From: Christoph Hellwig <hch@lst.de>
To: Kanchan Joshi <joshi.k@samsung.com>
Cc: axboe@kernel.dk, hch@lst.de, kbusch@kernel.org,
io-uring@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-block@vger.kernel.org, gost.dev@samsung.com
Subject: Re: [PATCH for-next v10 4/7] nvme: refactor nvme_alloc_request
Date: Wed, 28 Sep 2022 19:19:32 +0200 [thread overview]
Message-ID: <20220928171932.GB17153@lst.de> (raw)
In-Reply-To: <20220927173610.7794-5-joshi.k@samsung.com>
> + if (!vec)
> + ret = blk_rq_map_user(q, req, NULL, ubuffer, bufflen,
> + GFP_KERNEL);
> + else {
> + struct iovec fast_iov[UIO_FASTIOV];
> + struct iovec *iov = fast_iov;
> + struct iov_iter iter;
> +
> + ret = import_iovec(rq_data_dir(req), ubuffer, bufflen,
> + UIO_FASTIOV, &iov, &iter);
> + if (ret < 0)
> goto out;
> +
> + ret = blk_rq_map_user_iov(q, req, NULL, &iter, GFP_KERNEL);
> + kfree(iov);
> + }
As mentioned before this is something that should got into blk-map.c
as a separate helper, and scsi_ioctl.c and sg.c should be switched to
use it as well.
Otherwise this looks good.
next prev parent reply other threads:[~2022-09-28 17:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220927174622epcas5p1685c0f97a7ee2ee13ba25f5fb58dff00@epcas5p1.samsung.com>
2022-09-27 17:36 ` [PATCH for-next v10 0/7] Fixed-buffer for uring-cmd/passthru Kanchan Joshi
2022-09-27 17:36 ` [PATCH for-next v10 1/7] io_uring: add io_uring_cmd_import_fixed Kanchan Joshi
2022-09-27 17:36 ` [PATCH for-next v10 2/7] io_uring: introduce fixed buffer support for io_uring_cmd Kanchan Joshi
2022-09-27 17:36 ` [PATCH for-next v10 3/7] nvme: refactor nvme_add_user_metadata Kanchan Joshi
2022-09-28 17:18 ` Christoph Hellwig
2022-09-29 11:28 ` Anuj Gupta
2022-09-27 17:36 ` [PATCH for-next v10 4/7] nvme: refactor nvme_alloc_request Kanchan Joshi
2022-09-28 17:19 ` Christoph Hellwig [this message]
2022-09-29 11:30 ` Anuj Gupta
2022-09-27 17:36 ` [PATCH for-next v10 5/7] block: factor out bio_map_get helper Kanchan Joshi
2022-09-28 17:31 ` Christoph Hellwig
2022-09-28 17:49 ` Jens Axboe
2022-09-28 17:53 ` Jens Axboe
2022-09-29 11:34 ` Anuj Gupta
2022-09-27 17:36 ` [PATCH for-next v10 6/7] block: extend functionality to map bvec iterator Kanchan Joshi
2022-09-28 17:40 ` Christoph Hellwig
2022-09-29 11:33 ` Anuj Gupta
2022-09-27 17:36 ` [PATCH for-next v10 7/7] nvme: wire up fixed buffer support for nvme passthrough Kanchan Joshi
2022-09-28 17:59 ` Christoph Hellwig
2022-09-29 11:36 ` Anuj Gupta
2022-09-28 14:28 ` [PATCH for-next v10 0/7] Fixed-buffer for uring-cmd/passthru Jens Axboe
2022-09-28 17:12 ` Christoph Hellwig
2022-09-28 17:13 ` Jens Axboe
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