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nvme: Use blk_rq_map_user_io helper

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User blk_rq_map_user_io instead of duplicating the same code at
different places

Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://lore.kernel.org/r/20220930062749.152261-6-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Anuj Gupta 2022-09-30 11:57:42 +05:30 committed by Jens Axboe
parent 6732932c83
commit 7f05635764
1 changed files with 2 additions and 16 deletions
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18
drivers/nvme/host/ioctl.c
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@ -88,22 +88,8 @@ static struct request *nvme_alloc_user_request(struct request_queue *q,
nvme_req(req)->flags |= NVME_REQ_USERCMD;
if (ubuffer && bufflen) {
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);
}
ret = blk_rq_map_user_io(req, NULL, ubuffer, bufflen,
GFP_KERNEL, vec, 0, 0, rq_data_dir(req));
if (ret)
goto out;
bio = req->bio;