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-rw-r--r--arch/x86/kernel/ftrace.c17
-rw-r--r--kernel/profile.c3
2 files changed, 12 insertions, 8 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 1b43086b097a..231bdd3c5b1c 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -488,20 +488,21 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
488 * ignore such a protection. 488 * ignore such a protection.
489 */ 489 */
490 asm volatile( 490 asm volatile(
491 "1: " _ASM_MOV " (%[parent_old]), %[old]\n" 491 "1: " _ASM_MOV " (%[parent]), %[old]\n"
492 "2: " _ASM_MOV " %[return_hooker], (%[parent_replaced])\n" 492 "2: " _ASM_MOV " %[return_hooker], (%[parent])\n"
493 " movl $0, %[faulted]\n" 493 " movl $0, %[faulted]\n"
494 "3:\n"
494 495
495 ".section .fixup, \"ax\"\n" 496 ".section .fixup, \"ax\"\n"
496 "3: movl $1, %[faulted]\n" 497 "4: movl $1, %[faulted]\n"
498 " jmp 3b\n"
497 ".previous\n" 499 ".previous\n"
498 500
499 _ASM_EXTABLE(1b, 3b) 501 _ASM_EXTABLE(1b, 4b)
500 _ASM_EXTABLE(2b, 3b) 502 _ASM_EXTABLE(2b, 4b)
501 503
502 : [parent_replaced] "=r" (parent), [old] "=r" (old), 504 : [old] "=r" (old), [faulted] "=r" (faulted)
503 [faulted] "=r" (faulted) 505 : [parent] "r" (parent), [return_hooker] "r" (return_hooker)
504 : [parent_old] "0" (parent), [return_hooker] "r" (return_hooker)
505 : "memory" 506 : "memory"
506 ); 507 );
507 508
diff --git a/kernel/profile.c b/kernel/profile.c
index 784933acf5b8..7724e0409bae 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -114,12 +114,15 @@ int __ref profile_init(void)
114 if (!slab_is_available()) { 114 if (!slab_is_available()) {
115 prof_buffer = alloc_bootmem(buffer_bytes); 115 prof_buffer = alloc_bootmem(buffer_bytes);
116 alloc_bootmem_cpumask_var(&prof_cpu_mask); 116 alloc_bootmem_cpumask_var(&prof_cpu_mask);
117 cpumask_copy(prof_cpu_mask, cpu_possible_mask);
117 return 0; 118 return 0;
118 } 119 }
119 120
120 if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL)) 121 if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL))
121 return -ENOMEM; 122 return -ENOMEM;
122 123
124 cpumask_copy(prof_cpu_mask, cpu_possible_mask);
125
123 prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL); 126 prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL);
124 if (prof_buffer) 127 if (prof_buffer)
125 return 0; 128 return 0;