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gpu: nvgpu: fix for posix cond unit test

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Fix a possible synchronization issue between the threads in
posix condition variable unit test.

Bug 3183891

Change-Id: I315b55dc0225319f393e9e410c95245ed3d19683
Signed-off-by: ajeshkv <akv@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2450060
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: Shashank Singh <shashsingh@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
ajeshkv
2020-11-24 11:49:19 +05:30
committed by Alex Waterman
parent 2566977072
commit 29dc4e509a
1 changed files with 5 additions and 4 deletions
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9
userspace/units/posix/cond/posix-cond.c
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@@ -186,6 +186,8 @@ static int test_cond_write_thread(void *args)
test_code[i] = 0x55; test_code[i] = 0x55;
} }
usleep(50);
read_wait = false; read_wait = false;
if (data->use_broadcast) { if (data->use_broadcast) {
@@ -228,8 +230,6 @@ static int test_cond_read_thread(void *args)
data = (struct unit_test_cond_data *)args; data = (struct unit_test_cond_data *)args;
read_wait = true;
if (data->use_timedwait) { if (data->use_timedwait) {
timeout = 50; timeout = 50;
} else { } else {
@@ -237,6 +237,7 @@ static int test_cond_read_thread(void *args)
} }
if (data->use_condition) { if (data->use_condition) {
read_wait = true;
if (data->use_wait_int) { if (data->use_wait_int) {
ret = NVGPU_COND_WAIT_INTERRUPTIBLE(&test_cond, ret = NVGPU_COND_WAIT_INTERRUPTIBLE(&test_cond,
test_code[3] == 0x55, 0); test_code[3] == 0x55, 0);
@@ -256,6 +257,7 @@ static int test_cond_read_thread(void *args)
} else { } else {
nvgpu_cond_lock(&test_cond); nvgpu_cond_lock(&test_cond);
read_wait = true;
ret = nvgpu_cond_timedwait(&test_cond, &timeout); ret = nvgpu_cond_timedwait(&test_cond, &timeout);
if (ret != 0) { if (ret != 0) {
read_status = ret; read_status = ret;
@@ -285,8 +287,6 @@ static int test_cond_bcst_read_thread(void *args)
data = (struct unit_test_cond_data *)args; data = (struct unit_test_cond_data *)args;
bcst_read_wait = true;
if (data->use_timedwait) { if (data->use_timedwait) {
timeout = 50; timeout = 50;
} else { } else {
@@ -295,6 +295,7 @@ static int test_cond_bcst_read_thread(void *args)
nvgpu_cond_lock(&test_cond); nvgpu_cond_lock(&test_cond);
bcst_read_wait = true;
ret = nvgpu_cond_timedwait(&test_cond, &timeout); ret = nvgpu_cond_timedwait(&test_cond, &timeout);
if (ret != 0) { if (ret != 0) {
bcst_read_status = ret; bcst_read_status = ret;