make fs/{namespace,super}.c forget about acct.h

These externs belong in fs/internal.h.  Rename (they are not acct-specific
anymore) and move them over there.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/fs_pin.c

 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/fs_pin.h>
+#include "internal.h"
 #include "mount.h"
 
 static void pin_free_rcu(struct rcu_head *head)
@@ -32,13 +33,13 @@ void pin_insert(struct fs_pin *pin, struct vfsmount *m)
 	spin_unlock(&pin_lock);
 }
 
-void acct_auto_close_mnt(struct hlist_head *list)
+void mnt_pin_kill(struct mount *m)
 {
 	while (1) {
 		struct hlist_node *p;
 		struct fs_pin *pin;
 		rcu_read_lock();
-		p = ACCESS_ONCE(list->first);
+		p = ACCESS_ONCE(m->mnt_pins.first);
 		if (!p) {
 			rcu_read_unlock();
 			break;
@@ -54,13 +55,13 @@ void acct_auto_close_mnt(struct hlist_head *list)
 	}
 }
 
-void acct_auto_close(struct hlist_head *list)
+void sb_pin_kill(struct super_block *sb)
 {
 	while (1) {
 		struct hlist_node *p;
 		struct fs_pin *pin;
 		rcu_read_lock();
-		p = ACCESS_ONCE(list->first);
+		p = ACCESS_ONCE(sb->s_pins.first);
 		if (!p) {
 			rcu_read_unlock();
 			break;

fs/internal.h

@@ -143,3 +143,9 @@ extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
  * pipe.c
  */
 extern const struct file_operations pipefifo_fops;
+
+/*
+ * fs_pin.c
+ */
+extern void sb_pin_kill(struct super_block *sb);
+extern void mnt_pin_kill(struct mount *m);

fs/namespace.c

@@ -16,7 +16,6 @@
 #include <linux/namei.h>
 #include <linux/security.h>
 #include <linux/idr.h>
-#include <linux/acct.h>		/* acct_auto_close_mnt */
 #include <linux/init.h>		/* init_rootfs */
 #include <linux/fs_struct.h>	/* get_fs_root et.al. */
 #include <linux/fsnotify.h>	/* fsnotify_vfsmount_delete */
@@ -956,7 +955,7 @@ static void mntput_no_expire(struct mount *mnt)
 		mnt->mnt_pinned = 0;
 		rcu_read_unlock();
 		unlock_mount_hash();
-		acct_auto_close_mnt(&mnt->mnt_pins);
+		mnt_pin_kill(mnt);
 		goto put_again;
 	}
 	if (unlikely(mnt->mnt.mnt_flags & MNT_DOOMED)) {

fs/super.c

@@ -22,7 +22,6 @@
 
 #include <linux/export.h>
 #include <linux/slab.h>
-#include <linux/acct.h>
 #include <linux/blkdev.h>
 #include <linux/mount.h>
 #include <linux/security.h>
@@ -707,7 +706,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 	if (remount_ro) {
 		if (sb->s_pins.first) {
 			up_write(&sb->s_umount);
-			acct_auto_close(&sb->s_pins);
+			sb_pin_kill(sb);
 			down_write(&sb->s_umount);
 			if (!sb->s_root)
 				return 0;

include/linux/acct.h

@@ -32,8 +32,6 @@ extern void acct_exit_ns(struct pid_namespace *);
 #define acct_process()		do { } while (0)
 #define acct_exit_ns(ns)	do { } while (0)
 #endif
-extern void acct_auto_close(struct hlist_head *);
-extern void acct_auto_close_mnt(struct hlist_head *);
 
 /*
  * ACCT_VERSION numbers as yet defined: