Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Eric Dumazet | 549 | 98.56% | 1 | 33.33% |
Jeff Johnson | 6 | 1.08% | 1 | 33.33% |
Andrzej Hajda | 2 | 0.36% | 1 | 33.33% |
Total | 557 | 3 |
// SPDX-License-Identifier: GPL-2.0-only /* * Reference tracker self test. * * Copyright (c) 2021 Eric Dumazet <edumazet@google.com> */ #include <linux/init.h> #include <linux/module.h> #include <linux/delay.h> #include <linux/ref_tracker.h> #include <linux/slab.h> #include <linux/timer.h> static struct ref_tracker_dir ref_dir; static struct ref_tracker *tracker[20]; #define TRT_ALLOC(X) static noinline void \ alloctest_ref_tracker_alloc##X(struct ref_tracker_dir *dir, \ struct ref_tracker **trackerp) \ { \ ref_tracker_alloc(dir, trackerp, GFP_KERNEL); \ } TRT_ALLOC(1) TRT_ALLOC(2) TRT_ALLOC(3) TRT_ALLOC(4) TRT_ALLOC(5) TRT_ALLOC(6) TRT_ALLOC(7) TRT_ALLOC(8) TRT_ALLOC(9) TRT_ALLOC(10) TRT_ALLOC(11) TRT_ALLOC(12) TRT_ALLOC(13) TRT_ALLOC(14) TRT_ALLOC(15) TRT_ALLOC(16) TRT_ALLOC(17) TRT_ALLOC(18) TRT_ALLOC(19) #undef TRT_ALLOC static noinline void alloctest_ref_tracker_free(struct ref_tracker_dir *dir, struct ref_tracker **trackerp) { ref_tracker_free(dir, trackerp); } static struct timer_list test_ref_tracker_timer; static atomic_t test_ref_timer_done = ATOMIC_INIT(0); static void test_ref_tracker_timer_func(struct timer_list *t) { ref_tracker_alloc(&ref_dir, &tracker[0], GFP_ATOMIC); atomic_set(&test_ref_timer_done, 1); } static int __init test_ref_tracker_init(void) { int i; ref_tracker_dir_init(&ref_dir, 100, "selftest"); timer_setup(&test_ref_tracker_timer, test_ref_tracker_timer_func, 0); mod_timer(&test_ref_tracker_timer, jiffies + 1); alloctest_ref_tracker_alloc1(&ref_dir, &tracker[1]); alloctest_ref_tracker_alloc2(&ref_dir, &tracker[2]); alloctest_ref_tracker_alloc3(&ref_dir, &tracker[3]); alloctest_ref_tracker_alloc4(&ref_dir, &tracker[4]); alloctest_ref_tracker_alloc5(&ref_dir, &tracker[5]); alloctest_ref_tracker_alloc6(&ref_dir, &tracker[6]); alloctest_ref_tracker_alloc7(&ref_dir, &tracker[7]); alloctest_ref_tracker_alloc8(&ref_dir, &tracker[8]); alloctest_ref_tracker_alloc9(&ref_dir, &tracker[9]); alloctest_ref_tracker_alloc10(&ref_dir, &tracker[10]); alloctest_ref_tracker_alloc11(&ref_dir, &tracker[11]); alloctest_ref_tracker_alloc12(&ref_dir, &tracker[12]); alloctest_ref_tracker_alloc13(&ref_dir, &tracker[13]); alloctest_ref_tracker_alloc14(&ref_dir, &tracker[14]); alloctest_ref_tracker_alloc15(&ref_dir, &tracker[15]); alloctest_ref_tracker_alloc16(&ref_dir, &tracker[16]); alloctest_ref_tracker_alloc17(&ref_dir, &tracker[17]); alloctest_ref_tracker_alloc18(&ref_dir, &tracker[18]); alloctest_ref_tracker_alloc19(&ref_dir, &tracker[19]); /* free all trackers but first 0 and 1. */ for (i = 2; i < ARRAY_SIZE(tracker); i++) alloctest_ref_tracker_free(&ref_dir, &tracker[i]); /* Attempt to free an already freed tracker. */ alloctest_ref_tracker_free(&ref_dir, &tracker[2]); while (!atomic_read(&test_ref_timer_done)) msleep(1); /* This should warn about tracker[0] & tracker[1] being not freed. */ ref_tracker_dir_exit(&ref_dir); return 0; } static void __exit test_ref_tracker_exit(void) { } module_init(test_ref_tracker_init); module_exit(test_ref_tracker_exit); MODULE_DESCRIPTION("Reference tracker self test"); MODULE_LICENSE("GPL v2");
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