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-rw-r--r--arch/x86/kernel/machine_kexec_32.c16
-rw-r--r--kernel/kexec.c2
2 files changed, 15 insertions, 3 deletions
diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c
index 5c8e7735c896..0732adba05ca 100644
--- a/arch/x86/kernel/machine_kexec_32.c
+++ b/arch/x86/kernel/machine_kexec_32.c
@@ -12,6 +12,7 @@
12#include <linux/init.h> 12#include <linux/init.h>
13#include <linux/numa.h> 13#include <linux/numa.h>
14#include <linux/ftrace.h> 14#include <linux/ftrace.h>
15#include <linux/suspend.h>
15 16
16#include <asm/pgtable.h> 17#include <asm/pgtable.h>
17#include <asm/pgalloc.h> 18#include <asm/pgalloc.h>
@@ -113,6 +114,7 @@ void machine_kexec(struct kimage *image)
113{ 114{
114 unsigned long page_list[PAGES_NR]; 115 unsigned long page_list[PAGES_NR];
115 void *control_page; 116 void *control_page;
117 int save_ftrace_enabled;
116 asmlinkage unsigned long 118 asmlinkage unsigned long
117 (*relocate_kernel_ptr)(unsigned long indirection_page, 119 (*relocate_kernel_ptr)(unsigned long indirection_page,
118 unsigned long control_page, 120 unsigned long control_page,
@@ -120,7 +122,12 @@ void machine_kexec(struct kimage *image)
120 unsigned int has_pae, 122 unsigned int has_pae,
121 unsigned int preserve_context); 123 unsigned int preserve_context);
122 124
123 tracer_disable(); 125#ifdef CONFIG_KEXEC_JUMP
126 if (kexec_image->preserve_context)
127 save_processor_state();
128#endif
129
130 save_ftrace_enabled = __ftrace_enabled_save();
124 131
125 /* Interrupts aren't acceptable while we reboot */ 132 /* Interrupts aren't acceptable while we reboot */
126 local_irq_disable(); 133 local_irq_disable();
@@ -178,6 +185,13 @@ void machine_kexec(struct kimage *image)
178 (unsigned long)page_list, 185 (unsigned long)page_list,
179 image->start, cpu_has_pae, 186 image->start, cpu_has_pae,
180 image->preserve_context); 187 image->preserve_context);
188
189#ifdef CONFIG_KEXEC_JUMP
190 if (kexec_image->preserve_context)
191 restore_processor_state();
192#endif
193
194 __ftrace_enabled_restore(save_ftrace_enabled);
181} 195}
182 196
183void arch_crash_save_vmcoreinfo(void) 197void arch_crash_save_vmcoreinfo(void)
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 17c80fdc453b..9fc6f7cbd8a8 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1469,7 +1469,6 @@ int kernel_kexec(void)
1469 error = device_power_down(PMSG_FREEZE); 1469 error = device_power_down(PMSG_FREEZE);
1470 if (error) 1470 if (error)
1471 goto Enable_irqs; 1471 goto Enable_irqs;
1472 save_processor_state();
1473 } else 1472 } else
1474#endif 1473#endif
1475 { 1474 {
@@ -1482,7 +1481,6 @@ int kernel_kexec(void)
1482 1481
1483#ifdef CONFIG_KEXEC_JUMP 1482#ifdef CONFIG_KEXEC_JUMP
1484 if (kexec_image->preserve_context) { 1483 if (kexec_image->preserve_context) {
1485 restore_processor_state();
1486 device_power_up(PMSG_RESTORE); 1484 device_power_up(PMSG_RESTORE);
1487 Enable_irqs: 1485 Enable_irqs:
1488 local_irq_enable(); 1486 local_irq_enable();