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check_need_resched(): no thread migration in IRQ context

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Balazs Gerofi
2015-08-10 12:43:35 +09:00
parent 9ba40dc0ff
commit f4cc82578d
1 changed files with 4 additions and 0 deletions
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4
kernel/process.c
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@ -2388,6 +2388,10 @@ void check_need_resched(void)
{ {
struct cpu_local_var *v = get_this_cpu_local_var(); struct cpu_local_var *v = get_this_cpu_local_var();
if (v->flags & CPU_FLAG_NEED_RESCHED) { if (v->flags & CPU_FLAG_NEED_RESCHED) {
if (v->in_interrupt && (v->flags & CPU_FLAG_NEED_MIGRATE)) {
dkprintf("no migration in IRQ context\n");
return;
}
v->flags &= ~CPU_FLAG_NEED_RESCHED; v->flags &= ~CPU_FLAG_NEED_RESCHED;
schedule(); schedule();
} }