bitmap, irq: add smp_affinity_list interface to /proc/irq

[linux-2.6.git] / kernel / extable.c

diff --git a/kernel/extable.c b/kernel/extable.c
index b54a6017b6b57bd77919fedd865b6bba24fcac8e..5339705b82410515dcadce220ef997930dd3247c 100644 (file)
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -52,6 +52,14 @@ 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;
+}
+
 int core_kernel_text(unsigned long addr)
 {
        if (addr >= (unsigned long)_stext &&
@@ -59,8 +67,25 @@ 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;
+}
+
+/**
+ * core_kernel_data - tell if addr points to kernel data
+ * @addr: address to test
+ *
+ * Returns true if @addr passed in is from the core kernel data
+ * section.
+ *
+ * Note: On some archs it may return true for core RODATA, and false
+ *  for others. But will always be true for core RW data.
+ */
+int core_kernel_data(unsigned long addr)
+{
+       if (addr >= (unsigned long)_sdata &&
+           addr < (unsigned long)_edata)
                return 1;
        return 0;
 }
@@ -69,14 +94,26 @@ int __kernel_text_address(unsigned long addr)
 {
        if (core_kernel_text(addr))
                return 1;
-       return __module_text_address(addr) != NULL;
+       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)
 {
        if (core_kernel_text(addr))
                return 1;
-       return module_text_address(addr) != NULL;
+       return is_module_text_address(addr);
 }
 
 /*
@@ -92,5 +129,5 @@ int func_ptr_is_kernel_text(void *ptr)
        addr = (unsigned long) dereference_function_descriptor(ptr);
        if (core_kernel_text(addr))
                return 1;
-       return module_text_address(addr) != NULL;
+       return is_module_text_address(addr);
 }