From 7e6b6f2b949a52382f59a93ecbe86e32e4fcec7c Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 18 Mar 2009 19:07:16 +0900 Subject: [PATCH] sh: kexec jump: fix for ftrace. Save and restore ftrace state when returning from kexec jump in machine_kexec(). Follows the x86 change. Signed-off-by: Paul Mundt --- arch/sh/kernel/machine_kexec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 69268c0d806..cc7c29b0dc8 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include #include @@ -78,6 +79,7 @@ void machine_kexec(struct kimage *image) relocate_new_kernel_t rnk; unsigned long entry; unsigned long *ptr; + int save_ftrace_enabled; /* * Nicked from the mips version of machine_kexec(): @@ -97,6 +99,8 @@ void machine_kexec(struct kimage *image) save_processor_state(); #endif + save_ftrace_enabled = __ftrace_enabled_save(); + /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); @@ -138,6 +142,8 @@ void machine_kexec(struct kimage *image) *ptr = virt_to_phys(*ptr); } #endif + + __ftrace_enabled_restore(save_ftrace_enabled); } void arch_crash_save_vmcoreinfo(void) -- 2.41.1