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block: introduce blk_rq_is_passthrough

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This can be used to check for fs vs non-fs requests and basically
removes all knowledge of BLOCK_PC specific from the block layer,
as well as preparing for removing the cmd_type field in struct request.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2017-01-31 16:57:29 +01:00
committed by Jens Axboe
parent 09fc54ccc4
commit 57292b58dd
21 changed files with 59 additions and 53 deletions
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2
kernel/trace/blktrace.c
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@@ -712,7 +712,7 @@ static void blk_add_trace_rq(struct request_queue *q, struct request *rq,
if (likely(!bt))
return;
if (rq->cmd_type != REQ_TYPE_FS)
if (blk_rq_is_passthrough(rq))
what |= BLK_TC_ACT(BLK_TC_PC);
else
what |= BLK_TC_ACT(BLK_TC_FS);