From: jeff.liu Date: Sat, 27 Oct 2012 12:06:39 +0000 (+0000) Subject: Btrfs: Remove the invalid shrink size check up from btrfs_shrink_dev() X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0253f40ef9a709a1af39ce38b1d998af090f8127;p=openwrt%2Fstaging%2Fblogic.git Btrfs: Remove the invalid shrink size check up from btrfs_shrink_dev() Remove an invalid size check up from btrfs_shrink_dev(). The new size should not larger than the device->total_bytes as it was already verified before coming to here(i.e. new_size < old_size). Remove invalid check up for btrfs_shrink_dev(). Signed-off-by: Jie Liu Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 8fcf9a59c28d..14c0d2e0790c 100644 --- a/fs/btrfs/ioctl.c +++ b/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/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index eaaf0bf52791..32a88428f6da 100644 --- a/fs/btrfs/volumes.c +++ b/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;