diff options
Diffstat (limited to 'drivers/idle')
-rw-r--r-- | drivers/idle/intel_idle.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index c37ef64d1465..ad0fb0182b4c 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c | |||
@@ -186,13 +186,10 @@ static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state) | |||
186 | local_irq_disable(); | 186 | local_irq_disable(); |
187 | 187 | ||
188 | /* | 188 | /* |
189 | * If the state flag indicates that the TLB will be flushed or if this | 189 | * leave_mm() to avoid costly and often unnecessary wakeups |
190 | * is the deepest c-state supported, do a voluntary leave mm to avoid | 190 | * for flushing the user TLB's associated with the active mm. |
191 | * costly and mostly unnecessary wakeups for flushing the user TLB's | ||
192 | * associated with the active mm. | ||
193 | */ | 191 | */ |
194 | if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED || | 192 | if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED) |
195 | (&dev->states[dev->state_count - 1] == state)) | ||
196 | leave_mm(cpu); | 193 | leave_mm(cpu); |
197 | 194 | ||
198 | if (!(lapic_timer_reliable_states & (1 << (cstate)))) | 195 | if (!(lapic_timer_reliable_states & (1 << (cstate)))) |