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[SCSI] scsi_dh_alua: fix submit_stpg return 

submit_stpg() will always return failure so alua_activate() will report
failure via dm-multipath callback function.  Even though the stpg fired
successfuly dm-multipath does not know and always fails to change the
valid path.

By returning SCSI_DH_OK we're now skipping alua_activate()'s call to
activate_complete 'fn'.  But this is fine because stpg_endio() will call
it via h->callback_fn().

Signed-off-by: Joseph Gruher <joseph.r.gruher@intel.com>
Signed-off-by: Ilgu Hong <ilgu.hong@promise.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Joseph Gruher 2011-01-05 16:00:20 -05:00 committed by James Bottomley
parent aa023b8b2f
commit 7c66e9a5e6
1 changed files with 1 additions and 2 deletions
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3
drivers/scsi/device_handler/scsi_dh_alua.c
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@ -303,7 +303,6 @@ done:
static unsigned submit_stpg(struct alua_dh_data *h)
{
struct request *rq;
int err = SCSI_DH_RES_TEMP_UNAVAIL;
int stpg_len = 8;
struct scsi_device *sdev = h->sdev;
@ -332,7 +331,7 @@ static unsigned submit_stpg(struct alua_dh_data *h)
rq->end_io_data = h;
blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
return err;
return SCSI_DH_OK;
}
/*