Blame view
lib/test_xarray.c
46.5 KB
ad3d6c726 xarray: Add XArra... |
1 2 3 4 |
// SPDX-License-Identifier: GPL-2.0+ /* * test_xarray.c: Test the XArray API * Copyright (c) 2017-2018 Microsoft Corporation |
c44aa5e8a XArray: Fix xas_f... |
5 |
* Copyright (c) 2019-2020 Oracle |
ad3d6c726 xarray: Add XArra... |
6 7 8 9 10 11 12 13 |
* Author: Matthew Wilcox <willy@infradead.org> */ #include <linux/xarray.h> #include <linux/module.h> static unsigned int tests_run; static unsigned int tests_passed; |
bd40b17ca XArray: Fix xa_fi... |
14 15 |
static const unsigned int order_limit = IS_ENABLED(CONFIG_XARRAY_MULTI) ? BITS_PER_LONG : 1; |
ad3d6c726 xarray: Add XArra... |
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 |
#ifndef XA_DEBUG # ifdef __KERNEL__ void xa_dump(const struct xarray *xa) { } # endif #undef XA_BUG_ON #define XA_BUG_ON(xa, x) do { \ tests_run++; \ if (x) { \ printk("BUG at %s:%d ", __func__, __LINE__); \ xa_dump(xa); \ dump_stack(); \ } else { \ tests_passed++; \ } \ } while (0) #endif |
b7677a132 XArray tests: Han... |
33 34 35 36 |
static void *xa_mk_index(unsigned long index) { return xa_mk_value(index & LONG_MAX); } |
ad3d6c726 xarray: Add XArra... |
37 38 |
static void *xa_store_index(struct xarray *xa, unsigned long index, gfp_t gfp) { |
b7677a132 XArray tests: Han... |
39 |
return xa_store(xa, index, xa_mk_index(index), gfp); |
ad3d6c726 xarray: Add XArra... |
40 |
} |
12fd2aee6 XArray tests: Add... |
41 42 43 44 45 |
static void xa_insert_index(struct xarray *xa, unsigned long index) { XA_BUG_ON(xa, xa_insert(xa, index, xa_mk_index(index), GFP_KERNEL) != 0); } |
371c752dc xarray: Track fre... |
46 47 |
static void xa_alloc_index(struct xarray *xa, unsigned long index, gfp_t gfp) { |
a3e4d3f97 XArray: Redesign ... |
48 |
u32 id; |
371c752dc xarray: Track fre... |
49 |
|
a3e4d3f97 XArray: Redesign ... |
50 |
XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(index), xa_limit_32b, |
371c752dc xarray: Track fre... |
51 52 53 |
gfp) != 0); XA_BUG_ON(xa, id != index); } |
ad3d6c726 xarray: Add XArra... |
54 55 |
static void xa_erase_index(struct xarray *xa, unsigned long index) { |
b7677a132 XArray tests: Han... |
56 |
XA_BUG_ON(xa, xa_erase(xa, index) != xa_mk_index(index)); |
58d6ea308 xarray: Add XArra... |
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 |
XA_BUG_ON(xa, xa_load(xa, index) != NULL); } /* * If anyone needs this, please move it to xarray.c. We have no current * users outside the test suite because all current multislot users want * to use the advanced API. */ static void *xa_store_order(struct xarray *xa, unsigned long index, unsigned order, void *entry, gfp_t gfp) { XA_STATE_ORDER(xas, xa, index, order); void *curr; do { xas_lock(&xas); curr = xas_store(&xas, entry); xas_unlock(&xas); } while (xas_nomem(&xas, gfp)); return curr; } static noinline void check_xa_err(struct xarray *xa) { XA_BUG_ON(xa, xa_err(xa_store_index(xa, 0, GFP_NOWAIT)) != 0); XA_BUG_ON(xa, xa_err(xa_erase(xa, 0)) != 0); #ifndef __KERNEL__ /* The kernel does not fail GFP_NOWAIT allocations */ XA_BUG_ON(xa, xa_err(xa_store_index(xa, 1, GFP_NOWAIT)) != -ENOMEM); XA_BUG_ON(xa, xa_err(xa_store_index(xa, 1, GFP_NOWAIT)) != -ENOMEM); #endif XA_BUG_ON(xa, xa_err(xa_store_index(xa, 1, GFP_KERNEL)) != 0); XA_BUG_ON(xa, xa_err(xa_store(xa, 1, xa_mk_value(0), GFP_KERNEL)) != 0); XA_BUG_ON(xa, xa_err(xa_erase(xa, 1)) != 0); // kills the test-suite :-( // XA_BUG_ON(xa, xa_err(xa_store(xa, 0, xa_mk_internal(0), 0)) != -EINVAL); |
ad3d6c726 xarray: Add XArra... |
94 |
} |
b803b4282 xarray: Add XArra... |
95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 |
static noinline void check_xas_retry(struct xarray *xa) { XA_STATE(xas, xa, 0); void *entry; xa_store_index(xa, 0, GFP_KERNEL); xa_store_index(xa, 1, GFP_KERNEL); rcu_read_lock(); XA_BUG_ON(xa, xas_find(&xas, ULONG_MAX) != xa_mk_value(0)); xa_erase_index(xa, 1); XA_BUG_ON(xa, !xa_is_retry(xas_reload(&xas))); XA_BUG_ON(xa, xas_retry(&xas, NULL)); XA_BUG_ON(xa, xas_retry(&xas, xa_mk_value(0))); xas_reset(&xas); XA_BUG_ON(xa, xas.xa_node != XAS_RESTART); XA_BUG_ON(xa, xas_next_entry(&xas, ULONG_MAX) != xa_mk_value(0)); XA_BUG_ON(xa, xas.xa_node != NULL); |
bd54211b8 XArray tests: RCU... |
113 |
rcu_read_unlock(); |
b803b4282 xarray: Add XArra... |
114 115 |
XA_BUG_ON(xa, xa_store_index(xa, 1, GFP_KERNEL) != NULL); |
bd54211b8 XArray tests: RCU... |
116 117 |
rcu_read_lock(); |
b803b4282 xarray: Add XArra... |
118 119 120 121 122 123 124 125 126 127 128 129 130 131 |
XA_BUG_ON(xa, !xa_is_internal(xas_reload(&xas))); xas.xa_node = XAS_RESTART; XA_BUG_ON(xa, xas_next_entry(&xas, ULONG_MAX) != xa_mk_value(0)); rcu_read_unlock(); /* Make sure we can iterate through retry entries */ xas_lock(&xas); xas_set(&xas, 0); xas_store(&xas, XA_RETRY_ENTRY); xas_set(&xas, 1); xas_store(&xas, XA_RETRY_ENTRY); xas_set(&xas, 0); xas_for_each(&xas, entry, ULONG_MAX) { |
b7677a132 XArray tests: Han... |
132 |
xas_store(&xas, xa_mk_index(xas.xa_index)); |
b803b4282 xarray: Add XArra... |
133 134 135 136 137 138 |
} xas_unlock(&xas); xa_erase_index(xa, 0); xa_erase_index(xa, 1); } |
ad3d6c726 xarray: Add XArra... |
139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 |
static noinline void check_xa_load(struct xarray *xa) { unsigned long i, j; for (i = 0; i < 1024; i++) { for (j = 0; j < 1024; j++) { void *entry = xa_load(xa, j); if (j < i) XA_BUG_ON(xa, xa_to_value(entry) != j); else XA_BUG_ON(xa, entry); } XA_BUG_ON(xa, xa_store_index(xa, i, GFP_KERNEL) != NULL); } for (i = 0; i < 1024; i++) { for (j = 0; j < 1024; j++) { void *entry = xa_load(xa, j); if (j >= i) XA_BUG_ON(xa, xa_to_value(entry) != j); else XA_BUG_ON(xa, entry); } xa_erase_index(xa, i); } XA_BUG_ON(xa, !xa_empty(xa)); } |
9b89a0355 xarray: Add XArra... |
166 167 |
static noinline void check_xa_mark_1(struct xarray *xa, unsigned long index) { |
58d6ea308 xarray: Add XArra... |
168 169 |
unsigned int order; unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 8 : 1; |
9b89a0355 xarray: Add XArra... |
170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 |
/* NULL elements have no marks set */ XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_0)); xa_set_mark(xa, index, XA_MARK_0); XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_0)); /* Storing a pointer will not make a mark appear */ XA_BUG_ON(xa, xa_store_index(xa, index, GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_0)); xa_set_mark(xa, index, XA_MARK_0); XA_BUG_ON(xa, !xa_get_mark(xa, index, XA_MARK_0)); /* Setting one mark will not set another mark */ XA_BUG_ON(xa, xa_get_mark(xa, index + 1, XA_MARK_0)); XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_1)); /* Storing NULL clears marks, and they can't be set again */ xa_erase_index(xa, index); XA_BUG_ON(xa, !xa_empty(xa)); XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_0)); xa_set_mark(xa, index, XA_MARK_0); XA_BUG_ON(xa, xa_get_mark(xa, index, XA_MARK_0)); |
58d6ea308 xarray: Add XArra... |
191 192 193 194 195 196 197 198 199 200 201 202 203 204 |
/* * Storing a multi-index entry over entries with marks gives the * entire entry the union of the marks */ BUG_ON((index % 4) != 0); for (order = 2; order < max_order; order++) { unsigned long base = round_down(index, 1UL << order); unsigned long next = base + (1UL << order); unsigned long i; 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)); |
d69d287a9 XArray tests: Che... |
205 |
xa_set_mark(xa, index + 2, XA_MARK_2); |
58d6ea308 xarray: Add XArra... |
206 |
XA_BUG_ON(xa, xa_store_index(xa, next, GFP_KERNEL)); |
b7677a132 XArray tests: Han... |
207 |
xa_store_order(xa, index, order, xa_mk_index(index), |
58d6ea308 xarray: Add XArra... |
208 209 |
GFP_KERNEL); for (i = base; i < next; i++) { |
93eb07f72 xarray: Move mult... |
210 211 212 |
XA_STATE(xas, xa, i); unsigned int seen = 0; void *entry; |
58d6ea308 xarray: Add XArra... |
213 |
XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_0)); |
d69d287a9 XArray tests: Che... |
214 215 |
XA_BUG_ON(xa, xa_get_mark(xa, i, XA_MARK_1)); XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_2)); |
93eb07f72 xarray: Move mult... |
216 217 |
/* We should see two elements in the array */ |
fffc9a260 XArray tests: Add... |
218 |
rcu_read_lock(); |
93eb07f72 xarray: Move mult... |
219 220 |
xas_for_each(&xas, entry, ULONG_MAX) seen++; |
fffc9a260 XArray tests: Add... |
221 |
rcu_read_unlock(); |
93eb07f72 xarray: Move mult... |
222 223 224 225 226 |
XA_BUG_ON(xa, seen != 2); /* One of which is marked */ xas_set(&xas, 0); seen = 0; |
fffc9a260 XArray tests: Add... |
227 |
rcu_read_lock(); |
93eb07f72 xarray: Move mult... |
228 229 |
xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0) seen++; |
fffc9a260 XArray tests: Add... |
230 |
rcu_read_unlock(); |
93eb07f72 xarray: Move mult... |
231 |
XA_BUG_ON(xa, seen != 1); |
58d6ea308 xarray: Add XArra... |
232 233 234 235 236 237 238 239 240 |
} XA_BUG_ON(xa, xa_get_mark(xa, next, XA_MARK_0)); XA_BUG_ON(xa, xa_get_mark(xa, next, XA_MARK_1)); XA_BUG_ON(xa, xa_get_mark(xa, next, XA_MARK_2)); xa_erase_index(xa, index); xa_erase_index(xa, next); XA_BUG_ON(xa, !xa_empty(xa)); } XA_BUG_ON(xa, !xa_empty(xa)); |
9b89a0355 xarray: Add XArra... |
241 |
} |
adb9d9c4c radix tree: Remov... |
242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 |
static noinline void check_xa_mark_2(struct xarray *xa) { XA_STATE(xas, xa, 0); unsigned long index; unsigned int count = 0; void *entry; xa_store_index(xa, 0, GFP_KERNEL); xa_set_mark(xa, 0, XA_MARK_0); xas_lock(&xas); xas_load(&xas); xas_init_marks(&xas); xas_unlock(&xas); XA_BUG_ON(xa, !xa_get_mark(xa, 0, XA_MARK_0) == 0); for (index = 3500; index < 4500; index++) { xa_store_index(xa, index, GFP_KERNEL); xa_set_mark(xa, index, XA_MARK_0); } xas_reset(&xas); rcu_read_lock(); xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0) count++; rcu_read_unlock(); XA_BUG_ON(xa, count != 1000); xas_lock(&xas); xas_for_each(&xas, entry, ULONG_MAX) { xas_init_marks(&xas); XA_BUG_ON(xa, !xa_get_mark(xa, xas.xa_index, XA_MARK_0)); XA_BUG_ON(xa, !xas_get_mark(&xas, XA_MARK_0)); } xas_unlock(&xas); xa_destroy(xa); } |
04e9e9bb8 XArray: Test mark... |
279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 |
static noinline void check_xa_mark_3(struct xarray *xa) { #ifdef CONFIG_XARRAY_MULTI XA_STATE(xas, xa, 0x41); void *entry; int count = 0; xa_store_order(xa, 0x40, 2, xa_mk_index(0x40), GFP_KERNEL); xa_set_mark(xa, 0x41, XA_MARK_0); rcu_read_lock(); xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0) { count++; XA_BUG_ON(xa, entry != xa_mk_index(0x40)); } XA_BUG_ON(xa, count != 1); rcu_read_unlock(); xa_destroy(xa); #endif } |
9b89a0355 xarray: Add XArra... |
299 300 301 302 303 304 |
static noinline void check_xa_mark(struct xarray *xa) { unsigned long index; for (index = 0; index < 16384; index += 4) check_xa_mark_1(xa, index); |
adb9d9c4c radix tree: Remov... |
305 306 |
check_xa_mark_2(xa); |
04e9e9bb8 XArray: Test mark... |
307 |
check_xa_mark_3(xa); |
9b89a0355 xarray: Add XArra... |
308 |
} |
58d6ea308 xarray: Add XArra... |
309 310 311 312 |
static noinline void check_xa_shrink(struct xarray *xa) { XA_STATE(xas, xa, 1); struct xa_node *node; |
93eb07f72 xarray: Move mult... |
313 314 |
unsigned int order; unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 15 : 1; |
58d6ea308 xarray: Add XArra... |
315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 |
XA_BUG_ON(xa, !xa_empty(xa)); XA_BUG_ON(xa, xa_store_index(xa, 0, GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_store_index(xa, 1, GFP_KERNEL) != NULL); /* * Check that erasing the entry at 1 shrinks the tree and properly * marks the node as being deleted. */ xas_lock(&xas); XA_BUG_ON(xa, xas_load(&xas) != xa_mk_value(1)); node = xas.xa_node; XA_BUG_ON(xa, xa_entry_locked(xa, node, 0) != xa_mk_value(0)); XA_BUG_ON(xa, xas_store(&xas, NULL) != xa_mk_value(1)); XA_BUG_ON(xa, xa_load(xa, 1) != NULL); XA_BUG_ON(xa, xas.xa_node != XAS_BOUNDS); XA_BUG_ON(xa, xa_entry_locked(xa, node, 0) != XA_RETRY_ENTRY); XA_BUG_ON(xa, xas_load(&xas) != NULL); xas_unlock(&xas); XA_BUG_ON(xa, xa_load(xa, 0) != xa_mk_value(0)); xa_erase_index(xa, 0); XA_BUG_ON(xa, !xa_empty(xa)); |
93eb07f72 xarray: Move mult... |
337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 |
for (order = 0; order < max_order; order++) { unsigned long max = (1UL << order) - 1; xa_store_order(xa, 0, order, xa_mk_value(0), GFP_KERNEL); XA_BUG_ON(xa, xa_load(xa, max) != xa_mk_value(0)); XA_BUG_ON(xa, xa_load(xa, max + 1) != NULL); rcu_read_lock(); node = xa_head(xa); rcu_read_unlock(); XA_BUG_ON(xa, xa_store_index(xa, ULONG_MAX, GFP_KERNEL) != NULL); rcu_read_lock(); XA_BUG_ON(xa, xa_head(xa) == node); rcu_read_unlock(); XA_BUG_ON(xa, xa_load(xa, max + 1) != NULL); xa_erase_index(xa, ULONG_MAX); XA_BUG_ON(xa, xa->xa_head != node); xa_erase_index(xa, 0); } |
58d6ea308 xarray: Add XArra... |
356 |
} |
12fd2aee6 XArray tests: Add... |
357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 |
static noinline void check_insert(struct xarray *xa) { unsigned long i; for (i = 0; i < 1024; i++) { xa_insert_index(xa, i); XA_BUG_ON(xa, xa_load(xa, i - 1) != NULL); XA_BUG_ON(xa, xa_load(xa, i + 1) != NULL); xa_erase_index(xa, i); } for (i = 10; i < BITS_PER_LONG; i++) { xa_insert_index(xa, 1UL << i); XA_BUG_ON(xa, xa_load(xa, (1UL << i) - 1) != NULL); XA_BUG_ON(xa, xa_load(xa, (1UL << i) + 1) != NULL); xa_erase_index(xa, 1UL << i); xa_insert_index(xa, (1UL << i) - 1); XA_BUG_ON(xa, xa_load(xa, (1UL << i) - 2) != NULL); XA_BUG_ON(xa, xa_load(xa, 1UL << i) != NULL); xa_erase_index(xa, (1UL << i) - 1); } xa_insert_index(xa, ~0UL); XA_BUG_ON(xa, xa_load(xa, 0UL) != NULL); XA_BUG_ON(xa, xa_load(xa, ~1UL) != NULL); xa_erase_index(xa, ~0UL); XA_BUG_ON(xa, !xa_empty(xa)); } |
41aec91f5 xarray: Add XArra... |
387 388 389 390 391 392 393 394 |
static noinline void check_cmpxchg(struct xarray *xa) { void *FIVE = xa_mk_value(5); void *SIX = xa_mk_value(6); void *LOTS = xa_mk_value(12345678); XA_BUG_ON(xa, !xa_empty(xa)); XA_BUG_ON(xa, xa_store_index(xa, 12345678, GFP_KERNEL) != NULL); |
fd9dc93e3 XArray: Change xa... |
395 |
XA_BUG_ON(xa, xa_insert(xa, 12345678, xa, GFP_KERNEL) != -EBUSY); |
41aec91f5 xarray: Add XArra... |
396 397 398 399 400 |
XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, SIX, FIVE, GFP_KERNEL) != LOTS); XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, LOTS, FIVE, GFP_KERNEL) != LOTS); XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, FIVE, LOTS, GFP_KERNEL) != FIVE); XA_BUG_ON(xa, xa_cmpxchg(xa, 5, FIVE, NULL, GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_cmpxchg(xa, 5, NULL, FIVE, GFP_KERNEL) != NULL); |
062b73591 XArray: Test two ... |
401 402 403 |
XA_BUG_ON(xa, xa_insert(xa, 5, FIVE, GFP_KERNEL) != -EBUSY); XA_BUG_ON(xa, xa_cmpxchg(xa, 5, FIVE, NULL, GFP_KERNEL) != FIVE); XA_BUG_ON(xa, xa_insert(xa, 5, FIVE, GFP_KERNEL) == -EBUSY); |
41aec91f5 xarray: Add XArra... |
404 405 406 407 |
xa_erase_index(xa, 12345678); xa_erase_index(xa, 5); XA_BUG_ON(xa, !xa_empty(xa)); } |
9f14d4f1f xarray: Add xa_re... |
408 409 410 |
static noinline void check_reserve(struct xarray *xa) { void *entry; |
4a31896c5 XArray: Change xa... |
411 |
unsigned long index; |
b38f6c502 XArray: Fix xa_re... |
412 |
int count; |
9f14d4f1f xarray: Add xa_re... |
413 414 415 |
/* An array with a reserved entry is not empty */ XA_BUG_ON(xa, !xa_empty(xa)); |
f818b82b8 XArray: Mark xa_i... |
416 |
XA_BUG_ON(xa, xa_reserve(xa, 12345678, GFP_KERNEL) != 0); |
9f14d4f1f xarray: Add xa_re... |
417 418 419 420 421 422 |
XA_BUG_ON(xa, xa_empty(xa)); XA_BUG_ON(xa, xa_load(xa, 12345678)); xa_release(xa, 12345678); XA_BUG_ON(xa, !xa_empty(xa)); /* Releasing a used entry does nothing */ |
f818b82b8 XArray: Mark xa_i... |
423 |
XA_BUG_ON(xa, xa_reserve(xa, 12345678, GFP_KERNEL) != 0); |
9f14d4f1f xarray: Add xa_re... |
424 425 426 427 |
XA_BUG_ON(xa, xa_store_index(xa, 12345678, GFP_NOWAIT) != NULL); xa_release(xa, 12345678); xa_erase_index(xa, 12345678); XA_BUG_ON(xa, !xa_empty(xa)); |
b38f6c502 XArray: Fix xa_re... |
428 |
/* cmpxchg sees a reserved entry as ZERO */ |
f818b82b8 XArray: Mark xa_i... |
429 |
XA_BUG_ON(xa, xa_reserve(xa, 12345678, GFP_KERNEL) != 0); |
b38f6c502 XArray: Fix xa_re... |
430 431 |
XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, XA_ZERO_ENTRY, xa_mk_value(12345678), GFP_NOWAIT) != NULL); |
9f14d4f1f xarray: Add xa_re... |
432 433 434 |
xa_release(xa, 12345678); xa_erase_index(xa, 12345678); XA_BUG_ON(xa, !xa_empty(xa)); |
b38f6c502 XArray: Fix xa_re... |
435 |
/* xa_insert treats it as busy */ |
f818b82b8 XArray: Mark xa_i... |
436 |
XA_BUG_ON(xa, xa_reserve(xa, 12345678, GFP_KERNEL) != 0); |
b0606fed6 XArray: Honour re... |
437 |
XA_BUG_ON(xa, xa_insert(xa, 12345678, xa_mk_value(12345678), 0) != |
fd9dc93e3 XArray: Change xa... |
438 |
-EBUSY); |
b0606fed6 XArray: Honour re... |
439 440 |
XA_BUG_ON(xa, xa_empty(xa)); XA_BUG_ON(xa, xa_erase(xa, 12345678) != NULL); |
4c0608f4a XArray: Regularis... |
441 |
XA_BUG_ON(xa, !xa_empty(xa)); |
9f14d4f1f xarray: Add xa_re... |
442 443 |
/* Can iterate through a reserved entry */ xa_store_index(xa, 5, GFP_KERNEL); |
f818b82b8 XArray: Mark xa_i... |
444 |
XA_BUG_ON(xa, xa_reserve(xa, 6, GFP_KERNEL) != 0); |
9f14d4f1f xarray: Add xa_re... |
445 |
xa_store_index(xa, 7, GFP_KERNEL); |
b38f6c502 XArray: Fix xa_re... |
446 |
count = 0; |
4a31896c5 XArray: Change xa... |
447 |
xa_for_each(xa, index, entry) { |
9f14d4f1f xarray: Add xa_re... |
448 |
XA_BUG_ON(xa, index != 5 && index != 7); |
b38f6c502 XArray: Fix xa_re... |
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 |
count++; } XA_BUG_ON(xa, count != 2); /* If we free a reserved entry, we should be able to allocate it */ if (xa->xa_flags & XA_FLAGS_ALLOC) { u32 id; XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_value(8), XA_LIMIT(5, 10), GFP_KERNEL) != 0); XA_BUG_ON(xa, id != 8); xa_release(xa, 6); XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_value(6), XA_LIMIT(5, 10), GFP_KERNEL) != 0); XA_BUG_ON(xa, id != 6); |
9f14d4f1f xarray: Add xa_re... |
465 |
} |
b38f6c502 XArray: Fix xa_re... |
466 |
|
9f14d4f1f xarray: Add xa_re... |
467 468 |
xa_destroy(xa); } |
b803b4282 xarray: Add XArra... |
469 470 471 472 473 474 475 476 477 478 479 |
static noinline void check_xas_erase(struct xarray *xa) { XA_STATE(xas, xa, 0); void *entry; unsigned long i, j; for (i = 0; i < 200; i++) { for (j = i; j < 2 * i + 17; j++) { xas_set(&xas, j); do { xas_lock(&xas); |
b7677a132 XArray tests: Han... |
480 |
xas_store(&xas, xa_mk_index(j)); |
b803b4282 xarray: Add XArra... |
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 |
xas_unlock(&xas); } while (xas_nomem(&xas, GFP_KERNEL)); } xas_set(&xas, ULONG_MAX); do { xas_lock(&xas); xas_store(&xas, xa_mk_value(0)); xas_unlock(&xas); } while (xas_nomem(&xas, GFP_KERNEL)); xas_lock(&xas); xas_store(&xas, NULL); xas_set(&xas, 0); j = i; xas_for_each(&xas, entry, ULONG_MAX) { |
b7677a132 XArray tests: Han... |
498 |
XA_BUG_ON(xa, entry != xa_mk_index(j)); |
b803b4282 xarray: Add XArra... |
499 500 501 502 503 504 505 |
xas_store(&xas, NULL); j++; } xas_unlock(&xas); XA_BUG_ON(xa, !xa_empty(xa)); } } |
4f06d6302 xarray: Move mult... |
506 507 508 509 510 511 512 |
#ifdef CONFIG_XARRAY_MULTI static noinline void check_multi_store_1(struct xarray *xa, unsigned long index, unsigned int order) { XA_STATE(xas, xa, index); unsigned long min = index & ~((1UL << order) - 1); unsigned long max = min + (1UL << order); |
b7677a132 XArray tests: Han... |
513 514 515 |
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)); |
4f06d6302 xarray: Move mult... |
516 517 |
XA_BUG_ON(xa, xa_load(xa, max) != NULL); XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL); |
fffc9a260 XArray tests: Add... |
518 |
xas_lock(&xas); |
b7677a132 XArray tests: Han... |
519 |
XA_BUG_ON(xa, xas_store(&xas, xa_mk_index(min)) != xa_mk_index(index)); |
fffc9a260 XArray tests: Add... |
520 |
xas_unlock(&xas); |
b7677a132 XArray tests: Han... |
521 522 |
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)); |
4f06d6302 xarray: Move mult... |
523 524 525 526 527 528 529 530 531 532 533 534 |
XA_BUG_ON(xa, xa_load(xa, max) != NULL); XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL); xa_erase_index(xa, min); XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_multi_store_2(struct xarray *xa, unsigned long index, unsigned int order) { XA_STATE(xas, xa, index); xa_store_order(xa, index, order, xa_mk_value(0), GFP_KERNEL); |
fffc9a260 XArray tests: Add... |
535 |
xas_lock(&xas); |
4f06d6302 xarray: Move mult... |
536 537 538 |
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)); |
fffc9a260 XArray tests: Add... |
539 |
xas_unlock(&xas); |
4f06d6302 xarray: Move mult... |
540 541 |
XA_BUG_ON(xa, !xa_empty(xa)); } |
4f145cd66 XArray tests: Che... |
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 |
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); } |
4f06d6302 xarray: Move mult... |
568 |
#endif |
58d6ea308 xarray: Add XArra... |
569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 |
static noinline void check_multi_store(struct xarray *xa) { #ifdef CONFIG_XARRAY_MULTI unsigned long i, j, k; unsigned int max_order = (sizeof(long) == 4) ? 30 : 60; /* Loading from any position returns the same value */ xa_store_order(xa, 0, 1, xa_mk_value(0), GFP_KERNEL); XA_BUG_ON(xa, xa_load(xa, 0) != xa_mk_value(0)); XA_BUG_ON(xa, xa_load(xa, 1) != xa_mk_value(0)); XA_BUG_ON(xa, xa_load(xa, 2) != NULL); rcu_read_lock(); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->count != 2); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->nr_values != 2); rcu_read_unlock(); /* Storing adjacent to the value does not alter the value */ xa_store(xa, 3, xa, GFP_KERNEL); XA_BUG_ON(xa, xa_load(xa, 0) != xa_mk_value(0)); XA_BUG_ON(xa, xa_load(xa, 1) != xa_mk_value(0)); XA_BUG_ON(xa, xa_load(xa, 2) != NULL); rcu_read_lock(); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->count != 3); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->nr_values != 2); rcu_read_unlock(); /* Overwriting multiple indexes works */ xa_store_order(xa, 0, 2, xa_mk_value(1), GFP_KERNEL); XA_BUG_ON(xa, xa_load(xa, 0) != xa_mk_value(1)); XA_BUG_ON(xa, xa_load(xa, 1) != xa_mk_value(1)); XA_BUG_ON(xa, xa_load(xa, 2) != xa_mk_value(1)); XA_BUG_ON(xa, xa_load(xa, 3) != xa_mk_value(1)); XA_BUG_ON(xa, xa_load(xa, 4) != NULL); rcu_read_lock(); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->count != 4); XA_BUG_ON(xa, xa_to_node(xa_head(xa))->nr_values != 4); rcu_read_unlock(); /* We can erase multiple values with a single store */ |
5404a7f1c XArray tests: Cor... |
608 |
xa_store_order(xa, 0, BITS_PER_LONG - 1, NULL, GFP_KERNEL); |
58d6ea308 xarray: Add XArra... |
609 610 611 612 613 614 615 616 617 618 |
XA_BUG_ON(xa, !xa_empty(xa)); /* Even when the first slot is empty but the others aren't */ xa_store_index(xa, 1, GFP_KERNEL); xa_store_index(xa, 2, GFP_KERNEL); xa_store_order(xa, 0, 2, NULL, GFP_KERNEL); XA_BUG_ON(xa, !xa_empty(xa)); for (i = 0; i < max_order; i++) { for (j = 0; j < max_order; j++) { |
b7677a132 XArray tests: Han... |
619 620 |
xa_store_order(xa, 0, i, xa_mk_index(i), GFP_KERNEL); xa_store_order(xa, 0, j, xa_mk_index(j), GFP_KERNEL); |
58d6ea308 xarray: Add XArra... |
621 622 623 624 625 626 |
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 |
b7677a132 XArray tests: Han... |
627 |
XA_BUG_ON(xa, entry != xa_mk_index(j)); |
58d6ea308 xarray: Add XArra... |
628 629 630 631 632 633 |
} xa_erase(xa, 0); XA_BUG_ON(xa, !xa_empty(xa)); } } |
4f06d6302 xarray: Move mult... |
634 635 636 637 638 639 640 |
for (i = 0; i < 20; i++) { check_multi_store_1(xa, 200, i); check_multi_store_1(xa, 0, i); check_multi_store_1(xa, (1UL << i) + 1, i); } check_multi_store_2(xa, 4095, 9); |
4f145cd66 XArray tests: Che... |
641 642 643 644 645 |
for (i = 1; i < 20; i++) { check_multi_store_3(xa, 0, i); check_multi_store_3(xa, 1UL << i, i); } |
58d6ea308 xarray: Add XArra... |
646 647 |
#endif } |
3ccaf57a6 XArray: Add suppo... |
648 |
static noinline void check_xa_alloc_1(struct xarray *xa, unsigned int base) |
371c752dc xarray: Track fre... |
649 650 651 |
{ int i; u32 id; |
3ccaf57a6 XArray: Add suppo... |
652 653 654 |
XA_BUG_ON(xa, !xa_empty(xa)); /* An empty array should assign %base to the first alloc */ xa_alloc_index(xa, base, GFP_KERNEL); |
371c752dc xarray: Track fre... |
655 656 |
/* Erasing it should make the array empty again */ |
3ccaf57a6 XArray: Add suppo... |
657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 |
xa_erase_index(xa, base); XA_BUG_ON(xa, !xa_empty(xa)); /* And it should assign %base again */ xa_alloc_index(xa, base, GFP_KERNEL); /* Allocating and then erasing a lot should not lose base */ for (i = base + 1; i < 2 * XA_CHUNK_SIZE; i++) xa_alloc_index(xa, i, GFP_KERNEL); for (i = base; i < 2 * XA_CHUNK_SIZE; i++) xa_erase_index(xa, i); xa_alloc_index(xa, base, GFP_KERNEL); /* Destroying the array should do the same as erasing */ xa_destroy(xa); |
371c752dc xarray: Track fre... |
672 |
|
3ccaf57a6 XArray: Add suppo... |
673 674 |
/* And it should assign %base again */ xa_alloc_index(xa, base, GFP_KERNEL); |
371c752dc xarray: Track fre... |
675 |
|
3ccaf57a6 XArray: Add suppo... |
676 677 678 |
/* The next assigned ID should be base+1 */ xa_alloc_index(xa, base + 1, GFP_KERNEL); xa_erase_index(xa, base + 1); |
371c752dc xarray: Track fre... |
679 680 |
/* Storing a value should mark it used */ |
3ccaf57a6 XArray: Add suppo... |
681 682 |
xa_store_index(xa, base + 1, GFP_KERNEL); xa_alloc_index(xa, base + 2, GFP_KERNEL); |
371c752dc xarray: Track fre... |
683 |
|
3ccaf57a6 XArray: Add suppo... |
684 685 686 |
/* If we then erase base, it should be free */ xa_erase_index(xa, base); xa_alloc_index(xa, base, GFP_KERNEL); |
371c752dc xarray: Track fre... |
687 |
|
3ccaf57a6 XArray: Add suppo... |
688 689 |
xa_erase_index(xa, base + 1); xa_erase_index(xa, base + 2); |
371c752dc xarray: Track fre... |
690 691 |
for (i = 1; i < 5000; i++) { |
3ccaf57a6 XArray: Add suppo... |
692 |
xa_alloc_index(xa, base + i, GFP_KERNEL); |
371c752dc xarray: Track fre... |
693 |
} |
3ccaf57a6 XArray: Add suppo... |
694 |
xa_destroy(xa); |
371c752dc xarray: Track fre... |
695 |
|
3ccaf57a6 XArray: Add suppo... |
696 |
/* Check that we fail properly at the limit of allocation */ |
a3e4d3f97 XArray: Redesign ... |
697 698 |
XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(UINT_MAX - 1), XA_LIMIT(UINT_MAX - 1, UINT_MAX), |
371c752dc xarray: Track fre... |
699 |
GFP_KERNEL) != 0); |
3ccaf57a6 XArray: Add suppo... |
700 |
XA_BUG_ON(xa, id != 0xfffffffeU); |
a3e4d3f97 XArray: Redesign ... |
701 702 |
XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(UINT_MAX), XA_LIMIT(UINT_MAX - 1, UINT_MAX), |
371c752dc xarray: Track fre... |
703 |
GFP_KERNEL) != 0); |
3ccaf57a6 XArray: Add suppo... |
704 |
XA_BUG_ON(xa, id != 0xffffffffU); |
a3e4d3f97 XArray: Redesign ... |
705 706 707 708 709 |
id = 3; XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(0), XA_LIMIT(UINT_MAX - 1, UINT_MAX), GFP_KERNEL) != -EBUSY); XA_BUG_ON(xa, id != 3); |
3ccaf57a6 XArray: Add suppo... |
710 |
xa_destroy(xa); |
48483614d XArray: Fix xa_al... |
711 |
|
a3e4d3f97 XArray: Redesign ... |
712 713 |
XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(10), XA_LIMIT(10, 5), GFP_KERNEL) != -EBUSY); |
3ccaf57a6 XArray: Add suppo... |
714 |
XA_BUG_ON(xa, xa_store_index(xa, 3, GFP_KERNEL) != 0); |
a3e4d3f97 XArray: Redesign ... |
715 716 |
XA_BUG_ON(xa, xa_alloc(xa, &id, xa_mk_index(10), XA_LIMIT(10, 5), GFP_KERNEL) != -EBUSY); |
3ccaf57a6 XArray: Add suppo... |
717 718 719 |
xa_erase_index(xa, 3); XA_BUG_ON(xa, !xa_empty(xa)); } |
a3e4d3f97 XArray: Redesign ... |
720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 |
static noinline void check_xa_alloc_2(struct xarray *xa, unsigned int base) { unsigned int i, id; unsigned long index; void *entry; /* Allocate and free a NULL and check xa_empty() behaves */ XA_BUG_ON(xa, !xa_empty(xa)); XA_BUG_ON(xa, xa_alloc(xa, &id, NULL, xa_limit_32b, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != base); XA_BUG_ON(xa, xa_empty(xa)); XA_BUG_ON(xa, xa_erase(xa, id) != NULL); XA_BUG_ON(xa, !xa_empty(xa)); /* Ditto, but check destroy instead of erase */ XA_BUG_ON(xa, !xa_empty(xa)); XA_BUG_ON(xa, xa_alloc(xa, &id, NULL, xa_limit_32b, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != base); XA_BUG_ON(xa, xa_empty(xa)); xa_destroy(xa); XA_BUG_ON(xa, !xa_empty(xa)); for (i = base; i < base + 10; i++) { XA_BUG_ON(xa, xa_alloc(xa, &id, NULL, xa_limit_32b, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != i); } XA_BUG_ON(xa, xa_store(xa, 3, xa_mk_index(3), GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_store(xa, 4, xa_mk_index(4), GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_store(xa, 4, NULL, GFP_KERNEL) != xa_mk_index(4)); XA_BUG_ON(xa, xa_erase(xa, 5) != NULL); XA_BUG_ON(xa, xa_alloc(xa, &id, NULL, xa_limit_32b, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != 5); xa_for_each(xa, index, entry) { xa_erase_index(xa, index); } for (i = base; i < base + 9; i++) { XA_BUG_ON(xa, xa_erase(xa, i) != NULL); XA_BUG_ON(xa, xa_empty(xa)); } XA_BUG_ON(xa, xa_erase(xa, 8) != NULL); XA_BUG_ON(xa, xa_empty(xa)); XA_BUG_ON(xa, xa_erase(xa, base + 9) != NULL); XA_BUG_ON(xa, !xa_empty(xa)); xa_destroy(xa); } |
2fa044e51 XArray: Add cycli... |
770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 |
static noinline void check_xa_alloc_3(struct xarray *xa, unsigned int base) { struct xa_limit limit = XA_LIMIT(1, 0x3fff); u32 next = 0; unsigned int i, id; unsigned long index; void *entry; XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, xa_mk_index(1), limit, &next, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != 1); next = 0x3ffd; XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, xa_mk_index(0x3ffd), limit, &next, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != 0x3ffd); xa_erase_index(xa, 0x3ffd); xa_erase_index(xa, 1); XA_BUG_ON(xa, !xa_empty(xa)); for (i = 0x3ffe; i < 0x4003; i++) { if (i < 0x4000) entry = xa_mk_index(i); else entry = xa_mk_index(i - 0x3fff); XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, entry, limit, &next, GFP_KERNEL) != (id == 1)); XA_BUG_ON(xa, xa_mk_index(id) != entry); } /* Check wrap-around is handled correctly */ if (base != 0) xa_erase_index(xa, base); xa_erase_index(xa, base + 1); next = UINT_MAX; XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, xa_mk_index(UINT_MAX), xa_limit_32b, &next, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != UINT_MAX); XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, xa_mk_index(base), xa_limit_32b, &next, GFP_KERNEL) != 1); XA_BUG_ON(xa, id != base); XA_BUG_ON(xa, xa_alloc_cyclic(xa, &id, xa_mk_index(base + 1), xa_limit_32b, &next, GFP_KERNEL) != 0); XA_BUG_ON(xa, id != base + 1); xa_for_each(xa, index, entry) xa_erase_index(xa, index); XA_BUG_ON(xa, !xa_empty(xa)); } |
3ccaf57a6 XArray: Add suppo... |
820 821 822 823 824 825 826 |
static DEFINE_XARRAY_ALLOC(xa0); static DEFINE_XARRAY_ALLOC1(xa1); static noinline void check_xa_alloc(void) { check_xa_alloc_1(&xa0, 0); check_xa_alloc_1(&xa1, 1); |
a3e4d3f97 XArray: Redesign ... |
827 828 |
check_xa_alloc_2(&xa0, 0); check_xa_alloc_2(&xa1, 1); |
2fa044e51 XArray: Add cycli... |
829 830 |
check_xa_alloc_3(&xa0, 0); check_xa_alloc_3(&xa1, 1); |
371c752dc xarray: Track fre... |
831 |
} |
4e99d4e95 xarray: Add xas_f... |
832 833 834 835 836 837 838 839 840 841 842 |
static noinline void __check_store_iter(struct xarray *xa, unsigned long start, unsigned int order, unsigned int present) { XA_STATE_ORDER(xas, xa, start, order); void *entry; unsigned int count = 0; retry: xas_lock(&xas); xas_for_each_conflict(&xas, entry) { XA_BUG_ON(xa, !xa_is_value(entry)); |
b7677a132 XArray tests: Han... |
843 844 |
XA_BUG_ON(xa, entry < xa_mk_index(start)); XA_BUG_ON(xa, entry > xa_mk_index(start + (1UL << order) - 1)); |
4e99d4e95 xarray: Add xas_f... |
845 846 |
count++; } |
b7677a132 XArray tests: Han... |
847 |
xas_store(&xas, xa_mk_index(start)); |
4e99d4e95 xarray: Add xas_f... |
848 849 850 851 852 853 854 |
xas_unlock(&xas); if (xas_nomem(&xas, GFP_KERNEL)) { count = 0; goto retry; } XA_BUG_ON(xa, xas_error(&xas)); XA_BUG_ON(xa, count != present); |
b7677a132 XArray tests: Han... |
855 |
XA_BUG_ON(xa, xa_load(xa, start) != xa_mk_index(start)); |
4e99d4e95 xarray: Add xas_f... |
856 |
XA_BUG_ON(xa, xa_load(xa, start + (1UL << order) - 1) != |
b7677a132 XArray tests: Han... |
857 |
xa_mk_index(start)); |
4e99d4e95 xarray: Add xas_f... |
858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 |
xa_erase_index(xa, start); } static noinline void check_store_iter(struct xarray *xa) { unsigned int i, j; unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 20 : 1; for (i = 0; i < max_order; i++) { unsigned int min = 1 << i; unsigned int max = (2 << i) - 1; __check_store_iter(xa, 0, i, 0); XA_BUG_ON(xa, !xa_empty(xa)); __check_store_iter(xa, min, i, 0); XA_BUG_ON(xa, !xa_empty(xa)); xa_store_index(xa, min, GFP_KERNEL); __check_store_iter(xa, min, i, 1); XA_BUG_ON(xa, !xa_empty(xa)); xa_store_index(xa, max, GFP_KERNEL); __check_store_iter(xa, min, i, 1); XA_BUG_ON(xa, !xa_empty(xa)); for (j = 0; j < min; j++) xa_store_index(xa, j, GFP_KERNEL); __check_store_iter(xa, 0, i, min); XA_BUG_ON(xa, !xa_empty(xa)); for (j = 0; j < min; j++) xa_store_index(xa, min + j, GFP_KERNEL); __check_store_iter(xa, min, i, min); XA_BUG_ON(xa, !xa_empty(xa)); } #ifdef CONFIG_XARRAY_MULTI xa_store_index(xa, 63, GFP_KERNEL); xa_store_index(xa, 65, GFP_KERNEL); __check_store_iter(xa, 64, 2, 1); xa_erase_index(xa, 63); #endif XA_BUG_ON(xa, !xa_empty(xa)); } |
19c30f4dd XArray: Fix xa_fi... |
898 |
static noinline void check_multi_find_1(struct xarray *xa, unsigned order) |
b803b4282 xarray: Add XArra... |
899 900 |
{ #ifdef CONFIG_XARRAY_MULTI |
19c30f4dd XArray: Fix xa_fi... |
901 902 |
unsigned long multi = 3 << order; unsigned long next = 4 << order; |
b803b4282 xarray: Add XArra... |
903 |
unsigned long index; |
19c30f4dd XArray: Fix xa_fi... |
904 905 |
xa_store_order(xa, multi, order, xa_mk_value(multi), GFP_KERNEL); XA_BUG_ON(xa, xa_store_index(xa, next, GFP_KERNEL) != NULL); |
c44aa5e8a XArray: Fix xas_f... |
906 |
XA_BUG_ON(xa, xa_store_index(xa, next + 1, GFP_KERNEL) != NULL); |
b803b4282 xarray: Add XArra... |
907 908 909 |
index = 0; XA_BUG_ON(xa, xa_find(xa, &index, ULONG_MAX, XA_PRESENT) != |
19c30f4dd XArray: Fix xa_fi... |
910 911 912 |
xa_mk_value(multi)); XA_BUG_ON(xa, index != multi); index = multi + 1; |
b803b4282 xarray: Add XArra... |
913 |
XA_BUG_ON(xa, xa_find(xa, &index, ULONG_MAX, XA_PRESENT) != |
19c30f4dd XArray: Fix xa_fi... |
914 915 |
xa_mk_value(multi)); XA_BUG_ON(xa, (index < multi) || (index >= next)); |
b803b4282 xarray: Add XArra... |
916 |
XA_BUG_ON(xa, xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT) != |
19c30f4dd XArray: Fix xa_fi... |
917 918 |
xa_mk_value(next)); XA_BUG_ON(xa, index != next); |
c44aa5e8a XArray: Fix xas_f... |
919 920 |
XA_BUG_ON(xa, xa_find_after(xa, &index, next, XA_PRESENT) != NULL); XA_BUG_ON(xa, index != next); |
b803b4282 xarray: Add XArra... |
921 |
|
19c30f4dd XArray: Fix xa_fi... |
922 923 |
xa_erase_index(xa, multi); xa_erase_index(xa, next); |
c44aa5e8a XArray: Fix xas_f... |
924 |
xa_erase_index(xa, next + 1); |
b803b4282 xarray: Add XArra... |
925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 |
XA_BUG_ON(xa, !xa_empty(xa)); #endif } static noinline void check_multi_find_2(struct xarray *xa) { unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 10 : 1; unsigned int i, j; void *entry; for (i = 0; i < max_order; i++) { unsigned long index = 1UL << i; for (j = 0; j < index; j++) { XA_STATE(xas, xa, j + index); xa_store_index(xa, index - 1, GFP_KERNEL); |
b7677a132 XArray tests: Han... |
940 |
xa_store_order(xa, index, i, xa_mk_index(index), |
b803b4282 xarray: Add XArra... |
941 942 943 944 945 946 947 948 949 950 951 |
GFP_KERNEL); rcu_read_lock(); xas_for_each(&xas, entry, ULONG_MAX) { xa_erase_index(xa, index); } rcu_read_unlock(); xa_erase_index(xa, index - 1); XA_BUG_ON(xa, !xa_empty(xa)); } } } |
bd40b17ca XArray: Fix xa_fi... |
952 953 954 955 956 957 958 959 960 961 962 963 964 |
static noinline void check_multi_find_3(struct xarray *xa) { unsigned int order; for (order = 5; order < order_limit; order++) { unsigned long index = 1UL << (order - 5); XA_BUG_ON(xa, !xa_empty(xa)); xa_store_order(xa, 0, order - 4, xa_mk_index(0), GFP_KERNEL); XA_BUG_ON(xa, xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT)); xa_erase_index(xa, 0); } } |
8229706e0 XArray: Fix xa_fo... |
965 |
static noinline void check_find_1(struct xarray *xa) |
b803b4282 xarray: Add XArra... |
966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 |
{ unsigned long i, j, k; XA_BUG_ON(xa, !xa_empty(xa)); /* * Check xa_find with all pairs between 0 and 99 inclusive, * starting at every index between 0 and 99 */ for (i = 0; i < 100; i++) { XA_BUG_ON(xa, xa_store_index(xa, i, GFP_KERNEL) != NULL); xa_set_mark(xa, i, XA_MARK_0); for (j = 0; j < i; j++) { XA_BUG_ON(xa, xa_store_index(xa, j, GFP_KERNEL) != NULL); xa_set_mark(xa, j, XA_MARK_0); for (k = 0; k < 100; k++) { unsigned long index = k; void *entry = xa_find(xa, &index, ULONG_MAX, XA_PRESENT); if (k <= j) XA_BUG_ON(xa, index != j); else if (k <= i) XA_BUG_ON(xa, index != i); else XA_BUG_ON(xa, entry != NULL); index = k; entry = xa_find(xa, &index, ULONG_MAX, XA_MARK_0); if (k <= j) XA_BUG_ON(xa, index != j); else if (k <= i) XA_BUG_ON(xa, index != i); else XA_BUG_ON(xa, entry != NULL); } xa_erase_index(xa, j); XA_BUG_ON(xa, xa_get_mark(xa, j, XA_MARK_0)); XA_BUG_ON(xa, !xa_get_mark(xa, i, XA_MARK_0)); } xa_erase_index(xa, i); XA_BUG_ON(xa, xa_get_mark(xa, i, XA_MARK_0)); } XA_BUG_ON(xa, !xa_empty(xa)); |
8229706e0 XArray: Fix xa_fo... |
1011 1012 1013 1014 1015 |
} static noinline void check_find_2(struct xarray *xa) { void *entry; |
4a31896c5 XArray: Change xa... |
1016 |
unsigned long i, j, index; |
8229706e0 XArray: Fix xa_fo... |
1017 |
|
4a31896c5 XArray: Change xa... |
1018 |
xa_for_each(xa, index, entry) { |
8229706e0 XArray: Fix xa_fo... |
1019 1020 1021 1022 1023 1024 |
XA_BUG_ON(xa, true); } for (i = 0; i < 1024; i++) { xa_store_index(xa, index, GFP_KERNEL); j = 0; |
4a31896c5 XArray: Change xa... |
1025 |
xa_for_each(xa, index, entry) { |
b7677a132 XArray tests: Han... |
1026 |
XA_BUG_ON(xa, xa_mk_index(index) != entry); |
8229706e0 XArray: Fix xa_fo... |
1027 1028 1029 1030 1031 1032 |
XA_BUG_ON(xa, index != j++); } } xa_destroy(xa); } |
48483614d XArray: Fix xa_al... |
1033 1034 1035 1036 1037 1038 1039 1040 |
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++) { |
490fd30f8 XArray tests: Add... |
1041 |
rcu_read_lock(); |
48483614d XArray: Fix xa_al... |
1042 1043 1044 1045 1046 1047 1048 1049 |
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); } |
490fd30f8 XArray tests: Add... |
1050 |
rcu_read_unlock(); |
48483614d XArray: Fix xa_al... |
1051 1052 1053 1054 1055 1056 |
} xa_store_index(xa, i, GFP_KERNEL); xa_set_mark(xa, i, XA_MARK_0); } xa_destroy(xa); } |
430f24f94 XArray: Fix infin... |
1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 |
static noinline void check_find_4(struct xarray *xa) { unsigned long index = 0; void *entry; xa_store_index(xa, ULONG_MAX, GFP_KERNEL); entry = xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT); XA_BUG_ON(xa, entry != xa_mk_index(ULONG_MAX)); entry = xa_find_after(xa, &index, ULONG_MAX, XA_PRESENT); XA_BUG_ON(xa, entry); xa_erase_index(xa, ULONG_MAX); } |
8229706e0 XArray: Fix xa_fo... |
1072 1073 |
static noinline void check_find(struct xarray *xa) { |
19c30f4dd XArray: Fix xa_fi... |
1074 |
unsigned i; |
8229706e0 XArray: Fix xa_fo... |
1075 1076 |
check_find_1(xa); check_find_2(xa); |
48483614d XArray: Fix xa_al... |
1077 |
check_find_3(xa); |
430f24f94 XArray: Fix infin... |
1078 |
check_find_4(xa); |
19c30f4dd XArray: Fix xa_fi... |
1079 1080 1081 |
for (i = 2; i < 10; i++) check_multi_find_1(xa, i); |
b803b4282 xarray: Add XArra... |
1082 |
check_multi_find_2(xa); |
bd40b17ca XArray: Fix xa_fi... |
1083 |
check_multi_find_3(xa); |
b803b4282 xarray: Add XArra... |
1084 |
} |
e21a29552 shmem: Convert fi... |
1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 |
/* See find_swap_entry() in mm/shmem.c */ static noinline unsigned long xa_find_entry(struct xarray *xa, void *item) { XA_STATE(xas, xa, 0); unsigned int checked = 0; void *entry; rcu_read_lock(); xas_for_each(&xas, entry, ULONG_MAX) { if (xas_retry(&xas, entry)) continue; if (entry == item) break; checked++; if ((checked % 4) != 0) continue; xas_pause(&xas); } rcu_read_unlock(); return entry ? xas.xa_index : -1; } static noinline void check_find_entry(struct xarray *xa) { #ifdef CONFIG_XARRAY_MULTI unsigned int order; unsigned long offset, index; for (order = 0; order < 20; order++) { for (offset = 0; offset < (1UL << (order + 3)); offset += (1UL << order)) { for (index = 0; index < (1UL << (order + 5)); index += (1UL << order)) { xa_store_order(xa, index, order, |
b7677a132 XArray tests: Han... |
1120 |
xa_mk_index(index), GFP_KERNEL); |
e21a29552 shmem: Convert fi... |
1121 |
XA_BUG_ON(xa, xa_load(xa, index) != |
b7677a132 XArray tests: Han... |
1122 |
xa_mk_index(index)); |
e21a29552 shmem: Convert fi... |
1123 |
XA_BUG_ON(xa, xa_find_entry(xa, |
b7677a132 XArray tests: Han... |
1124 |
xa_mk_index(index)) != index); |
e21a29552 shmem: Convert fi... |
1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 |
} XA_BUG_ON(xa, xa_find_entry(xa, xa) != -1); xa_destroy(xa); } } #endif 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); |
b7677a132 XArray tests: Han... |
1135 |
XA_BUG_ON(xa, xa_find_entry(xa, xa_mk_index(ULONG_MAX)) != -1); |
e21a29552 shmem: Convert fi... |
1136 1137 1138 |
xa_erase_index(xa, ULONG_MAX); XA_BUG_ON(xa, !xa_empty(xa)); } |
c36d451ad XArray: Fix xas_p... |
1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 |
static noinline void check_pause(struct xarray *xa) { XA_STATE(xas, xa, 0); void *entry; unsigned int order; unsigned long index = 1; unsigned int count = 0; for (order = 0; order < order_limit; order++) { XA_BUG_ON(xa, xa_store_order(xa, index, order, xa_mk_index(index), GFP_KERNEL)); index += 1UL << order; } rcu_read_lock(); xas_for_each(&xas, entry, ULONG_MAX) { XA_BUG_ON(xa, entry != xa_mk_index(1UL << count)); count++; } rcu_read_unlock(); XA_BUG_ON(xa, count != order_limit); count = 0; xas_set(&xas, 0); rcu_read_lock(); xas_for_each(&xas, entry, ULONG_MAX) { XA_BUG_ON(xa, entry != xa_mk_index(1UL << count)); count++; xas_pause(&xas); } rcu_read_unlock(); XA_BUG_ON(xa, count != order_limit); xa_destroy(xa); } |
91abab838 XArray: Fix xas_n... |
1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 |
static noinline void check_move_tiny(struct xarray *xa) { XA_STATE(xas, xa, 0); XA_BUG_ON(xa, !xa_empty(xa)); rcu_read_lock(); XA_BUG_ON(xa, xas_next(&xas) != NULL); XA_BUG_ON(xa, xas_next(&xas) != NULL); rcu_read_unlock(); xa_store_index(xa, 0, GFP_KERNEL); rcu_read_lock(); xas_set(&xas, 0); XA_BUG_ON(xa, xas_next(&xas) != xa_mk_index(0)); XA_BUG_ON(xa, xas_next(&xas) != NULL); xas_set(&xas, 0); XA_BUG_ON(xa, xas_prev(&xas) != xa_mk_index(0)); XA_BUG_ON(xa, xas_prev(&xas) != NULL); rcu_read_unlock(); xa_erase_index(xa, 0); XA_BUG_ON(xa, !xa_empty(xa)); } |
82a22311b XArray: Fix xas_p... |
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 |
static noinline void check_move_max(struct xarray *xa) { XA_STATE(xas, xa, 0); xa_store_index(xa, ULONG_MAX, GFP_KERNEL); rcu_read_lock(); XA_BUG_ON(xa, xas_find(&xas, ULONG_MAX) != xa_mk_index(ULONG_MAX)); XA_BUG_ON(xa, xas_find(&xas, ULONG_MAX) != NULL); rcu_read_unlock(); xas_set(&xas, 0); rcu_read_lock(); XA_BUG_ON(xa, xas_find(&xas, ULONG_MAX) != xa_mk_index(ULONG_MAX)); xas_pause(&xas); XA_BUG_ON(xa, xas_find(&xas, ULONG_MAX) != NULL); rcu_read_unlock(); xa_erase_index(xa, ULONG_MAX); XA_BUG_ON(xa, !xa_empty(xa)); } |
64d3e9a9e xarray: Step thro... |
1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 |
static noinline void check_move_small(struct xarray *xa, unsigned long idx) { XA_STATE(xas, xa, 0); unsigned long i; xa_store_index(xa, 0, GFP_KERNEL); xa_store_index(xa, idx, GFP_KERNEL); rcu_read_lock(); for (i = 0; i < idx * 4; i++) { void *entry = xas_next(&xas); if (i <= idx) XA_BUG_ON(xa, xas.xa_node == XAS_RESTART); XA_BUG_ON(xa, xas.xa_index != i); if (i == 0 || i == idx) |
b7677a132 XArray tests: Han... |
1230 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 |
else XA_BUG_ON(xa, entry != NULL); } xas_next(&xas); XA_BUG_ON(xa, xas.xa_index != i); do { void *entry = xas_prev(&xas); i--; if (i <= idx) XA_BUG_ON(xa, xas.xa_node == XAS_RESTART); XA_BUG_ON(xa, xas.xa_index != i); if (i == 0 || i == idx) |
b7677a132 XArray tests: Han... |
1244 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 |
else XA_BUG_ON(xa, entry != NULL); } while (i > 0); xas_set(&xas, ULONG_MAX); XA_BUG_ON(xa, xas_next(&xas) != NULL); XA_BUG_ON(xa, xas.xa_index != ULONG_MAX); XA_BUG_ON(xa, xas_next(&xas) != xa_mk_value(0)); XA_BUG_ON(xa, xas.xa_index != 0); XA_BUG_ON(xa, xas_prev(&xas) != NULL); XA_BUG_ON(xa, xas.xa_index != ULONG_MAX); rcu_read_unlock(); xa_erase_index(xa, 0); xa_erase_index(xa, idx); XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_move(struct xarray *xa) { XA_STATE(xas, xa, (1 << 16) - 1); unsigned long i; for (i = 0; i < (1 << 16); i++) XA_BUG_ON(xa, xa_store_index(xa, i, GFP_KERNEL) != NULL); rcu_read_lock(); do { void *entry = xas_prev(&xas); i--; |
b7677a132 XArray tests: Han... |
1275 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1276 1277 1278 1279 1280 1281 1282 1283 |
XA_BUG_ON(xa, i != xas.xa_index); } while (i != 0); XA_BUG_ON(xa, xas_prev(&xas) != NULL); XA_BUG_ON(xa, xas.xa_index != ULONG_MAX); do { void *entry = xas_next(&xas); |
b7677a132 XArray tests: Han... |
1284 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 |
XA_BUG_ON(xa, i != xas.xa_index); i++; } while (i < (1 << 16)); rcu_read_unlock(); for (i = (1 << 8); i < (1 << 15); i++) xa_erase_index(xa, i); i = xas.xa_index; rcu_read_lock(); do { void *entry = xas_prev(&xas); i--; if ((i < (1 << 8)) || (i >= (1 << 15))) |
b7677a132 XArray tests: Han... |
1300 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 |
else XA_BUG_ON(xa, entry != NULL); XA_BUG_ON(xa, i != xas.xa_index); } while (i != 0); XA_BUG_ON(xa, xas_prev(&xas) != NULL); XA_BUG_ON(xa, xas.xa_index != ULONG_MAX); do { void *entry = xas_next(&xas); if ((i < (1 << 8)) || (i >= (1 << 15))) |
b7677a132 XArray tests: Han... |
1312 |
XA_BUG_ON(xa, entry != xa_mk_index(i)); |
64d3e9a9e xarray: Step thro... |
1313 1314 1315 1316 1317 1318 1319 1320 |
else XA_BUG_ON(xa, entry != NULL); XA_BUG_ON(xa, i != xas.xa_index); i++; } while (i < (1 << 16)); rcu_read_unlock(); xa_destroy(xa); |
91abab838 XArray: Fix xas_n... |
1321 |
check_move_tiny(xa); |
82a22311b XArray: Fix xas_p... |
1322 |
check_move_max(xa); |
91abab838 XArray: Fix xas_n... |
1323 |
|
64d3e9a9e xarray: Step thro... |
1324 1325 1326 1327 1328 1329 |
for (i = 0; i < 16; i++) check_move_small(xa, 1UL << i); for (i = 2; i < 16; i++) check_move_small(xa, (1UL << i) - 1); } |
2264f5132 xarray: Add xas_c... |
1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 |
static noinline void xa_store_many_order(struct xarray *xa, unsigned long index, unsigned order) { XA_STATE_ORDER(xas, xa, index, order); unsigned int i = 0; do { xas_lock(&xas); XA_BUG_ON(xa, xas_find_conflict(&xas)); xas_create_range(&xas); if (xas_error(&xas)) goto unlock; for (i = 0; i < (1U << order); i++) { |
b7677a132 XArray tests: Han... |
1343 |
XA_BUG_ON(xa, xas_store(&xas, xa_mk_index(index + i))); |
2264f5132 xarray: Add xas_c... |
1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 |
xas_next(&xas); } unlock: xas_unlock(&xas); } while (xas_nomem(&xas, GFP_KERNEL)); XA_BUG_ON(xa, xas_error(&xas)); } static noinline void check_create_range_1(struct xarray *xa, unsigned long index, unsigned order) { unsigned long i; xa_store_many_order(xa, index, order); for (i = index; i < index + (1UL << order); i++) xa_erase_index(xa, i); XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_create_range_2(struct xarray *xa, unsigned order) { unsigned long i; unsigned long nr = 1UL << order; for (i = 0; i < nr * nr; i += nr) xa_store_many_order(xa, i, order); for (i = 0; i < nr * nr; i++) xa_erase_index(xa, i); XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_create_range_3(void) { XA_STATE(xas, NULL, 0); xas_set_err(&xas, -EEXIST); xas_create_range(&xas); XA_BUG_ON(NULL, xas_error(&xas) != -EEXIST); } static noinline void check_create_range_4(struct xarray *xa, unsigned long index, unsigned order) { XA_STATE_ORDER(xas, xa, index, order); unsigned long base = xas.xa_index; unsigned long i = 0; xa_store_index(xa, index, GFP_KERNEL); do { xas_lock(&xas); xas_create_range(&xas); if (xas_error(&xas)) goto unlock; for (i = 0; i < (1UL << order); i++) { |
b7677a132 XArray tests: Han... |
1398 |
void *old = xas_store(&xas, xa_mk_index(base + i)); |
2264f5132 xarray: Add xas_c... |
1399 |
if (xas.xa_index == index) |
b7677a132 XArray tests: Han... |
1400 |
XA_BUG_ON(xa, old != xa_mk_index(base + i)); |
2264f5132 xarray: Add xas_c... |
1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 |
else XA_BUG_ON(xa, old != NULL); xas_next(&xas); } unlock: xas_unlock(&xas); } while (xas_nomem(&xas, GFP_KERNEL)); XA_BUG_ON(xa, xas_error(&xas)); for (i = base; i < base + (1UL << order); i++) xa_erase_index(xa, i); XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_create_range(struct xarray *xa) { unsigned int order; unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 12 : 1; for (order = 0; order < max_order; order++) { check_create_range_1(xa, 0, order); check_create_range_1(xa, 1U << order, order); check_create_range_1(xa, 2U << order, order); check_create_range_1(xa, 3U << order, order); check_create_range_1(xa, 1U << 24, order); if (order < 10) check_create_range_2(xa, order); check_create_range_4(xa, 0, order); check_create_range_4(xa, 1U << order, order); check_create_range_4(xa, 2U << order, order); check_create_range_4(xa, 3U << order, order); check_create_range_4(xa, 1U << 24, order); check_create_range_4(xa, 1, order); check_create_range_4(xa, (1U << order) + 1, order); check_create_range_4(xa, (2U << order) + 1, order); check_create_range_4(xa, (2U << order) - 1, order); check_create_range_4(xa, (3U << order) + 1, order); check_create_range_4(xa, (3U << order) - 1, order); check_create_range_4(xa, (1U << 24) + 1, order); } check_create_range_3(); } |
0e9446c35 xarray: Add range... |
1447 1448 1449 1450 |
static noinline void __check_store_range(struct xarray *xa, unsigned long first, unsigned long last) { #ifdef CONFIG_XARRAY_MULTI |
b7677a132 XArray tests: Han... |
1451 |
xa_store_range(xa, first, last, xa_mk_index(first), GFP_KERNEL); |
0e9446c35 xarray: Add range... |
1452 |
|
b7677a132 XArray tests: Han... |
1453 1454 |
XA_BUG_ON(xa, xa_load(xa, first) != xa_mk_index(first)); XA_BUG_ON(xa, xa_load(xa, last) != xa_mk_index(first)); |
0e9446c35 xarray: Add range... |
1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 |
XA_BUG_ON(xa, xa_load(xa, first - 1) != NULL); XA_BUG_ON(xa, xa_load(xa, last + 1) != NULL); xa_store_range(xa, first, last, NULL, GFP_KERNEL); #endif XA_BUG_ON(xa, !xa_empty(xa)); } static noinline void check_store_range(struct xarray *xa) { unsigned long i, j; for (i = 0; i < 128; i++) { for (j = i; j < 128; j++) { __check_store_range(xa, i, j); __check_store_range(xa, 128 + i, 128 + j); __check_store_range(xa, 4095 + i, 4095 + j); __check_store_range(xa, 4096 + i, 4096 + j); __check_store_range(xa, 123456 + i, 123456 + j); |
5404a7f1c XArray tests: Cor... |
1475 |
__check_store_range(xa, (1 << 24) + i, (1 << 24) + j); |
0e9446c35 xarray: Add range... |
1476 1477 1478 |
} } } |
8fc75643c XArray: add xas_s... |
1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 |
#ifdef CONFIG_XARRAY_MULTI static void check_split_1(struct xarray *xa, unsigned long index, unsigned int order) { XA_STATE(xas, xa, index); void *entry; unsigned int i = 0; xa_store_order(xa, index, order, xa, GFP_KERNEL); xas_split_alloc(&xas, xa, order, GFP_KERNEL); xas_lock(&xas); xas_split(&xas, xa, order); xas_unlock(&xas); xa_for_each(xa, index, entry) { XA_BUG_ON(xa, entry != xa); i++; } XA_BUG_ON(xa, i != 1 << order); xa_set_mark(xa, index, XA_MARK_0); XA_BUG_ON(xa, !xa_get_mark(xa, index, XA_MARK_0)); xa_destroy(xa); } static noinline void check_split(struct xarray *xa) { unsigned int order; XA_BUG_ON(xa, !xa_empty(xa)); for (order = 1; order < 2 * XA_CHUNK_SHIFT; order++) { check_split_1(xa, 0, order); check_split_1(xa, 1UL << order, order); check_split_1(xa, 3UL << order, order); } } #else static void check_split(struct xarray *xa) { } #endif |
76b4e5299 XArray: Permit st... |
1521 1522 1523 1524 1525 1526 1527 1528 |
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++) { |
a3e4d3f97 XArray: Redesign ... |
1529 1530 |
XA_BUG_ON(xa, xa_alloc(xa, &id, name + i, xa_limit_32b, GFP_KERNEL) != 0); |
76b4e5299 XArray: Permit st... |
1531 1532 1533 1534 1535 1536 |
XA_BUG_ON(xa, id != i); } xa_for_each(xa, index, entry) XA_BUG_ON(xa, xa_is_err(entry)); xa_destroy(xa); } |
4a5c8d898 XArray: Fix xa_re... |
1537 1538 1539 1540 |
/* * We should always be able to store without allocating memory after * reserving a slot. */ |
2fbe967b3 XArray: Fix xa_er... |
1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 |
static void check_align_2(struct xarray *xa, char *name) { int i; XA_BUG_ON(xa, !xa_empty(xa)); for (i = 0; i < 8; i++) { XA_BUG_ON(xa, xa_store(xa, 0, name + i, GFP_KERNEL) != NULL); xa_erase(xa, 0); } |
4a5c8d898 XArray: Fix xa_re... |
1551 1552 1553 1554 1555 |
for (i = 0; i < 8; i++) { XA_BUG_ON(xa, xa_reserve(xa, 0, GFP_KERNEL) != 0); XA_BUG_ON(xa, xa_store(xa, 0, name + i, 0) != NULL); xa_erase(xa, 0); } |
2fbe967b3 XArray: Fix xa_er... |
1556 1557 |
XA_BUG_ON(xa, !xa_empty(xa)); } |
76b4e5299 XArray: Permit st... |
1558 1559 1560 1561 1562 1563 1564 1565 |
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); |
2fbe967b3 XArray: Fix xa_er... |
1566 |
check_align_2(xa, name); |
76b4e5299 XArray: Permit st... |
1567 |
} |
a97e7904c mm: Convert worki... |
1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 |
static LIST_HEAD(shadow_nodes); static void test_update_node(struct xa_node *node) { if (node->count && node->count == node->nr_values) { if (list_empty(&node->private_list)) list_add(&shadow_nodes, &node->private_list); } else { if (!list_empty(&node->private_list)) list_del_init(&node->private_list); } } static noinline void shadow_remove(struct xarray *xa) { struct xa_node *node; xa_lock(xa); while ((node = list_first_entry_or_null(&shadow_nodes, struct xa_node, private_list))) { |
a97e7904c mm: Convert worki... |
1588 1589 |
XA_BUG_ON(xa, node->array != xa); list_del_init(&node->private_list); |
f82cd2f0b XArray: Add priva... |
1590 |
xa_delete_node(node, test_update_node); |
a97e7904c mm: Convert worki... |
1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 |
} xa_unlock(xa); } static noinline void check_workingset(struct xarray *xa, unsigned long index) { XA_STATE(xas, xa, index); xas_set_update(&xas, test_update_node); do { xas_lock(&xas); xas_store(&xas, xa_mk_value(0)); xas_next(&xas); xas_store(&xas, xa_mk_value(1)); xas_unlock(&xas); } while (xas_nomem(&xas, GFP_KERNEL)); XA_BUG_ON(xa, list_empty(&shadow_nodes)); xas_lock(&xas); xas_next(&xas); xas_store(&xas, &xas); XA_BUG_ON(xa, !list_empty(&shadow_nodes)); xas_store(&xas, xa_mk_value(2)); xas_unlock(&xas); XA_BUG_ON(xa, list_empty(&shadow_nodes)); shadow_remove(xa); XA_BUG_ON(xa, !list_empty(&shadow_nodes)); XA_BUG_ON(xa, !xa_empty(xa)); } |
d6427f817 xarray: Move mult... |
1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 |
/* * Check that the pointer / value / sibling entries are accounted the * way we expect them to be. */ static noinline void check_account(struct xarray *xa) { #ifdef CONFIG_XARRAY_MULTI unsigned int order; for (order = 1; order < 12; order++) { XA_STATE(xas, xa, 1 << order); xa_store_order(xa, 0, order, xa, GFP_KERNEL); |
fffc9a260 XArray tests: Add... |
1636 |
rcu_read_lock(); |
d6427f817 xarray: Move mult... |
1637 1638 1639 1640 |
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); |
fffc9a260 XArray tests: Add... |
1641 |
rcu_read_unlock(); |
d6427f817 xarray: Move mult... |
1642 |
|
b7677a132 XArray tests: Han... |
1643 |
xa_store_order(xa, 1 << order, order, xa_mk_index(1UL << order), |
d6427f817 xarray: Move mult... |
1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 |
GFP_KERNEL); XA_BUG_ON(xa, xas.xa_node->count != xas.xa_node->nr_values * 2); xa_erase(xa, 1 << order); XA_BUG_ON(xa, xas.xa_node->nr_values != 0); xa_erase(xa, 0); XA_BUG_ON(xa, !xa_empty(xa)); } #endif } |
57417cebc XArray: add xa_ge... |
1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 |
static noinline void check_get_order(struct xarray *xa) { unsigned int max_order = IS_ENABLED(CONFIG_XARRAY_MULTI) ? 20 : 1; unsigned int order; unsigned long i, j; for (i = 0; i < 3; i++) XA_BUG_ON(xa, xa_get_order(xa, i) != 0); for (order = 0; order < max_order; order++) { for (i = 0; i < 10; i++) { xa_store_order(xa, i << order, order, xa_mk_index(i << order), GFP_KERNEL); for (j = i << order; j < (i + 1) << order; j++) XA_BUG_ON(xa, xa_get_order(xa, j) != order); xa_erase(xa, i << order); } } } |
687149fca xarray: Destroy a... |
1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 |
static noinline void check_destroy(struct xarray *xa) { unsigned long index; XA_BUG_ON(xa, !xa_empty(xa)); /* Destroying an empty array is a no-op */ xa_destroy(xa); XA_BUG_ON(xa, !xa_empty(xa)); /* Destroying an array with a single entry */ for (index = 0; index < 1000; index++) { xa_store_index(xa, index, GFP_KERNEL); XA_BUG_ON(xa, xa_empty(xa)); xa_destroy(xa); XA_BUG_ON(xa, !xa_empty(xa)); } /* Destroying an array with a single entry at ULONG_MAX */ xa_store(xa, ULONG_MAX, xa, GFP_KERNEL); XA_BUG_ON(xa, xa_empty(xa)); xa_destroy(xa); XA_BUG_ON(xa, !xa_empty(xa)); #ifdef CONFIG_XARRAY_MULTI /* Destroying an array with a multi-index entry */ xa_store_order(xa, 1 << 11, 11, xa, GFP_KERNEL); XA_BUG_ON(xa, xa_empty(xa)); xa_destroy(xa); XA_BUG_ON(xa, !xa_empty(xa)); #endif } |
58d6ea308 xarray: Add XArra... |
1706 |
static DEFINE_XARRAY(array); |
ad3d6c726 xarray: Add XArra... |
1707 1708 1709 |
static int xarray_checks(void) { |
58d6ea308 xarray: Add XArra... |
1710 |
check_xa_err(&array); |
b803b4282 xarray: Add XArra... |
1711 |
check_xas_retry(&array); |
ad3d6c726 xarray: Add XArra... |
1712 |
check_xa_load(&array); |
9b89a0355 xarray: Add XArra... |
1713 |
check_xa_mark(&array); |
58d6ea308 xarray: Add XArra... |
1714 |
check_xa_shrink(&array); |
b803b4282 xarray: Add XArra... |
1715 |
check_xas_erase(&array); |
12fd2aee6 XArray tests: Add... |
1716 |
check_insert(&array); |
41aec91f5 xarray: Add XArra... |
1717 |
check_cmpxchg(&array); |
9f14d4f1f xarray: Add xa_re... |
1718 |
check_reserve(&array); |
b38f6c502 XArray: Fix xa_re... |
1719 |
check_reserve(&xa0); |
58d6ea308 xarray: Add XArra... |
1720 |
check_multi_store(&array); |
57417cebc XArray: add xa_ge... |
1721 |
check_get_order(&array); |
371c752dc xarray: Track fre... |
1722 |
check_xa_alloc(); |
b803b4282 xarray: Add XArra... |
1723 |
check_find(&array); |
e21a29552 shmem: Convert fi... |
1724 |
check_find_entry(&array); |
c36d451ad XArray: Fix xas_p... |
1725 |
check_pause(&array); |
d6427f817 xarray: Move mult... |
1726 |
check_account(&array); |
687149fca xarray: Destroy a... |
1727 |
check_destroy(&array); |
64d3e9a9e xarray: Step thro... |
1728 |
check_move(&array); |
2264f5132 xarray: Add xas_c... |
1729 |
check_create_range(&array); |
0e9446c35 xarray: Add range... |
1730 |
check_store_range(&array); |
4e99d4e95 xarray: Add xas_f... |
1731 |
check_store_iter(&array); |
76b4e5299 XArray: Permit st... |
1732 |
check_align(&xa0); |
8fc75643c XArray: add xas_s... |
1733 |
check_split(&array); |
ad3d6c726 xarray: Add XArra... |
1734 |
|
a97e7904c mm: Convert worki... |
1735 1736 1737 |
check_workingset(&array, 0); check_workingset(&array, 64); check_workingset(&array, 4096); |
ad3d6c726 xarray: Add XArra... |
1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 |
printk("XArray: %u of %u tests passed ", tests_passed, tests_run); return (tests_run == tests_passed) ? 0 : -EINVAL; } static void xarray_exit(void) { } module_init(xarray_checks); module_exit(xarray_exit); MODULE_AUTHOR("Matthew Wilcox <willy@infradead.org>"); MODULE_LICENSE("GPL"); |