1fe0640ff9
The memory mapped in process_rdma is contiguous, so there is no need to loop over bio_add_page. Remove rnbd_bio_map_kern and just open code the bio allocation and mapping in the caller. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jack Wang <jinpu.wang@ionons.com> Tested-by: Jack Wang <jinpu.wang@ionos.com> Link: https://lore.kernel.org/r/20220124091107.642561-11-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* RDMA Network Block Driver
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*
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* Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
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* Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
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* Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
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*/
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#undef pr_fmt
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#define pr_fmt(fmt) KBUILD_MODNAME " L" __stringify(__LINE__) ": " fmt
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#include "rnbd-srv-dev.h"
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#include "rnbd-log.h"
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struct rnbd_dev *rnbd_dev_open(const char *path, fmode_t flags,
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struct bio_set *bs)
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{
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struct rnbd_dev *dev;
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int ret;
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dev = kzalloc(sizeof(*dev), GFP_KERNEL);
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if (!dev)
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return ERR_PTR(-ENOMEM);
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dev->blk_open_flags = flags;
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dev->bdev = blkdev_get_by_path(path, flags, THIS_MODULE);
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ret = PTR_ERR_OR_ZERO(dev->bdev);
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if (ret)
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goto err;
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dev->blk_open_flags = flags;
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bdevname(dev->bdev, dev->name);
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dev->ibd_bio_set = bs;
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return dev;
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err:
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kfree(dev);
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return ERR_PTR(ret);
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}
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void rnbd_dev_close(struct rnbd_dev *dev)
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{
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blkdev_put(dev->bdev, dev->blk_open_flags);
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kfree(dev);
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}
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