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[PATCH] Remove queue merging hooks

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We have full flexibility of merging parameters now, so we can remove the
hooks that define back/front/request merge strategies. Nobody is using
them anymore.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe
2006-12-19 08:33:11 +01:00
parent 2985259b0e
commit 1aa4f24fe9
3 changed files with 12 additions and 17 deletions
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12
include/linux/blkdev.h
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@@ -331,10 +331,6 @@ struct request_pm_state
#include <linux/elevator.h>
typedef int (merge_request_fn) (request_queue_t *, struct request *,
struct bio *);
typedef int (merge_requests_fn) (request_queue_t *, struct request *,
struct request *);
typedef void (request_fn_proc) (request_queue_t *q);
typedef int (make_request_fn) (request_queue_t *q, struct bio *bio);
typedef int (prep_rq_fn) (request_queue_t *, struct request *);
@@ -376,9 +372,6 @@ struct request_queue
struct request_list rq;
request_fn_proc *request_fn;
merge_request_fn *back_merge_fn;
merge_request_fn *front_merge_fn;
merge_requests_fn *merge_requests_fn;
make_request_fn *make_request_fn;
prep_rq_fn *prep_rq_fn;
unplug_fn *unplug_fn;
@@ -648,6 +641,11 @@ extern int scsi_cmd_ioctl(struct file *, struct gendisk *, unsigned int, void __
extern int sg_scsi_ioctl(struct file *, struct request_queue *,
struct gendisk *, struct scsi_ioctl_command __user *);
/*
* Temporary export, until SCSI gets fixed up.
*/
extern int ll_back_merge_fn(request_queue_t *, struct request *, struct bio *);
/*
* A queue has just exitted congestion. Note this in the global counter of
* congested queues, and wake up anyone who was waiting for requests to be