From d3a73acbc26a4a81a01a35fd162973e53d0386f5 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Tue, 15 Apr 2014 12:55:07 +0200 Subject: s390: split TIF bits into CIF, PIF and TIF bits The oi and ni instructions used in entry[64].S to set and clear bits in the thread-flags are not guaranteed to be atomic in regard to other CPUs. Split the TIF bits into CPU, pt_regs and thread-info specific bits. Updates on the TIF bits are done with atomic instructions, updates on CPU and pt_regs bits are done with non-atomic instructions. Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/syscall.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/s390/include/asm/syscall.h') diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 777687055e7b..abad78d5b10c 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -28,7 +28,7 @@ extern const unsigned int sys_call_table_emu[]; static inline long syscall_get_nr(struct task_struct *task, struct pt_regs *regs) { - return test_tsk_thread_flag(task, TIF_SYSCALL) ? + return test_pt_regs_flag(regs, PIF_SYSCALL) ? (regs->int_code & 0xffff) : -1; } -- cgit