From 9068e76b085690f7a34655ea84d727c632d2f27a Mon Sep 17 00:00:00 2001
From: Wu Fengguang <fengguang.wu@intel.com>
Date: Tue, 16 Jun 2009 15:31:28 -0700
Subject: [PATCH] --- yaml --- r: 151509 b: refs/heads/master c:
 70ac23cfa31f68289d4b720c6162b3929ab4de36 h: refs/heads/master i:   151507:
 951bba1af942ea80bdec48f38d5ebfdb4b60a2a9 v: v3

---
 [refs]             | 2 +-
 trunk/mm/filemap.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index c451a80e18ad..46642bd0281b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ef00e08e26dd5d84271ef706262506b82195e752
+refs/heads/master: 70ac23cfa31f68289d4b720c6162b3929ab4de36
diff --git a/trunk/mm/filemap.c b/trunk/mm/filemap.c
index 827536485599..99977f0a94e4 100644
--- a/trunk/mm/filemap.c
+++ b/trunk/mm/filemap.c
@@ -1472,7 +1472,8 @@ static void do_sync_mmap_readahead(struct vm_area_struct *vma,
 	if (VM_RandomReadHint(vma))
 		return;
 
-	if (VM_SequentialReadHint(vma)) {
+	if (VM_SequentialReadHint(vma) ||
+			offset - 1 == (ra->prev_pos >> PAGE_CACHE_SHIFT)) {
 		page_cache_sync_readahead(mapping, ra, file, offset, 1);
 		return;
 	}