diff options
author | Dan Williams | 2017-08-31 16:25:59 -0700 |
---|---|---|
committer | Dan Williams | 2017-08-31 16:25:59 -0700 |
commit | 8f98ae0c9b90bb46097e4f28e81e9ae6148e5694 (patch) | |
tree | c1d0f0d9b0733bf3271780e45d7a1c299fe2fc48 /lib | |
parent | 58738c495e15badd2015e19ff41f1f1ed55200bc (diff) | |
parent | 5e405595e5bf4c09fab9ca1e7dbe5b62872757b5 (diff) |
Merge branch 'for-4.14/fs' into libnvdimm-for-next
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Kconfig.debug | 7 | ||||
-rw-r--r-- | lib/fault-inject.c | 8 | ||||
-rw-r--r-- | lib/test_kmod.c | 16 | ||||
-rw-r--r-- | lib/test_rhashtable.c | 57 | ||||
-rw-r--r-- | lib/test_uuid.c | 2 |
5 files changed, 56 insertions, 34 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 98fe715522e8..c617b9d1d6cb 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -798,6 +798,13 @@ config HARDLOCKUP_DETECTOR_PERF select SOFTLOCKUP_DETECTOR # +# Enables a timestamp based low pass filter to compensate for perf based +# hard lockup detection which runs too fast due to turbo modes. +# +config HARDLOCKUP_CHECK_TIMESTAMP + bool + +# # arch/ can define HAVE_HARDLOCKUP_DETECTOR_ARCH to provide their own hard # lockup detector rather than the perf based detector. # diff --git a/lib/fault-inject.c b/lib/fault-inject.c index 7d315fdb9f13..cf7b129b0b2b 100644 --- a/lib/fault-inject.c +++ b/lib/fault-inject.c @@ -110,10 +110,12 @@ bool should_fail(struct fault_attr *attr, ssize_t size) if (in_task()) { unsigned int fail_nth = READ_ONCE(current->fail_nth); - if (fail_nth && !WRITE_ONCE(current->fail_nth, fail_nth - 1)) - goto fail; + if (fail_nth) { + if (!WRITE_ONCE(current->fail_nth, fail_nth - 1)) + goto fail; - return false; + return false; + } } /* No need to check any other properties if the probability is 0 */ diff --git a/lib/test_kmod.c b/lib/test_kmod.c index 6c1d678bcf8b..ff9148969b92 100644 --- a/lib/test_kmod.c +++ b/lib/test_kmod.c @@ -485,7 +485,7 @@ static ssize_t config_show(struct device *dev, config->test_driver); else len += snprintf(buf+len, PAGE_SIZE - len, - "driver:\tEMTPY\n"); + "driver:\tEMPTY\n"); if (config->test_fs) len += snprintf(buf+len, PAGE_SIZE - len, @@ -493,7 +493,7 @@ static ssize_t config_show(struct device *dev, config->test_fs); else len += snprintf(buf+len, PAGE_SIZE - len, - "fs:\tEMTPY\n"); + "fs:\tEMPTY\n"); mutex_unlock(&test_dev->config_mutex); @@ -746,11 +746,11 @@ static int trigger_config_run_type(struct kmod_test_device *test_dev, strlen(test_str)); break; case TEST_KMOD_FS_TYPE: - break; kfree_const(config->test_fs); config->test_driver = NULL; copied = config_copy_test_fs(config, test_str, strlen(test_str)); + break; default: mutex_unlock(&test_dev->config_mutex); return -EINVAL; @@ -880,10 +880,10 @@ static int test_dev_config_update_uint_sync(struct kmod_test_device *test_dev, int (*test_sync)(struct kmod_test_device *test_dev)) { int ret; - long new; + unsigned long new; unsigned int old_val; - ret = kstrtol(buf, 10, &new); + ret = kstrtoul(buf, 10, &new); if (ret) return ret; @@ -918,9 +918,9 @@ static int test_dev_config_update_uint_range(struct kmod_test_device *test_dev, unsigned int max) { int ret; - long new; + unsigned long new; - ret = kstrtol(buf, 10, &new); + ret = kstrtoul(buf, 10, &new); if (ret) return ret; @@ -1146,7 +1146,7 @@ static struct kmod_test_device *register_test_dev_kmod(void) struct kmod_test_device *test_dev = NULL; int ret; - mutex_unlock(®_dev_mutex); + mutex_lock(®_dev_mutex); /* int should suffice for number of devices, test for wrap */ if (unlikely(num_test_devs + 1) < 0) { diff --git a/lib/test_rhashtable.c b/lib/test_rhashtable.c index 64e899b63337..0ffca990a833 100644 --- a/lib/test_rhashtable.c +++ b/lib/test_rhashtable.c @@ -56,8 +56,13 @@ static bool enomem_retry = false; module_param(enomem_retry, bool, 0); MODULE_PARM_DESC(enomem_retry, "Retry insert even if -ENOMEM was returned (default: off)"); +struct test_obj_val { + int id; + int tid; +}; + struct test_obj { - int value; + struct test_obj_val value; struct rhash_head node; }; @@ -72,7 +77,7 @@ static struct test_obj array[MAX_ENTRIES]; static struct rhashtable_params test_rht_params = { .head_offset = offsetof(struct test_obj, node), .key_offset = offsetof(struct test_obj, value), - .key_len = sizeof(int), + .key_len = sizeof(struct test_obj_val), .hashfn = jhash, .nulls_base = (3U << RHT_BASE_SHIFT), }; @@ -109,24 +114,26 @@ static int __init test_rht_lookup(struct rhashtable *ht) for (i = 0; i < entries * 2; i++) { struct test_obj *obj; bool expected = !(i % 2); - u32 key = i; + struct test_obj_val key = { + .id = i, + }; - if (array[i / 2].value == TEST_INSERT_FAIL) + if (array[i / 2].value.id == TEST_INSERT_FAIL) expected = false; obj = rhashtable_lookup_fast(ht, &key, test_rht_params); if (expected && !obj) { - pr_warn("Test failed: Could not find key %u\n", key); + pr_warn("Test failed: Could not find key %u\n", key.id); return -ENOENT; } else if (!expected && obj) { pr_warn("Test failed: Unexpected entry found for key %u\n", - key); + key.id); return -EEXIST; } else if (expected && obj) { - if (obj->value != i) { + if (obj->value.id != i) { pr_warn("Test failed: Lookup value mismatch %u!=%u\n", - obj->value, i); + obj->value.id, i); return -EINVAL; } } @@ -195,7 +202,7 @@ static s64 __init test_rhashtable(struct rhashtable *ht) for (i = 0; i < entries; i++) { struct test_obj *obj = &array[i]; - obj->value = i * 2; + obj->value.id = i * 2; err = insert_retry(ht, &obj->node, test_rht_params); if (err > 0) insert_retries += err; @@ -216,9 +223,11 @@ static s64 __init test_rhashtable(struct rhashtable *ht) pr_info(" Deleting %d keys\n", entries); for (i = 0; i < entries; i++) { - u32 key = i * 2; + struct test_obj_val key = { + .id = i * 2, + }; - if (array[i].value != TEST_INSERT_FAIL) { + if (array[i].value.id != TEST_INSERT_FAIL) { obj = rhashtable_lookup_fast(ht, &key, test_rht_params); BUG_ON(!obj); @@ -242,18 +251,21 @@ static int thread_lookup_test(struct thread_data *tdata) for (i = 0; i < entries; i++) { struct test_obj *obj; - int key = (tdata->id << 16) | i; + struct test_obj_val key = { + .id = i, + .tid = tdata->id, + }; obj = rhashtable_lookup_fast(&ht, &key, test_rht_params); - if (obj && (tdata->objs[i].value == TEST_INSERT_FAIL)) { - pr_err(" found unexpected object %d\n", key); + if (obj && (tdata->objs[i].value.id == TEST_INSERT_FAIL)) { + pr_err(" found unexpected object %d-%d\n", key.tid, key.id); err++; - } else if (!obj && (tdata->objs[i].value != TEST_INSERT_FAIL)) { - pr_err(" object %d not found!\n", key); + } else if (!obj && (tdata->objs[i].value.id != TEST_INSERT_FAIL)) { + pr_err(" object %d-%d not found!\n", key.tid, key.id); err++; - } else if (obj && (obj->value != key)) { - pr_err(" wrong object returned (got %d, expected %d)\n", - obj->value, key); + } else if (obj && memcmp(&obj->value, &key, sizeof(key))) { + pr_err(" wrong object returned (got %d-%d, expected %d-%d)\n", + obj->value.tid, obj->value.id, key.tid, key.id); err++; } @@ -272,7 +284,8 @@ static int threadfunc(void *data) pr_err(" thread[%d]: down_interruptible failed\n", tdata->id); for (i = 0; i < entries; i++) { - tdata->objs[i].value = (tdata->id << 16) | i; + tdata->objs[i].value.id = i; + tdata->objs[i].value.tid = tdata->id; err = insert_retry(&ht, &tdata->objs[i].node, test_rht_params); if (err > 0) { insert_retries += err; @@ -295,7 +308,7 @@ static int threadfunc(void *data) for (step = 10; step > 0; step--) { for (i = 0; i < entries; i += step) { - if (tdata->objs[i].value == TEST_INSERT_FAIL) + if (tdata->objs[i].value.id == TEST_INSERT_FAIL) continue; err = rhashtable_remove_fast(&ht, &tdata->objs[i].node, test_rht_params); @@ -304,7 +317,7 @@ static int threadfunc(void *data) tdata->id); goto out; } - tdata->objs[i].value = TEST_INSERT_FAIL; + tdata->objs[i].value.id = TEST_INSERT_FAIL; cond_resched(); } diff --git a/lib/test_uuid.c b/lib/test_uuid.c index 478c049630b5..cd819c397dc7 100644 --- a/lib/test_uuid.c +++ b/lib/test_uuid.c @@ -82,7 +82,7 @@ static void __init test_uuid_test(const struct test_uuid_data *data) test_uuid_failed("conversion", false, true, data->uuid, NULL); total_tests++; - if (uuid_equal(&data->be, &be)) { + if (!uuid_equal(&data->be, &be)) { sprintf(buf, "%pUb", &be); test_uuid_failed("cmp", false, true, data->uuid, buf); } |