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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 <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2017-01-31 16:57:29 +01:00 • committed by Jens Axboe
commit 57292b58dd
21 changed files with 59 additions and 53 deletions
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block/blk.h
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@ -249,7 +249,7 @@ static inline int blk_do_io_stat(struct request *rq)
{
return rq->rq_disk &&
(rq->rq_flags & RQF_IO_STAT) &&
(rq->cmd_type == REQ_TYPE_FS);
!blk_rq_is_passthrough(rq);
}
/*