From c64553fbb767c37902af1dfa327291ed3f4f9acf Mon Sep 17 00:00:00 2001
From: Kazuya Mio <k-mio@sx.jp.nec.com>
Date: Tue, 24 Nov 2009 10:28:48 -0500
Subject: [PATCH] --- yaml --- r: 174390 b: refs/heads/master c:
 446aaa6e7e993b38a6f21c6acfa68f3f1af3dbe3 h: refs/heads/master v: v3

---
 [refs]                      |  2 +-
 trunk/fs/ext4/ioctl.c       |  1 +
 trunk/fs/ext4/move_extent.c | 14 +++-----------
 3 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/[refs] b/[refs]
index f8b62f8a17ef..ec97bdd26c96 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 94d7c16cbbbd0e03841fcf272bcaf0620ad39618
+refs/heads/master: 446aaa6e7e993b38a6f21c6acfa68f3f1af3dbe3
diff --git a/trunk/fs/ext4/ioctl.c b/trunk/fs/ext4/ioctl.c
index c1cdf613e725..31e5ee0c858f 100644
--- a/trunk/fs/ext4/ioctl.c
+++ b/trunk/fs/ext4/ioctl.c
@@ -239,6 +239,7 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			}
 		}
 
+		me.moved_len = 0;
 		err = ext4_move_extents(filp, donor_filp, me.orig_start,
 					me.donor_start, me.len, &me.moved_len);
 		fput(donor_filp);
diff --git a/trunk/fs/ext4/move_extent.c b/trunk/fs/ext4/move_extent.c
index 3478889e00b3..445ecd7616a6 100644
--- a/trunk/fs/ext4/move_extent.c
+++ b/trunk/fs/ext4/move_extent.c
@@ -947,7 +947,6 @@ move_extent_per_page(struct file *o_filp, struct inode *donor_inode,
  * @orig_start:		logical start offset in block for orig
  * @donor_start:	logical start offset in block for donor
  * @len:		the number of blocks to be moved
- * @moved_len:		moved block length
  *
  * Check the arguments of ext4_move_extents() whether the files can be
  * exchanged with each other.
@@ -955,8 +954,8 @@ move_extent_per_page(struct file *o_filp, struct inode *donor_inode,
  */
 static int
 mext_check_arguments(struct inode *orig_inode,
-			  struct inode *donor_inode, __u64 orig_start,
-			  __u64 donor_start, __u64 *len, __u64 moved_len)
+		     struct inode *donor_inode, __u64 orig_start,
+		     __u64 donor_start, __u64 *len)
 {
 	ext4_lblk_t orig_blocks, donor_blocks;
 	unsigned int blkbits = orig_inode->i_blkbits;
@@ -1010,13 +1009,6 @@ mext_check_arguments(struct inode *orig_inode,
 		return -EINVAL;
 	}
 
-	if (moved_len) {
-		ext4_debug("ext4 move extent: moved_len should be 0 "
-			"[ino:orig %lu, donor %lu]\n", orig_inode->i_ino,
-			donor_inode->i_ino);
-		return -EINVAL;
-	}
-
 	if ((orig_start > EXT_MAX_BLOCK) ||
 	    (donor_start > EXT_MAX_BLOCK) ||
 	    (*len > EXT_MAX_BLOCK) ||
@@ -1226,7 +1218,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp,
 	double_down_write_data_sem(orig_inode, donor_inode);
 	/* Check the filesystem environment whether move_extent can be done */
 	ret1 = mext_check_arguments(orig_inode, donor_inode, orig_start,
-					donor_start, &len, *moved_len);
+				    donor_start, &len);
 	if (ret1)
 		goto out;