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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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4
drivers/scsi/scsi_error.c
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@@ -1106,7 +1106,7 @@ static int scsi_request_sense(struct scsi_cmnd *scmd)
static int scsi_eh_action(struct scsi_cmnd *scmd, int rtn)
{
if (scmd->request->cmd_type != REQ_TYPE_BLOCK_PC) {
if (!blk_rq_is_passthrough(scmd->request)) {
struct scsi_driver *sdrv = scsi_cmd_to_driver(scmd);
if (sdrv->eh_action)
rtn = sdrv->eh_action(scmd, rtn);
@@ -1746,7 +1746,7 @@ check_type:
* the check condition was retryable.
*/
if (scmd->request->cmd_flags & REQ_FAILFAST_DEV ||
scmd->request->cmd_type == REQ_TYPE_BLOCK_PC)
blk_rq_is_passthrough(scmd->request))
return 1;
else
return 0;