From 64134db5640794563e2dc5758b1df3177e02a1f9 Mon Sep 17 00:00:00 2001
From: Wang Sheng-Hui <shhuiw@gmail.com>
Date: Fri, 6 Apr 2012 14:35:31 +0800
Subject: [PATCH] --- yaml --- r: 309871 b: refs/heads/master c:
 39bab87ba6f4d8cce2b70c19e60233ad8030d7b4 h: refs/heads/master i:   309869:
 33c585edcddac736fc7a4942259ee143430b4f63   309867:
 0593bff4355550df36cb99c7fb6eef0a44ce0021   309863:
 f5b9ee58c7cb28a59a2d9f0b6e2ac6d1b9f450b0   309855:
 6ed3b05cec6be520faa0a6e58a1c44c8bbe7825a v: v3

---
 [refs]                     | 2 +-
 trunk/fs/btrfs/extent_io.c | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 857b9bc47e1e..29023045d938 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1b303fc0545b4bfbb2b8a69eec89e6f077f69b56
+refs/heads/master: 39bab87ba6f4d8cce2b70c19e60233ad8030d7b4
diff --git a/trunk/fs/btrfs/extent_io.c b/trunk/fs/btrfs/extent_io.c
index aeb98ceda51c..455daec2b6ce 100644
--- a/trunk/fs/btrfs/extent_io.c
+++ b/trunk/fs/btrfs/extent_io.c
@@ -3981,11 +3981,13 @@ static void btrfs_release_extent_buffer_page(struct extent_buffer *eb,
 						unsigned long start_idx)
 {
 	unsigned long index;
+	unsigned long num_pages;
 	struct page *page;
 
 	BUG_ON(extent_buffer_under_io(eb));
 
-	index = num_extent_pages(eb->start, eb->len);
+	num_pages = num_extent_pages(eb->start, eb->len);
+	index = start_idx + num_pages;
 	if (start_idx >= index)
 		return;