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| author | Mike Christie <mchristi@redhat.com> | 2008-11-05 02:47:19 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-11-05 18:48:23 +0100 |
| commit | 939c2288c35132fe340b2694c7d02cacf7593723 (patch) | |
| tree | 17eb0c6c2a9fba59283e27e154819cdbc22deb7a /drivers/scsi/scsi_error.c | |
| parent | [SCSI] zfcp: Fix hexdump data in s390dbf traces (diff) | |
| download | linux-939c2288c35132fe340b2694c7d02cacf7593723.tar.xz linux-939c2288c35132fe340b2694c7d02cacf7593723.zip | |
[SCSI] scsi_error regression: Fix idempotent command handling
Drivers want to be able to return DID_TRANSPORT_DISRUPTED and
have it do the right thing for commands like tape and passthrouh
as far as retries go. The LLDs previously used DID_BUS_BUSY or DID_ERROR
which followed the cmd->retries limit, but DID_TRANSPORT_DISRUPTED
was skipping that check so it could have caused a problem with tape
commands.
This patch has DID_TRANSPORT_DISRUPTED check the cmd->retries/cmd->allowed.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/scsi_error.c')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 94ed262bdf0c..386361778ebb 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1340,9 +1340,10 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd) * LLD/transport was disrupted during processing of the IO. * The transport class is now blocked/blocking, * and the transport will decide what to do with the IO - * based on its timers and recovery capablilities. + * based on its timers and recovery capablilities if + * there are enough retries. */ - return ADD_TO_MLQUEUE; + goto maybe_retry; case DID_TRANSPORT_FAILFAST: /* * The transport decided to failfast the IO (most likely |