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Diffstat (limited to 'drivers/block/rnbd/rnbd-srv-dev.c')
-rw-r--r--drivers/block/rnbd/rnbd-srv-dev.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/drivers/block/rnbd/rnbd-srv-dev.c b/drivers/block/rnbd/rnbd-srv-dev.c
deleted file mode 100644
index b241a099aeae..000000000000
--- a/drivers/block/rnbd/rnbd-srv-dev.c
+++ /dev/null
@@ -1,103 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * RDMA Network Block Driver
- *
- * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
- * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
- * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
- */
-#undef pr_fmt
-#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
-
-#include "rnbd-srv-dev.h"
-#include "rnbd-log.h"
-
-struct rnbd_dev *rnbd_dev_open(const char *path, fmode_t flags,
- struct bio_set *bs)
-{
- struct rnbd_dev *dev;
- int ret;
-
- dev = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- dev->blk_open_flags = flags;
- dev->bdev = blkdev_get_by_path(path, flags, THIS_MODULE);
- ret = PTR_ERR_OR_ZERO(dev->bdev);
- if (ret)
- goto err;
-
- dev->blk_open_flags = flags;
- bdevname(dev->bdev, dev->name);
- dev->ibd_bio_set = bs;
-
- return dev;
-
-err:
- kfree(dev);
- return ERR_PTR(ret);
-}
-
-void rnbd_dev_close(struct rnbd_dev *dev)
-{
- blkdev_put(dev->bdev, dev->blk_open_flags);
- kfree(dev);
-}
-
-void rnbd_dev_bi_end_io(struct bio *bio)
-{
- struct rnbd_dev_blk_io *io = bio->bi_private;
-
- rnbd_endio(io->priv, blk_status_to_errno(bio->bi_status));
- bio_put(bio);
-}
-
-/**
- * rnbd_bio_map_kern - map kernel address into bio
- * @data: pointer to buffer to map
- * @bs: bio_set to use.
- * @len: length in bytes
- * @gfp_mask: allocation flags for bio allocation
- *
- * Map the kernel address into a bio suitable for io to a block
- * device. Returns an error pointer in case of error.
- */
-struct bio *rnbd_bio_map_kern(void *data, struct bio_set *bs,
- unsigned int len, gfp_t gfp_mask)
-{
- unsigned long kaddr = (unsigned long)data;
- unsigned long end = (kaddr + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
- unsigned long start = kaddr >> PAGE_SHIFT;
- const int nr_pages = end - start;
- int offset, i;
- struct bio *bio;
-
- bio = bio_alloc_bioset(gfp_mask, nr_pages, bs);
- if (!bio)
- return ERR_PTR(-ENOMEM);
-
- offset = offset_in_page(kaddr);
- for (i = 0; i < nr_pages; i++) {
- unsigned int bytes = PAGE_SIZE - offset;
-
- if (len <= 0)
- break;
-
- if (bytes > len)
- bytes = len;
-
- if (bio_add_page(bio, virt_to_page(data), bytes,
- offset) < bytes) {
- /* we don't support partial mappings */
- bio_put(bio);
- return ERR_PTR(-EINVAL);
- }
-
- data += bytes;
- len -= bytes;
- offset = 0;
- }
-
- return bio;
-}