rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

 kernel/arch/x86/entry/common.c
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@@ -134,7 +134,7 @@
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 #define EXIT_TO_USERMODE_LOOP_FLAGS				\
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 	(_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_UPROBE |	\
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-	 _TIF_NEED_RESCHED | _TIF_USER_RETURN_NOTIFY | _TIF_PATCH_PENDING)
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+	 _TIF_NEED_RESCHED_MASK | _TIF_USER_RETURN_NOTIFY | _TIF_PATCH_PENDING)
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 static void exit_to_usermode_loop(struct pt_regs *regs, u32 cached_flags)
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 {
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@@ -149,9 +149,16 @@
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 		/* We have work to do. */
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 		local_irq_enable();
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-		if (cached_flags & _TIF_NEED_RESCHED)
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+		if (cached_flags & _TIF_NEED_RESCHED_MASK)
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 			schedule();
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+#ifdef ARCH_RT_DELAYS_SIGNAL_SEND
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+		if (unlikely(current->forced_info.si_signo)) {
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+			struct task_struct *t = current;
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+			force_sig_info(t->forced_info.si_signo, &t->forced_info, t);
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+			t->forced_info.si_signo = 0;
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+		}
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+#endif
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 		if (cached_flags & _TIF_UPROBE)
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 			uprobe_notify_resume(regs);
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