[RFC] [patch 2/2] Refuse kprobe insertion on __init section code

[Srinivasa Ds <srinivasa@in.ibm.com>]

This patch makes use of persistent_kernel_text_address() to avoid
probing __init functions.

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>




---
 kernel/kprobes.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Index: linux-2.6.24-rc5-mm1/kernel/kprobes.c
===================================================================
--- linux-2.6.24-rc5-mm1.orig/kernel/kprobes.c
+++ linux-2.6.24-rc5-mm1/kernel/kprobes.c
@@ -520,7 +520,7 @@ static int __kprobes __register_kprobe(s
 		return -EINVAL;
 	p->addr = (kprobe_opcode_t *)(((char *)p->addr)+ p->offset);
 
-	if (!kernel_text_address((unsigned long) p->addr) ||
+	if (!persistent_kernel_text_address((unsigned long) p->addr) ||
 	    in_kprobes_functions((unsigned long) p->addr))
 		return -EINVAL;
 
@@ -662,7 +662,7 @@ int __kprobes register_jprobe(struct jpr
 {
 	unsigned long addr = arch_deref_entry_point(jp->entry);
 
-	if (!kernel_text_address(addr))
+	if (!persistent_kernel_text_address(addr))
 		return -EINVAL;
 
 	/* Todo: Verify probepoint is a function entry point */
--
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