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signal: sys_sigprocmask() needs retarget_shared_pending() 

sys_sigprocmask() changes current->blocked by hand. Convert this code
to use set_current_blocked().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
This commit is contained in:
Oleg Nesterov 2011-05-09 13:48:56 +02:00
parent b013c39924
commit 2e4f7c7769
1 changed files with 9 additions and 13 deletions
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22
kernel/signal.c
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@ -2900,7 +2900,7 @@ SYSCALL_DEFINE3(sigprocmask, int, how, old_sigset_t __user *, nset,
old_sigset_t __user *, oset)
{
old_sigset_t old_set, new_set;
int error;
sigset_t new_blocked;
old_set = current->blocked.sig[0];
@ -2909,27 +2909,23 @@ SYSCALL_DEFINE3(sigprocmask, int, how, old_sigset_t __user *, nset,
return -EFAULT;
new_set &= ~(sigmask(SIGKILL) | sigmask(SIGSTOP));
error = 0;
spin_lock_irq(&current->sighand->siglock);
new_blocked = current->blocked;
switch (how) {
default:
error = -EINVAL;
break;
case SIG_BLOCK:
sigaddsetmask(&current->blocked, new_set);
sigaddsetmask(&new_blocked, new_set);
break;
case SIG_UNBLOCK:
sigdelsetmask(&current->blocked, new_set);
sigdelsetmask(&new_blocked, new_set);
break;
case SIG_SETMASK:
current->blocked.sig[0] = new_set;
new_blocked.sig[0] = new_set;
break;
default:
return -EINVAL;
}
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (error)
return error;
set_current_blocked(&new_blocked);
}
if (oset) {