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-rw-r--r--kernel/sched/cputime.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 372692bd537..53f5b12f282 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -10,11 +10,11 @@
10 10
11/* 11/*
12 * There are no locks covering percpu hardirq/softirq time. 12 * There are no locks covering percpu hardirq/softirq time.
13 * They are only modified in account_system_vtime, on corresponding CPU 13 * They are only modified in vtime_account, on corresponding CPU
14 * with interrupts disabled. So, writes are safe. 14 * with interrupts disabled. So, writes are safe.
15 * They are read and saved off onto struct rq in update_rq_clock(). 15 * They are read and saved off onto struct rq in update_rq_clock().
16 * This may result in other CPU reading this CPU's irq time and can 16 * This may result in other CPU reading this CPU's irq time and can
17 * race with irq/account_system_vtime on this CPU. We would either get old 17 * race with irq/vtime_account on this CPU. We would either get old
18 * or new value with a side effect of accounting a slice of irq time to wrong 18 * or new value with a side effect of accounting a slice of irq time to wrong
19 * task when irq is in progress while we read rq->clock. That is a worthy 19 * task when irq is in progress while we read rq->clock. That is a worthy
20 * compromise in place of having locks on each irq in account_system_time. 20 * compromise in place of having locks on each irq in account_system_time.
@@ -43,7 +43,7 @@ DEFINE_PER_CPU(seqcount_t, irq_time_seq);
43 * Called before incrementing preempt_count on {soft,}irq_enter 43 * Called before incrementing preempt_count on {soft,}irq_enter
44 * and before decrementing preempt_count on {soft,}irq_exit. 44 * and before decrementing preempt_count on {soft,}irq_exit.
45 */ 45 */
46void account_system_vtime(struct task_struct *curr) 46void vtime_account(struct task_struct *curr)
47{ 47{
48 unsigned long flags; 48 unsigned long flags;
49 s64 delta; 49 s64 delta;
@@ -73,7 +73,7 @@ void account_system_vtime(struct task_struct *curr)
73 irq_time_write_end(); 73 irq_time_write_end();
74 local_irq_restore(flags); 74 local_irq_restore(flags);
75} 75}
76EXPORT_SYMBOL_GPL(account_system_vtime); 76EXPORT_SYMBOL_GPL(vtime_account);
77 77
78static int irqtime_account_hi_update(void) 78static int irqtime_account_hi_update(void)
79{ 79{