From 2bd4fcb0ec72221625294ea92f8ecdb9ba77a2e0 Mon Sep 17 00:00:00 2001
From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Mon, 4 Mar 2013 00:41:05 -0500
Subject: [PATCH] --- yaml --- r: 361583 b: refs/heads/master c:
 ff95ec22cd7faa0d8b58dcc4207f21502df7b00b h: refs/heads/master i:   361581:
 aeb45b1e878ad243e09fa77ebcb99e1c4b0f4983   361579:
 c9169ba93ec5376b6a565807dee6a1dbaa326c04   361575:
 3d49f2d74278325ec23881981fa8f011850d0a5a   361567:
 d309508331f5fc824eaff2bb176615b164b786e8 v: v3

---
 [refs]                  |  2 +-
 trunk/fs/ext4/extents.c | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/[refs] b/[refs]
index 983f9e6ea8de..973db98973a9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ec22ba8edb507395c95fbc617eea26a6b2d98797
+refs/heads/master: ff95ec22cd7faa0d8b58dcc4207f21502df7b00b
diff --git a/trunk/fs/ext4/extents.c b/trunk/fs/ext4/extents.c
index 60818ed1f6a9..265cb0e50c51 100644
--- a/trunk/fs/ext4/extents.c
+++ b/trunk/fs/ext4/extents.c
@@ -3387,8 +3387,19 @@ static int ext4_convert_unwritten_extents_endio(handle_t *handle,
 		"block %llu, max_blocks %u\n", inode->i_ino,
 		  (unsigned long long)ee_block, ee_len);
 
-	/* If extent is larger than requested then split is required */
+	/* If extent is larger than requested it is a clear sign that we still
+	 * have some extent state machine issues left. So extent_split is still
+	 * required.
+	 * TODO: Once all related issues will be fixed this situation should be
+	 * illegal.
+	 */
 	if (ee_block != map->m_lblk || ee_len > map->m_len) {
+#ifdef EXT4_DEBUG
+		ext4_warning("Inode (%ld) finished: extent logical block %llu,"
+			     " len %u; IO logical block %llu, len %u\n",
+			     inode->i_ino, (unsigned long long)ee_block, ee_len,
+			     (unsigned long long)map->m_lblk, map->m_len);
+#endif
 		err = ext4_split_unwritten_extents(handle, inode, map, path,
 						   EXT4_GET_BLOCKS_CONVERT);
 		if (err < 0)