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block: Use pointer to backing_dev_info from request_queue

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We will want to have struct backing_dev_info allocated separately from
struct request_queue. As the first step add pointer to backing_dev_info
to request_queue and convert all users touching it. No functional
changes in this patch.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jan Kara
2017-02-02 15:56:50 +01:00
committed by Jens Axboe
parent f44f1ab5a2
commit dc3b17cc8b
33 changed files with 90 additions and 86 deletions
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3
include/linux/blkdev.h
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@@ -432,7 +432,8 @@ struct request_queue {
*/
struct delayed_work delay_work;
struct backing_dev_info backing_dev_info;
struct backing_dev_info *backing_dev_info;
struct backing_dev_info _backing_dev_info;
/*
* The queue owner gets to use this for whatever they like.