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| author | Mike Christie <mchristi@redhat.com> | 2016-06-05 14:32:23 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-06-07 13:41:38 -0600 |
| commit | 3a5e02ced11e22ecd9da3d6710afe15bcfee1d10 (patch) | |
| tree | 78f6d1a737b01b559b61310b9355f1f7ecfdd54c /block/blk-flush.c | |
| parent | 4e1b2d52a80d79296a5d899d73249748dea71a53 (diff) | |
| download | lwn-3a5e02ced11e22ecd9da3d6710afe15bcfee1d10.tar.gz lwn-3a5e02ced11e22ecd9da3d6710afe15bcfee1d10.zip | |
block, drivers: add REQ_OP_FLUSH operation
This adds a REQ_OP_FLUSH operation that is sent to request_fn
based drivers by the block layer's flush code, instead of
sending requests with the request->cmd_flags REQ_FLUSH bit set.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-flush.c')
| -rw-r--r-- | block/blk-flush.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/blk-flush.c b/block/blk-flush.c index 9fd1f63a6348..21f0d5b0d2ca 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -29,7 +29,7 @@ * The actual execution of flush is double buffered. Whenever a request * needs to execute PRE or POSTFLUSH, it queues at * fq->flush_queue[fq->flush_pending_idx]. Once certain criteria are met, a - * flush is issued and the pending_idx is toggled. When the flush + * REQ_OP_FLUSH is issued and the pending_idx is toggled. When the flush * completes, all the requests which were pending are proceeded to the next * step. This allows arbitrary merging of different types of FLUSH/FUA * requests. @@ -330,7 +330,7 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq) } flush_rq->cmd_type = REQ_TYPE_FS; - flush_rq->cmd_flags = WRITE_FLUSH | REQ_FLUSH_SEQ; + req_set_op_attrs(flush_rq, REQ_OP_FLUSH, WRITE_FLUSH | REQ_FLUSH_SEQ); flush_rq->rq_disk = first_rq->rq_disk; flush_rq->end_io = flush_end_io; |