1 files changed, 12 insertions, 19 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 36b7abefacbe..18cfbf76ec5b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1038,6 +1038,12 @@ struct super_block {
          * in /proc/mounts will be "type.subtype"
          */
         char *s_subtype;
+
+        /*
+         * Saved mount options for lazy filesystems using
+         * generic_show_options()
+         */
+        char *s_options;
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
@@ -1618,7 +1624,6 @@ extern int register_chrdev(unsigned int, const char *,
                            const struct file_operations *);
 extern void unregister_chrdev(unsigned int, const char *);
 extern void unregister_chrdev_region(dev_t, unsigned);
-extern int chrdev_open(struct inode *, struct file *);
 extern void chrdev_show(struct seq_file *,off_t);
 
 /* fs/block_dev.c */
@@ -1807,9 +1812,6 @@ extern ssize_t generic_file_buffered_write(struct kiocb *, const struct iovec *,
                 unsigned long, loff_t, loff_t *, size_t, ssize_t);
 extern ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos);
 extern ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos);
-extern void do_generic_mapping_read(struct address_space *mapping,
-                                    struct file_ra_state *, struct file *,
-                                    loff_t *, read_descriptor_t *, read_actor_t);
 extern int generic_segment_checks(const struct iovec *iov,
                 unsigned long *nr_segs, size_t *count, int access_flags);
 
@@ -1847,18 +1849,6 @@ static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
 }
 #endif
 
-static inline void do_generic_file_read(struct file * filp, loff_t *ppos,
-                                        read_descriptor_t * desc,
-                                        read_actor_t actor)
-{
-        do_generic_mapping_read(filp->f_mapping,
-                                &filp->f_ra,
-                                filp,
-                                ppos,
-                                desc,
-                                actor);
-}
-
 #ifdef CONFIG_BLOCK
 ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
         struct block_device *bdev, const struct iovec *iov, loff_t offset,
@@ -1985,6 +1975,9 @@ extern int __must_check inode_setattr(struct inode *, struct iattr *);
 
 extern void file_update_time(struct file *file);
 
+extern int generic_show_options(struct seq_file *m, struct vfsmount *mnt);
+extern void save_mount_options(struct super_block *sb, char *options);
+
 static inline ino_t parent_ino(struct dentry *dentry)
 {
         ino_t res;
@@ -2056,7 +2049,7 @@ static int __fops ## _open(struct inode *inode, struct file *file)	\
 static struct file_operations __fops = {                                \
         .owner   = THIS_MODULE,                                         \
         .open    = __fops ## _open,                                     \
-        .release = simple_attr_close,                                   \
+        .release = simple_attr_release,                                 \
         .read    = simple_attr_read,                                    \
         .write   = simple_attr_write,                                   \
 };
@@ -2068,9 +2061,9 @@ __simple_attr_check_format(const char *fmt, ...)
 }
 
 int simple_attr_open(struct inode *inode, struct file *file,
-                     u64 (*get)(void *), void (*set)(void *, u64),
+                     int (*get)(void *, u64 *), int (*set)(void *, u64),
                      const char *fmt);
-int simple_attr_close(struct inode *inode, struct file *file);
+int simple_attr_release(struct inode *inode, struct file *file);
 ssize_t simple_attr_read(struct file *file, char __user *buf,
                          size_t len, loff_t *ppos);
 ssize_t simple_attr_write(struct file *file, const char __user *buf,