diff options
Diffstat (limited to 'arch/arm/kernel/smp.c')
| -rw-r--r-- | arch/arm/kernel/smp.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 421329f5e18..a07d202143c 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -7,6 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/module.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/spinlock.h> @@ -19,6 +20,7 @@ #include <linux/cpu.h> #include <linux/smp.h> #include <linux/seq_file.h> +#include <linux/irq.h> #include <asm/atomic.h> #include <asm/cacheflush.h> @@ -474,25 +476,26 @@ void show_local_irqs(struct seq_file *p) seq_putc(p, '\n'); } -static void ipi_timer(struct pt_regs *regs) +static void ipi_timer(void) { - int user = user_mode(regs); - irq_enter(); - profile_tick(CPU_PROFILING, regs); - update_process_times(user); + profile_tick(CPU_PROFILING); + update_process_times(user_mode(get_irq_regs())); irq_exit(); } #ifdef CONFIG_LOCAL_TIMERS asmlinkage void do_local_timer(struct pt_regs *regs) { + struct pt_regs *old_regs = set_irq_regs(regs); int cpu = smp_processor_id(); if (local_timer_ack()) { irq_stat[cpu].local_timer_irqs++; - ipi_timer(regs); + ipi_timer(); } + + set_irq_regs(old_regs); } #endif @@ -551,6 +554,7 @@ asmlinkage void do_IPI(struct pt_regs *regs) { unsigned int cpu = smp_processor_id(); struct ipi_data *ipi = &per_cpu(ipi_data, cpu); + struct pt_regs *old_regs = set_irq_regs(regs); ipi->ipi_count++; @@ -574,7 +578,7 @@ asmlinkage void do_IPI(struct pt_regs *regs) switch (nextmsg) { case IPI_TIMER: - ipi_timer(regs); + ipi_timer(); break; case IPI_RESCHEDULE: @@ -599,6 +603,8 @@ asmlinkage void do_IPI(struct pt_regs *regs) } } while (msgs); } + + set_irq_regs(old_regs); } void smp_send_reschedule(int cpu) |