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clv: Change no_preempt from int to ihk_atomic_t.

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Fix the issue where the value of no_preempt gets unexpected value
(-1, 1, 2 etc.) after process ends when running the UTI tests.

Change-Id: I7d9c08b754a171ea3fdec20ab2e635df3b607cbd
This commit is contained in:
Shiratori, Takehiro
2019-03-08 20:55:58 +09:00
committed by Masamichi Takagi
parent 1070387ed2
commit eba2131f34
5 changed files with 14 additions and 11 deletions
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10
kernel/cls.c
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@ -66,15 +66,15 @@ void preempt_enable(void)
{
#ifndef ENABLE_FUGAKU_HACKS
if (cpu_local_var_initialized)
--cpu_local_var(no_preempt);
ihk_atomic_dec(&cpu_local_var(no_preempt));
#else
if (cpu_local_var_initialized) {
--cpu_local_var(no_preempt);
ihk_atomic_dec(&cpu_local_var(no_preempt));
if (cpu_local_var(no_preempt) < 0) {
if (ihk_atomic_read(&cpu_local_var(no_preempt)) < 0) {
//cpu_disable_interrupt();
__kprintf("%s: %d\n", __func__, cpu_local_var(no_preempt));
__kprintf("%s: %d\n", __func__, ihk_atomic_read(&cpu_local_var(no_preempt)));
__kprintf("TID: %d, call stack from builtin frame (most recent first):\n",
cpu_local_var(current)->tid);
__show_context_stack(cpu_local_var(current), (uintptr_t)&preempt_enable,
@ -93,7 +93,7 @@ void preempt_enable(void)
void preempt_disable(void)
{
if (cpu_local_var_initialized) {
++cpu_local_var(no_preempt);
ihk_atomic_inc(&cpu_local_var(no_preempt));
}
}