| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.20 75/76] scsi: core: reset host byte in DID_NEXUS_FAILURE case | Date | Fri, 8 Mar 2019 13:50:27 +0100 |
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4.20-stable review patch. If anyone has any objections, please let me know.
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From: Martin Wilck <mwilck@suse.com>
commit 4a067cf823d9d8e50d41cfb618011c0d4a969c72 upstream.
Up to 4.12, __scsi_error_from_host_byte() would reset the host byte to DID_OK for various cases including DID_NEXUS_FAILURE. Commit 2a842acab109 ("block: introduce new block status code type") replaced this function with scsi_result_to_blk_status() and removed the host-byte resetting code for the DID_NEXUS_FAILURE case. As the line set_host_byte(cmd, DID_OK) was preserved for the other cases, I suppose this was an editing mistake.
The fact that the host byte remains set after 4.13 is causing problems with the sg_persist tool, which now returns success rather then exit status 24 when a RESERVATION CONFLICT error is encountered.
Fixes: 2a842acab109 "block: introduce new block status code type" Signed-off-by: Martin Wilck <mwilck@suse.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/scsi/scsi_lib.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -757,6 +757,7 @@ static blk_status_t scsi_result_to_blk_s set_host_byte(cmd, DID_OK); return BLK_STS_TARGET; case DID_NEXUS_FAILURE: + set_host_byte(cmd, DID_OK); return BLK_STS_NEXUS; case DID_ALLOC_FAILURE: set_host_byte(cmd, DID_OK);
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