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authorHannes Reinecke <hare@suse.de>2018-06-06 16:21:40 +0200
committerJens Axboe <axboe@kernel.dk>2018-06-06 08:36:03 -0600
commit84fca1b0c461e741268fe947f641296c0d963a56 (patch)
treec945248ad034ddedf55e95dbb6c25fdf58a1560a /block
parent07ce213f63fbc389c8fcaefab6267b3bc0a12796 (diff)
downloadlinux-84fca1b0c461e741268fe947f641296c0d963a56.tar.bz2
block: pass failfast and driver-specific flags to flush requests
If flush requests are being sent to the device we need to inherit the failfast and driver-specific flags, too, otherwise I/O will fail. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-flush.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c
index f17170675917..058abdb50f31 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -94,7 +94,7 @@ enum {
};
static bool blk_kick_flush(struct request_queue *q,
- struct blk_flush_queue *fq);
+ struct blk_flush_queue *fq, unsigned int flags);
static unsigned int blk_flush_policy(unsigned long fflags, struct request *rq)
{
@@ -212,7 +212,7 @@ static bool blk_flush_complete_seq(struct request *rq,
BUG();
}
- kicked = blk_kick_flush(q, fq);
+ kicked = blk_kick_flush(q, fq, rq->cmd_flags);
return kicked | queued;
}
@@ -281,6 +281,7 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
* blk_kick_flush - consider issuing flush request
* @q: request_queue being kicked
* @fq: flush queue
+ * @flags: cmd_flags of the original request
*
* Flush related states of @q have changed, consider issuing flush request.
* Please read the comment at the top of this file for more info.
@@ -291,7 +292,8 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
* RETURNS:
* %true if flush was issued, %false otherwise.
*/
-static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
+static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq,
+ unsigned int flags)
{
struct list_head *pending = &fq->flush_queue[fq->flush_pending_idx];
struct request *first_rq =
@@ -346,6 +348,7 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
}
flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH;
+ flush_rq->cmd_flags |= (flags & REQ_DRV) | (flags & REQ_FAILFAST_MASK);
flush_rq->rq_flags |= RQF_FLUSH_SEQ;
flush_rq->rq_disk = first_rq->rq_disk;
flush_rq->end_io = flush_end_io;