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authorJoel Stanley <joel@jms.id.au>2016-02-02 13:23:36 +1100
committerJoel Stanley <joel@jms.id.au>2016-02-02 13:23:42 +1100
commitf3f4aeb9ea8954c0da3cf0d12693f9a57f1f4ac7 (patch)
tree3663ab29736373c565d88e941162d37311cc3c75 /arch/x86/kernel/signal.c
parent2a3f5f14fdf2e8fb680af168fa642ef8a9218ffb (diff)
parent849a2d3d9be31368559e6852cf64d749e6903818 (diff)
downloadtalos-obmc-linux-openbmc-20160202-1.tar.gz
talos-obmc-linux-openbmc-20160202-1.zip
Merge tag 'v4.3.5' into dev-4.3openbmc-20160202-1
This is the 4.3.5 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'arch/x86/kernel/signal.c')
-rw-r--r--arch/x86/kernel/signal.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index da52e6bb5c7f..7d2b2ed33dee 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -688,12 +688,15 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
signal_setup_done(failed, ksig, stepping);
}
-#ifdef CONFIG_X86_32
-#define NR_restart_syscall __NR_restart_syscall
-#else /* !CONFIG_X86_32 */
-#define NR_restart_syscall \
- test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall : __NR_restart_syscall
-#endif /* CONFIG_X86_32 */
+static inline unsigned long get_nr_restart_syscall(const struct pt_regs *regs)
+{
+#if defined(CONFIG_X86_32) || !defined(CONFIG_X86_64)
+ return __NR_restart_syscall;
+#else /* !CONFIG_X86_32 && CONFIG_X86_64 */
+ return test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall :
+ __NR_restart_syscall | (regs->orig_ax & __X32_SYSCALL_BIT);
+#endif /* CONFIG_X86_32 || !CONFIG_X86_64 */
+}
/*
* Note that 'init' is a special process: it doesn't get signals it doesn't
@@ -722,7 +725,7 @@ void do_signal(struct pt_regs *regs)
break;
case -ERESTART_RESTARTBLOCK:
- regs->ax = NR_restart_syscall;
+ regs->ax = get_nr_restart_syscall(regs);
regs->ip -= 2;
break;
}
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