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e6fbd1759c
This follow-up patch completes centralization of kselftest.h and ksefltest_harness.h includes in remaining seltests files, replacing all relative paths with a non-relative paths using shared -I include path in lib.mk Tested with gcc-13.3 and clang-18.1, and cross-compiled successfully on riscv, arm64, x86_64 and powerpc arch. [reddybalavignesh9979@gmail.com: add selftests include path for kselftest.h] Link: https://lkml.kernel.org/r/20251017090201.317521-1-reddybalavignesh9979@gmail.com Link: https://lkml.kernel.org/r/20251016104409.68985-1-reddybalavignesh9979@gmail.com Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lore.kernel.org/lkml/20250820143954.33d95635e504e94df01930d0@linux-foundation.org/ Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Günther Noack <gnoack@google.com> Cc: Jakub Kacinski <kuba@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Mickael Salaun <mic@digikod.net> Cc: Ming Lei <ming.lei@redhat.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright Collabora Ltd., 2021
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*
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* futex cmp requeue test by André Almeida <andrealmeid@collabora.com>
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*/
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#include <pthread.h>
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#include <limits.h>
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#include "futextest.h"
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#include "kselftest_harness.h"
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#define timeout_ns 30000000
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#define WAKE_WAIT_US 10000
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volatile futex_t *f1;
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void *waiterfn(void *arg)
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{
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struct timespec to;
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to.tv_sec = 0;
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to.tv_nsec = timeout_ns;
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if (futex_wait(f1, *f1, &to, 0))
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printf("waiter failed errno %d\n", errno);
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return NULL;
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}
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TEST(requeue_single)
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{
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volatile futex_t _f1 = 0;
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volatile futex_t f2 = 0;
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pthread_t waiter[10];
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int res;
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f1 = &_f1;
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/*
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* Requeue a waiter from f1 to f2, and wake f2.
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*/
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if (pthread_create(&waiter[0], NULL, waiterfn, NULL))
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ksft_exit_fail_msg("pthread_create failed\n");
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usleep(WAKE_WAIT_US);
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ksft_print_dbg_msg("Requeuing 1 futex from f1 to f2\n");
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res = futex_cmp_requeue(f1, 0, &f2, 0, 1, 0);
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if (res != 1)
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ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
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res ? errno : res,
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res ? strerror(errno) : "");
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ksft_print_dbg_msg("Waking 1 futex at f2\n");
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res = futex_wake(&f2, 1, 0);
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if (res != 1) {
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ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
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res ? errno : res,
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res ? strerror(errno) : "");
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} else {
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ksft_test_result_pass("futex_requeue simple succeeds\n");
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}
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}
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TEST(requeue_multiple)
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{
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volatile futex_t _f1 = 0;
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volatile futex_t f2 = 0;
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pthread_t waiter[10];
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int res, i;
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f1 = &_f1;
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/*
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* Create 10 waiters at f1. At futex_requeue, wake 3 and requeue 7.
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* At futex_wake, wake INT_MAX (should be exactly 7).
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*/
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for (i = 0; i < 10; i++) {
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if (pthread_create(&waiter[i], NULL, waiterfn, NULL))
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ksft_exit_fail_msg("pthread_create failed\n");
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}
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usleep(WAKE_WAIT_US);
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ksft_print_dbg_msg("Waking 3 futexes at f1 and requeuing 7 futexes from f1 to f2\n");
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res = futex_cmp_requeue(f1, 0, &f2, 3, 7, 0);
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if (res != 10) {
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ksft_test_result_fail("futex_requeue many returned: %d %s\n",
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res ? errno : res,
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res ? strerror(errno) : "");
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}
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ksft_print_dbg_msg("Waking INT_MAX futexes at f2\n");
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res = futex_wake(&f2, INT_MAX, 0);
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if (res != 7) {
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ksft_test_result_fail("futex_requeue many returned: %d %s\n",
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res ? errno : res,
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res ? strerror(errno) : "");
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} else {
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ksft_test_result_pass("futex_requeue many succeeds\n");
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}
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}
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TEST_HARNESS_MAIN
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