From aa0f5930445e1a19dc3c8364176a5321cb369440 Mon Sep 17 00:00:00 2001
From: "jeff.liu" <jeff.liu@oracle.com>
Date: Sat, 27 Oct 2012 12:06:39 +0000
Subject: [PATCH] --- yaml --- r: 346654 b: refs/heads/master c:
 0253f40ef9a709a1af39ce38b1d998af090f8127 h: refs/heads/master v: v3

---
 [refs]                   | 2 +-
 trunk/fs/btrfs/ioctl.c   | 2 +-
 trunk/fs/btrfs/volumes.c | 3 ---
 3 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/[refs] b/[refs]
index 82159f0fa27b..a609fe69c819 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9afab8820bb8b55af669b199597d6716e04d1ba8
+refs/heads/master: 0253f40ef9a709a1af39ce38b1d998af090f8127
diff --git a/trunk/fs/btrfs/ioctl.c b/trunk/fs/btrfs/ioctl.c
index 8fcf9a59c28d..14c0d2e0790c 100644
--- a/trunk/fs/btrfs/ioctl.c
+++ b/trunk/fs/btrfs/ioctl.c
@@ -1409,7 +1409,7 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root *root,
 		btrfs_commit_transaction(trans, root);
 	} else if (new_size < old_size) {
 		ret = btrfs_shrink_device(device, new_size);
-	}
+	} /* equal, nothing need to do */
 
 out_free:
 	kfree(vol_args);
diff --git a/trunk/fs/btrfs/volumes.c b/trunk/fs/btrfs/volumes.c
index eaaf0bf52791..32a88428f6da 100644
--- a/trunk/fs/btrfs/volumes.c
+++ b/trunk/fs/btrfs/volumes.c
@@ -3059,9 +3059,6 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size)
 	u64 old_size = device->total_bytes;
 	u64 diff = device->total_bytes - new_size;
 
-	if (new_size >= device->total_bytes)
-		return -EINVAL;
-
 	path = btrfs_alloc_path();
 	if (!path)
 		return -ENOMEM;