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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /tools/testing/radix-tree/regression4.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/radix-tree/regression4.c')
-rw-r--r-- | tools/testing/radix-tree/regression4.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tools/testing/radix-tree/regression4.c b/tools/testing/radix-tree/regression4.c new file mode 100644 index 000000000..cf4e5aba6 --- /dev/null +++ b/tools/testing/radix-tree/regression4.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/kernel.h> +#include <linux/gfp.h> +#include <linux/slab.h> +#include <linux/radix-tree.h> +#include <linux/rcupdate.h> +#include <stdlib.h> +#include <pthread.h> +#include <stdio.h> +#include <assert.h> + +#include "regression.h" + +static pthread_barrier_t worker_barrier; +static int obj0, obj1; +static RADIX_TREE(mt_tree, GFP_KERNEL); + +static void *reader_fn(void *arg) +{ + int i; + void *entry; + + rcu_register_thread(); + pthread_barrier_wait(&worker_barrier); + + for (i = 0; i < 1000000; i++) { + rcu_read_lock(); + entry = radix_tree_lookup(&mt_tree, 0); + rcu_read_unlock(); + if (entry != &obj0) { + printf("iteration %d bad entry = %p\n", i, entry); + abort(); + } + } + + rcu_unregister_thread(); + + return NULL; +} + +static void *writer_fn(void *arg) +{ + int i; + + rcu_register_thread(); + pthread_barrier_wait(&worker_barrier); + + for (i = 0; i < 1000000; i++) { + radix_tree_insert(&mt_tree, 1, &obj1); + radix_tree_delete(&mt_tree, 1); + } + + rcu_unregister_thread(); + + return NULL; +} + +void regression4_test(void) +{ + pthread_t reader, writer; + + printv(1, "regression test 4 starting\n"); + + radix_tree_insert(&mt_tree, 0, &obj0); + pthread_barrier_init(&worker_barrier, NULL, 2); + + if (pthread_create(&reader, NULL, reader_fn, NULL) || + pthread_create(&writer, NULL, writer_fn, NULL)) { + perror("pthread_create"); + exit(1); + } + + if (pthread_join(reader, NULL) || pthread_join(writer, NULL)) { + perror("pthread_join"); + exit(1); + } + + printv(1, "regression test 4 passed\n"); +} |