From: Ram Pai <linuxram@us.ibm.com>


I have attached a incremental patch. This patch is generated w.r.t to
your attached readahead.c 

Tested it and verified that it has no side effects.

Thanks Suparna for the nice suggestion.



 25-akpm/mm/readahead.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff -puN mm/readahead.c~readahead-simplification mm/readahead.c
--- 25/mm/readahead.c~readahead-simplification	Thu Oct 30 12:32:58 2003
+++ 25-akpm/mm/readahead.c	Thu Oct 30 12:32:58 2003
@@ -454,11 +454,10 @@ do_io:
 			  * in the next current window, read in
 			  * an extra page.
 			  */
-			ra->size = preoffset - ra->start + 2;
-		} else {
-			ra->size = ra->next_size;
+			ra->next_size = preoffset - ra->start + 2;
 		}
 		ra->start = offset;
+		ra->size = ra->next_size;
 		ra->ahead_start = 0;		/* Invalidate these */
 		ra->ahead_size = 0;
 		actual = do_page_cache_readahead(mapping, filp, offset,

_