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authorMatt Fleming <matt.fleming@intel.com>2012-05-11 10:58:58 +1000
committerAl Viro <viro@zeniv.linux.org.uk>2012-05-21 23:52:31 -0400
commitade7728b4e9aac4cc82117e3e35c5745b7d16037 (patch)
tree130ae23812b27cfffb650c87c0116c8eac90fd02 /arch/parisc/kernel
parent68f3f16d9ad0f1e28ab3fd0001ab5798c41f15a3 (diff)
downloadvexpress-lsk-ade7728b4e9aac4cc82117e3e35c5745b7d16037.tar.gz
parisc: 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 <oleg@redhat.com> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/parisc/kernel')
-rw-r--r--arch/parisc/kernel/signal.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 12c1ed33dc1..bd36152b780 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -131,10 +131,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
}
sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
+ set_current_blocked(&set);
/* Good thing we saved the old gr[30], eh? */
#ifdef CONFIG_64BIT
@@ -454,12 +451,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
if (!setup_rt_frame(sig, ka, info, oldset, regs, in_syscall))
return 0;
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
+ block_sigmask(ka, sig);
tracehook_signal_handler(sig, info, ka, regs,
test_thread_flag(TIF_SINGLESTEP) ||