Re: [Qemu-devel] [PATCH v2 1/2] qcow2: Correct comment for realloc_refcount_block()

[Laszlo Ersek <lersek@redhat.com>]

On 03/17/14 23:04, Max Reitz wrote:
> Contrary to the comment describing this function's behavior, it does not
> return 0 on success, but rather the offset of the newly allocated
> cluster. This patch adjusts the comment accordingly to reflect the
> actual behavior.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  block/qcow2-refcount.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
> index 6151148..3f2ed08 100644
> --- a/block/qcow2-refcount.c
> +++ b/block/qcow2-refcount.c
> @@ -1383,7 +1383,7 @@ static int write_reftable_entry(BlockDriverState *bs, int rt_index)
>   * does _not_ decrement the reference count for the currently occupied cluster.
>   *
>   * This function prints an informative message to stderr on error (and returns
> - * -errno); on success, 0 is returned.
> + * -errno); on success, the offset of the newly allocated cluster is returned.
>   */
>  static int64_t realloc_refcount_block(BlockDriverState *bs, int reftable_index,
>                                        uint64_t offset)
> 

Reviewed-by: Laszlo Ersek <lersek@redhat.com>