linux-kernel - [PATCH 1/4] signal/x86: Factor out nosig handling.

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Message-Id: <20180320023857.1885-2-gniibe@fsij.org>
Date:   Tue, 20 Mar 2018 11:38:54 +0900
From:   NIIBE Yutaka <gniibe@...j.org>
To:     linux-kernel@...r.kernel.org
Cc:     gniibe@...j.org
Subject: [PATCH 1/4] signal/x86: Factor out nosig handling.

Make a function for swing at the ball and miss.

Signed-off-by: NIIBE Yutaka <gniibe@...j.org>
---
 arch/x86/include/asm/signal.h | 1 +
 arch/x86/kernel/signal.c      | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 5f9012ff52ed..6517df6d9938 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -36,6 +36,7 @@ typedef sigset_t compat_sigset_t;
 #include <uapi/asm/signal.h>
 #ifndef __ASSEMBLY__
 extern void do_signal(struct pt_regs *regs);
+extern void nosig_restart_syscall(struct pt_regs *regs);
 
 #define __ARCH_HAS_SA_RESTORER
 
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 4cdc0b27ec82..cdfb82031243 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -812,6 +812,11 @@ void do_signal(struct pt_regs *regs)
 		return;
 	}
 
+	nosig_restart_syscall(regs);
+}
+
+void nosig_restart_syscall(struct pt_regs *regs)
+{
 	/* Did we come from a system call? */
 	if (syscall_get_nr(current, regs) >= 0) {
 		/* Restart the system call - no handlers present */
-- 
2.11.0