From db7d9a4eb700be766cc9f29241483dbb1e748832 Mon Sep 17 00:00:00 2001 From: David S. Miller Date: Sun, 24 Jul 2005 19:36:26 -0700 Subject: [SPARC64]: Move syscall success and newchild state out of thread flags. These two bits were accesses non-atomically from assembler code. So, in order to eliminate any potential races resulting from that, move these pieces of state into two bytes elsewhere in struct thread_info. Signed-off-by: David S. Miller --- arch/sparc64/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/sparc64/kernel/process.c') diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index a0cd2b2494d6..cffb1c8ab4fc 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -621,8 +621,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, memcpy(child_trap_frame, (((struct sparc_stackf *)regs)-1), (TRACEREG_SZ+STACKFRAME_SZ)); t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) | - _TIF_NEWCHILD | (((regs->tstate + 1) & TSTATE_CWP) << TI_FLAG_CWP_SHIFT); + t->new_child = 1; t->ksp = ((unsigned long) child_trap_frame) - STACK_BIAS; t->kregs = (struct pt_regs *)(child_trap_frame+sizeof(struct sparc_stackf)); t->fpsaved[0] = 0; -- cgit v1.2.3-55-g7522