[PATCH] ifdef ->quota_read, ->quota_write

All suppliers of ->quota_read, ->quota_write (I've found ext2, ext3, UFS,
reiserfs) already have them properly ifdeffed.  All callers of
->quota_read, ->quota_write are under CONFIG_QUOTA umbrella, so...

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8f74dfb..4caec6c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1143,9 +1143,10 @@
 
 	int (*show_options)(struct seq_file *, struct vfsmount *);
 	int (*show_stats)(struct seq_file *, struct vfsmount *);
-
+#ifdef CONFIG_QUOTA
 	ssize_t (*quota_read)(struct super_block *, int, char *, size_t, loff_t);
 	ssize_t (*quota_write)(struct super_block *, int, const char *, size_t, loff_t);
+#endif
 };
 
 /* Inode state bits.  Protected by inode_lock. */