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handle_interrupt_gicv3(): check for CPU_FLAG_NEED_RESCHED as well

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Change-Id: Id6ade08e4e572a6d837476de2872126442d3591c
This commit is contained in:
Balazs Gerofi
2019-09-26 12:07:43 +09:00
committed by Masamichi Takagi
parent 5395891966
commit 2db3717e57
1 changed files with 14 additions and 3 deletions
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17
arch/arm64/kernel/irq-gic-v3.c
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@ -310,6 +310,9 @@ void handle_interrupt_gicv3(struct pt_regs *regs)
{
uint64_t irqnr;
const int from_user = interrupt_from_user(regs);
struct cpu_local_var *v = get_this_cpu_local_var();
unsigned long irqflags;
int do_check = 0;
irqnr = gic_read_iar();
cpu_enable_nmi();
@ -323,10 +326,18 @@ void handle_interrupt_gicv3(struct pt_regs *regs)
}
set_cputime(from_user ? CPUTIME_MODE_K2U : CPUTIME_MODE_K2K_OUT);
/* for migration by IPI */
if (get_this_cpu_local_var()->flags & CPU_FLAG_NEED_MIGRATE) {
schedule();
irqflags = ihk_mc_spinlock_lock(&v->runq_lock);
/* For migration by IPI or by timesharing */
if (v->flags &
(CPU_FLAG_NEED_MIGRATE | CPU_FLAG_NEED_RESCHED)) {
v->flags &= ~CPU_FLAG_NEED_RESCHED;
do_check = 1;
}
ihk_mc_spinlock_unlock(&v->runq_lock, irqflags);
if (do_check) {
check_signal(0, regs, 0);
schedule();
}
}