From a5197d47227719d13bec48ca7f8fb2b89ae56bf9 Mon Sep 17 00:00:00 2001
From: Liu Bo <liubo2009@cn.fujitsu.com>
Date: Thu, 14 Jun 2012 02:23:19 -0600
Subject: [PATCH] --- yaml --- r: 310837 b: refs/heads/master c:
 4e42ae1bdcda77fc958a17d7ff4ba5a9c9c207da h: refs/heads/master i:   310835:
 fdbe050fc4e2f043a386dd4dd7018aa54e3f9fa6 v: v3

---
 [refs]                 | 2 +-
 trunk/fs/btrfs/ioctl.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 2bcc3a685e04..57fe28e844c8 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bc1782374b128103ae9689e0753e0610f35b6bfd
+refs/heads/master: 4e42ae1bdcda77fc958a17d7ff4ba5a9c9c207da
diff --git a/trunk/fs/btrfs/ioctl.c b/trunk/fs/btrfs/ioctl.c
index a98f7d252829..58adbd0356d6 100644
--- a/trunk/fs/btrfs/ioctl.c
+++ b/trunk/fs/btrfs/ioctl.c
@@ -1306,6 +1306,13 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root *root,
 		ret = -EINVAL;
 		goto out_free;
 	}
+	if (device->fs_devices && device->fs_devices->seeding) {
+		printk(KERN_INFO "btrfs: resizer unable to apply on "
+		       "seeding device %llu\n", devid);
+		ret = -EINVAL;
+		goto out_free;
+	}
+
 	if (!strcmp(sizestr, "max"))
 		new_size = device->bdev->bd_inode->i_size;
 	else {