From f3b5e822739c70663aee8584b7993afe055431c9 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Fri, 11 May 2012 10:58:00 +1000 Subject: cris: 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: Mikael Starvik Acked-by: Jesper Nilsson Signed-off-by: Matt Fleming Signed-off-by: Andrew Morton Signed-off-by: Al Viro --- arch/cris/arch-v10/kernel/signal.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) (limited to 'arch/cris/arch-v10') diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c index 170f4970d59..df40fa80480 100644 --- a/arch/cris/arch-v10/kernel/signal.c +++ b/arch/cris/arch-v10/kernel/signal.c @@ -177,10 +177,7 @@ asmlinkage int sys_sigreturn(long r10, long r11, long r12, long r13, long mof, goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(regs, &frame->sc)) goto badframe; @@ -216,10 +213,7 @@ asmlinkage int sys_rt_sigreturn(long r10, long r11, long r12, long r13, goto badframe; sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; @@ -461,15 +455,9 @@ static inline int handle_signal(int canrestart, unsigned long sig, else ret = setup_frame(sig, ka, oldset, regs); - if (ret == 0) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, - &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + if (ret == 0) + block_sigmask(ka, sig); + return ret; } -- cgit v1.2.3-70-g09d2