Re: [PATCH 4/4] btrfs-progs: Fix the return value when executing 'btrfs pro get' on a uncompress file.

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On Tue, Apr 15, 2014 at 8:04 AM, Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> wrote:
> When executing 'btrfs pro get' on a file which is not compressed, return
> value will always be 50 since prop_compress() return -ENOATTR.
>
> But this should be ignored and other prop_XXX() returns 0, so when
> prop_compress() is executed on uncompress file, it should return 0.
>
> Signed-off-by: Qu Wenruo <quwenro@xxxxxxxxxxxxxx>
> ---
>  props.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/props.c b/props.c
> index 4d0aeea..49ee982 100644
> --- a/props.c
> +++ b/props.c
> @@ -146,6 +146,7 @@ static int prop_compression(enum prop_object_type type,
>                         fprintf(stderr,
>                                 "ERROR: failed to %s compression for %s. %s\n",
>                                 value ? "set" : "get", object, strerror(-ret));
> +               ret = 0;
>                 goto out;

Hi Qu,

So this should set ret to 0 if error ==  -ENOATTR. And of course the
check above should be against  -ENOATTR and not -ENODATA.

thanks


>         }
>         if (!value) {
> --
> 1.9.2
>
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