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From: John Garry <john.g.garry@oracle.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: Damien Le Moal <dlemoal@kernel.org>,
	Niklas Cassel <cassel@kernel.org>, Song Liu <song@kernel.org>,
	Yu Kuai <yukuai3@huawei.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Bart Van Assche <bvanassche@acm.org>,
	linux-block@vger.kernel.org, linux-ide@vger.kernel.org,
	linux-raid@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: [PATCH 6/7] block: remove the fallback case in queue_dma_alignment
Date: Tue, 25 Jun 2024 13:03:19 +0100	[thread overview]
Message-ID: <7b800a42-e3cb-4c1c-9a29-74907fcb2c8b@oracle.com> (raw)
In-Reply-To: <20240625110603.50885-7-hch@lst.de>

On 25/06/2024 12:05, Christoph Hellwig wrote:
> Now that all updates go through blk_validate_limits the default of 511
> is set at initialization time.

The code handles q == NULL case, so is q == NULL now impossible?

> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>   include/linux/blkdev.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index e23fc418bb2260..d93fba7a1f3162 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -1393,7 +1393,7 @@ static inline bool bdev_is_zone_start(struct block_device *bdev,
>   
>   static inline int queue_dma_alignment(const struct request_queue *q)
>   {
> -	return q ? q->limits.dma_alignment : 511;
> +	return q->limits.dma_alignment;
>   }
>   
>   static inline unsigned int


  reply	other threads:[~2024-06-25 12:06 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-25 11:05 queue_limits fixups and tidyups Christoph Hellwig
2024-06-25 11:05 ` [PATCH 1/7] md: set md-specific flags for all queue limits Christoph Hellwig
2024-06-26 11:32   ` kernel test robot
2024-06-25 11:05 ` [PATCH 2/7] block: correctly report cache type Christoph Hellwig
2024-06-25 11:05 ` [PATCH 3/7] block: rename BLK_FLAG_MISALIGNED Christoph Hellwig
2024-06-25 11:24   ` John Garry
2024-06-25 14:34     ` Christoph Hellwig
2024-06-25 11:05 ` [PATCH 4/7] block: conding style fixup for blk_queue_max_guaranteed_bio Christoph Hellwig
2024-06-25 11:26   ` John Garry
2024-06-25 11:05 ` [PATCH 5/7] block: remove disk_update_readahead Christoph Hellwig
2024-06-25 11:05 ` [PATCH 6/7] block: remove the fallback case in queue_dma_alignment Christoph Hellwig
2024-06-25 12:03   ` John Garry [this message]
2024-06-25 14:34     ` Christoph Hellwig
2024-06-25 11:05 ` [PATCH 7/7] block: move dma_pad_mask into queue_limits Christoph Hellwig
2024-06-26  4:44   ` kernel test robot

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