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block: kill off q->flush_flags

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Now that we converted everything to the newer block write cache
interface, kill off the queue flush_flags and queueable flush
entries.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe
2016-04-13 13:33:19 -06:00
parent c875a7093f
commit c888a8f95a
8 changed files with 32 additions and 28 deletions
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5
include/linux/blkdev.h
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@@ -433,8 +433,6 @@ struct request_queue {
/*
* for flush operations
*/
unsigned int flush_flags;
unsigned int flush_not_queueable:1;
struct blk_flush_queue *fq;
struct list_head requeue_list;
@@ -493,6 +491,7 @@ struct request_queue {
#define QUEUE_FLAG_POLL 22 /* IO polling enabled if set */
#define QUEUE_FLAG_WC 23 /* Write back caching */
#define QUEUE_FLAG_FUA 24 /* device supports FUA writes */
#define QUEUE_FLAG_FLUSH_NQ 25 /* flush not queueuable */
#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \
(1 << QUEUE_FLAG_STACKABLE) | \
@@ -1365,7 +1364,7 @@ static inline unsigned int block_size(struct block_device *bdev)
static inline bool queue_flush_queueable(struct request_queue *q)
{
return !q->flush_not_queueable;
return !test_bit(QUEUE_FLAG_FLUSH_NQ, &q->queue_flags);
}
typedef struct {struct page *v;} Sector;