ef223cfd47
1. When generating cas_blk_rq_append_bio, check whether a version with double pointer compiles successfully. This is a better criteria than the version with single pointer since the latter may compile successfully regardless of kernel blk_rq_append_bio prototype. 2. Always provide single pointer to cas_blk_rq_append_bio macro - its up to cas_blk_rq_append_bio implementation to decide whether extra level of indirection is needed. This fixes compilation with kernel 4.14.98. Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
40 lines
925 B
Bash
40 lines
925 B
Bash
#!/bin/bash
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#
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# Copyright(c) 2012-2019 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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#
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. `dirname $0`/conf_framework
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if compile_module "blk_make_request(NULL, NULL, 0)" "linux/blkdev.h"
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then
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add_function "
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static inline struct request *cas_blk_make_request(struct request_queue *q,
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struct bio *bio, gfp_t gfp_mask)
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{
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return blk_make_request(q, bio, gfp_mask);
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}"
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else
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add_function "
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static inline struct request *cas_blk_make_request(struct request_queue *q,
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struct bio *bio, gfp_t gfp_mask)
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{
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struct request *rq = blk_get_request(q, bio_data_dir(bio), gfp_mask);
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if (IS_ERR(rq))
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return rq;
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cas_blk_rq_set_block_pc(rq);
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rq->q = q;
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for_each_bio(bio) {
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struct bio *bounce_bio = bio;
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int ret;
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cas_blk_queue_bounce(q, &bounce_bio);
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ret = cas_blk_rq_append_bio(rq, bounce_bio);
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if (unlikely(ret)) {
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blk_put_request(rq);
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return ERR_PTR(ret);
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}
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}
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return rq;
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}"
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fi
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