readahead: remove the old algorithm

Remove the old readahead algorithm.

Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
Cc: Steven Pratt <slpratt@austin.ibm.com>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 7 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 619c0e80cf0c..3d0d7d285237 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1144,13 +1144,6 @@ unsigned long page_cache_readahead_ondemand(struct address_space *mapping,
                           struct page *page,
                           pgoff_t offset,
                           unsigned long size);
-unsigned long page_cache_readahead(struct address_space *mapping,
-                          struct file_ra_state *ra,
-                          struct file *filp,
-                          pgoff_t offset,
-                          unsigned long size);
-void handle_ra_miss(struct address_space *mapping, 
-                    struct file_ra_state *ra, pgoff_t offset);
 unsigned long max_sane_readahead(unsigned long nr);
 
 /* Do stack extension */