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block: rename and export rq_init()

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This rename rq_init() blk_rq_init() and export it. Any path that hands
the request to the block layer needs to call it to initialize the
request.

This is a preparation for large command support, which needs to
initialize the request in a proper way (that is, just doing a memset()
will not work).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
FUJITA Tomonori
2008-04-29 09:54:36 +02:00
committed by Jens Axboe
parent 992b5bceee
commit 2a4aa30c5f
4 changed files with 6 additions and 5 deletions
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5
block/blk-core.c
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@@ -107,7 +107,7 @@ struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev)
}
EXPORT_SYMBOL(blk_get_backing_dev_info);
void rq_init(struct request_queue *q, struct request *rq)
void blk_rq_init(struct request_queue *q, struct request *rq)
{
memset(rq, 0, sizeof(*rq));
@@ -120,6 +120,7 @@ void rq_init(struct request_queue *q, struct request *rq)
rq->tag = -1;
rq->ref_count = 1;
}
EXPORT_SYMBOL(blk_rq_init);
static void req_bio_endio(struct request *rq, struct bio *bio,
unsigned int nbytes, int error)
@@ -598,7 +599,7 @@ blk_alloc_request(struct request_queue *q, int rw, int priv, gfp_t gfp_mask)
if (!rq)
return NULL;
rq_init(q, rq);
blk_rq_init(q, rq);
/*
* first three bits are identical in rq->cmd_flags and bio->bi_rw,