} while (0)
#endif
+static void *xa_mk_index(unsigned long index)
+{
+ return xa_mk_value(index & LONG_MAX);
+}
+
static void *xa_store_index(struct xarray *xa, unsigned long index, gfp_t gfp)
{
- return xa_store(xa, index, xa_mk_value(index & LONG_MAX), gfp);
+ return xa_store(xa, index, xa_mk_index(index), gfp);
}
static void xa_alloc_index(struct xarray *xa, unsigned long index, gfp_t gfp)
{
u32 id = 0;
- XA_BUG_ON(xa, xa_alloc(xa, &id, UINT_MAX, xa_mk_value(index & LONG_MAX),
+ XA_BUG_ON(xa, xa_alloc(xa, &id, UINT_MAX, xa_mk_index(index),
gfp) != 0);
XA_BUG_ON(xa, id != index);
}
static void xa_erase_index(struct xarray *xa, unsigned long index)
{
- XA_BUG_ON(xa, xa_erase(xa, index) != xa_mk_value(index & LONG_MAX));
+ XA_BUG_ON(xa, xa_erase(xa, index) != xa_mk_index(index));
XA_BUG_ON(xa, xa_load(xa, index) != NULL);
}
xas_set(&xas, 0);
xas_for_each(&xas, entry, ULONG_MAX) {
- xas_store(&xas, xa_mk_value(xas.xa_index));
+ xas_store(&xas, xa_mk_index(xas.xa_index));
}
xas_unlock(&xas);
XA_BUG_ON(xa, xa_store_index(xa, index + 1, GFP_KERNEL));
xa_set_mark(xa, index + 1, XA_MARK_0);
XA_BUG_ON(xa, xa_store_index(xa, index + 2, GFP_KERNEL));
- xa_set_mark(xa, index + 2, XA_MARK_1);
+ xa_set_mark(xa, index + 2, XA_MARK_2);
XA_BUG_ON(xa, xa_store_index(xa, next, GFP_KERNEL));
- xa_store_order(xa, index, order, xa_mk_value(index),
+ xa_store_order(xa, index, order, xa_mk_index(index),
GFP_KERNEL);
for (i = base; i < next; i++) {
XA_STATE(xas, xa, i);
void *entry;
XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_0));
- XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_1));
- XA_BUG_ON(xa, xa_get_mark(xa, i, XA_MARK_2));
+ XA_BUG_ON(xa, xa_get_mark(xa, i, XA_MARK_1));
+ XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_2));
/* We should see two elements in the array */
+ rcu_read_lock();
xas_for_each(&xas, entry, ULONG_MAX)
seen++;
+ rcu_read_unlock();
XA_BUG_ON(xa, seen != 2);
/* One of which is marked */
xas_set(&xas, 0);
seen = 0;
+ rcu_read_lock();
xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0)
seen++;
+ rcu_read_unlock();
XA_BUG_ON(xa, seen != 1);
}
XA_BUG_ON(xa, xa_get_mark(xa, next, XA_MARK_0));
static noinline void check_reserve(struct xarray *xa)
{
void *entry;
- unsigned long index = 0;
+ unsigned long index;
/* An array with a reserved entry is not empty */
XA_BUG_ON(xa, !xa_empty(xa));
xa_erase_index(xa, 12345678);
XA_BUG_ON(xa, !xa_empty(xa));
+ /* But xa_insert does not */
+ xa_reserve(xa, 12345678, GFP_KERNEL);
+ XA_BUG_ON(xa, xa_insert(xa, 12345678, xa_mk_value(12345678), 0) !=
+ -EEXIST);
+ XA_BUG_ON(xa, xa_empty(xa));
+ XA_BUG_ON(xa, xa_erase(xa, 12345678) != NULL);
+ XA_BUG_ON(xa, !xa_empty(xa));
+
/* Can iterate through a reserved entry */
xa_store_index(xa, 5, GFP_KERNEL);
xa_reserve(xa, 6, GFP_KERNEL);
xa_store_index(xa, 7, GFP_KERNEL);
- xa_for_each(xa, entry, index, ULONG_MAX, XA_PRESENT) {
+ xa_for_each(xa, index, entry) {
XA_BUG_ON(xa, index != 5 && index != 7);
}
xa_destroy(xa);
xas_set(&xas, j);
do {
xas_lock(&xas);
- xas_store(&xas, xa_mk_value(j));
+ xas_store(&xas, xa_mk_index(j));
xas_unlock(&xas);
} while (xas_nomem(&xas, GFP_KERNEL));
}
xas_set(&xas, 0);
j = i;
xas_for_each(&xas, entry, ULONG_MAX) {
- XA_BUG_ON(xa, entry != xa_mk_value(j));
+ XA_BUG_ON(xa, entry != xa_mk_index(j));
xas_store(&xas, NULL);
j++;
}
unsigned long min = index & ~((1UL << order) - 1);
unsigned long max = min + (1UL << order);
- xa_store_order(xa, index, order, xa_mk_value(index), GFP_KERNEL);
- XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_value(index));
- XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_value(index));
+ xa_store_order(xa, index, order, xa_mk_index(index), GFP_KERNEL);
+ XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_index(index));
+ XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_index(index));
XA_BUG_ON(xa, xa_load(xa, max) != NULL);
XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL);
- XA_BUG_ON(xa, xas_store(&xas, xa_mk_value(min)) != xa_mk_value(index));
- XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_value(min));
- XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_value(min));
+ xas_lock(&xas);
+ XA_BUG_ON(xa, xas_store(&xas, xa_mk_index(min)) != xa_mk_index(index));
+ xas_unlock(&xas);
+ XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_index(min));
+ XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_index(min));
XA_BUG_ON(xa, xa_load(xa, max) != NULL);
XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL);
XA_STATE(xas, xa, index);
xa_store_order(xa, index, order, xa_mk_value(0), GFP_KERNEL);
+ xas_lock(&xas);
XA_BUG_ON(xa, xas_store(&xas, xa_mk_value(1)) != xa_mk_value(0));
XA_BUG_ON(xa, xas.xa_index != index);
XA_BUG_ON(xa, xas_store(&xas, NULL) != xa_mk_value(1));
+ xas_unlock(&xas);
XA_BUG_ON(xa, !xa_empty(xa));
}
+
+static noinline void check_multi_store_3(struct xarray *xa, unsigned long index,
+ unsigned int order)
+{
+ XA_STATE(xas, xa, 0);
+ void *entry;
+ int n = 0;
+
+ xa_store_order(xa, index, order, xa_mk_index(index), GFP_KERNEL);
+
+ xas_lock(&xas);
+ xas_for_each(&xas, entry, ULONG_MAX) {
+ XA_BUG_ON(xa, entry != xa_mk_index(index));
+ n++;
+ }
+ XA_BUG_ON(xa, n != 1);
+ xas_set(&xas, index + 1);
+ xas_for_each(&xas, entry, ULONG_MAX) {
+ XA_BUG_ON(xa, entry != xa_mk_index(index));
+ n++;
+ }
+ XA_BUG_ON(xa, n != 2);
+ xas_unlock(&xas);
+
+ xa_destroy(xa);
+}
#endif
static noinline void check_multi_store(struct xarray *xa)
rcu_read_unlock();
/* We can erase multiple values with a single store */
- xa_store_order(xa, 0, 63, NULL, GFP_KERNEL);
+ xa_store_order(xa, 0, BITS_PER_LONG - 1, NULL, GFP_KERNEL);
XA_BUG_ON(xa, !xa_empty(xa));
/* Even when the first slot is empty but the others aren't */
for (i = 0; i < max_order; i++) {
for (j = 0; j < max_order; j++) {
- xa_store_order(xa, 0, i, xa_mk_value(i), GFP_KERNEL);
- xa_store_order(xa, 0, j, xa_mk_value(j), GFP_KERNEL);
+ xa_store_order(xa, 0, i, xa_mk_index(i), GFP_KERNEL);
+ xa_store_order(xa, 0, j, xa_mk_index(j), GFP_KERNEL);
for (k = 0; k < max_order; k++) {
void *entry = xa_load(xa, (1UL << k) - 1);
if ((i < k) && (j < k))
XA_BUG_ON(xa, entry != NULL);
else
- XA_BUG_ON(xa, entry != xa_mk_value(j));
+ XA_BUG_ON(xa, entry != xa_mk_index(j));
}
xa_erase(xa, 0);
check_multi_store_1(xa, (1UL << i) + 1, i);
}
check_multi_store_2(xa, 4095, 9);
+
+ for (i = 1; i < 20; i++) {
+ check_multi_store_3(xa, 0, i);
+ check_multi_store_3(xa, 1UL << i, i);
+ }
#endif
}
xa_destroy(&xa0);
id = 0xfffffffeU;
- XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_value(0),
+ XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_index(id),
GFP_KERNEL) != 0);
XA_BUG_ON(&xa0, id != 0xfffffffeU);
- XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_value(0),
+ XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_index(id),
GFP_KERNEL) != 0);
XA_BUG_ON(&xa0, id != 0xffffffffU);
- XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_value(0),
+ XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, UINT_MAX, xa_mk_index(id),
GFP_KERNEL) != -ENOSPC);
XA_BUG_ON(&xa0, id != 0xffffffffU);
xa_destroy(&xa0);
+
+ id = 10;
+ XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, 5, xa_mk_index(id),
+ GFP_KERNEL) != -ENOSPC);
+ XA_BUG_ON(&xa0, xa_store_index(&xa0, 3, GFP_KERNEL) != 0);
+ XA_BUG_ON(&xa0, xa_alloc(&xa0, &id, 5, xa_mk_index(id),
+ GFP_KERNEL) != -ENOSPC);
+ xa_erase_index(&xa0, 3);
+ XA_BUG_ON(&xa0, !xa_empty(&xa0));
}
static noinline void __check_store_iter(struct xarray *xa, unsigned long start,
xas_lock(&xas);
xas_for_each_conflict(&xas, entry) {
XA_BUG_ON(xa, !xa_is_value(entry));
- XA_BUG_ON(xa, entry < xa_mk_value(start));
- XA_BUG_ON(xa, entry > xa_mk_value(start + (1UL << order) - 1));
+ XA_BUG_ON(xa, entry < xa_mk_index(start));
+ XA_BUG_ON(xa, entry > xa_mk_index(start + (1UL << order) - 1));
count++;
}
- xas_store(&xas, xa_mk_value(start));
+ xas_store(&xas, xa_mk_index(start));
xas_unlock(&xas);
if (xas_nomem(&xas, GFP_KERNEL)) {
count = 0;
}
XA_BUG_ON(xa, xas_error(&xas));
XA_BUG_ON(xa, count != present);
- XA_BUG_ON(xa, xa_load(xa, start) != xa_mk_value(start));
+ XA_BUG_ON(xa, xa_load(xa, start) != xa_mk_index(start));
XA_BUG_ON(xa, xa_load(xa, start + (1UL << order) - 1) !=
- xa_mk_value(start));
+ xa_mk_index(start));
xa_erase_index(xa, start);
}
for (j = 0; j < index; j++) {
XA_STATE(xas, xa, j + index);
xa_store_index(xa, index - 1, GFP_KERNEL);
- xa_store_order(xa, index, i, xa_mk_value(index),
+ xa_store_order(xa, index, i, xa_mk_index(index),
GFP_KERNEL);
rcu_read_lock();
xas_for_each(&xas, entry, ULONG_MAX) {
}
}
-static noinline void check_find(struct xarray *xa)
+static noinline void check_find_1(struct xarray *xa)
{
unsigned long i, j, k;
XA_BUG_ON(xa, xa_get_mark(xa, i, XA_MARK_0));
}
XA_BUG_ON(xa, !xa_empty(xa));
+}
+
+static noinline void check_find_2(struct xarray *xa)
+{
+ void *entry;
+ unsigned long i, j, index;
+
+ xa_for_each(xa, index, entry) {
+ XA_BUG_ON(xa, true);
+ }
+
+ for (i = 0; i < 1024; i++) {
+ xa_store_index(xa, index, GFP_KERNEL);
+ j = 0;
+ xa_for_each(xa, index, entry) {
+ XA_BUG_ON(xa, xa_mk_index(index) != entry);
+ XA_BUG_ON(xa, index != j++);
+ }
+ }
+
+ xa_destroy(xa);
+}
+
+static noinline void check_find_3(struct xarray *xa)
+{
+ XA_STATE(xas, xa, 0);
+ unsigned long i, j, k;
+ void *entry;
+
+ for (i = 0; i < 100; i++) {
+ for (j = 0; j < 100; j++) {
+ rcu_read_lock();
+ for (k = 0; k < 100; k++) {
+ xas_set(&xas, j);
+ xas_for_each_marked(&xas, entry, k, XA_MARK_0)
+ ;
+ if (j > k)
+ XA_BUG_ON(xa,
+ xas.xa_node != XAS_RESTART);
+ }
+ rcu_read_unlock();
+ }
+ xa_store_index(xa, i, GFP_KERNEL);
+ xa_set_mark(xa, i, XA_MARK_0);
+ }
+ xa_destroy(xa);
+}
+
+static noinline void check_find(struct xarray *xa)
+{
+ check_find_1(xa);
+ check_find_2(xa);
+ check_find_3(xa);
check_multi_find(xa);
check_multi_find_2(xa);
}
for (index = 0; index < (1UL << (order + 5));
index += (1UL << order)) {
xa_store_order(xa, index, order,
- xa_mk_value(index), GFP_KERNEL);
+ xa_mk_index(index), GFP_KERNEL);
XA_BUG_ON(xa, xa_load(xa, index) !=
- xa_mk_value(index));
+ xa_mk_index(index));
XA_BUG_ON(xa, xa_find_entry(xa,
- xa_mk_value(index)) != index);
+ xa_mk_index(index)) != index);
}
XA_BUG_ON(xa, xa_find_entry(xa, xa) != -1);
xa_destroy(xa);
XA_BUG_ON(xa, xa_find_entry(xa, xa) != -1);
xa_store_index(xa, ULONG_MAX, GFP_KERNEL);
XA_BUG_ON(xa, xa_find_entry(xa, xa) != -1);
- XA_BUG_ON(xa, xa_find_entry(xa, xa_mk_value(LONG_MAX)) != -1);
+ XA_BUG_ON(xa, xa_find_entry(xa, xa_mk_index(ULONG_MAX)) != -1);
xa_erase_index(xa, ULONG_MAX);
XA_BUG_ON(xa, !xa_empty(xa));
}
XA_BUG_ON(xa, xas.xa_node == XAS_RESTART);
XA_BUG_ON(xa, xas.xa_index != i);
if (i == 0 || i == idx)
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
else
XA_BUG_ON(xa, entry != NULL);
}
XA_BUG_ON(xa, xas.xa_node == XAS_RESTART);
XA_BUG_ON(xa, xas.xa_index != i);
if (i == 0 || i == idx)
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
else
XA_BUG_ON(xa, entry != NULL);
} while (i > 0);
do {
void *entry = xas_prev(&xas);
i--;
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
XA_BUG_ON(xa, i != xas.xa_index);
} while (i != 0);
do {
void *entry = xas_next(&xas);
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
XA_BUG_ON(xa, i != xas.xa_index);
i++;
} while (i < (1 << 16));
void *entry = xas_prev(&xas);
i--;
if ((i < (1 << 8)) || (i >= (1 << 15)))
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
else
XA_BUG_ON(xa, entry != NULL);
XA_BUG_ON(xa, i != xas.xa_index);
do {
void *entry = xas_next(&xas);
if ((i < (1 << 8)) || (i >= (1 << 15)))
- XA_BUG_ON(xa, entry != xa_mk_value(i));
+ XA_BUG_ON(xa, entry != xa_mk_index(i));
else
XA_BUG_ON(xa, entry != NULL);
XA_BUG_ON(xa, i != xas.xa_index);
if (xas_error(&xas))
goto unlock;
for (i = 0; i < (1U << order); i++) {
- XA_BUG_ON(xa, xas_store(&xas, xa_mk_value(index + i)));
+ XA_BUG_ON(xa, xas_store(&xas, xa_mk_index(index + i)));
xas_next(&xas);
}
unlock:
if (xas_error(&xas))
goto unlock;
for (i = 0; i < (1UL << order); i++) {
- void *old = xas_store(&xas, xa_mk_value(base + i));
+ void *old = xas_store(&xas, xa_mk_index(base + i));
if (xas.xa_index == index)
- XA_BUG_ON(xa, old != xa_mk_value(base + i));
+ XA_BUG_ON(xa, old != xa_mk_index(base + i));
else
XA_BUG_ON(xa, old != NULL);
xas_next(&xas);
unsigned long last)
{
#ifdef CONFIG_XARRAY_MULTI
- xa_store_range(xa, first, last, xa_mk_value(first), GFP_KERNEL);
+ xa_store_range(xa, first, last, xa_mk_index(first), GFP_KERNEL);
- XA_BUG_ON(xa, xa_load(xa, first) != xa_mk_value(first));
- XA_BUG_ON(xa, xa_load(xa, last) != xa_mk_value(first));
+ XA_BUG_ON(xa, xa_load(xa, first) != xa_mk_index(first));
+ XA_BUG_ON(xa, xa_load(xa, last) != xa_mk_index(first));
XA_BUG_ON(xa, xa_load(xa, first - 1) != NULL);
XA_BUG_ON(xa, xa_load(xa, last + 1) != NULL);
__check_store_range(xa, 4095 + i, 4095 + j);
__check_store_range(xa, 4096 + i, 4096 + j);
__check_store_range(xa, 123456 + i, 123456 + j);
- __check_store_range(xa, UINT_MAX + i, UINT_MAX + j);
+ __check_store_range(xa, (1 << 24) + i, (1 << 24) + j);
}
}
}
+static void check_align_1(struct xarray *xa, char *name)
+{
+ int i;
+ unsigned int id;
+ unsigned long index;
+ void *entry;
+
+ for (i = 0; i < 8; i++) {
+ id = 0;
+ XA_BUG_ON(xa, xa_alloc(xa, &id, UINT_MAX, name + i, GFP_KERNEL)
+ != 0);
+ XA_BUG_ON(xa, id != i);
+ }
+ xa_for_each(xa, index, entry)
+ XA_BUG_ON(xa, xa_is_err(entry));
+ xa_destroy(xa);
+}
+
+static noinline void check_align(struct xarray *xa)
+{
+ char name[] = "Motorola 68000";
+
+ check_align_1(xa, name);
+ check_align_1(xa, name + 1);
+ check_align_1(xa, name + 2);
+ check_align_1(xa, name + 3);
+// check_align_2(xa, name);
+}
+
static LIST_HEAD(shadow_nodes);
static void test_update_node(struct xa_node *node)
XA_STATE(xas, xa, 1 << order);
xa_store_order(xa, 0, order, xa, GFP_KERNEL);
+ rcu_read_lock();
xas_load(&xas);
XA_BUG_ON(xa, xas.xa_node->count == 0);
XA_BUG_ON(xa, xas.xa_node->count > (1 << order));
XA_BUG_ON(xa, xas.xa_node->nr_values != 0);
+ rcu_read_unlock();
- xa_store_order(xa, 1 << order, order, xa_mk_value(1 << order),
+ xa_store_order(xa, 1 << order, order, xa_mk_index(1UL << order),
GFP_KERNEL);
XA_BUG_ON(xa, xas.xa_node->count != xas.xa_node->nr_values * 2);
check_create_range(&array);
check_store_range(&array);
check_store_iter(&array);
+ check_align(&xa0);
check_workingset(&array, 0);
check_workingset(&array, 64);
projects / linux-2.6-block.git / blobdiff