Cache the values of current->signal/sighand. Shrinks .text a bit and makes
the code more readable. Also, remove "sigset_t *mask", it is pointless
because in fact we save the constant offset.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
struct pt_regs *regs, void *cookie)
{
int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka,
struct pt_regs *regs, void *cookie)
{
- sigset_t *mask = ¤t->blocked;
- int signr = 0;
+ struct sighand_struct *sighand = current->sighand;
+ struct signal_struct *signal = current->signal;
+ int signr;
- spin_lock_irq(¤t->sighand->siglock);
+ spin_lock_irq(&sighand->siglock);
- if (unlikely(current->signal->flags & SIGNAL_CLD_MASK)) {
- int why = (current->signal->flags & SIGNAL_STOP_CONTINUED)
+ if (unlikely(signal->flags & SIGNAL_CLD_MASK)) {
+ int why = (signal->flags & SIGNAL_STOP_CONTINUED)
? CLD_CONTINUED : CLD_STOPPED;
? CLD_CONTINUED : CLD_STOPPED;
- current->signal->flags &= ~SIGNAL_CLD_MASK;
- spin_unlock_irq(¤t->sighand->siglock);
+ signal->flags &= ~SIGNAL_CLD_MASK;
+ spin_unlock_irq(&sighand->siglock);
read_lock(&tasklist_lock);
do_notify_parent_cldstop(current->group_leader, why);
read_lock(&tasklist_lock);
do_notify_parent_cldstop(current->group_leader, why);
for (;;) {
struct k_sigaction *ka;
for (;;) {
struct k_sigaction *ka;
- if (unlikely(current->signal->group_stop_count > 0) &&
+ if (unlikely(signal->group_stop_count > 0) &&
do_signal_stop(0))
goto relock;
do_signal_stop(0))
goto relock;
- signr = dequeue_signal(current, mask, info);
-
+ signr = dequeue_signal(current, ¤t->blocked, info);
if (!signr)
break; /* will return 0 */
if (!signr)
break; /* will return 0 */
- ka = ¤t->sighand->action[signr-1];
+ ka = &sighand->action[signr-1];
if (ka->sa.sa_handler == SIG_IGN) /* Do nothing. */
continue;
if (ka->sa.sa_handler != SIG_DFL) {
if (ka->sa.sa_handler == SIG_IGN) /* Do nothing. */
continue;
if (ka->sa.sa_handler != SIG_DFL) {
* We need to check for that and bail out if necessary.
*/
if (signr != SIGSTOP) {
* We need to check for that and bail out if necessary.
*/
if (signr != SIGSTOP) {
- spin_unlock_irq(¤t->sighand->siglock);
+ spin_unlock_irq(&sighand->siglock);
/* signals can be posted during this window */
if (is_current_pgrp_orphaned())
goto relock;
/* signals can be posted during this window */
if (is_current_pgrp_orphaned())
goto relock;
- spin_lock_irq(¤t->sighand->siglock);
+ spin_lock_irq(&sighand->siglock);
}
if (likely(do_signal_stop(signr))) {
}
if (likely(do_signal_stop(signr))) {
- spin_unlock_irq(¤t->sighand->siglock);
+ spin_unlock_irq(&sighand->siglock);
/*
* Anything else is fatal, maybe with a core dump.
/*
* Anything else is fatal, maybe with a core dump.
do_group_exit(signr);
/* NOTREACHED */
}
do_group_exit(signr);
/* NOTREACHED */
}
- spin_unlock_irq(¤t->sighand->siglock);
+ spin_unlock_irq(&sighand->siglock);