Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-module-and-param

[net-next-2.6.git] / kernel / extable.c

diff --git a/kernel/extable.c b/kernel/extable.c
index 384f0da8a03e9997a6d06ffa624cfbdad7a9063f..81e99d1f0d5be93476ff27761d0a44232463dc9f 100644 (file)
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -41,6 +41,14 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
        return e;
 }
 
+static inline int init_kernel_text(unsigned long addr)
+{
+       if (addr >= (unsigned long)_sinittext &&
+           addr <= (unsigned long)_einittext)
+               return 1;
+       return 0;
+}
+
 __notrace_funcgraph int core_kernel_text(unsigned long addr)
 {
        if (addr >= (unsigned long)_stext &&
@@ -48,8 +56,7 @@ __notrace_funcgraph int core_kernel_text(unsigned long addr)
                return 1;
 
        if (system_state == SYSTEM_BOOTING &&
-           addr >= (unsigned long)_sinittext &&
-           addr <= (unsigned long)_einittext)
+           init_kernel_text(addr))
                return 1;
        return 0;
 }
@@ -58,7 +65,19 @@ __notrace_funcgraph int __kernel_text_address(unsigned long addr)
 {
        if (core_kernel_text(addr))
                return 1;
-       return is_module_text_address(addr);
+       if (is_module_text_address(addr))
+               return 1;
+       /*
+        * There might be init symbols in saved stacktraces.
+        * Give those symbols a chance to be printed in
+        * backtraces (such as lockdep traces).
+        *
+        * Since we are after the module-symbols check, there's
+        * no danger of address overlap:
+        */
+       if (init_kernel_text(addr))
+               return 1;
+       return 0;
 }
 
 int kernel_text_address(unsigned long addr)