AcoSail/kernel_optimize_test
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Btrfs: Remove the invalid shrink size check up from btrfs_shrink_dev()

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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 <jeff.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
jeff.liu 2012-10-27 12:06:39 +00:00 committed by Josef Bacik
parent 9afab8820b
commit 0253f40ef9
2 changed files with 1 additions and 4 deletions
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2
fs/btrfs/ioctl.c
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@ -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);

3
fs/btrfs/volumes.c
View File

@ -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;