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Re: [Qemu-block] [PATCH v11 1/3] bdrv_query_image_info Error parameter a
From: |
Daniel P . Berrangé |
Subject: |
Re: [Qemu-block] [PATCH v11 1/3] bdrv_query_image_info Error parameter added |
Date: |
Fri, 1 Feb 2019 14:46:32 +0000 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Fri, Feb 01, 2019 at 02:42:10PM +0000, Vladimir Sementsov-Ogievskiy wrote:
> 31.01.2019 16:46, Andrey Shinkevich wrote:
> > Inform a user in case qcow2_get_specific_info fails to obtain
> > QCOW2 image specific information. This patch is preliminary to
> > the print of bitmap information in the 'qemu-img info' output.
> >
> > Signed-off-by: Andrey Shinkevich <address@hidden>
> > Reviewed-by: Eric Blake <address@hidden>
> > ---
>
>
> [...]
>
> > --- a/block/crypto.c
> > +++ b/block/crypto.c
> > @@ -594,13 +594,13 @@ static int
> > block_crypto_get_info_luks(BlockDriverState *bs,
> > }
> >
> > static ImageInfoSpecific *
> > -block_crypto_get_specific_info_luks(BlockDriverState *bs)
> > +block_crypto_get_specific_info_luks(BlockDriverState *bs, Error **errp)
> > {
> > BlockCrypto *crypto = bs->opaque;
> > ImageInfoSpecific *spec_info;
> > QCryptoBlockInfo *info;
> >
> > - info = qcrypto_block_get_info(crypto->block, NULL);
> > + info = qcrypto_block_get_info(crypto->block, errp);
> > if (!info) {
> > return NULL;
> > }
>
> more context:
>
> if (info->format != Q_CRYPTO_BLOCK_FORMAT_LUKS) {
> qapi_free_QCryptoBlockInfo(info);
> return NULL;
> }
>
> for a fast look, I think it should be assertion, not if, Daniel, am I right?
Sure, it could be an assertion. In practice it should never trigger
eitherway.
> Also, I think we don't have block/crypto.c in Cryptography section of
> MAINTAINERS
> by mistake, so you were not CC'ed.
I tend to let the block maintainers merge patches under block/,
since that's largely block layer integration. The guts of the
block crypto stuff is under crypto/
Regards,
Daniel
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