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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 <[email protected]>
This commit is contained in:
Jens Axboe 2016-04-13 13:33:19 -06:00
commit c888a8f95a
8 changed files with 32 additions and 28 deletions
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11
block/blk-flush.c
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@ -95,17 +95,18 @@ enum {
static bool blk_kick_flush(struct request_queue *q,
struct blk_flush_queue *fq);
static unsigned int blk_flush_policy(unsigned int fflags, struct request *rq)
static unsigned int blk_flush_policy(unsigned long fflags, struct request *rq)
{
unsigned int policy = 0;
if (blk_rq_sectors(rq))
policy |= REQ_FSEQ_DATA;
if (fflags & REQ_FLUSH) {
if (fflags & (1UL << QUEUE_FLAG_WC)) {
if (rq->cmd_flags & REQ_FLUSH)
policy |= REQ_FSEQ_PREFLUSH;
if (!(fflags & REQ_FUA) && (rq->cmd_flags & REQ_FUA))
if (!(fflags & (1UL << QUEUE_FLAG_FUA)) &&
(rq->cmd_flags & REQ_FUA))
policy |= REQ_FSEQ_POSTFLUSH;
}
return policy;
@ -384,7 +385,7 @@ static void mq_flush_data_end_io(struct request *rq, int error)
void blk_insert_flush(struct request *rq)
{
struct request_queue *q = rq->q;
unsigned int fflags = q->flush_flags; /* may change, cache */
unsigned long fflags = q->queue_flags; /* may change, cache */
unsigned int policy = blk_flush_policy(fflags, rq);
struct blk_flush_queue *fq = blk_get_flush_queue(q, rq->mq_ctx);
@ -393,7 +394,7 @@ void blk_insert_flush(struct request *rq)
* REQ_FLUSH and FUA for the driver.
*/
rq->cmd_flags &= ~REQ_FLUSH;
if (!(fflags & REQ_FUA))
if (!(fflags & (1UL << QUEUE_FLAG_FUA)))
rq->cmd_flags &= ~REQ_FUA;
/*