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btrfs: Refactor transaction handling in received subvolume ioctl

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If btrfs_transaction_commit fails it will proceed to call
cleanup_transaction, which in turn already does btrfs_abort_transaction.
So let's remove the unnecessary code duplication. Also let's be explicit
about handling failure of btrfs_uuid_tree_add by calling
btrfs_end_transaction.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2017-09-28 11:45:26 +03:00 committed by David Sterba
parent 9417ebc8a6
commit efd38150af
1 changed files with 1 additions and 5 deletions
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6
fs/btrfs/ioctl.c
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@ -5152,15 +5152,11 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
root->root_key.objectid);
if (ret < 0 && ret != -EEXIST) {
btrfs_abort_transaction(trans, ret);
btrfs_end_transaction(trans);
goto out;
}
}
ret = btrfs_commit_transaction(trans);
if (ret < 0) {
btrfs_abort_transaction(trans, ret);
goto out;
}
out:
up_write(&fs_info->subvol_sem);
mnt_drop_write_file(file);