From: Nitesh Shetty <nj.shetty@samsung.com>
To: Minwoo Im <minwoo.im.dev@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>, Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@kernel.org>,
dm-devel@redhat.com, Keith Busch <kbusch@kernel.org>,
Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
James Smart <james.smart@broadcom.com>,
Chaitanya Kulkarni <kch@nvidia.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
bvanassche@acm.org, hare@suse.de, ming.lei@redhat.com,
damien.lemoal@opensource.wdc.com, anuj20.g@samsung.com,
joshi.k@samsung.com, nitheshshetty@gmail.com,
gost.dev@samsung.com, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v7 2/8] block: Add copy offload support infrastructure
Date: Wed, 22 Feb 2023 11:42:36 +0530 [thread overview]
Message-ID: <20230222061236.GA13158@green5> (raw)
In-Reply-To: <Y/VapDeE98+A6/G2@minwoo-desktop>
[-- Attachment #1: Type: text/plain, Size: 1112 bytes --]
On Wed, Feb 22, 2023 at 08:58:28AM +0900, Minwoo Im wrote:
> > +/*
> > + * @bdev_in: source block device
> > + * @pos_in: source offset
> > + * @bdev_out: destination block device
> > + * @pos_out: destination offset
>
> @len is missing here.
>
acked
> > + * @end_io: end_io function to be called on completion of copy operation,
> > + * for synchronous operation this should be NULL
> > + * @private: end_io function will be called with this private data, should be
> > + * NULL, if operation is synchronous in nature
> > + * @gfp_mask: memory allocation flags (for bio_alloc)
> > + *
> > + * Returns the length of bytes copied or a negative error value
> > + *
> > + * Description:
> > + * Copy source offset from source block device to destination block
> > + * device. length of a source range cannot be zero. Max total length of
> > + * copy is limited to MAX_COPY_TOTAL_LENGTH
> > + */
> > +int blkdev_issue_copy(struct block_device *bdev_in, loff_t pos_in,
> > + struct block_device *bdev_out, loff_t pos_out, size_t len,
> > + cio_iodone_t end_io, void *private, gfp_t gfp_mask)
>
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next prev parent reply other threads:[~2023-02-22 9:02 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20230220105423epcas5p4618b6fa4fadde27086180841be87638b@epcas5p4.samsung.com>
2023-02-20 10:53 ` [PATCH v7 0/8] Implement copy offload support Nitesh Shetty
[not found] ` <CGME20230220105432epcas5p2dc91dbe3588d8f45bf312bde2683791a@epcas5p2.samsung.com>
2023-02-20 10:53 ` [PATCH v7 1/8] block: Introduce queue limits for copy-offload support Nitesh Shetty
[not found] ` <CGME20230220105441epcas5p49ffde763aae06db301804175e85f9472@epcas5p4.samsung.com>
2023-02-20 10:53 ` [PATCH v7 2/8] block: Add copy offload support infrastructure Nitesh Shetty
2023-02-21 23:58 ` Minwoo Im
2023-02-22 6:12 ` Nitesh Shetty [this message]
[not found] ` <CGME20230220105453epcas5p32b30be5c5b4b21fe0bd4500a560b2b9b@epcas5p3.samsung.com>
2023-02-20 10:53 ` [PATCH v7 3/8] block: add emulation for copy Nitesh Shetty
[not found] ` <CGME20230220105503epcas5p2cb05eb671de6954b7604e49ebd23ce41@epcas5p2.samsung.com>
2023-02-20 10:53 ` [PATCH v7 4/8] fs, block: copy_file_range for def_blk_ops for direct block device Nitesh Shetty
2023-02-20 15:18 ` kernel test robot
2023-02-20 21:56 ` kernel test robot
2023-02-20 22:27 ` kernel test robot
[not found] ` <CGME20230220105512epcas5p15e1171c05e5ceda614d4f196672ad678@epcas5p1.samsung.com>
2023-02-20 10:53 ` [PATCH v7 5/8] nvme: add copy offload support Nitesh Shetty
[not found] ` <CGME20230220105520epcas5p34fe94decec6573d9b7b3df5df9286ef7@epcas5p3.samsung.com>
2023-02-20 10:53 ` [PATCH v7 6/8] nvmet: add copy command support for bdev and file ns Nitesh Shetty
[not found] ` <CGME20230220105529epcas5p447cd449f13da54794e391b78bd1f5956@epcas5p4.samsung.com>
2023-02-20 10:53 ` [PATCH v7 7/8] dm: Add support for copy offload Nitesh Shetty
[not found] ` <CGME20230220105537epcas5p386dd5c28197f055a8c548cca109d913c@epcas5p3.samsung.com>
2023-02-20 10:53 ` [PATCH v7 8/8] dm: Enable copy offload for dm-linear target Nitesh Shetty
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