diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-03-18 19:07:16 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-03-18 19:07:16 +0900 |
| commit | 7e6b6f2b949a52382f59a93ecbe86e32e4fcec7c (patch) | |
| tree | 646efa98aa16b4d829eb61ea067124ffe42d0d94 /arch/sh/kernel/machine_kexec.c | |
| parent | a6bab7b5c18501e4dd3201ae8ac1dc6da5f07acc (diff) | |
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 <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/machine_kexec.c')
| -rw-r--r-- | arch/sh/kernel/machine_kexec.c | 6 |
1 files changed, 6 insertions, 0 deletions
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 <linux/delay.h> #include <linux/reboot.h> #include <linux/numa.h> +#include <linux/ftrace.h> #include <linux/suspend.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> @@ -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) |