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libfc: fix REC handling

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Currently fc_fcp_timeout doesn't check FC_RP_FLAGS_REC_SUPPORTED
flag first, this prevents REC request ever going out at all
to the target having REC support. So this patches fixes the
fc_fcp_timeout by checking FC_RP_FLAGS_REC_SUPPORTED flag first.

The changed order won't cause any issue during clearing
FC_RP_FLAGS_REC_SUPPORTED on failed IO with target not supporting
FC_RP_FLAGS_REC_SUPPORTED, since retry on failed IO would succeed.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
This commit is contained in:
Vasu Dev 2012-10-09 01:43:24 +00:00 committed by Robert Love
parent b69f0859dc
commit 5b97fabdc8
1 changed files with 3 additions and 3 deletions
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6
drivers/scsi/libfc/fc_fcp.c
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@ -1381,10 +1381,10 @@ static void fc_fcp_timeout(unsigned long data)
fsp->state |= FC_SRB_FCP_PROCESSING_TMO;
if (fsp->state & FC_SRB_RCV_STATUS)
fc_fcp_complete_locked(fsp);
else if (rpriv->flags & FC_RP_FLAGS_REC_SUPPORTED)
if (rpriv->flags & FC_RP_FLAGS_REC_SUPPORTED)
fc_fcp_rec(fsp);
else if (fsp->state & FC_SRB_RCV_STATUS)
fc_fcp_complete_locked(fsp);
else
fc_fcp_recovery(fsp, FC_TIMED_OUT);
fsp->state &= ~FC_SRB_FCP_PROCESSING_TMO;