From: Christoph Hellwig <hch@lst.de>
To: "Alexander V. Buev" <a.buev@yadro.com>
Cc: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@lst.de>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Mikhail Malygin <m.malygin@yadro.com>,
linux@yadro.com
Subject: Re: [PATCH 3/3] block: fops: handle IOCB_USE_PI in direct IO
Date: Thu, 28 Oct 2021 17:17:37 +0200 [thread overview]
Message-ID: <20211028151737.GB9468@lst.de> (raw)
In-Reply-To: <20211028112406.101314-4-a.buev@yadro.com>
> + struct blk_integrity *bi = blk_get_integrity(bdev->bd_disk);
> + unsigned int intervals;
> +
> + /* Last iovec contains protection information. */
> + if (!iter->nr_segs)
> + return -EINVAL;
> +
> + iter->nr_segs--;
> + pi_iov = (struct iovec *)(iter->iov + iter->nr_segs);
Please don't poke into the iov_iter abstractions. This will break
with PI in anything but ITER_IOVEC buffers.
next prev parent reply other threads:[~2021-10-28 15:17 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-28 11:24 [PATCH 0/3] implement direct IO with integrity Alexander V. Buev
2021-10-28 11:24 ` [PATCH 1/3] block: bio-integrity: add PI iovec to bio Alexander V. Buev
2021-10-28 15:16 ` Christoph Hellwig
2021-10-29 0:11 ` Chaitanya Kulkarni
2021-10-29 4:27 ` Martin K. Petersen
2021-10-29 10:59 ` Alexander V. Buev
2021-10-29 8:40 ` kernel test robot
2021-10-29 8:53 ` kernel test robot
2021-10-29 9:48 ` kernel test robot
2021-10-28 11:24 ` [PATCH 2/3] block: io_uring: add IO_WITH_PI flag to SQE Alexander V. Buev
2021-10-28 11:24 ` [PATCH 3/3] block: fops: handle IOCB_USE_PI in direct IO Alexander V. Buev
2021-10-28 15:17 ` Christoph Hellwig [this message]
2021-10-29 9:04 ` kernel test robot
2021-10-28 15:13 ` [PATCH 0/3] implement direct IO with integrity Jens Axboe
2021-10-28 15:18 ` Christoph Hellwig
2021-10-28 15:20 ` Jens Axboe
2021-10-28 15:44 ` Mikhail Malygin
2021-10-28 15:50 ` Jens Axboe
2021-10-28 15:56 ` Pavel Begunkov
2021-10-28 16:22 ` Jens Axboe
2021-10-28 17:11 ` Pavel Begunkov
2021-10-28 17:45 ` Jens Axboe
2021-10-29 3:39 ` Martin K. Petersen
2021-10-28 15:25 ` Jens Axboe
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