diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/lib/test_unwind.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/arch/s390/lib/test_unwind.c b/arch/s390/lib/test_unwind.c index 6bad84c372dc..dcd8946255be 100644 --- a/arch/s390/lib/test_unwind.c +++ b/arch/s390/lib/test_unwind.c @@ -9,12 +9,12 @@ #include <linux/kallsyms.h> #include <linux/kthread.h> #include <linux/module.h> +#include <linux/timer.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/kprobes.h> #include <linux/wait.h> #include <asm/irq.h> -#include <asm/delay.h> #define BT_BUF_SIZE (PAGE_SIZE * 4) @@ -226,31 +226,27 @@ static noinline int unwindme_func1(void *u) return unwindme_func2((struct unwindme *)u); } -static void unwindme_irq_handler(struct ext_code ext_code, - unsigned int param32, - unsigned long param64) +static void unwindme_timer_fn(struct timer_list *unused) { struct unwindme *u = READ_ONCE(unwindme); - if (u && u->task == current) { + if (u) { unwindme = NULL; u->task = NULL; u->ret = unwindme_func1(u); + complete(&u->task_ready); } } +static struct timer_list unwind_timer; + static int test_unwind_irq(struct unwindme *u) { - preempt_disable(); - if (register_external_irq(EXT_IRQ_CLK_COMP, unwindme_irq_handler)) { - pr_info("Couldn't register external interrupt handler"); - return -1; - } - u->task = current; unwindme = u; - udelay(1); - unregister_external_irq(EXT_IRQ_CLK_COMP, unwindme_irq_handler); - preempt_enable(); + init_completion(&u->task_ready); + timer_setup(&unwind_timer, unwindme_timer_fn, 0); + mod_timer(&unwind_timer, jiffies + 1); + wait_for_completion(&u->task_ready); return u->ret; } |