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Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"

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Revert commit bf9ad37dc8. It needs to be better encapsulated and
generalized.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
This commit is contained in:
Thomas Gleixner
2022-03-31 10:36:55 +02:00
parent 787af64d05
commit 7dd5ad2d3e
5 changed files with 0 additions and 68 deletions
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14
kernel/entry/common.c
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@@ -142,18 +142,6 @@ void noinstr exit_to_user_mode(void)
/* Workaround to allow gradual conversion of architecture code */
void __weak arch_do_signal_or_restart(struct pt_regs *regs) { }
#ifdef CONFIG_RT_DELAYED_SIGNALS
static inline void raise_delayed_signal(void)
{
if (unlikely(current->forced_info.si_signo)) {
force_sig_info(&current->forced_info);
current->forced_info.si_signo = 0;
}
}
#else
static inline void raise_delayed_signal(void) { }
#endif
static unsigned long exit_to_user_mode_loop(struct pt_regs *regs,
unsigned long ti_work)
{
@@ -168,8 +156,6 @@ static unsigned long exit_to_user_mode_loop(struct pt_regs *regs,
if (ti_work & _TIF_NEED_RESCHED)
schedule();
raise_delayed_signal();
if (ti_work & _TIF_UPROBE)
uprobe_notify_resume(regs);