From 43a35995562495bd70a87b5d3a2e820036ee6597 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Fri, 11 May 2012 10:57:59 +1000 Subject: [PATCH] m68k: use set_current_blocked() and block_sigmask() As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Acked-by: Oleg Nesterov Cc: Geert Uytterhoeven Acked-by: Greg Ungerer Signed-off-by: Matt Fleming Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- arch/m68k/kernel/signal.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c index 8186982fb320..d8f6960e8fd9 100644 --- a/arch/m68k/kernel/signal.c +++ b/arch/m68k/kernel/signal.c @@ -795,8 +795,7 @@ asmlinkage int do_sigreturn(unsigned long __unused) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - current->blocked = set; - recalc_sigpending(); + set_current_blocked(&set); if (restore_sigcontext(regs, &frame->sc, frame + 1)) goto badframe; @@ -821,8 +820,7 @@ asmlinkage int do_rt_sigreturn(unsigned long __unused) goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - current->blocked = set; - recalc_sigpending(); + set_current_blocked(&set); if (rt_restore_ucontext(regs, sw, &frame->uc)) goto badframe; @@ -1141,10 +1139,7 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, if (err) return; - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); + block_sigmask(ka, sig); if (test_thread_flag(TIF_DELAYED_TRACE)) { regs->sr &= ~0x8000; -- 2.39.5