nfsd41: introduce nfs4_client cl_sessions list

[safe/jmp/linux-2.6] / include / linux / module.h

diff --git a/include/linux/module.h b/include/linux/module.h
index eddf27d..145a755 100644 (file)
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -29,7 +29,7 @@
 #define MODULE_SYMBOL_PREFIX ""
 #endif
 
-#define MODULE_NAME_LEN (64 - sizeof(unsigned long))
+#define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN
 
 struct kernel_symbol
 {
@@ -60,6 +60,7 @@ struct module_kobject
        struct kobject kobj;
        struct module *mod;
        struct kobject *drivers_dir;
+       struct module_param_attrs *mp;
 };
 
 /* These are either module local, or the kernel's dummy ones. */
@@ -218,11 +219,6 @@ void *__symbol_get_gpl(const char *symbol);
 
 #endif
 
-struct module_ref
-{
-       local_t count;
-} ____cacheline_aligned;
-
 enum module_state
 {
        MODULE_STATE_LIVE,
@@ -242,7 +238,6 @@ struct module
 
        /* Sysfs stuff. */
        struct module_kobject mkobj;
-       struct module_param_attrs *param_attrs;
        struct module_attribute *modinfo_attrs;
        const char *version;
        const char *srcversion;
@@ -294,9 +289,6 @@ struct module
        /* The size of the executable code in each section.  */
        unsigned int init_text_size, core_text_size;
 
-       /* The handle returned from unwind_add_table. */
-       void *unwind_info;
-
        /* Arch-specific module values */
        struct mod_arch_specific arch;
 
@@ -347,8 +339,11 @@ struct module
        /* Destruction function. */
        void (*exit)(void);
 
-       /* Reference counts */
-       struct module_ref ref[NR_CPUS];
+#ifdef CONFIG_SMP
+       char *refptr;
+#else
+       local_t ref;
+#endif
 #endif
 };
 #ifndef MODULE_ARCH_INIT
@@ -368,6 +363,18 @@ struct module *module_text_address(unsigned long addr);
 struct module *__module_text_address(unsigned long addr);
 int is_module_address(unsigned long addr);
 
+static inline int within_module_core(unsigned long addr, struct module *mod)
+{
+       return (unsigned long)mod->module_core <= addr &&
+              addr < (unsigned long)mod->module_core + mod->core_size;
+}
+
+static inline int within_module_init(unsigned long addr, struct module *mod)
+{
+       return (unsigned long)mod->module_init <= addr &&
+              addr < (unsigned long)mod->module_init + mod->init_size;
+}
+
 /* Returns 0 and fills in value, defined and namebuf, or -ERANGE if
    symnum out of range. */
 int module_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
@@ -386,13 +393,21 @@ void __symbol_put(const char *symbol);
 #define symbol_put(x) __symbol_put(MODULE_SYMBOL_PREFIX #x)
 void symbol_put_addr(void *addr);
 
+static inline local_t *__module_ref_addr(struct module *mod, int cpu)
+{
+#ifdef CONFIG_SMP
+       return (local_t *) (mod->refptr + per_cpu_offset(cpu));
+#else
+       return &mod->ref;
+#endif
+}
+
 /* Sometimes we know we already have a refcount, and it's easier not
    to handle the error case (which only happens with rmmod --wait). */
 static inline void __module_get(struct module *module)
 {
        if (module) {
-               BUG_ON(module_refcount(module) == 0);
-               local_inc(&module->ref[get_cpu()].count);
+               local_inc(__module_ref_addr(module, get_cpu()));
                put_cpu();
        }
 }
@@ -404,7 +419,7 @@ static inline int try_module_get(struct module *module)
        if (module) {
                unsigned int cpu = get_cpu();
                if (likely(module_is_live(module)))
-                       local_inc(&module->ref[cpu].count);
+                       local_inc(__module_ref_addr(module, cpu));
                else
                        ret = 0;
                put_cpu();