proc: move /proc/modules boilerplate to kernel/module.c

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>

1 files changed, 41 insertions, 18 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 0d8d21ee792c..6fded84d7029 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -20,11 +20,13 @@
 #include <linux/moduleloader.h>
 #include <linux/init.h>
 #include <linux/kallsyms.h>
+#include <linux/fs.h>
 #include <linux/sysfs.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/elf.h>
+#include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/syscalls.h>
 #include <linux/fcntl.h>
@@ -2599,23 +2601,6 @@ unsigned long module_kallsyms_lookup_name(const char *name)
 }
 #endif /* CONFIG_KALLSYMS */
 
-/* Called by the /proc file system to return a list of modules. */
-static void *m_start(struct seq_file *m, loff_t *pos)
-{
-        mutex_lock(&module_mutex);
-        return seq_list_start(&modules, *pos);
-}
-
-static void *m_next(struct seq_file *m, void *p, loff_t *pos)
-{
-        return seq_list_next(p, &modules, pos);
-}
-
-static void m_stop(struct seq_file *m, void *p)
-{
-        mutex_unlock(&module_mutex);
-}
-
 static char *module_flags(struct module *mod, char *buf)
 {
         int bx = 0;
@@ -2649,6 +2634,24 @@ static char *module_flags(struct module *mod, char *buf)
         return buf;
 }
 
+#ifdef CONFIG_PROC_FS
+/* Called by the /proc file system to return a list of modules. */
+static void *m_start(struct seq_file *m, loff_t *pos)
+{
+        mutex_lock(&module_mutex);
+        return seq_list_start(&modules, *pos);
+}
+
+static void *m_next(struct seq_file *m, void *p, loff_t *pos)
+{
+        return seq_list_next(p, &modules, pos);
+}
+
+static void m_stop(struct seq_file *m, void *p)
+{
+        mutex_unlock(&module_mutex);
+}
+
 static int m_show(struct seq_file *m, void *p)
 {
         struct module *mod = list_entry(p, struct module, list);
@@ -2679,13 +2682,33 @@ static int m_show(struct seq_file *m, void *p)
    Where refcount is a number or -, and deps is a comma-separated list
    of depends or -.
 */
-const struct seq_operations modules_op = {
+static const struct seq_operations modules_op = {
         .start  = m_start,
         .next   = m_next,
         .stop   = m_stop,
         .show   = m_show
 };
 
+static int modules_open(struct inode *inode, struct file *file)
+{
+        return seq_open(file, &modules_op);
+}
+
+static const struct file_operations proc_modules_operations = {
+        .open           = modules_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = seq_release,
+};
+
+static int __init proc_modules_init(void)
+{
+        proc_create("modules", 0, NULL, &proc_modules_operations);
+        return 0;
+}
+module_init(proc_modules_init);
+#endif
+
 /* Given an address, look for it in the module exception tables. */
 const struct exception_table_entry *search_module_extables(unsigned long addr)
 {