diff options
Diffstat (limited to 'arch/s390/oprofile/init.c')
| -rw-r--r-- | arch/s390/oprofile/init.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 43d9525c36fc..7441857df51b 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -13,23 +13,17 @@ #include <linux/oprofile.h> #include <linux/init.h> #include <asm/processor.h> - -static int __s390_backtrace(void *data, unsigned long address, int reliable) -{ - unsigned int *depth = data; - - if (*depth == 0) - return 1; - (*depth)--; - oprofile_add_trace(address); - return 0; -} +#include <asm/unwind.h> static void s390_backtrace(struct pt_regs *regs, unsigned int depth) { - if (user_mode(regs)) - return; - dump_trace(__s390_backtrace, &depth, NULL, regs->gprs[15]); + struct unwind_state state; + + unwind_for_each_frame(&state, current, regs, 0) { + if (depth-- == 0) + break; + oprofile_add_trace(state.ip); + } } int __init oprofile_arch_init(struct oprofile_operations *ops) |