
|
val = i*10;
|
||
|
val2 = (i+1)*10;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
}
|
||
|
check_store_range(mt, 4811, 4811, xa_mk_value(4811), 0);
|
||
|
check_store_range(mt, 4812, 4812, xa_mk_value(4812), 0);
|
||
|
check_store_range(mt, 4861, 4861, xa_mk_value(4861), 0);
|
||
|
check_store_range(mt, 4862, 4862, xa_mk_value(4862), 0);
|
||
|
check_store_range(mt, 4842, 4849, NULL, 0);
|
||
|
mt_validate(mt);
|
||
|
MT_BUG_ON(mt, !mt_height(mt));
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
for (i = 0; i <= 1300; i++) {
|
||
|
val = i*10;
|
||
|
val2 = (i+1)*10;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
MT_BUG_ON(mt, mt_height(mt) >= 4);
|
||
|
}
|
||
|
/* Cause a 3 child split all the way up the tree. */
|
||
|
for (i = 5; i < 215; i += 10)
|
||
|
check_store_range(mt, 11450 + i, 11450 + i + 1, NULL, 0);
|
||
|
for (i = 5; i < 65; i += 10)
|
||
|
check_store_range(mt, 11770 + i, 11770 + i + 1, NULL, 0);
|
||
|
|
||
|
MT_BUG_ON(mt, mt_height(mt) >= 4);
|
||
|
for (i = 5; i < 45; i += 10)
|
||
|
check_store_range(mt, 11700 + i, 11700 + i + 1, NULL, 0);
|
||
|
if (!MAPLE_32BIT)
|
||
|
MT_BUG_ON(mt, mt_height(mt) < 4);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
for (i = 0; i <= 1200; i++) {
|
||
|
val = i*10;
|
||
|
val2 = (i+1)*10;
|
||
|
check_store_range(mt, val, val2, xa_mk_value(val), 0);
|
||
|
MT_BUG_ON(mt, mt_height(mt) >= 4);
|
||
|
}
|
||
|
/* Fill parents and leaves before split. */
|
||
|
for (i = 5; i < 455; i += 10)
|
||
|
check_store_range(mt, 7800 + i, 7800 + i + 1, NULL, 0);
|
||
|
|
||
|
for (i = 1; i < 16; i++)
|
||
|
check_store_range(mt, 8185 + i, 8185 + i + 1,
|
||
|
xa_mk_value(8185+i), 0);
|
||
|
MT_BUG_ON(mt, mt_height(mt) >= 4);
|
||
|
/* triple split across multiple levels. */
|
||
|
check_store_range(mt, 8184, 8184, xa_mk_value(8184), 0);
|
||
|
if (!MAPLE_32BIT)
|
||
|
MT_BUG_ON(mt, mt_height(mt) != 4);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_next_entry(struct maple_tree *mt)
|
||
|
{
|
||
|
void *entry = NULL;
|
||
|
unsigned long limit = 30, i = 0;
|
||
|
MA_STATE(mas, mt, i, i);
|
||
|
|
||
|
MT_BUG_ON(mt, !mtree_empty(mt));
|
||
|
|
||
|
check_seq(mt, limit, false);
|
||
|
rcu_read_lock();
|
||
|
|
||
|
/* Check the first one and get ma_state in the correct state. */
|
||
|
MT_BUG_ON(mt, mas_walk(&mas) != xa_mk_value(i++));
|
||
|
for ( ; i <= limit + 1; i++) {
|
||
|
entry = mas_next(&mas, limit);
|
||
|
if (i > limit)
|
||
|
MT_BUG_ON(mt, entry != NULL);
|
||
|
else
|
||
|
MT_BUG_ON(mt, xa_mk_value(i) != entry);
|
||
|
}
|
||
|
rcu_read_unlock();
|
||
|
mtree_destroy(mt);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_prev_entry(struct maple_tree *mt)
|
||
|
{
|
||
|
unsigned long index = 16;
|
||
|
void *value;
|
||
|
int i;
|
||
|
|
||
|
MA_STATE(mas, mt, index, index);
|
||
|
|
||
|
MT_BUG_ON(mt, !mtree_empty(mt));
|
||
|
check_seq(mt, 30, false);
|
||
|
|
||
|
rcu_read_lock();
|
||
|
value = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, value != xa_mk_value(index));
|
||
|
value = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, value != xa_mk_value(index - 1));
|
||
|
rcu_read_unlock();
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* Check limits on prev */
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
mas_lock(&mas);
|
||
|
for (i = 0; i <= index; i++) {
|
||
|
mas_set_range(&mas, i*10, i*10+5);
|
||
|
mas_store_gfp(&mas, xa_mk_value(i), GFP_KERNEL);
|
||
|
}
|
||
|
|
||
|
mas_set(&mas, 20);
|
||
|
value = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, value != xa_mk_value(2));
|
||
|
|
||
|
value = mas_prev(&mas, 19);
|
||
|
MT_BUG_ON(mt, value != NULL);
|
||
|
|
||
|
mas_set(&mas, 80);
|
||
|
value = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, value != xa_mk_value(8));
|
||
|
|
||
|
value = mas_prev(&mas, 76);
|
||
|
MT_BUG_ON(mt, value != NULL);
|
||
|
|
||
|
mas_unlock(&mas);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_root_expand(struct maple_tree *mt)
|
||
|
{
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
void *ptr;
|
||
|
|
||
|
|
||
|
mas_lock(&mas);
|
||
|
mas_set(&mas, 3);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != ULONG_MAX);
|
||
|
|
||
|
ptr = &check_prev_entry;
|
||
|
mas_set(&mas, 1);
|
||
|
mas_store_gfp(&mas, ptr, GFP_KERNEL);
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
|
||
|
mas_set(&mas, 1);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != &check_prev_entry);
|
||
|
|
||
|
mas_set(&mas, 2);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
mas_unlock(&mas);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
mt_init_flags(mt, 0);
|
||
|
mas_lock(&mas);
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
ptr = &check_prev_entry;
|
||
|
mas_store_gfp(&mas, ptr, GFP_KERNEL);
|
||
|
|
||
|
mas_set(&mas, 5);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
MT_BUG_ON(mt, mas.index != 1);
|
||
|
MT_BUG_ON(mt, mas.last != ULONG_MAX);
|
||
|
|
||
|
mas_set_range(&mas, 0, 100);
|
||
|
ptr = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, ptr != &check_prev_entry);
|
||
|
MT_BUG_ON(mt, mas.last != 0);
|
||
|
mas_unlock(&mas);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, 0);
|
||
|
mas_lock(&mas);
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
ptr = (void *)((unsigned long) check_prev_entry | 1UL);
|
||
|
mas_store_gfp(&mas, ptr, GFP_KERNEL);
|
||
|
ptr = mas_next(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
MT_BUG_ON(mt, (mas.index != 1) && (mas.last != ULONG_MAX));
|
||
|
|
||
|
mas_set(&mas, 1);
|
||
|
ptr = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, (mas.index != 0) && (mas.last != 0));
|
||
|
MT_BUG_ON(mt, ptr != (void *)((unsigned long) check_prev_entry | 1UL));
|
||
|
|
||
|
mas_unlock(&mas);
|
||
|
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, 0);
|
||
|
mas_lock(&mas);
|
||
|
mas_set(&mas, 0);
|
||
|
ptr = (void *)((unsigned long) check_prev_entry | 2UL);
|
||
|
mas_store_gfp(&mas, ptr, GFP_KERNEL);
|
||
|
ptr = mas_next(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, ptr != NULL);
|
||
|
MT_BUG_ON(mt, (mas.index != 1) && (mas.last != ULONG_MAX));
|
||
|
|
||
|
mas_set(&mas, 1);
|
||
|
ptr = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, (mas.index != 0) && (mas.last != 0));
|
||
|
MT_BUG_ON(mt, ptr != (void *)((unsigned long) check_prev_entry | 2UL));
|
||
|
|
||
|
|
||
|
mas_unlock(&mas);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_gap_combining(struct maple_tree *mt)
|
||
|
{
|
||
|
struct maple_enode *mn1, *mn2;
|
||
|
void *entry;
|
||
|
unsigned long singletons = 100;
|
||
|
static const unsigned long *seq100;
|
||
|
static const unsigned long seq100_64[] = {
|
||
|
/* 0-5 */
|
||
|
74, 75, 76,
|
||
|
50, 100, 2,
|
||
|
|
||
|
/* 6-12 */
|
||
|
44, 45, 46, 43,
|
||
|
20, 50, 3,
|
||
|
|
||
|
/* 13-20*/
|
||
|
80, 81, 82,
|
||
|
76, 2, 79, 85, 4,
|
||
|
};
|
||
|
|
||
|
static const unsigned long seq100_32[] = {
|
||
|
/* 0-5 */
|
||
|
61, 62, 63,
|
||
|
50, 100, 2,
|
||
|
|
||
|
/* 6-12 */
|
||
|
31, 32, 33, 30,
|
||
|
20, 50, 3,
|
||
|
|
||
|
/* 13-20*/
|
||
|
80, 81, 82,
|
||
|
76, 2, 79, 85, 4,
|
||
|
};
|
||
|
|
||
|
static const unsigned long seq2000[] = {
|
||
|
1152, 1151,
|
||
|
1100, 1200, 2,
|
||
|
};
|
||
|
static const unsigned long seq400[] = {
|
||
|
286, 318,
|
||
|
256, 260, 266, 270, 275, 280, 290, 398,
|
||
|
286, 310,
|
||
|
};
|
||
|
|
||
|
unsigned long index;
|
||
|
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
if (MAPLE_32BIT)
|
||
|
seq100 = seq100_32;
|
||
|
else
|
||
|
seq100 = seq100_64;
|
||
|
|
||
|
index = seq100[0];
|
||
|
mas_set(&mas, index);
|
||
|
MT_BUG_ON(mt, !mtree_empty(mt));
|
||
|
check_seq(mt, singletons, false); /* create 100 singletons. */
|
||
|
|
||
|
mt_set_non_kernel(1);
|
||
|
mtree_test_erase(mt, seq100[2]);
|
||
|
check_load(mt, seq100[2], NULL);
|
||
|
mtree_test_erase(mt, seq100[1]);
|
||
|
check_load(mt, seq100[1], NULL);
|
||
|
|
||
|
rcu_read_lock();
|
||
|
entry = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(index));
|
||
|
mn1 = mas.node;
|
||
|
mas_next(&mas, ULONG_MAX);
|
||
|
entry = mas_next(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(index + 4));
|
||
|
mn2 = mas.node;
|
||
|
MT_BUG_ON(mt, mn1 == mn2); /* test the test. */
|
||
|
|
||
|
/*
|
||
|
* At this point, there is a gap of 2 at index + 1 between seq100[3] and
|
||
|
* seq100[4]. Search for the gap.
|
||
|
*/
|
||
|
mt_set_non_kernel(1);
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, seq100[3], seq100[4],
|
||
|
seq100[5]));
|
||
|
MT_BUG_ON(mt, mas.index != index + 1);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
mtree_test_erase(mt, seq100[6]);
|
||
|
check_load(mt, seq100[6], NULL);
|
||
|
mtree_test_erase(mt, seq100[7]);
|
||
|
check_load(mt, seq100[7], NULL);
|
||
|
mtree_test_erase(mt, seq100[8]);
|
||
|
index = seq100[9];
|
||
|
|
||
|
rcu_read_lock();
|
||
|
mas.index = index;
|
||
|
mas.last = index;
|
||
|
mas_reset(&mas);
|
||
|
entry = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(index));
|
||
|
mn1 = mas.node;
|
||
|
entry = mas_next(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(index + 4));
|
||
|
mas_next(&mas, ULONG_MAX); /* go to the next entry. */
|
||
|
mn2 = mas.node;
|
||
|
MT_BUG_ON(mt, mn1 == mn2); /* test the next entry is in the next node. */
|
||
|
|
||
|
/*
|
||
|
* At this point, there is a gap of 3 at seq100[6]. Find it by
|
||
|
* searching 20 - 50 for size 3.
|
||
|
*/
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, seq100[10], seq100[11],
|
||
|
seq100[12]));
|
||
|
MT_BUG_ON(mt, mas.index != seq100[6]);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
mt_set_non_kernel(1);
|
||
|
mtree_store(mt, seq100[13], NULL, GFP_KERNEL);
|
||
|
check_load(mt, seq100[13], NULL);
|
||
|
check_load(mt, seq100[14], xa_mk_value(seq100[14]));
|
||
|
mtree_store(mt, seq100[14], NULL, GFP_KERNEL);
|
||
|
check_load(mt, seq100[13], NULL);
|
||
|
check_load(mt, seq100[14], NULL);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, seq100[16], seq100[15],
|
||
|
seq100[17]));
|
||
|
MT_BUG_ON(mt, mas.index != seq100[13]);
|
||
|
mt_validate(mt);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
/*
|
||
|
* *DEPRECATED: no retries anymore* Test retry entry in the start of a
|
||
|
* gap.
|
||
|
*/
|
||
|
mt_set_non_kernel(2);
|
||
|
mtree_test_store_range(mt, seq100[18], seq100[14], NULL);
|
||
|
mtree_test_erase(mt, seq100[15]);
|
||
|
mas_reset(&mas);
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, seq100[16], seq100[19],
|
||
|
seq100[20]));
|
||
|
rcu_read_unlock();
|
||
|
MT_BUG_ON(mt, mas.index != seq100[18]);
|
||
|
mt_validate(mt);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* seq 2000 tests are for multi-level tree gaps */
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_seq(mt, 2000, false);
|
||
|
mt_set_non_kernel(1);
|
||
|
mtree_test_erase(mt, seq2000[0]);
|
||
|
mtree_test_erase(mt, seq2000[1]);
|
||
|
|
||
|
mt_set_non_kernel(2);
|
||
|
mas_reset(&mas);
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, seq2000[2], seq2000[3],
|
||
|
seq2000[4]));
|
||
|
MT_BUG_ON(mt, mas.index != seq2000[1]);
|
||
|
rcu_read_unlock();
|
||
|
mt_validate(mt);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/* seq 400 tests rebalancing over two levels. */
|
||
|
mt_set_non_kernel(99);
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_seq(mt, 400, false);
|
||
|
mtree_test_store_range(mt, seq400[0], seq400[1], NULL);
|
||
|
mt_set_non_kernel(0);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_seq(mt, 400, false);
|
||
|
mt_set_non_kernel(50);
|
||
|
mtree_test_store_range(mt, seq400[2], seq400[9],
|
||
|
xa_mk_value(seq400[2]));
|
||
|
mtree_test_store_range(mt, seq400[3], seq400[9],
|
||
|
xa_mk_value(seq400[3]));
|
||
|
mtree_test_store_range(mt, seq400[4], seq400[9],
|
||
|
xa_mk_value(seq400[4]));
|
||
|
mtree_test_store_range(mt, seq400[5], seq400[9],
|
||
|
xa_mk_value(seq400[5]));
|
||
|
mtree_test_store_range(mt, seq400[0], seq400[9],
|
||
|
xa_mk_value(seq400[0]));
|
||
|
mtree_test_store_range(mt, seq400[6], seq400[9],
|
||
|
xa_mk_value(seq400[6]));
|
||
|
mtree_test_store_range(mt, seq400[7], seq400[9],
|
||
|
xa_mk_value(seq400[7]));
|
||
|
mtree_test_store_range(mt, seq400[8], seq400[9],
|
||
|
xa_mk_value(seq400[8]));
|
||
|
mtree_test_store_range(mt, seq400[10], seq400[11],
|
||
|
xa_mk_value(seq400[10]));
|
||
|
mt_validate(mt);
|
||
|
mt_set_non_kernel(0);
|
||
|
mtree_destroy(mt);
|
||
|
}
|
||
|
static noinline void __init check_node_overwrite(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, max = 4000;
|
||
|
|
||
|
for (i = 0; i < max; i++)
|
||
|
mtree_test_store_range(mt, i*100, i*100 + 50, xa_mk_value(i*100));
|
||
|
|
||
|
mtree_test_store_range(mt, 319951, 367950, NULL);
|
||
|
/*mt_dump(mt); */
|
||
|
mt_validate(mt);
|
||
|
}
|
||
|
|
||
|
#if defined(BENCH_SLOT_STORE)
|
||
|
static noinline void __init bench_slot_store(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, brk = 105, max = 1040, brk_start = 100, count = 20000000;
|
||
|
|
||
|
for (i = 0; i < max; i += 10)
|
||
|
mtree_store_range(mt, i, i + 5, xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < count; i++) {
|
||
|
mtree_store_range(mt, brk, brk, NULL, GFP_KERNEL);
|
||
|
mtree_store_range(mt, brk_start, brk, xa_mk_value(brk),
|
||
|
GFP_KERNEL);
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#if defined(BENCH_NODE_STORE)
|
||
|
static noinline void __init bench_node_store(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, overwrite = 76, max = 240, count = 20000000;
|
||
|
|
||
|
for (i = 0; i < max; i += 10)
|
||
|
mtree_store_range(mt, i, i + 5, xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < count; i++) {
|
||
|
mtree_store_range(mt, overwrite, overwrite + 15,
|
||
|
xa_mk_value(overwrite), GFP_KERNEL);
|
||
|
|
||
|
overwrite += 5;
|
||
|
if (overwrite >= 135)
|
||
|
overwrite = 76;
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#if defined(BENCH_AWALK)
|
||
|
static noinline void __init bench_awalk(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, max = 2500, count = 50000000;
|
||
|
MA_STATE(mas, mt, 1470, 1470);
|
||
|
|
||
|
for (i = 0; i < max; i += 10)
|
||
|
mtree_store_range(mt, i, i + 5, xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mtree_store_range(mt, 1470, 1475, NULL, GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < count; i++) {
|
||
|
mas_empty_area_rev(&mas, 0, 2000, 10);
|
||
|
mas_reset(&mas);
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
#if defined(BENCH_WALK)
|
||
|
static noinline void __init bench_walk(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, max = 2500, count = 550000000;
|
||
|
MA_STATE(mas, mt, 1470, 1470);
|
||
|
|
||
|
for (i = 0; i < max; i += 10)
|
||
|
mtree_store_range(mt, i, i + 5, xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < count; i++) {
|
||
|
mas_walk(&mas);
|
||
|
mas_reset(&mas);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
#if defined(BENCH_MT_FOR_EACH)
|
||
|
static noinline void __init bench_mt_for_each(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, count = 1000000;
|
||
|
unsigned long max = 2500, index = 0;
|
||
|
void *entry;
|
||
|
|
||
|
for (i = 0; i < max; i += 5)
|
||
|
mtree_store_range(mt, i, i + 4, xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < count; i++) {
|
||
|
unsigned long j = 0;
|
||
|
|
||
|
mt_for_each(mt, entry, index, max) {
|
||
|
MT_BUG_ON(mt, entry != xa_mk_value(j));
|
||
|
j += 5;
|
||
|
}
|
||
|
|
||
|
index = 0;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
/* check_forking - simulate the kernel forking sequence with the tree. */
|
||
|
static noinline void __init check_forking(struct maple_tree *mt)
|
||
|
{
|
||
|
|
||
|
struct maple_tree newmt;
|
||
|
int i, nr_entries = 134;
|
||
|
void *val;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
MA_STATE(newmas, mt, 0, 0);
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 5,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mt_set_non_kernel(99999);
|
||
|
mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE);
|
||
|
newmas.tree = &newmt;
|
||
|
mas_reset(&newmas);
|
||
|
mas_reset(&mas);
|
||
|
mas_lock(&newmas);
|
||
|
mas.index = 0;
|
||
|
mas.last = 0;
|
||
|
if (mas_expected_entries(&newmas, nr_entries)) {
|
||
|
pr_err("OOM!");
|
||
|
BUG_ON(1);
|
||
|
}
|
||
|
rcu_read_lock();
|
||
|
mas_for_each(&mas, val, ULONG_MAX) {
|
||
|
newmas.index = mas.index;
|
||
|
newmas.last = mas.last;
|
||
|
mas_store(&newmas, val);
|
||
|
}
|
||
|
rcu_read_unlock();
|
||
|
mas_destroy(&newmas);
|
||
|
mas_unlock(&newmas);
|
||
|
mt_validate(&newmt);
|
||
|
mt_set_non_kernel(0);
|
||
|
mtree_destroy(&newmt);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_iteration(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, nr_entries = 125;
|
||
|
void *val;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i * 10, i * 10 + 9,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mt_set_non_kernel(99999);
|
||
|
|
||
|
i = 0;
|
||
|
mas_lock(&mas);
|
||
|
mas_for_each(&mas, val, 925) {
|
||
|
MT_BUG_ON(mt, mas.index != i * 10);
|
||
|
MT_BUG_ON(mt, mas.last != i * 10 + 9);
|
||
|
/* Overwrite end of entry 92 */
|
||
|
if (i == 92) {
|
||
|
mas.index = 925;
|
||
|
mas.last = 929;
|
||
|
mas_store(&mas, val);
|
||
|
}
|
||
|
i++;
|
||
|
}
|
||
|
/* Ensure mas_find() gets the next value */
|
||
|
val = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(i));
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
i = 0;
|
||
|
mas_for_each(&mas, val, 785) {
|
||
|
MT_BUG_ON(mt, mas.index != i * 10);
|
||
|
MT_BUG_ON(mt, mas.last != i * 10 + 9);
|
||
|
/* Overwrite start of entry 78 */
|
||
|
if (i == 78) {
|
||
|
mas.index = 780;
|
||
|
mas.last = 785;
|
||
|
mas_store(&mas, val);
|
||
|
} else {
|
||
|
i++;
|
||
|
}
|
||
|
}
|
||
|
val = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(i));
|
||
|
|
||
|
mas_set(&mas, 0);
|
||
|
i = 0;
|
||
|
mas_for_each(&mas, val, 765) {
|
||
|
MT_BUG_ON(mt, mas.index != i * 10);
|
||
|
MT_BUG_ON(mt, mas.last != i * 10 + 9);
|
||
|
/* Overwrite end of entry 76 and advance to the end */
|
||
|
if (i == 76) {
|
||
|
mas.index = 760;
|
||
|
mas.last = 765;
|
||
|
mas_store(&mas, val);
|
||
|
mas_next(&mas, ULONG_MAX);
|
||
|
}
|
||
|
i++;
|
||
|
}
|
||
|
/* Make sure the next find returns the one after 765, 766-769 */
|
||
|
val = mas_find(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(76));
|
||
|
mas_unlock(&mas);
|
||
|
mas_destroy(&mas);
|
||
|
mt_set_non_kernel(0);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_mas_store_gfp(struct maple_tree *mt)
|
||
|
{
|
||
|
|
||
|
struct maple_tree newmt;
|
||
|
int i, nr_entries = 135;
|
||
|
void *val;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
MA_STATE(newmas, mt, 0, 0);
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 5,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mt_set_non_kernel(99999);
|
||
|
mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE);
|
||
|
newmas.tree = &newmt;
|
||
|
rcu_read_lock();
|
||
|
mas_lock(&newmas);
|
||
|
mas_reset(&newmas);
|
||
|
mas_set(&mas, 0);
|
||
|
mas_for_each(&mas, val, ULONG_MAX) {
|
||
|
newmas.index = mas.index;
|
||
|
newmas.last = mas.last;
|
||
|
mas_store_gfp(&newmas, val, GFP_KERNEL);
|
||
|
}
|
||
|
mas_unlock(&newmas);
|
||
|
rcu_read_unlock();
|
||
|
mt_validate(&newmt);
|
||
|
mt_set_non_kernel(0);
|
||
|
mtree_destroy(&newmt);
|
||
|
}
|
||
|
|
||
|
#if defined(BENCH_FORK)
|
||
|
static noinline void __init bench_forking(struct maple_tree *mt)
|
||
|
{
|
||
|
|
||
|
struct maple_tree newmt;
|
||
|
int i, nr_entries = 134, nr_fork = 80000;
|
||
|
void *val;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
MA_STATE(newmas, mt, 0, 0);
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 5,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
for (i = 0; i < nr_fork; i++) {
|
||
|
mt_set_non_kernel(99999);
|
||
|
mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE);
|
||
|
newmas.tree = &newmt;
|
||
|
mas_reset(&newmas);
|
||
|
mas_reset(&mas);
|
||
|
mas.index = 0;
|
||
|
mas.last = 0;
|
||
|
rcu_read_lock();
|
||
|
mas_lock(&newmas);
|
||
|
if (mas_expected_entries(&newmas, nr_entries)) {
|
||
|
printk("OOM!");
|
||
|
BUG_ON(1);
|
||
|
}
|
||
|
mas_for_each(&mas, val, ULONG_MAX) {
|
||
|
newmas.index = mas.index;
|
||
|
newmas.last = mas.last;
|
||
|
mas_store(&newmas, val);
|
||
|
}
|
||
|
mas_destroy(&newmas);
|
||
|
mas_unlock(&newmas);
|
||
|
rcu_read_unlock();
|
||
|
mt_validate(&newmt);
|
||
|
mt_set_non_kernel(0);
|
||
|
mtree_destroy(&newmt);
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
static noinline void __init next_prev_test(struct maple_tree *mt)
|
||
|
{
|
||
|
int i, nr_entries;
|
||
|
void *val;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
struct maple_enode *mn;
|
||
|
static const unsigned long *level2;
|
||
|
static const unsigned long level2_64[] = { 707, 1000, 710, 715, 720,
|
||
|
725};
|
||
|
static const unsigned long level2_32[] = { 1747, 2000, 1750, 1755,
|
||
|
1760, 1765};
|
||
|
unsigned long last_index;
|
||
|
|
||
|
if (MAPLE_32BIT) {
|
||
|
nr_entries = 500;
|
||
|
level2 = level2_32;
|
||
|
last_index = 0x138e;
|
||
|
} else {
|
||
|
nr_entries = 200;
|
||
|
level2 = level2_64;
|
||
|
last_index = 0x7d6;
|
||
|
}
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 5,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mas_lock(&mas);
|
||
|
for (i = 0; i <= nr_entries / 2; i++) {
|
||
|
mas_next(&mas, 1000);
|
||
|
if (mas_is_none(&mas))
|
||
|
break;
|
||
|
|
||
|
}
|
||
|
mas_reset(&mas);
|
||
|
mas_set(&mas, 0);
|
||
|
i = 0;
|
||
|
mas_for_each(&mas, val, 1000) {
|
||
|
i++;
|
||
|
}
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
mas_set(&mas, 0);
|
||
|
i = 0;
|
||
|
mas_for_each(&mas, val, 1000) {
|
||
|
mas_pause(&mas);
|
||
|
i++;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* 680 - 685 = 0x61a00001930c
|
||
|
* 686 - 689 = NULL;
|
||
|
* 690 - 695 = 0x61a00001930c
|
||
|
* Check simple next/prev
|
||
|
*/
|
||
|
mas_set(&mas, 686);
|
||
|
val = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
|
||
|
val = mas_next(&mas, 1000);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(690 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 690);
|
||
|
MT_BUG_ON(mt, mas.last != 695);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(680 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 680);
|
||
|
MT_BUG_ON(mt, mas.last != 685);
|
||
|
|
||
|
val = mas_next(&mas, 1000);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(690 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 690);
|
||
|
MT_BUG_ON(mt, mas.last != 695);
|
||
|
|
||
|
val = mas_next(&mas, 1000);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(700 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 700);
|
||
|
MT_BUG_ON(mt, mas.last != 705);
|
||
|
|
||
|
/* Check across node boundaries of the tree */
|
||
|
mas_set(&mas, 70);
|
||
|
val = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(70 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 70);
|
||
|
MT_BUG_ON(mt, mas.last != 75);
|
||
|
|
||
|
val = mas_next(&mas, 1000);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(80 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 80);
|
||
|
MT_BUG_ON(mt, mas.last != 85);
|
||
|
|
||
|
val = mas_prev(&mas, 70);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(70 / 10));
|
||
|
MT_BUG_ON(mt, mas.index != 70);
|
||
|
MT_BUG_ON(mt, mas.last != 75);
|
||
|
|
||
|
/* Check across two levels of the tree */
|
||
|
mas_reset(&mas);
|
||
|
mas_set(&mas, level2[0]);
|
||
|
val = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
val = mas_next(&mas, level2[1]);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(level2[2] / 10));
|
||
|
MT_BUG_ON(mt, mas.index != level2[2]);
|
||
|
MT_BUG_ON(mt, mas.last != level2[3]);
|
||
|
mn = mas.node;
|
||
|
|
||
|
val = mas_next(&mas, level2[1]);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(level2[4] / 10));
|
||
|
MT_BUG_ON(mt, mas.index != level2[4]);
|
||
|
MT_BUG_ON(mt, mas.last != level2[5]);
|
||
|
MT_BUG_ON(mt, mn == mas.node);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(level2[2] / 10));
|
||
|
MT_BUG_ON(mt, mas.index != level2[2]);
|
||
|
MT_BUG_ON(mt, mas.last != level2[3]);
|
||
|
|
||
|
/* Check running off the end and back on */
|
||
|
mas_set(&mas, nr_entries * 10);
|
||
|
val = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(nr_entries));
|
||
|
MT_BUG_ON(mt, mas.index != (nr_entries * 10));
|
||
|
MT_BUG_ON(mt, mas.last != (nr_entries * 10 + 5));
|
||
|
|
||
|
val = mas_next(&mas, ULONG_MAX);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
MT_BUG_ON(mt, mas.index != last_index);
|
||
|
MT_BUG_ON(mt, mas.last != ULONG_MAX);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(nr_entries));
|
||
|
MT_BUG_ON(mt, mas.index != (nr_entries * 10));
|
||
|
MT_BUG_ON(mt, mas.last != (nr_entries * 10 + 5));
|
||
|
|
||
|
/* Check running off the start and back on */
|
||
|
mas_reset(&mas);
|
||
|
mas_set(&mas, 10);
|
||
|
val = mas_walk(&mas);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(1));
|
||
|
MT_BUG_ON(mt, mas.index != 10);
|
||
|
MT_BUG_ON(mt, mas.last != 15);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != xa_mk_value(0));
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != 5);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != 0);
|
||
|
|
||
|
mas.index = 0;
|
||
|
mas.last = 5;
|
||
|
mas_store(&mas, NULL);
|
||
|
mas_reset(&mas);
|
||
|
mas_set(&mas, 10);
|
||
|
mas_walk(&mas);
|
||
|
|
||
|
val = mas_prev(&mas, 0);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != 0);
|
||
|
mas_unlock(&mas);
|
||
|
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
mt_init(mt);
|
||
|
mtree_store_range(mt, 0, 0, xa_mk_value(0), GFP_KERNEL);
|
||
|
mtree_store_range(mt, 5, 5, xa_mk_value(5), GFP_KERNEL);
|
||
|
rcu_read_lock();
|
||
|
mas_set(&mas, 5);
|
||
|
val = mas_prev(&mas, 4);
|
||
|
MT_BUG_ON(mt, val != NULL);
|
||
|
rcu_read_unlock();
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
/* Test spanning writes that require balancing right sibling or right cousin */
|
||
|
static noinline void __init check_spanning_relatives(struct maple_tree *mt)
|
||
|
{
|
||
|
|
||
|
unsigned long i, nr_entries = 1000;
|
||
|
|
||
|
for (i = 0; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 5,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
|
||
|
mtree_store_range(mt, 9365, 9955, NULL, GFP_KERNEL);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_fuzzer(struct maple_tree *mt)
|
||
|
{
|
||
|
/*
|
||
|
* 1. Causes a spanning rebalance of a single root node.
|
||
|
* Fixed by setting the correct limit in mast_cp_to_nodes() when the
|
||
|
* entire right side is consumed.
|
||
|
*/
|
||
|
mtree_test_insert(mt, 88, (void *)0xb1);
|
||
|
mtree_test_insert(mt, 84, (void *)0xa9);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_insert(mt, 14, (void *)0x1d);
|
||
|
mtree_test_insert(mt, 7, (void *)0xf);
|
||
|
mtree_test_insert(mt, 12, (void *)0x19);
|
||
|
mtree_test_insert(mt, 18, (void *)0x25);
|
||
|
mtree_test_store_range(mt, 8, 18, (void *)0x11);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
/*
|
||
|
* 2. Cause a spanning rebalance of two nodes in root.
|
||
|
* Fixed by setting mast->r->max correctly.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_store(mt, 87, (void *)0xaf);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_load(mt, 4);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_store(mt, 8, (void *)0x11);
|
||
|
mtree_test_store(mt, 44, (void *)0x59);
|
||
|
mtree_test_store(mt, 68, (void *)0x89);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 43, (void *)0x57);
|
||
|
mtree_test_insert(mt, 24, (void *)0x31);
|
||
|
mtree_test_insert(mt, 844, (void *)0x699);
|
||
|
mtree_test_store(mt, 84, (void *)0xa9);
|
||
|
mtree_test_store(mt, 4, (void *)0x9);
|
||
|
mtree_test_erase(mt, 4);
|
||
|
mtree_test_load(mt, 5);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 3. Cause a node overflow on copy
|
||
|
* Fixed by using the correct check for node size in mas_wr_modify()
|
||
|
* Also discovered issue with metadata setting.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_store_range(mt, 0, ULONG_MAX, (void *)0x1);
|
||
|
mtree_test_store(mt, 4, (void *)0x9);
|
||
|
mtree_test_erase(mt, 5);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_test_erase(mt, 4);
|
||
|
mtree_test_store(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 5);
|
||
|
mtree_test_store(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 5);
|
||
|
mtree_test_erase(mt, 4);
|
||
|
mtree_test_store(mt, 4, (void *)0x9);
|
||
|
mtree_test_store(mt, 444, (void *)0x379);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_store(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 4. spanning store failure due to writing incorrect pivot value at
|
||
|
* last slot.
|
||
|
* Fixed by setting mast->r->max correctly in mast_cp_to_nodes()
|
||
|
*
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_insert(mt, 261, (void *)0x20b);
|
||
|
mtree_test_store(mt, 516, (void *)0x409);
|
||
|
mtree_test_store(mt, 6, (void *)0xd);
|
||
|
mtree_test_insert(mt, 5, (void *)0xb);
|
||
|
mtree_test_insert(mt, 1256, (void *)0x9d1);
|
||
|
mtree_test_store(mt, 4, (void *)0x9);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_store(mt, 56, (void *)0x71);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_store(mt, 24, (void *)0x31);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 2263, (void *)0x11af);
|
||
|
mtree_test_insert(mt, 446, (void *)0x37d);
|
||
|
mtree_test_store_range(mt, 6, 45, (void *)0xd);
|
||
|
mtree_test_store_range(mt, 3, 446, (void *)0x7);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 5. mas_wr_extend_null() may overflow slots.
|
||
|
* Fix by checking against wr_mas->node_end.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_store(mt, 48, (void *)0x61);
|
||
|
mtree_test_store(mt, 3, (void *)0x7);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_store(mt, 88, (void *)0xb1);
|
||
|
mtree_test_store(mt, 81, (void *)0xa3);
|
||
|
mtree_test_insert(mt, 0, (void *)0x1);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_insert(mt, 2480, (void *)0x1361);
|
||
|
mtree_test_insert(mt, ULONG_MAX,
|
||
|
(void *)0xffffffffffffffff);
|
||
|
mtree_test_erase(mt, ULONG_MAX);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 6. When reusing a node with an implied pivot and the node is
|
||
|
* shrinking, old data would be left in the implied slot
|
||
|
* Fixed by checking the last pivot for the mas->max and clear
|
||
|
* accordingly. This only affected the left-most node as that node is
|
||
|
* the only one allowed to end in NULL.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_erase(mt, 3);
|
||
|
mtree_test_insert(mt, 22, (void *)0x2d);
|
||
|
mtree_test_insert(mt, 15, (void *)0x1f);
|
||
|
mtree_test_load(mt, 2);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 3);
|
||
|
mtree_test_insert(mt, 22, (void *)0x2d);
|
||
|
mtree_test_insert(mt, 15, (void *)0x1f);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_load(mt, 2);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 3);
|
||
|
mtree_test_insert(mt, 22, (void *)0x2d);
|
||
|
mtree_test_insert(mt, 15, (void *)0x1f);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 12, (void *)0x19);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_store_range(mt, 4, 62, (void *)0x9);
|
||
|
mtree_test_erase(mt, 62);
|
||
|
mtree_test_store_range(mt, 1, 0, (void *)0x3);
|
||
|
mtree_test_insert(mt, 11, (void *)0x17);
|
||
|
mtree_test_insert(mt, 3, (void *)0x7);
|
||
|
mtree_test_insert(mt, 3, (void *)0x7);
|
||
|
mtree_test_store(mt, 62, (void *)0x7d);
|
||
|
mtree_test_erase(mt, 62);
|
||
|
mtree_test_store_range(mt, 1, 15, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 22, (void *)0x2d);
|
||
|
mtree_test_insert(mt, 12, (void *)0x19);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 3, (void *)0x7);
|
||
|
mtree_test_store(mt, 62, (void *)0x7d);
|
||
|
mtree_test_erase(mt, 62);
|
||
|
mtree_test_insert(mt, 122, (void *)0xf5);
|
||
|
mtree_test_store(mt, 3, (void *)0x7);
|
||
|
mtree_test_insert(mt, 0, (void *)0x1);
|
||
|
mtree_test_store_range(mt, 0, 1, (void *)0x1);
|
||
|
mtree_test_insert(mt, 85, (void *)0xab);
|
||
|
mtree_test_insert(mt, 72, (void *)0x91);
|
||
|
mtree_test_insert(mt, 81, (void *)0xa3);
|
||
|
mtree_test_insert(mt, 726, (void *)0x5ad);
|
||
|
mtree_test_insert(mt, 0, (void *)0x1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_store(mt, 51, (void *)0x67);
|
||
|
mtree_test_insert(mt, 611, (void *)0x4c7);
|
||
|
mtree_test_insert(mt, 485, (void *)0x3cb);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 0, (void *)0x1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert_range(mt, 26, 1, (void *)0x35);
|
||
|
mtree_test_load(mt, 1);
|
||
|
mtree_test_store_range(mt, 1, 22, (void *)0x3);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_load(mt, 53);
|
||
|
mtree_test_load(mt, 1);
|
||
|
mtree_test_store_range(mt, 1, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 222, (void *)0x1bd);
|
||
|
mtree_test_insert(mt, 485, (void *)0x3cb);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_insert(mt, 21, (void *)0x2b);
|
||
|
mtree_test_insert(mt, 3, (void *)0x7);
|
||
|
mtree_test_store(mt, 621, (void *)0x4db);
|
||
|
mtree_test_insert(mt, 0, (void *)0x1);
|
||
|
mtree_test_erase(mt, 5);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_store(mt, 62, (void *)0x7d);
|
||
|
mtree_test_erase(mt, 62);
|
||
|
mtree_test_store_range(mt, 1, 0, (void *)0x3);
|
||
|
mtree_test_insert(mt, 22, (void *)0x2d);
|
||
|
mtree_test_insert(mt, 12, (void *)0x19);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_store_range(mt, 4, 62, (void *)0x9);
|
||
|
mtree_test_erase(mt, 62);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_load(mt, 1);
|
||
|
mtree_test_store_range(mt, 1, 22, (void *)0x3);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_load(mt, 53);
|
||
|
mtree_test_load(mt, 1);
|
||
|
mtree_test_store_range(mt, 1, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 222, (void *)0x1bd);
|
||
|
mtree_test_insert(mt, 485, (void *)0x3cb);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 7. Previous fix was incomplete, fix mas_resuse_node() clearing of old
|
||
|
* data by overwriting it first - that way metadata is of no concern.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_load(mt, 1);
|
||
|
mtree_test_insert(mt, 102, (void *)0xcd);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_insert(mt, 4, (void *)0x9);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 110, (void *)0xdd);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert_range(mt, 5, 0, (void *)0xb);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_store(mt, 112, (void *)0xe1);
|
||
|
mtree_test_insert(mt, 21, (void *)0x2b);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert_range(mt, 110, 2, (void *)0xdd);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_load(mt, 22);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 210, (void *)0x1a5);
|
||
|
mtree_test_store_range(mt, 0, 2, (void *)0x1);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_erase(mt, 22);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_load(mt, 112);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert_range(mt, 1, 2, (void *)0x3);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert_range(mt, 1, 2, (void *)0x3);
|
||
|
mtree_test_erase(mt, 0);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_load(mt, 112);
|
||
|
mtree_test_store_range(mt, 110, 12, (void *)0xdd);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_load(mt, 110);
|
||
|
mtree_test_insert_range(mt, 4, 71, (void *)0x9);
|
||
|
mtree_test_load(mt, 2);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert_range(mt, 11, 22, (void *)0x17);
|
||
|
mtree_test_erase(mt, 12);
|
||
|
mtree_test_store(mt, 2, (void *)0x5);
|
||
|
mtree_test_load(mt, 22);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
|
||
|
/*
|
||
|
* 8. When rebalancing or spanning_rebalance(), the max of the new node
|
||
|
* may be set incorrectly to the final pivot and not the right max.
|
||
|
* Fix by setting the left max to orig right max if the entire node is
|
||
|
* consumed.
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_store(mt, 6, (void *)0xd);
|
||
|
mtree_test_store(mt, 67, (void *)0x87);
|
||
|
mtree_test_insert(mt, 15, (void *)0x1f);
|
||
|
mtree_test_insert(mt, 6716, (void *)0x3479);
|
||
|
mtree_test_store(mt, 61, (void *)0x7b);
|
||
|
mtree_test_insert(mt, 13, (void *)0x1b);
|
||
|
mtree_test_store(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_load(mt, 0);
|
||
|
mtree_test_erase(mt, 67167);
|
||
|
mtree_test_insert_range(mt, 6, 7167, (void *)0xd);
|
||
|
mtree_test_insert(mt, 6, (void *)0xd);
|
||
|
mtree_test_erase(mt, 67);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 667167);
|
||
|
mtree_test_insert(mt, 6, (void *)0xd);
|
||
|
mtree_test_store(mt, 67, (void *)0x87);
|
||
|
mtree_test_insert(mt, 5, (void *)0xb);
|
||
|
mtree_test_erase(mt, 1);
|
||
|
mtree_test_insert(mt, 6, (void *)0xd);
|
||
|
mtree_test_erase(mt, 67);
|
||
|
mtree_test_insert(mt, 15, (void *)0x1f);
|
||
|
mtree_test_insert(mt, 67167, (void *)0x20cbf);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_load(mt, 7);
|
||
|
mtree_test_insert(mt, 16, (void *)0x21);
|
||
|
mtree_test_insert(mt, 36, (void *)0x49);
|
||
|
mtree_test_store(mt, 67, (void *)0x87);
|
||
|
mtree_test_store(mt, 6, (void *)0xd);
|
||
|
mtree_test_insert(mt, 367, (void *)0x2df);
|
||
|
mtree_test_insert(mt, 115, (void *)0xe7);
|
||
|
mtree_test_store(mt, 0, (void *)0x1);
|
||
|
mtree_test_store_range(mt, 1, 3, (void *)0x3);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 67167);
|
||
|
mtree_test_insert_range(mt, 6, 47, (void *)0xd);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert_range(mt, 1, 67, (void *)0x3);
|
||
|
mtree_test_load(mt, 67);
|
||
|
mtree_test_insert(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 67167);
|
||
|
mtree_destroy(mt);
|
||
|
|
||
|
/*
|
||
|
* 9. spanning store to the end of data caused an invalid metadata
|
||
|
* length which resulted in a crash eventually.
|
||
|
* Fix by checking if there is a value in pivot before incrementing the
|
||
|
* metadata end in mab_mas_cp(). To ensure this doesn't happen again,
|
||
|
* abstract the two locations this happens into a function called
|
||
|
* mas_leaf_set_meta().
|
||
|
*/
|
||
|
mt_init_flags(mt, 0);
|
||
|
mtree_test_insert(mt, 21, (void *)0x2b);
|
||
|
mtree_test_insert(mt, 12, (void *)0x19);
|
||
|
mtree_test_insert(mt, 6, (void *)0xd);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, 91, (void *)0xb7);
|
||
|
mtree_test_insert(mt, 18, (void *)0x25);
|
||
|
mtree_test_insert(mt, 81, (void *)0xa3);
|
||
|
mtree_test_store_range(mt, 0, 128, (void *)0x1);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_erase(mt, 8);
|
||
|
mtree_test_insert(mt, 11, (void *)0x17);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 21, (void *)0x2b);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, ULONG_MAX - 10, (void *)0xffffffffffffffeb);
|
||
|
mtree_test_erase(mt, ULONG_MAX - 10);
|
||
|
mtree_test_store_range(mt, 0, 281, (void *)0x1);
|
||
|
mtree_test_erase(mt, 2);
|
||
|
mtree_test_insert(mt, 1211, (void *)0x977);
|
||
|
mtree_test_insert(mt, 111, (void *)0xdf);
|
||
|
mtree_test_insert(mt, 13, (void *)0x1b);
|
||
|
mtree_test_insert(mt, 211, (void *)0x1a7);
|
||
|
mtree_test_insert(mt, 11, (void *)0x17);
|
||
|
mtree_test_insert(mt, 5, (void *)0xb);
|
||
|
mtree_test_insert(mt, 1218, (void *)0x985);
|
||
|
mtree_test_insert(mt, 61, (void *)0x7b);
|
||
|
mtree_test_store(mt, 1, (void *)0x3);
|
||
|
mtree_test_insert(mt, 121, (void *)0xf3);
|
||
|
mtree_test_insert(mt, 8, (void *)0x11);
|
||
|
mtree_test_insert(mt, 21, (void *)0x2b);
|
||
|
mtree_test_insert(mt, 2, (void *)0x5);
|
||
|
mtree_test_insert(mt, ULONG_MAX - 10, (void *)0xffffffffffffffeb);
|
||
|
mtree_test_erase(mt, ULONG_MAX - 10);
|
||
|
}
|
||
|
|
||
|
/* duplicate the tree with a specific gap */
|
||
|
static noinline void __init check_dup_gaps(struct maple_tree *mt,
|
||
|
unsigned long nr_entries, bool zero_start,
|
||
|
unsigned long gap)
|
||
|
{
|
||
|
unsigned long i = 0;
|
||
|
struct maple_tree newmt;
|
||
|
int ret;
|
||
|
void *tmp;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
MA_STATE(newmas, &newmt, 0, 0);
|
||
|
|
||
|
if (!zero_start)
|
||
|
i = 1;
|
||
|
|
||
|
mt_zero_nr_tallocated();
|
||
|
for (; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, (i+1)*10 - gap,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE);
|
||
|
mt_set_non_kernel(99999);
|
||
|
mas_lock(&newmas);
|
||
|
ret = mas_expected_entries(&newmas, nr_entries);
|
||
|
mt_set_non_kernel(0);
|
||
|
MT_BUG_ON(mt, ret != 0);
|
||
|
|
||
|
rcu_read_lock();
|
||
|
mas_for_each(&mas, tmp, ULONG_MAX) {
|
||
|
newmas.index = mas.index;
|
||
|
newmas.last = mas.last;
|
||
|
mas_store(&newmas, tmp);
|
||
|
}
|
||
|
rcu_read_unlock();
|
||
|
mas_destroy(&newmas);
|
||
|
mas_unlock(&newmas);
|
||
|
|
||
|
mtree_destroy(&newmt);
|
||
|
}
|
||
|
|
||
|
/* Duplicate many sizes of trees. Mainly to test expected entry values */
|
||
|
static noinline void __init check_dup(struct maple_tree *mt)
|
||
|
{
|
||
|
int i;
|
||
|
int big_start = 100010;
|
||
|
|
||
|
/* Check with a value at zero */
|
||
|
for (i = 10; i < 1000; i++) {
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup_gaps(mt, i, true, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
}
|
||
|
|
||
|
cond_resched();
|
||
|
mt_cache_shrink();
|
||
|
/* Check with a value at zero, no gap */
|
||
|
for (i = 1000; i < 2000; i++) {
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup_gaps(mt, i, true, 0);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
}
|
||
|
|
||
|
cond_resched();
|
||
|
mt_cache_shrink();
|
||
|
/* Check with a value at zero and unreasonably large */
|
||
|
for (i = big_start; i < big_start + 10; i++) {
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup_gaps(mt, i, true, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
}
|
||
|
|
||
|
cond_resched();
|
||
|
mt_cache_shrink();
|
||
|
/* Small to medium size not starting at zero*/
|
||
|
for (i = 200; i < 1000; i++) {
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup_gaps(mt, i, false, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
}
|
||
|
|
||
|
cond_resched();
|
||
|
mt_cache_shrink();
|
||
|
/* Unreasonably large not starting at zero*/
|
||
|
for (i = big_start; i < big_start + 10; i++) {
|
||
|
mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup_gaps(mt, i, false, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
cond_resched();
|
||
|
mt_cache_shrink();
|
||
|
}
|
||
|
|
||
|
/* Check non-allocation tree not starting at zero */
|
||
|
for (i = 1500; i < 3000; i++) {
|
||
|
mt_init_flags(mt, 0);
|
||
|
check_dup_gaps(mt, i, false, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
cond_resched();
|
||
|
if (i % 2 == 0)
|
||
|
mt_cache_shrink();
|
||
|
}
|
||
|
|
||
|
mt_cache_shrink();
|
||
|
/* Check non-allocation tree starting at zero */
|
||
|
for (i = 200; i < 1000; i++) {
|
||
|
mt_init_flags(mt, 0);
|
||
|
check_dup_gaps(mt, i, true, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
cond_resched();
|
||
|
}
|
||
|
|
||
|
mt_cache_shrink();
|
||
|
/* Unreasonably large */
|
||
|
for (i = big_start + 5; i < big_start + 10; i++) {
|
||
|
mt_init_flags(mt, 0);
|
||
|
check_dup_gaps(mt, i, true, 5);
|
||
|
mtree_destroy(mt);
|
||
|
rcu_barrier();
|
||
|
mt_cache_shrink();
|
||
|
cond_resched();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_bnode_min_spanning(struct maple_tree *mt)
|
||
|
{
|
||
|
int i = 50;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
mt_set_non_kernel(9999);
|
||
|
mas_lock(&mas);
|
||
|
do {
|
||
|
mas_set_range(&mas, i*10, i*10+9);
|
||
|
mas_store(&mas, check_bnode_min_spanning);
|
||
|
} while (i--);
|
||
|
|
||
|
mas_set_range(&mas, 240, 509);
|
||
|
mas_store(&mas, NULL);
|
||
|
mas_unlock(&mas);
|
||
|
mas_destroy(&mas);
|
||
|
mt_set_non_kernel(0);
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_empty_area_window(struct maple_tree *mt)
|
||
|
{
|
||
|
unsigned long i, nr_entries = 20;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
for (i = 1; i <= nr_entries; i++)
|
||
|
mtree_store_range(mt, i*10, i*10 + 9,
|
||
|
xa_mk_value(i), GFP_KERNEL);
|
||
|
|
||
|
/* Create another hole besides the one at 0 */
|
||
|
mtree_store_range(mt, 160, 169, NULL, GFP_KERNEL);
|
||
|
|
||
|
/* Check lower bounds that don't fit */
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 5, 90, 10) != -EBUSY);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 6, 90, 5) != -EBUSY);
|
||
|
|
||
|
/* Check lower bound that does fit */
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 5, 90, 5) != 0);
|
||
|
MT_BUG_ON(mt, mas.index != 5);
|
||
|
MT_BUG_ON(mt, mas.last != 9);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
/* Check one gap that doesn't fit and one that does */
|
||
|
rcu_read_lock();
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 5, 217, 9) != 0);
|
||
|
MT_BUG_ON(mt, mas.index != 161);
|
||
|
MT_BUG_ON(mt, mas.last != 169);
|
||
|
|
||
|
/* Check one gap that does fit above the min */
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 100, 218, 3) != 0);
|
||
|
MT_BUG_ON(mt, mas.index != 216);
|
||
|
MT_BUG_ON(mt, mas.last != 218);
|
||
|
|
||
|
/* Check size that doesn't fit any gap */
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 100, 218, 16) != -EBUSY);
|
||
|
|
||
|
/*
|
||
|
* Check size that doesn't fit the lower end of the window but
|
||
|
* does fit the gap
|
||
|
*/
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 167, 200, 4) != -EBUSY);
|
||
|
|
||
|
/*
|
||
|
* Check size that doesn't fit the upper end of the window but
|
||
|
* does fit the gap
|
||
|
*/
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area_rev(&mas, 100, 162, 4) != -EBUSY);
|
||
|
|
||
|
/* Check mas_empty_area forward */
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, 100, 9) != 0);
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != 8);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, 100, 4) != 0);
|
||
|
MT_BUG_ON(mt, mas.index != 0);
|
||
|
MT_BUG_ON(mt, mas.last != 3);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, 100, 11) != -EBUSY);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 5, 100, 6) != -EBUSY);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, 8, 10) != -EBUSY);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
mas_empty_area(&mas, 100, 165, 3);
|
||
|
|
||
|
mas_reset(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 100, 163, 6) != -EBUSY);
|
||
|
rcu_read_unlock();
|
||
|
}
|
||
|
|
||
|
static noinline void __init check_empty_area_fill(struct maple_tree *mt)
|
||
|
{
|
||
|
const unsigned long max = 0x25D78000;
|
||
|
unsigned long size;
|
||
|
int loop, shift;
|
||
|
MA_STATE(mas, mt, 0, 0);
|
||
|
|
||
|
mt_set_non_kernel(99999);
|
||
|
for (shift = 12; shift <= 16; shift++) {
|
||
|
loop = 5000;
|
||
|
size = 1 << shift;
|
||
|
while (loop--) {
|
||
|
mas_set(&mas, 0);
|
||
|
mas_lock(&mas);
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, max, size) != 0);
|
||
|
MT_BUG_ON(mt, mas.last != mas.index + size - 1);
|
||
|
mas_store_gfp(&mas, (void *)size, GFP_KERNEL);
|
||
|
mas_unlock(&mas);
|
||
|
mas_reset(&mas);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* No space left. */
|
||
|
size = 0x1000;
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 0, max, size) != -EBUSY);
|
||
|
rcu_read_unlock();
|
||
|
|
||
|
/* Fill a depth 3 node to the maximum */
|
||
|
for (unsigned long i = 629440511; i <= 629440800; i += 6)
|
||
|
mtree_store_range(mt, i, i + 5, (void *)i, GFP_KERNEL);
|
||
|
/* Make space in the second-last depth 4 node */
|
||
|
mtree_erase(mt, 631668735);
|
||
|
/* Make space in the last depth 4 node */
|
||
|
mtree_erase(mt, 629506047);
|
||
|
mas_reset(&mas);
|
||
|
/* Search from just after the gap in the second-last depth 4 */
|
||
|
rcu_read_lock();
|
||
|
MT_BUG_ON(mt, mas_empty_area(&mas, 629506048, 690000000, 0x5000) != 0);
|
||
|
rcu_read_unlock();
|
||
|
mt_set_non_kernel(0);
|
||
|
}
|
||
|
|
||
|
static DEFINE_MTREE(tree);
|
||
|
static int __init maple_tree_seed(void)
|
||
|
{
|
||
|
unsigned long set[] = { 5015, 5014, 5017, 25, 1000,
|
||
|
1001, 1002, 1003, 1005, 0,
|
||
|
5003, 5002};
|
||
|
void *ptr = &set;
|
||
|
|
||
|
pr_info("\nTEST STARTING\n\n");
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_root_expand(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
#if defined(BENCH_SLOT_STORE)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_slot_store(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
#if defined(BENCH_NODE_STORE)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_node_store(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
#if defined(BENCH_AWALK)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_awalk(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
#if defined(BENCH_WALK)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_walk(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
#if defined(BENCH_FORK)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_forking(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
#if defined(BENCH_MT_FOR_EACH)
|
||
|
#define BENCH
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
bench_mt_for_each(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
goto skip;
|
||
|
#endif
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_iteration(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_forking(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_mas_store_gfp(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
/* Test ranges (store and insert) */
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_ranges(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
#if defined(CONFIG_64BIT)
|
||
|
/* These tests have ranges outside of 4GB */
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_alloc_range(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_alloc_rev_range(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
#endif
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
|
||
|
check_load(&tree, set[0], NULL); /* See if 5015 -> NULL */
|
||
|
|
||
|
check_insert(&tree, set[9], &tree); /* Insert 0 */
|
||
|
check_load(&tree, set[9], &tree); /* See if 0 -> &tree */
|
||
|
check_load(&tree, set[0], NULL); /* See if 5015 -> NULL */
|
||
|
|
||
|
check_insert(&tree, set[10], ptr); /* Insert 5003 */
|
||
|
check_load(&tree, set[9], &tree); /* See if 0 -> &tree */
|
||
|
check_load(&tree, set[11], NULL); /* See if 5002 -> NULL */
|
||
|
check_load(&tree, set[10], ptr); /* See if 5003 -> ptr */
|
||
|
|
||
|
/* Clear out the tree */
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
/* Try to insert, insert a dup, and load back what was inserted. */
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_insert(&tree, set[0], &tree); /* Insert 5015 */
|
||
|
check_dup_insert(&tree, set[0], &tree); /* Insert 5015 again */
|
||
|
check_load(&tree, set[0], &tree); /* See if 5015 -> &tree */
|
||
|
|
||
|
/*
|
||
|
* Second set of tests try to load a value that doesn't exist, inserts
|
||
|
* a second value, then loads the value again
|
||
|
*/
|
||
|
check_load(&tree, set[1], NULL); /* See if 5014 -> NULL */
|
||
|
check_insert(&tree, set[1], ptr); /* insert 5014 -> ptr */
|
||
|
check_load(&tree, set[1], ptr); /* See if 5014 -> ptr */
|
||
|
check_load(&tree, set[0], &tree); /* See if 5015 -> &tree */
|
||
|
/*
|
||
|
* Tree currently contains:
|
||
|
* p[0]: 14 -> (nil) p[1]: 15 -> ptr p[2]: 16 -> &tree p[3]: 0 -> (nil)
|
||
|
*/
|
||
|
check_insert(&tree, set[6], ptr); /* insert 1002 -> ptr */
|
||
|
check_insert(&tree, set[7], &tree); /* insert 1003 -> &tree */
|
||
|
|
||
|
check_load(&tree, set[0], &tree); /* See if 5015 -> &tree */
|
||
|
check_load(&tree, set[1], ptr); /* See if 5014 -> ptr */
|
||
|
check_load(&tree, set[6], ptr); /* See if 1002 -> ptr */
|
||
|
check_load(&tree, set[7], &tree); /* 1003 = &tree ? */
|
||
|
|
||
|
/* Clear out tree */
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
/* Test inserting into a NULL hole. */
|
||
|
check_insert(&tree, set[5], ptr); /* insert 1001 -> ptr */
|
||
|
check_insert(&tree, set[7], &tree); /* insert 1003 -> &tree */
|
||
|
check_insert(&tree, set[6], ptr); /* insert 1002 -> ptr */
|
||
|
check_load(&tree, set[5], ptr); /* See if 1001 -> ptr */
|
||
|
check_load(&tree, set[6], ptr); /* See if 1002 -> ptr */
|
||
|
check_load(&tree, set[7], &tree); /* See if 1003 -> &tree */
|
||
|
|
||
|
/* Clear out the tree */
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
/*
|
||
|
* set[] = {5015, 5014, 5017, 25, 1000,
|
||
|
* 1001, 1002, 1003, 1005, 0,
|
||
|
* 5003, 5002};
|
||
|
*/
|
||
|
|
||
|
check_insert(&tree, set[0], ptr); /* 5015 */
|
||
|
check_insert(&tree, set[1], &tree); /* 5014 */
|
||
|
check_insert(&tree, set[2], ptr); /* 5017 */
|
||
|
check_insert(&tree, set[3], &tree); /* 25 */
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_load(&tree, set[1], &tree);
|
||
|
check_load(&tree, set[2], ptr);
|
||
|
check_load(&tree, set[3], &tree);
|
||
|
check_insert(&tree, set[4], ptr); /* 1000 < Should split. */
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_load(&tree, set[1], &tree);
|
||
|
check_load(&tree, set[2], ptr);
|
||
|
check_load(&tree, set[3], &tree); /*25 */
|
||
|
check_load(&tree, set[4], ptr);
|
||
|
check_insert(&tree, set[5], &tree); /* 1001 */
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_load(&tree, set[1], &tree);
|
||
|
check_load(&tree, set[2], ptr);
|
||
|
check_load(&tree, set[3], &tree);
|
||
|
check_load(&tree, set[4], ptr);
|
||
|
check_load(&tree, set[5], &tree);
|
||
|
check_insert(&tree, set[6], ptr);
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_load(&tree, set[1], &tree);
|
||
|
check_load(&tree, set[2], ptr);
|
||
|
check_load(&tree, set[3], &tree);
|
||
|
check_load(&tree, set[4], ptr);
|
||
|
check_load(&tree, set[5], &tree);
|
||
|
check_load(&tree, set[6], ptr);
|
||
|
check_insert(&tree, set[7], &tree);
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_insert(&tree, set[8], ptr);
|
||
|
|
||
|
check_insert(&tree, set[9], &tree);
|
||
|
|
||
|
check_load(&tree, set[0], ptr);
|
||
|
check_load(&tree, set[1], &tree);
|
||
|
check_load(&tree, set[2], ptr);
|
||
|
check_load(&tree, set[3], &tree);
|
||
|
check_load(&tree, set[4], ptr);
|
||
|
check_load(&tree, set[5], &tree);
|
||
|
check_load(&tree, set[6], ptr);
|
||
|
check_load(&tree, set[9], &tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_seq(&tree, 16, false);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_seq(&tree, 1000, true);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_rev_seq(&tree, 1000, true);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
check_lower_bound_split(&tree);
|
||
|
check_upper_bound_split(&tree);
|
||
|
check_mid_split(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_next_entry(&tree);
|
||
|
check_find(&tree);
|
||
|
check_find_2(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_prev_entry(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_gap_combining(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_node_overwrite(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
next_prev_test(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_spanning_relatives(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_rev_find(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, 0);
|
||
|
check_fuzzer(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_dup(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_bnode_min_spanning(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_empty_area_window(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
mt_init_flags(&tree, MT_FLAGS_ALLOC_RANGE);
|
||
|
check_empty_area_fill(&tree);
|
||
|
mtree_destroy(&tree);
|
||
|
|
||
|
|
||
|
#if defined(BENCH)
|
||
|
skip:
|
||
|
#endif
|
||
|
rcu_barrier();
|
||
|
pr_info("maple_tree: %u of %u tests passed\n",
|
||
|
atomic_read(&maple_tree_tests_passed),
|
||
|
atomic_read(&maple_tree_tests_run));
|
||
|
if (atomic_read(&maple_tree_tests_run) ==
|
||
|
atomic_read(&maple_tree_tests_passed))
|
||
|
return 0;
|
||
|
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
static void __exit maple_tree_harvest(void)
|
||
|
{
|
||
|
|
||
|
}
|
||
|
|
||
|
module_init(maple_tree_seed);
|
||
|
module_exit(maple_tree_harvest);
|
||
|
MODULE_AUTHOR("Liam R. Howlett <Liam.Howlett@Oracle.com>");
|
||
|
MODULE_LICENSE("GPL");
|