From: SelvaKumar S <selvakuma.s1@samsung.com>
To: linux-nvme@lists.infradead.org
Cc: axboe@kernel.dk, damien.lemoal@wdc.com, kch@kernel.org,
SelvaKumar S <selvakuma.s1@samsung.com>,
sagi@grimberg.me, snitzer@redhat.com, selvajove@gmail.com,
linux-kernel@vger.kernel.org, nj.shetty@samsung.com,
linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
dm-devel@redhat.com, joshi.k@samsung.com,
javier.gonz@samsung.com, kbusch@kernel.org, joshiiitr@gmail.com,
hch@lst.de
Subject: [RFC PATCH v5 1/4] block: make bio_map_kern() non static
Date: Fri, 19 Feb 2021 18:15:14 +0530 [thread overview]
Message-ID: <20210219124517.79359-2-selvakuma.s1@samsung.com> (raw)
In-Reply-To: <20210219124517.79359-1-selvakuma.s1@samsung.com>
Make bio_map_kern() non static, so that copy offload emulation can use
it to add vmalloced memory to bio.
Signed-off-by: SelvaKumar S <selvakuma.s1@samsung.com>
Signed-off-by: Chaitanya Kulkarni <kch@kernel.org>
---
block/blk-map.c | 2 +-
include/linux/blkdev.h | 2 ++
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/block/blk-map.c b/block/blk-map.c
index 21630dccac62..17381b1643b8 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -378,7 +378,7 @@ static void bio_map_kern_endio(struct bio *bio)
* Map the kernel address into a bio suitable for io to a block
* device. Returns an error pointer in case of error.
*/
-static struct bio *bio_map_kern(struct request_queue *q, void *data,
+struct bio *bio_map_kern(struct request_queue *q, void *data,
unsigned int len, gfp_t gfp_mask)
{
unsigned long kaddr = (unsigned long)data;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f94ee3089e01..699ace6b25ff 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -944,6 +944,8 @@ extern int blk_rq_map_user(struct request_queue *, struct request *,
struct rq_map_data *, void __user *, unsigned long,
gfp_t);
extern int blk_rq_unmap_user(struct bio *);
+struct bio *bio_map_kern(struct request_queue *q, void *data, unsigned int len,
+ gfp_t gfp_mask);
extern int blk_rq_map_kern(struct request_queue *, struct request *, void *, unsigned int, gfp_t);
extern int blk_rq_map_user_iov(struct request_queue *, struct request *,
struct rq_map_data *, const struct iov_iter *,
--
2.25.1
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next prev parent reply other threads:[~2021-02-20 2:02 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210219124555epcas5p1334e7c4d64ada5dc4a2ca0feb48c1d44@epcas5p1.samsung.com>
2021-02-19 12:45 ` [RFC PATCH v5 0/4] add simple copy support SelvaKumar S
[not found] ` <CGME20210219124559epcas5p41da46f1c248e334953d407a154697903@epcas5p4.samsung.com>
2021-02-19 12:45 ` SelvaKumar S [this message]
[not found] ` <CGME20210219124603epcas5p33add0f2c1781b2a4d71bf30c9e1ac647@epcas5p3.samsung.com>
2021-02-19 12:45 ` [RFC PATCH v5 2/4] block: " SelvaKumar S
2021-02-20 4:59 ` Damien Le Moal
2021-04-07 11:32 ` Selva Jove
2021-04-12 0:24 ` Damien Le Moal
2021-04-12 14:34 ` Selva Jove
2021-04-13 0:32 ` Damien Le Moal
2021-04-14 6:58 ` Selva Jove
[not found] ` <CGME20210219124608epcas5p2a673f9e00c3e7b5352f115497b0e2d98@epcas5p2.samsung.com>
2021-02-19 12:45 ` [RFC PATCH v5 3/4] nvme: " SelvaKumar S
2021-02-20 3:36 ` Matthew Wilcox
2021-02-22 15:57 ` Selva Jove
[not found] ` <CGME20210219124611epcas5p1c775b63b537e75da161556e375fcf05e@epcas5p1.samsung.com>
2021-02-19 12:45 ` [RFC PATCH v5 4/4] dm kcopyd: add simple copy offload support SelvaKumar S
2021-02-20 18:01 ` [RFC PATCH v5 0/4] add simple copy support David Laight
2021-02-20 19:08 ` Matthew Wilcox
2021-02-20 19:19 ` Keith Busch
2021-02-21 23:52 ` Dave Chinner
2021-02-23 9:14 ` Selva Jove
2021-02-22 1:31 ` Ming Lei
2021-02-22 6:52 ` Su Yue
2021-02-23 9:00 ` Selva Jove
2021-04-10 0:21 ` Max Gurtovoy
2021-04-10 0:29 ` Chaitanya Kulkarni
2021-04-10 6:32 ` Javier González
2021-04-11 9:10 ` Max Gurtovoy
2021-04-11 19:26 ` Javier González
2021-04-13 15:38 ` Max Gurtovoy
2021-04-13 18:25 ` Javier González
2021-04-13 18:36 ` Chaitanya Kulkarni
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