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| author | Hannes Reinecke <hare@suse.de> | 2016-02-19 11:17:07 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-02-24 05:27:02 +0300 |
| commit | 28261402ddae5e6753fc6e25fae9fe492b869898 (patch) | |
| tree | a51718f48b6ddc03164921a3d27817a2c33c67b7 /drivers/scsi | |
| parent | a4253fde53fda56c2116a1cf8df9c93ef272eab4 (diff) | |
| download | linux-28261402ddae5e6753fc6e25fae9fe492b869898.tar.xz | |
revert commit a8e5a2d593cb ("[SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is transitioning")
This reverts commit a8e5a2d593cbfccf530c3382c2c328d2edaa7b66
Obsoleted by the next patch.
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/device_handler/scsi_dh_alua.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index a6fe3ae50c25..0ae25368ce44 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -92,7 +92,7 @@ struct alua_dh_data { #define ALUA_POLICY_SWITCH_CURRENT 0 #define ALUA_POLICY_SWITCH_ALL 1 -static int alua_rtpg(struct scsi_device *, struct alua_port_group *, int); +static int alua_rtpg(struct scsi_device *, struct alua_port_group *); static char print_alua_state(int); static void release_port_group(struct kref *kref) @@ -326,7 +326,7 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h, ALUA_DH_NAME, h->pg->device_id_str, h->group_id, h->rel_port); - return alua_rtpg(sdev, h->pg, 0); + return alua_rtpg(sdev, h->pg); } static char print_alua_state(int state) @@ -409,13 +409,12 @@ static int alua_check_sense(struct scsi_device *sdev, /* * alua_rtpg - Evaluate REPORT TARGET GROUP STATES * @sdev: the device to be evaluated. - * @wait_for_transition: if nonzero, wait ALUA_FAILOVER_TIMEOUT seconds for device to exit transitioning state * * Evaluate the Target Port Group State. * Returns SCSI_DH_DEV_OFFLINED if the path is * found to be unusable. */ -static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int wait_for_transition) +static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg) { struct scsi_sense_hdr sense_hdr; int len, k, off, valid_states = 0, bufflen = ALUA_RTPG_SIZE; @@ -506,8 +505,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int w else pg->transition_tmo = ALUA_FAILOVER_TIMEOUT; - if (wait_for_transition && - (orig_transition_tmo != pg->transition_tmo)) { + if (orig_transition_tmo != pg->transition_tmo) { sdev_printk(KERN_INFO, sdev, "%s: transition timeout set to %d seconds\n", ALUA_DH_NAME, pg->transition_tmo); @@ -545,19 +543,14 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_port_group *pg, int w switch (pg->state) { case TPGS_STATE_TRANSITIONING: - if (wait_for_transition) { - if (time_before(jiffies, expiry)) { - /* State transition, retry */ - interval += 2000; - msleep(interval); - goto retry; - } - err = SCSI_DH_RETRY; - } else { - err = SCSI_DH_OK; + if (time_before(jiffies, expiry)) { + /* State transition, retry */ + interval += 2000; + msleep(interval); + goto retry; } - /* Transitioning time exceeded, set port to standby */ + err = SCSI_DH_RETRY; pg->state = TPGS_STATE_STANDBY; break; case TPGS_STATE_OFFLINE: @@ -713,14 +706,14 @@ static int alua_activate(struct scsi_device *sdev, if (optimize_stpg) h->pg->flags |= ALUA_OPTIMIZE_STPG; - err = alua_rtpg(sdev, h->pg, 1); + err = alua_rtpg(sdev, h->pg); if (err != SCSI_DH_OK) { kref_put(&h->pg->kref, release_port_group); goto out; } err = alua_stpg(sdev, h->pg); if (err == SCSI_DH_RETRY) - err = alua_rtpg(sdev, h->pg, 1); + err = alua_rtpg(sdev, h->pg); kref_put(&h->pg->kref, release_port_group); out: if (fn) |