diff options
| -rw-r--r-- | arch/alpha/kernel/time.c | 15 | ||||
| -rw-r--r-- | arch/blackfin/kernel/time.c | 8 | ||||
| -rw-r--r-- | arch/frv/kernel/time.c | 6 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/time.c | 12 | ||||
| -rw-r--r-- | arch/sh/kernel/timers/timer-cmt.c | 9 | ||||
| -rw-r--r-- | arch/sh/kernel/timers/timer-mtu2.c | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/pcic.c | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/time.c | 7 |
8 files changed, 28 insertions, 33 deletions
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 1dd50d07693..75480cab089 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -119,13 +119,8 @@ irqreturn_t timer_interrupt(int irq, void *dev) state.partial_tick = delta & ((1UL << FIX_SHIFT) - 1); nticks = delta >> FIX_SHIFT; - while (nticks > 0) { - do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - nticks--; - } + if (nticks) + do_timer(nticks); /* * If we have an externally synchronized Linux clock, then update @@ -141,6 +136,12 @@ irqreturn_t timer_interrupt(int irq, void *dev) } write_sequnlock(&xtime_lock); + +#ifndef CONFIG_SMP + while (nticks--) + update_process_times(user_mode(get_irq_regs())); +#endif + return IRQ_HANDLED; } diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c index 5bd64e341df..9bdc8f99183 100644 --- a/arch/blackfin/kernel/time.c +++ b/arch/blackfin/kernel/time.c @@ -137,9 +137,6 @@ irqreturn_t timer_interrupt(int irq, void *dummy) do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif profile_tick(CPU_PROFILING); /* @@ -161,6 +158,11 @@ irqreturn_t timer_interrupt(int irq, void *dummy) last_rtc_update = xtime.tv_sec - 600; } write_sequnlock(&xtime_lock); + +#ifndef CONFIG_SMP + update_process_times(user_mode(get_irq_regs())); +#endif + return IRQ_HANDLED; } diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c index 925fb0199a0..69f6a4ef5d6 100644 --- a/arch/frv/kernel/time.c +++ b/arch/frv/kernel/time.c @@ -63,6 +63,7 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) /* last time the cmos clock got updated */ static long last_rtc_update = 0; + profile_tick(CPU_PROFILING); /* * Here we are in the timer irq handler. We just have irqs locally * disabled but we don't know if the timer_bh is running on the other @@ -73,8 +74,6 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) write_seqlock(&xtime_lock); do_timer(1); - update_process_times(user_mode(get_irq_regs())); - profile_tick(CPU_PROFILING); /* * If we have an externally synchronized Linux clock, then update @@ -99,6 +98,9 @@ static irqreturn_t timer_interrupt(int irq, void *dummy) #endif /* CONFIG_HEARTBEAT */ write_sequnlock(&xtime_lock); + + update_process_times(user_mode(get_irq_regs())); + return IRQ_HANDLED; } diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c index 89cdbcaeb45..0ccfb2ad638 100644 --- a/arch/m68knommu/kernel/time.c +++ b/arch/m68knommu/kernel/time.c @@ -42,14 +42,12 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy) /* last time the cmos clock got updated */ static long last_rtc_update=0; + if (current->pid) + profile_tick(CPU_PROFILING); + write_seqlock(&xtime_lock); do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - if (current->pid) - profile_tick(CPU_PROFILING); /* * If we have an externally synchronized Linux clock, then update @@ -67,6 +65,10 @@ irqreturn_t arch_timer_interrupt(int irq, void *dummy) } write_sequnlock(&xtime_lock); + +#ifndef CONFIG_SMP + update_process_times(user_mode(get_irq_regs())); +#endif return(IRQ_HANDLED); } diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c index 499e07beebe..71312324b5d 100644 --- a/arch/sh/kernel/timers/timer-cmt.c +++ b/arch/sh/kernel/timers/timer-cmt.c @@ -100,16 +100,7 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id) timer_status &= ~0x80; ctrl_outw(timer_status, CMT_CMCSR_0); - /* - * Here we are in the timer irq handler. We just have irqs locally - * disabled but we don't know if the timer_bh is running on the other - * CPU. We need to avoid to SMP race with it. NOTE: we don' t need - * the irq version of write_lock because as just said we have irq - * locally disabled. -arca - */ - write_seqlock(&xtime_lock); handle_timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/sh/kernel/timers/timer-mtu2.c b/arch/sh/kernel/timers/timer-mtu2.c index b7499a2a918..463cd08f951 100644 --- a/arch/sh/kernel/timers/timer-mtu2.c +++ b/arch/sh/kernel/timers/timer-mtu2.c @@ -100,9 +100,7 @@ static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id) ctrl_outb(timer_status, MTU2_TSR_1); /* Do timer tick */ - write_seqlock(&xtime_lock); handle_timer_tick(); - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index 4cd5d7818dc..a6a6f982337 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -713,10 +713,10 @@ static irqreturn_t pcic_timer_handler (int irq, void *h) write_seqlock(&xtime_lock); /* Dummy, to show that we remember */ pcic_clear_clock_irq(); do_timer(1); + write_sequnlock(&xtime_lock); #ifndef CONFIG_SMP update_process_times(user_mode(get_irq_regs())); #endif - write_sequnlock(&xtime_lock); return IRQ_HANDLED; } diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c index 00b393c3a4a..cfaf22c05bc 100644 --- a/arch/sparc/kernel/time.c +++ b/arch/sparc/kernel/time.c @@ -128,10 +128,6 @@ irqreturn_t timer_interrupt(int irq, void *dev_id) clear_clock_irq(); do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - /* Determine when to update the Mostek clock. */ if (ntp_synced() && @@ -145,6 +141,9 @@ irqreturn_t timer_interrupt(int irq, void *dev_id) } write_sequnlock(&xtime_lock); +#ifndef CONFIG_SMP + update_process_times(user_mode(get_irq_regs())); +#endif return IRQ_HANDLED; } |