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block: kill blk_queue_flush()

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We don't have any drivers left using it, so kill it off. Update
documentation to use the newer blk_queue_write_cache().

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Jens Axboe
2016-03-30 10:19:30 -06:00
parent f935a8ce0a
commit 2245f6de6c
3 changed files with 2 additions and 23 deletions
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include/linux/blkdev.h
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@@ -1009,7 +1009,6 @@ extern void blk_queue_update_dma_alignment(struct request_queue *, int);
extern void blk_queue_softirq_done(struct request_queue *, softirq_done_fn *);
extern void blk_queue_rq_timed_out(struct request_queue *, rq_timed_out_fn *);
extern void blk_queue_rq_timeout(struct request_queue *, unsigned int);
extern void blk_queue_flush(struct request_queue *q, unsigned int flush);
extern void blk_queue_flush_queueable(struct request_queue *q, bool queueable);
extern void blk_queue_write_cache(struct request_queue *q, bool enabled, bool fua);
extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev);