linux-kernel - Re: [PATCH v2 0/3] xen-blk{front,back}: Fix the broken semantic and flow of feature-persistent

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Date:   Thu, 1 Sep 2022 17:21:01 +0200
From:   Juergen Gross <jgross@...e.com>
To:     SeongJae Park <sj@...nel.org>, roger.pau@...rix.com
Cc:     marmarek@...isiblethingslab.com, mheyne@...zon.de,
        xen-devel@...ts.xenproject.org, axboe@...nel.dk, ptyadav@...zon.de,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] xen-blk{front,back}: Fix the broken semantic and
 flow of feature-persistent

On 31.08.22 18:58, SeongJae Park wrote:
> Changes from v1
> (https://lore.kernel.org/xen-devel/20220825161511.94922-1-sj@kernel.org/)
> - Fix the wrong feature_persistent caching position of blkfront
> - Set blkfront's feature_persistent field setting with simple '&&'
>    instead of 'if' (Pratyush Yadav)
> 
> This patchset fixes misuse of the 'feature-persistent' advertisement
> semantic (patches 1 and 2), and the wrong timing of the
> 'feature_persistent' value caching, which made persistent grants feature
> always disabled.
> 
> SeongJae Park (3):
>    xen-blkback: Advertise feature-persistent as user requested
>    xen-blkfront: Advertise feature-persistent as user requested
>    xen-blkfront: Cache feature_persistent value before advertisement
> 
>   drivers/block/xen-blkback/common.h |  3 +++
>   drivers/block/xen-blkback/xenbus.c |  6 ++++--
>   drivers/block/xen-blkfront.c       | 20 ++++++++++++--------
>   3 files changed, 19 insertions(+), 10 deletions(-)
> 

For the whole series:

Reviewed-by: Juergen Gross <jgross@...e.com>


Juergen

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