From ece7d20e8be6730fbb29f4550de6b19b1a3a9387 Mon Sep 17 00:00:00 2001
From: Mike Fleetwood <mike.fleetwood@googlemail.com>
Date: Fri, 18 Nov 2011 18:55:01 +0000
Subject: [PATCH] Btrfs: Don't error on resizing FS to same size
It seems overly harsh to fail a resize of a btrfs file system to the
same size when a shrink or grow would succeed. User app GParted trips
over this error. Allow it by bypassing the shrink or grow operation.
Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
---
fs/btrfs/ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a90e749ed6d265..72d461656f6066 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1278,7 +1278,7 @@ static noinline int btrfs_ioctl_resize(struct btrfs_root *root,
}
ret = btrfs_grow_device(trans, device, new_size);
btrfs_commit_transaction(trans, root);
- } else {
+ } else if (new_size < old_size) {
ret = btrfs_shrink_device(device, new_size);
}
--
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