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Searched refs:sighand (Results 1 - 25 of 79) sorted by relevance

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/kernel/linux/linux-5.10/fs/
H A Dsignalfd.c10 * Added sighand-detach notification.
18 * Attach to the sighand only during read() and poll().
36 void signalfd_cleanup(struct sighand_struct *sighand) in signalfd_cleanup() argument
38 wake_up_pollfree(&sighand->signalfd_wqh); in signalfd_cleanup()
56 poll_wait(file, &current->sighand->signalfd_wqh, wait); in signalfd_poll()
58 spin_lock_irq(&current->sighand->siglock); in signalfd_poll()
63 spin_unlock_irq(&current->sighand->siglock); in signalfd_poll()
162 spin_lock_irq(&current->sighand->siglock); in signalfd_dequeue()
171 spin_unlock_irq(&current->sighand->siglock); in signalfd_dequeue()
175 add_wait_queue(&current->sighand in signalfd_dequeue()
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/kernel/linux/linux-6.6/fs/
H A Dsignalfd.c10 * Added sighand-detach notification.
18 * Attach to the sighand only during read() and poll().
36 void signalfd_cleanup(struct sighand_struct *sighand) in signalfd_cleanup() argument
38 wake_up_pollfree(&sighand->signalfd_wqh); in signalfd_cleanup()
56 poll_wait(file, &current->sighand->signalfd_wqh, wait); in signalfd_poll()
58 spin_lock_irq(&current->sighand->siglock); in signalfd_poll()
63 spin_unlock_irq(&current->sighand->siglock); in signalfd_poll()
162 spin_lock_irq(&current->sighand->siglock); in signalfd_dequeue()
171 spin_unlock_irq(&current->sighand->siglock); in signalfd_dequeue()
175 add_wait_queue(&current->sighand in signalfd_dequeue()
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/kernel/linux/linux-5.10/include/linux/
H A Dsignalfd.h21 if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh))) in signalfd_notify()
22 wake_up(&tsk->sighand->signalfd_wqh); in signalfd_notify()
25 extern void signalfd_cleanup(struct sighand_struct *sighand);
31 static inline void signalfd_cleanup(struct sighand_struct *sighand) { } in signalfd_cleanup() argument
/kernel/linux/linux-6.6/include/linux/
H A Dsignalfd.h21 if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh))) in signalfd_notify()
22 wake_up(&tsk->sighand->signalfd_wqh); in signalfd_notify()
25 extern void signalfd_cleanup(struct sighand_struct *sighand);
31 static inline void signalfd_cleanup(struct sighand_struct *sighand) { } in signalfd_cleanup() argument
/kernel/linux/linux-5.10/drivers/tty/
H A Dtty_jobctrl.c19 current->sighand->action[sig-1].sa.sa_handler == SIG_IGN); in is_ignored()
78 spin_lock_irqsave(&p->sighand->siglock, flags); in proc_clear_tty()
81 spin_unlock_irqrestore(&p->sighand->siglock, flags); in proc_clear_tty()
93 * sighand lock
121 spin_lock_irq(&current->sighand->siglock); in proc_set_tty()
123 spin_unlock_irq(&current->sighand->siglock); in proc_set_tty()
132 spin_lock_irq(&current->sighand->siglock); in tty_open_proc_set_tty()
153 spin_unlock_irq(&current->sighand->siglock); in tty_open_proc_set_tty()
162 spin_lock_irqsave(&current->sighand->siglock, flags); in get_current_tty()
164 spin_unlock_irqrestore(&current->sighand in get_current_tty()
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/kernel/linux/linux-6.6/drivers/tty/
H A Dtty_jobctrl.c19 current->sighand->action[sig-1].sa.sa_handler == SIG_IGN); in is_ignored()
80 spin_lock_irqsave(&p->sighand->siglock, flags); in proc_clear_tty()
83 spin_unlock_irqrestore(&p->sighand->siglock, flags); in proc_clear_tty()
96 * sighand lock
124 spin_lock_irq(&current->sighand->siglock); in proc_set_tty()
126 spin_unlock_irq(&current->sighand->siglock); in proc_set_tty()
135 spin_lock_irq(&current->sighand->siglock); in tty_open_proc_set_tty()
156 spin_unlock_irq(&current->sighand->siglock); in tty_open_proc_set_tty()
165 spin_lock_irqsave(&current->sighand->siglock, flags); in get_current_tty()
167 spin_unlock_irqrestore(&current->sighand in get_current_tty()
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/kernel/linux/linux-6.6/kernel/
H A Dsignal.c71 return t->sighand->action[sig - 1].sa.sa_handler; in sig_handler()
197 spin_lock_irq(&current->sighand->siglock); in calculate_sigpending()
200 spin_unlock_irq(&current->sighand->siglock); in calculate_sigpending()
281 * Must be called with @task->sighand->siglock held.
312 * Must be called with @task->sighand->siglock held.
336 * Must be called with @task->sighand->siglock held.
361 * Must be called with @task->sighand->siglock held.
482 spin_lock_irqsave(&t->sighand->siglock, flags); in flush_signals()
486 spin_unlock_irqrestore(&t->sighand->siglock, flags); in flush_signals()
519 spin_lock_irqsave(&tsk->sighand in flush_itimer_signals()
1404 struct sighand_struct *sighand; __lock_task_sighand() local
1436 struct sighand_struct *sighand; lockdep_assert_task_sighand_held() local
2175 struct sighand_struct *sighand; do_notify_parent_cldstop() local
2662 struct sighand_struct *sighand = current->sighand; get_signal() local
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H A Dexit.c154 struct sighand_struct *sighand; in __exit_signal() local
158 sighand = rcu_dereference_check(tsk->sighand, in __exit_signal()
160 spin_lock(&sighand->siglock); in __exit_signal()
214 tsk->sighand = NULL; in __exit_signal()
215 spin_unlock(&sighand->siglock); in __exit_signal()
217 __cleanup_sighand(sighand); in __exit_signal()
417 spin_lock_irq(&tsk->sighand->siglock); in coredump_task_exit()
420 spin_unlock_irq(&tsk->sighand->siglock); in coredump_task_exit()
802 struct sighand_struct *sighand in synchronize_group_exit() local
1020 struct sighand_struct *const sighand = current->sighand; do_group_exit() local
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H A Dptrace.c133 spin_lock(&child->sighand->siglock); in __ptrace_unlink()
171 spin_unlock(&child->sighand->siglock); in __ptrace_unlink()
203 spin_lock_irq(&task->sighand->siglock); in ptrace_freeze_traced()
209 spin_unlock_irq(&task->sighand->siglock); in ptrace_freeze_traced()
245 * Grabs and releases tasklist_lock and @child->sighand->siglock.
264 * child->sighand can't be NULL, release_task() in ptrace_check_attach()
453 spin_lock(&task->sighand->siglock); in ptrace_attach()
478 spin_unlock(&task->sighand->siglock); in ptrace_attach()
572 else if (ignoring_children(tracer->sighand)) { in __ptrace_detach()
763 spin_lock_irq(&child->sighand in ptrace_peek_siginfo()
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H A Dfork.c440 /* SLAB cache for sighand_struct structures (tsk->sighand) */
1148 * the sighand lock in case orig has changed between now and in dup_task_struct()
1818 refcount_inc(&current->sighand->count); in copy_sighand()
1822 RCU_INIT_POINTER(tsk->sighand, sig); in copy_sighand()
1827 spin_lock_irq(&current->sighand->siglock); in copy_sighand()
1828 memcpy(sig->action, current->sighand->action, sizeof(sig->action)); in copy_sighand()
1829 spin_unlock_irq(&current->sighand->siglock); in copy_sighand()
1838 void __cleanup_sighand(struct sighand_struct *sighand) in __cleanup_sighand() argument
1840 if (refcount_dec_and_test(&sighand->count)) { in __cleanup_sighand()
1841 signalfd_cleanup(sighand); in __cleanup_sighand()
3268 struct sighand_struct *sighand = data; sighand_ctor() local
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H A Dpid_namespace.c185 spin_lock_irq(&me->sighand->siglock); in zap_pid_ns_processes()
186 me->sighand->action[SIGCHLD - 1].sa.sa_handler = SIG_IGN; in zap_pid_ns_processes()
187 spin_unlock_irq(&me->sighand->siglock); in zap_pid_ns_processes()
/kernel/linux/linux-5.10/kernel/
H A Dsignal.c69 return t->sighand->action[sig - 1].sa.sa_handler; in sig_handler()
196 spin_lock_irq(&current->sighand->siglock); in calculate_sigpending()
199 spin_unlock_irq(&current->sighand->siglock); in calculate_sigpending()
280 * Must be called with @task->sighand->siglock held.
311 * Must be called with @task->sighand->siglock held.
335 * Must be called with @task->sighand->siglock held.
360 * Must be called with @task->sighand->siglock held.
480 spin_lock_irqsave(&t->sighand->siglock, flags); in flush_signals()
484 spin_unlock_irqrestore(&t->sighand->siglock, flags); in flush_signals()
517 spin_lock_irqsave(&tsk->sighand in flush_itimer_signals()
1372 struct sighand_struct *sighand; __lock_task_sighand() local
2024 struct sighand_struct *sighand; do_notify_parent_cldstop() local
2519 struct sighand_struct *sighand = current->sighand; get_signal() local
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H A Dexit.c151 struct sighand_struct *sighand; in __exit_signal() local
155 sighand = rcu_dereference_check(tsk->sighand, in __exit_signal()
157 spin_lock(&sighand->siglock); in __exit_signal()
211 tsk->sighand = NULL; in __exit_signal()
212 spin_unlock(&sighand->siglock); in __exit_signal()
214 __cleanup_sighand(sighand); in __exit_signal()
982 struct sighand_struct *const sighand = current->sighand; in do_group_exit() local
984 spin_lock_irq(&sighand in do_group_exit()
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H A Dptrace.c131 spin_lock(&child->sighand->siglock); in __ptrace_unlink()
169 spin_unlock(&child->sighand->siglock); in __ptrace_unlink()
196 spin_lock_irq(&task->sighand->siglock); in ptrace_freeze_traced()
202 spin_unlock_irq(&task->sighand->siglock); in ptrace_freeze_traced()
218 spin_lock_irq(&task->sighand->siglock); in ptrace_unfreeze_traced()
225 spin_unlock_irq(&task->sighand->siglock); in ptrace_unfreeze_traced()
240 * Grabs and releases tasklist_lock and @child->sighand->siglock.
260 * child->sighand can't be NULL, release_task() in ptrace_check_attach()
459 spin_lock(&task->sighand->siglock); in ptrace_attach()
482 spin_unlock(&task->sighand in ptrace_attach()
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H A Dseccomp.c341 assert_spin_locked(&current->sighand->siglock); in seccomp_may_assign_mode()
355 assert_spin_locked(&task->sighand->siglock); in seccomp_assign_mode()
386 * Expects sighand and cred_guard_mutex locks to be held.
397 assert_spin_locked(&current->sighand->siglock); in seccomp_can_sync_threads()
481 * Expects sighand and cred_guard_mutex locks to be held, and for
491 assert_spin_locked(&current->sighand->siglock); in seccomp_sync_threads()
617 * Caller must be holding current->sighand->siglock lock.
630 assert_spin_locked(&current->sighand->siglock); in seccomp_attach_filter()
1101 spin_lock_irq(&current->sighand->siglock); in seccomp_set_mode_strict()
1113 spin_unlock_irq(&current->sighand in seccomp_set_mode_strict()
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H A Dfork.c335 /* SLAB cache for sighand_struct structures (tsk->sighand) */
923 * the sighand lock in case orig has changed between now and in dup_task_struct()
1544 refcount_inc(&current->sighand->count); in copy_sighand()
1548 RCU_INIT_POINTER(tsk->sighand, sig); in copy_sighand()
1553 spin_lock_irq(&current->sighand->siglock); in copy_sighand()
1554 memcpy(sig->action, current->sighand->action, sizeof(sig->action)); in copy_sighand()
1555 spin_unlock_irq(&current->sighand->siglock); in copy_sighand()
1564 void __cleanup_sighand(struct sighand_struct *sighand) in __cleanup_sighand() argument
1566 if (refcount_dec_and_test(&sighand->count)) { in __cleanup_sighand()
1567 signalfd_cleanup(sighand); in __cleanup_sighand()
2848 struct sighand_struct *sighand = data; sighand_ctor() local
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H A Dpid_namespace.c189 spin_lock_irq(&me->sighand->siglock); in zap_pid_ns_processes()
190 me->sighand->action[SIGCHLD - 1].sa.sa_handler = SIG_IGN; in zap_pid_ns_processes()
191 spin_unlock_irq(&me->sighand->siglock); in zap_pid_ns_processes()
/kernel/linux/linux-5.10/kernel/time/
H A Ditimer.c53 spin_lock_irq(&tsk->sighand->siglock); in get_cpu_itimer()
70 spin_unlock_irq(&tsk->sighand->siglock); in get_cpu_itimer()
82 spin_lock_irq(&tsk->sighand->siglock); in do_getitimer()
86 spin_unlock_irq(&tsk->sighand->siglock); in do_getitimer()
178 spin_lock_irq(&tsk->sighand->siglock); in set_cpu_itimer()
192 spin_unlock_irq(&tsk->sighand->siglock); in set_cpu_itimer()
216 spin_lock_irq(&tsk->sighand->siglock); in do_setitimer()
225 spin_unlock_irq(&tsk->sighand->siglock); in do_setitimer()
238 spin_unlock_irq(&tsk->sighand->siglock); in do_setitimer()
H A Dposix-cpu-timers.c42 spin_lock_irq(&task->sighand->siglock); in update_rlimit_cpu()
44 spin_unlock_irq(&task->sighand->siglock); in update_rlimit_cpu()
263 * with task sighand lock held.
417 struct sighand_struct *sighand; in posix_cpu_timer_del() local
428 * Protect against sighand release/switch in exit/exec and process/ in posix_cpu_timer_del()
431 sighand = lock_task_sighand(p, &flags); in posix_cpu_timer_del()
432 if (unlikely(sighand == NULL)) { in posix_cpu_timer_del()
497 * expire later. This must be called with the sighand lock held.
578 struct sighand_struct *sighand; in posix_cpu_timer_set() local
601 * Protect against sighand releas in posix_cpu_timer_set()
987 struct sighand_struct *sighand; posix_cpu_timer_rearm() local
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/kernel/linux/linux-6.6/kernel/time/
H A Ditimer.c53 spin_lock_irq(&tsk->sighand->siglock); in get_cpu_itimer()
70 spin_unlock_irq(&tsk->sighand->siglock); in get_cpu_itimer()
82 spin_lock_irq(&tsk->sighand->siglock); in do_getitimer()
86 spin_unlock_irq(&tsk->sighand->siglock); in do_getitimer()
178 spin_lock_irq(&tsk->sighand->siglock); in set_cpu_itimer()
192 spin_unlock_irq(&tsk->sighand->siglock); in set_cpu_itimer()
216 spin_lock_irq(&tsk->sighand->siglock); in do_setitimer()
225 spin_unlock_irq(&tsk->sighand->siglock); in do_setitimer()
238 spin_unlock_irq(&tsk->sighand->siglock); in do_setitimer()
H A Dposix-cpu-timers.c269 * with task sighand lock held.
474 struct sighand_struct *sighand; in posix_cpu_timer_del() local
485 * Protect against sighand release/switch in exit/exec and process/ in posix_cpu_timer_del()
488 sighand = lock_task_sighand(p, &flags); in posix_cpu_timer_del()
489 if (unlikely(sighand == NULL)) { in posix_cpu_timer_del()
554 * expire later. This must be called with the sighand lock held.
629 struct sighand_struct *sighand; in posix_cpu_timer_set() local
652 * Protect against sighand release/switch in exit/exec and p->cpu_timers in posix_cpu_timer_set()
655 sighand = lock_task_sighand(p, &flags); in posix_cpu_timer_set()
660 if (unlikely(sighand in posix_cpu_timer_set()
1051 struct sighand_struct *sighand; posix_cpu_timer_rearm() local
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/kernel/linux/linux-5.10/include/linux/sched/
H A Dsignal.h17 * Types defining task->signal and task->sighand and APIs using them:
285 spin_lock_irq(&task->sighand->siglock); in kernel_dequeue_signal()
287 spin_unlock_irq(&task->sighand->siglock); in kernel_dequeue_signal()
294 spin_lock_irq(&current->sighand->siglock); in kernel_signal_stop()
297 spin_unlock_irq(&current->sighand->siglock); in kernel_signal_stop()
412 * callers must hold sighand->siglock.
706 (void)__cond_lock(&task->sighand->siglock, ret); in lock_task_sighand()
713 spin_unlock_irqrestore(&task->sighand->siglock, *flags); in unlock_task_sighand()
/kernel/linux/linux-6.6/include/linux/sched/
H A Dsignal.h17 * Types defining task->signal and task->sighand and APIs using them:
288 spin_lock_irq(&task->sighand->siglock); in kernel_dequeue_signal()
290 spin_unlock_irq(&task->sighand->siglock); in kernel_dequeue_signal()
297 spin_lock_irq(&current->sighand->siglock); in kernel_signal_stop()
302 spin_unlock_irq(&current->sighand->siglock); in kernel_signal_stop()
442 * callers must hold sighand->siglock.
743 (void)__cond_lock(&task->sighand->siglock, ret); in lock_task_sighand()
750 spin_unlock_irqrestore(&task->sighand->siglock, *flags); in unlock_task_sighand()
/kernel/linux/linux-5.10/fs/proc/
H A Dtask_nommu.c67 if (current->sighand && refcount_read(&current->sighand->count) > 1) in task_mem()
68 sbytes += kobjsize(current->sighand); in task_mem()
70 bytes += kobjsize(current->sighand); in task_mem()
/kernel/linux/linux-6.6/fs/proc/
H A Dtask_nommu.c65 if (current->sighand && refcount_read(&current->sighand->count) > 1) in task_mem()
66 sbytes += kobjsize(current->sighand); in task_mem()
68 bytes += kobjsize(current->sighand); in task_mem()

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