From bd6f56a75bb2a65b3a1b8d14a9787fdaadae71c1 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 11 Oct 2010 23:13:51 -0400 Subject: [PATCH] m68k: Missing syscall_trace() on sigreturn If we leave sigreturn via ret_from_signal, we end up with syscall trace only on entry, leading to very unhappy strace, among other things. Note that this means different behaviours for signals delivered while we were in pagefault and for ones delivered while we were in interrupt... Signed-off-by: Al Viro Signed-off-by: Geert Uytterhoeven --- arch/m68k/kernel/entry.S | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S index 4e49f5777696..1559dea36e55 100644 --- a/arch/m68k/kernel/entry.S +++ b/arch/m68k/kernel/entry.S @@ -99,7 +99,10 @@ do_trace_exit: jra .Lret_from_exception ENTRY(ret_from_signal) - RESTORE_SWITCH_STACK + tstb %curptr@(TASK_INFO+TINFO_FLAGS+2) + jge 1f + jbsr syscall_trace +1: RESTORE_SWITCH_STACK addql #4,%sp /* on 68040 complete pending writebacks if any */ #ifdef CONFIG_M68040