linux-ext4 - Re: [PATCH 24/27] block: remove QUEUE_FLAG

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Message-ID: <0bf7bda0-0c19-7186-8492-ad894456d98d@nvidia.com>
Date:   Fri, 15 Apr 2022 05:47:45 +0000
From:   Chaitanya Kulkarni <chaitanyak@...dia.com>
To:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>
CC:     "dm-devel@...hat.com" <dm-devel@...hat.com>,
        "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>,
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        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Christoph Böhmwalder 
        <christoph.boehmwalder@...bit.com>,
        Jan Höppner <hoeppner@...ux.ibm.com>,
        Coly Li <colyli@...e.de>, David Sterba <dsterba@...e.com>
Subject: Re: [PATCH 24/27] block: remove QUEUE_FLAG_DISCARD

On 4/14/22 21:52, Christoph Hellwig wrote:
> Just use a non-zero max_discard_sectors as an indicator for discard
> support, similar to what is done for write zeroes.
> 
> The only places where needs special attention is the RAID5 driver,
> which must clear discard support for security reasons by default,
> even if the default stacking rules would allow for it.
> 
> Signed-off-by: Christoph Hellwig <hch@....de>
> Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>
> Acked-by: Christoph Böhmwalder <christoph.boehmwalder@...bit.com> [drbd]
> Acked-by: Jan Höppner <hoeppner@...ux.ibm.com> [s390]
> Acked-by: Coly Li <colyli@...e.de> [bcache]
> Acked-by: David Sterba <dsterba@...e.com> [btrfs]
> ---


Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@...dia.com>

-ck