proc: move /proc/vmcore creation to fs/proc/vmcore.c

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index cd9ca67..03ec595 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -32,7 +32,7 @@
 /* Total size of vmcore file. */
 static u64 vmcore_size;
 
-struct proc_dir_entry *proc_vmcore = NULL;
+static struct proc_dir_entry *proc_vmcore = NULL;
 
 /* Reads a page from the oldmem device from given offset. */
 static ssize_t read_from_oldmem(char *buf, size_t count,
@@ -162,7 +162,7 @@
 	return acc;
 }
 
-const struct file_operations proc_vmcore_operations = {
+static const struct file_operations proc_vmcore_operations = {
 	.read		= read_vmcore,
 };
 
@@ -652,7 +652,7 @@
 		return rc;
 	}
 
-	/* Initialize /proc/vmcore size if proc is already up. */
+	proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
 	if (proc_vmcore)
 		proc_vmcore->size = vmcore_size;
 	return 0;