x86: fix up a few misc stack pointer vs thread_info confusions

[cascardo/linux.git] / arch / x86 / include / asm / kprobes.h

diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 4421b5d..d1d1e50 100644 (file)
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -38,12 +38,11 @@ typedef u8 kprobe_opcode_t;
 #define RELATIVECALL_OPCODE 0xe8
 #define RELATIVE_ADDR_SIZE 4
 #define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR)                                          \
-       (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
-                             THREAD_SIZE - (unsigned long)(ADDR)))    \
-        ? (MAX_STACK_SIZE)                                            \
-        : (((unsigned long)current_thread_info()) +                   \
-           THREAD_SIZE - (unsigned long)(ADDR)))
+#define CUR_STACK_SIZE(ADDR) \
+       (current_top_of_stack() - (unsigned long)(ADDR))
+#define MIN_STACK_SIZE(ADDR)                           \
+       (MAX_STACK_SIZE < CUR_STACK_SIZE(ADDR) ?        \
+        MAX_STACK_SIZE : CUR_STACK_SIZE(ADDR))
 
 #define flush_insn_slot(p)     do { } while (0)