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-rw-r--r--arch/x86/kernel/kprobes_32.c7
-rw-r--r--arch/x86/kernel/kprobes_64.c7
-rw-r--r--arch/x86/kernel/process_64.c2
3 files changed, 15 insertions, 1 deletions
diff --git a/arch/x86/kernel/kprobes_32.c b/arch/x86/kernel/kprobes_32.c
index 06b86e5617f6..90f778c04b3f 100644
--- a/arch/x86/kernel/kprobes_32.c
+++ b/arch/x86/kernel/kprobes_32.c
@@ -41,6 +41,13 @@ void jprobe_return_end(void);
41DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; 41DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
42DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); 42DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
43 43
44struct kretprobe_blackpoint kretprobe_blacklist[] = {
45 {"__switch_to", }, /* This function switches only current task, but
46 doesn't switch kernel stack.*/
47 {NULL, NULL} /* Terminator */
48};
49const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
50
44/* insert a jmp code */ 51/* insert a jmp code */
45static __always_inline void set_jmp_op(void *from, void *to) 52static __always_inline void set_jmp_op(void *from, void *to)
46{ 53{
diff --git a/arch/x86/kernel/kprobes_64.c b/arch/x86/kernel/kprobes_64.c
index 7c16506d681f..681b801c5e26 100644
--- a/arch/x86/kernel/kprobes_64.c
+++ b/arch/x86/kernel/kprobes_64.c
@@ -48,6 +48,13 @@ static void __kprobes arch_copy_kprobe(struct kprobe *p);
48DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL; 48DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
49DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); 49DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
50 50
51struct kretprobe_blackpoint kretprobe_blacklist[] = {
52 {"__switch_to", }, /* This function switches only current task, but
53 doesn't switch kernel stack.*/
54 {NULL, NULL} /* Terminator */
55};
56const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
57
51/* 58/*
52 * returns non-zero if opcode modifies the interrupt flag. 59 * returns non-zero if opcode modifies the interrupt flag.
53 */ 60 */
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 7352d4b377e6..6309b275cb9c 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -581,7 +581,7 @@ static inline void __switch_to_xtra(struct task_struct *prev_p,
581 * 581 *
582 * Kprobes not supported here. Set the probe on schedule instead. 582 * Kprobes not supported here. Set the probe on schedule instead.
583 */ 583 */
584__kprobes struct task_struct * 584struct task_struct *
585__switch_to(struct task_struct *prev_p, struct task_struct *next_p) 585__switch_to(struct task_struct *prev_p, struct task_struct *next_p)
586{ 586{
587 struct thread_struct *prev = &prev_p->thread, 587 struct thread_struct *prev = &prev_p->thread,