GFS2: Remove unused argument from gfs2_internal_read

gfs2_internal_read accepts an unused ra_state argument, left over from
when we did readahead on the rindex. Since there are currently no plans
to add back this readahead, this patch removes the ra_state parameter
and updates the functions which call gfs2_internal_read accordingly.

Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index a627b3e..695bbe1 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -517,15 +517,14 @@
 /**
  * gfs2_internal_read - read an internal file
  * @ip: The gfs2 inode
- * @ra_state: The readahead state (or NULL for no readahead)
  * @buf: The buffer to fill
  * @pos: The file position
  * @size: The amount to read
  *
  */
 
-int gfs2_internal_read(struct gfs2_inode *ip, struct file_ra_state *ra_state,
-                       char *buf, loff_t *pos, unsigned size)
+int gfs2_internal_read(struct gfs2_inode *ip, char *buf, loff_t *pos,
+                       unsigned size)
 {
 	struct address_space *mapping = ip->i_inode.i_mapping;
 	unsigned long index = *pos / PAGE_CACHE_SIZE;