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Searched refs:rand (Results 1 – 25 of 128) sorted by relevance

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/linux-6.6.21/tools/testing/radix-tree/
Dmain.c58 __gang_check(start, rand() % 113 + 1, rand() % 71, in __big_gang_check()
59 rand() % 157, rand() % 91 + 1); in __big_gang_check()
61 start += rand() % 1000000; in __big_gang_check()
164 start = rand(); in copy_tag_check()
165 end = rand(); in copy_tag_check()
166 if (start > end && (rand() % 10)) { in copy_tag_check()
173 cur = rand(); in copy_tag_check()
203 idx[i] = rand(); in copy_tag_check()
207 if (rand() & 1) { in copy_tag_check()
225 tmp = rand() % (count / 10 + 2); in copy_tag_check()
Dtag_check.c180 index = rand() % THRASH_SIZE; in do_thrash()
192 index = rand() % THRASH_SIZE; in do_thrash()
210 index = rand() % THRASH_SIZE; in do_thrash()
225 index = rand() % THRASH_SIZE; in do_thrash()
/linux-6.6.21/tools/testing/selftests/powerpc/ptrace/
Dptrace-hwbreak.c139 if (rand() % 2) in test_workload()
155 if (rand() % 2) in test_workload()
164 gstruct.a[rand() % A_LEN] = 'a'; in test_workload()
167 cvar = gstruct.a[rand() % A_LEN]; in test_workload()
170 if (rand() % 2) in test_workload()
171 gstruct.a[rand() % A_LEN] = 'a'; in test_workload()
173 cvar = gstruct.a[rand() % A_LEN]; in test_workload()
176 gstruct.b[rand() % B_LEN] = 'b'; in test_workload()
179 cvar = gstruct.b[rand() % B_LEN]; in test_workload()
182 if (rand() % 2) in test_workload()
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Dptrace-tm-spd-vsx.c136 fp_load[i] = 1 + rand(); in ptrace_tm_spd_vsx()
137 fp_load_new[i] = 1 + 2 * rand(); in ptrace_tm_spd_vsx()
138 fp_load_ckpt[i] = 1 + 3 * rand(); in ptrace_tm_spd_vsx()
139 fp_load_ckpt_new[i] = 1 + 4 * rand(); in ptrace_tm_spd_vsx()
Dptrace-tm-vsx.c120 fp_load[i] = 1 + rand(); in ptrace_tm_vsx()
121 fp_load_ckpt[i] = 1 + 2 * rand(); in ptrace_tm_vsx()
122 fp_load_ckpt_new[i] = 1 + 3 * rand(); in ptrace_tm_vsx()
Dptrace-vsx.c69 fp_load[i] = i + rand(); in ptrace_vsx()
72 fp_load_new[i] = i + 2 * rand(); in ptrace_vsx()
/linux-6.6.21/tools/testing/selftests/kvm/s390x/
Dmemop.c292 mem1[i] = rand(); in prepare_mem12()
499 unsigned int rand; in choose_block() local
501 rand = i; in choose_block()
503 rand = rand * 19 + 11; in choose_block()
504 *size = 1 << ((rand % 3) + 2); in choose_block()
505 rand = rand * 19 + 11; in choose_block()
506 *offset = (rand % max_block) & ~(*size - 1); in choose_block()
508 rand = rand * 17 + 5; in choose_block()
509 *size = 1 << (rand % 5); in choose_block()
510 rand = rand * 17 + 5; in choose_block()
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/linux-6.6.21/tools/testing/selftests/powerpc/dscr/
Ddscr_explicit_test.c107 expected_dscr = rand() % DSCR_MAX; in dscr_explicit_random_thread()
110 for (int j = rand() % 5; j > 0; --j) { in dscr_explicit_random_thread()
114 if (args->do_yields && rand() % 2) in dscr_explicit_random_thread()
118 expected_dscr = rand() % DSCR_MAX; in dscr_explicit_random_thread()
121 for (int j = rand() % 5; j > 0; --j) { in dscr_explicit_random_thread()
125 if (args->do_yields && rand() % 2) in dscr_explicit_random_thread()
/linux-6.6.21/tools/testing/selftests/mm/
Dmlock-random-test.c162 int is_mlock = !!(rand() % 2); in test_mlock_within_limit()
163 int lock_size = rand() % alloc_size; in test_mlock_within_limit()
164 int start_offset = rand() % (alloc_size - lock_size); in test_mlock_within_limit()
233 int is_mlock = !!(rand() % 2); in test_mlock_outof_limit()
234 int lock_size = (rand() % (alloc_size - cur.rlim_cur)) in test_mlock_outof_limit()
236 int start_offset = rand() % (alloc_size - lock_size); in test_mlock_outof_limit()
/linux-6.6.21/include/linux/
Drandomize_kstack.h79 #define choose_random_kstack_offset(rand) do { \ argument
83 offset ^= (rand); \
89 #define choose_random_kstack_offset(rand) do { } while (0) argument
/linux-6.6.21/mm/
Dshuffle.c163 static u64 rand; in shuffle_pick_tail() local
173 rand = get_random_u64(); in shuffle_pick_tail()
176 ret = rand & 1; in shuffle_pick_tail()
179 rand >>= 1; in shuffle_pick_tail()
/linux-6.6.21/drivers/media/test-drivers/vivid/
Dvivid-touch-cap.c213 unsigned int rand = get_random_u32(); in vivid_fill_buff_noise() local
215 if (rand % 10) in vivid_fill_buff_noise()
218 tch_buf[i] = (rand / 10) % 7 - 3; in vivid_fill_buff_noise()
261 unsigned int test_pattern, test_pat_idx, rand; in vivid_fillbuff_tch() local
276 rand = dev->tch_pat_random; in vivid_fillbuff_tch()
281 vivid_tch_buf_set(f, tch_buf, rand % size); in vivid_fillbuff_tch()
285 vivid_tch_buf_set(f, tch_buf, rand % size); in vivid_fillbuff_tch()
289 vivid_tch_buf_set(f, tch_buf, rand % size); in vivid_fillbuff_tch()
293 (rand % f->height) * f->width + in vivid_fillbuff_tch()
/linux-6.6.21/arch/x86/mm/
Dkaslr.c68 unsigned long rand, memory_tb; in kernel_randomize_memory() local
126 prandom_bytes_state(&rand_state, &rand, sizeof(rand)); in kernel_randomize_memory()
127 entropy = (rand % (entropy + 1)) & PUD_MASK; in kernel_randomize_memory()
/linux-6.6.21/tools/testing/selftests/bpf/
Dbpf_rand.h11 return (((uint64_t)(uint32_t)rand()) | in bpf_rand_mask()
12 ((uint64_t)(uint32_t)rand() << 32)) & mask; in bpf_rand_mask()
37 switch (rand() % 39) { in bpf_semi_rand_get()
/linux-6.6.21/tools/testing/selftests/net/
Dip_defrag.c245 if (!cfg_overlap && (rand() % 100 < 15)) { in send_udp_frags()
255 if (!cfg_overlap && (rand() % 100 < 20) && in send_udp_frags()
280 if (rand() % 100 == 1) in send_udp_frags()
299 offset = rand() % (payload_len / 2); in send_udp_frags()
300 frag_len = 2 * max_frag_len + 1 + rand() % 256; in send_udp_frags()
328 if (rand() % 100 == 1) in send_udp_frags()
364 payload_len += (rand() % 4096)) { in run_test()
375 rand() % (1500 - FRAG_HLEN - min_frag_len); in run_test()
389 max_frag_len += 8 * (rand() % 8); in run_test()
/linux-6.6.21/tools/testing/selftests/bpf/prog_tests/
Dtcp_hdr_options.c64 prefix ? : "", opt->flags, opt->max_delack_ms, opt->rand); in print_option()
304 exp_passive_estab_in.rand = 0xfa; in fastopen_estab()
308 exp_active_estab_in.rand = 0xce; in fastopen_estab()
341 exp_passive_estab_in.rand = 0xfa; in syncookie_estab()
346 exp_active_estab_in.rand = 0xce; in syncookie_estab()
385 exp_passive_fin_in.rand = 0xfa; in fin()
388 exp_active_fin_in.rand = 0xce; in fin()
417 exp_passive_estab_in.rand = 0xfa; in __simple_estab()
421 exp_active_estab_in.rand = 0xce; in __simple_estab()
/linux-6.6.21/net/rds/
Dthreads.c126 unsigned long rand; in rds_queue_reconnect() local
148 get_random_bytes(&rand, sizeof(rand)); in rds_queue_reconnect()
150 rand % cp->cp_reconnect_jiffies, cp->cp_reconnect_jiffies, in rds_queue_reconnect()
155 rand % cp->cp_reconnect_jiffies); in rds_queue_reconnect()
/linux-6.6.21/kernel/rcu/
Drcutorture.c1369 static DEFINE_TORTURE_RANDOM(rand); in rcu_torture_writer()
1392 torture_hrtimeout_us(500, 1000, &rand); in rcu_torture_writer()
1398 udelay(torture_random(&rand) & 0x3ff); in rcu_torture_writer()
1444 switch (synctype[torture_random(&rand) % nsynctypes]) { in rcu_torture_writer()
1451 do_rtws_sync(&rand, cur_ops->exp_sync); in rcu_torture_writer()
1457 torture_hrtimeout_jiffies(torture_random(&rand) % 16, &rand); in rcu_torture_writer()
1465 torture_hrtimeout_jiffies(torture_random(&rand) % 16, &rand); in rcu_torture_writer()
1473 torture_hrtimeout_jiffies(torture_random(&rand) % 16, &rand); in rcu_torture_writer()
1481 torture_hrtimeout_jiffies(torture_random(&rand) % 16, &rand); in rcu_torture_writer()
1501 torture_hrtimeout_jiffies(torture_random(&rand) % 16, in rcu_torture_writer()
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/linux-6.6.21/tools/perf/tests/
Dwp.c78 unsigned long tmp, tmp1 = rand(); in test__wp_ro()
102 unsigned long tmp, tmp1 = rand(); in test__wp_wo()
126 unsigned long tmp, tmp1 = rand(); in test__wp_rw()
150 unsigned long tmp = rand(); in test__wp_modify()
/linux-6.6.21/kernel/
Dtorture.c344 DEFINE_TORTURE_RANDOM(rand); in torture_onoff()
358 torture_hrtimeout_jiffies(onoff_holdoff, &rand); in torture_onoff()
363 torture_hrtimeout_jiffies(HZ / 10, &rand); in torture_onoff()
366 cpu = torture_random(&rand) % (maxcpu + 1); in torture_onoff()
373 torture_hrtimeout_jiffies(onoff_interval, &rand); in torture_onoff()
526 DEFINE_TORTURE_RANDOM(rand); in torture_shuffle_tasks()
547 if (!random_shuffle || torture_random(&rand) & 0x1) in torture_shuffle_tasks()
561 DEFINE_TORTURE_RANDOM(rand); in torture_shuffle()
565 torture_hrtimeout_jiffies(shuffle_interval, &rand); in torture_shuffle()
/linux-6.6.21/arch/x86/kernel/
Despfix_64.c97 unsigned long rand = get_random_long(); in init_espfix_random() local
99 slot_random = rand % ESPFIX_STACKS_PER_PAGE; in init_espfix_random()
100 page_random = (rand / ESPFIX_STACKS_PER_PAGE) in init_espfix_random()
/linux-6.6.21/tools/testing/selftests/sync/
Dsync_stress_merge.c64 timeline_offset = rand() % timeline_count; in test_merge_stress_random_merge()
66 sync_point = rand(); in test_merge_stress_random_merge()
/linux-6.6.21/samples/bpf/
Dmap_perf_test_user.c382 key->prefixlen = rand() % 33; in fill_lpm_trie()
383 key->data[0] = rand() & 0xff; in fill_lpm_trie()
384 key->data[1] = rand() & 0xff; in fill_lpm_trie()
385 key->data[2] = rand() & 0xff; in fill_lpm_trie()
386 key->data[3] = rand() & 0xff; in fill_lpm_trie()
Dhbm_edt_kern.c132 unsigned int rand = bpf_get_prandom_u32(); in _hbm_out_cg() local
135 (rand % MARK_REGION_SIZE_NS)) { in _hbm_out_cg()
/linux-6.6.21/net/rose/
Drose_subr.c259 facilities->rand = ((p[1] << 8) & 0xFF00) + ((p[2] << 0) & 0x00FF); in rose_parse_national()
443 if (rose->rand != 0 || rose->source_ndigis == 1 || rose->dest_ndigis == 1) { in rose_create_facilities()
447 if (rose->rand != 0) { in rose_create_facilities()
449 *p++ = (rose->rand >> 8) & 0xFF; in rose_create_facilities()
450 *p++ = (rose->rand >> 0) & 0xFF; in rose_create_facilities()

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