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| author | Steffen Maier <maier@linux.vnet.ibm.com> | 2012-09-04 15:23:35 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-09-24 10:11:02 +0200 |
| commit | 43f60cbd56c4a3a8f7fb009ac52d6d57ac864921 (patch) | |
| tree | 3161f846752fb4090b622319c2bf2015394eedba /drivers/s390/scsi/zfcp_erp.c | |
| parent | [SCSI] zfcp: restore refcount check on port_remove (diff) | |
| download | linux-43f60cbd56c4a3a8f7fb009ac52d6d57ac864921.tar.xz linux-43f60cbd56c4a3a8f7fb009ac52d6d57ac864921.zip | |
[SCSI] zfcp: No automatic port_rescan on events
In FC fabrics with large zones, the automatic port_rescan on incoming ELS
and any adapter recovery can cause quite some traffic at the very same
time, especially if lots of Linux images share an HBA, which is common on
s390. This can cause trouble and failures. Fix this by making such port
rescans dependent on a user configurable module parameter.
The following unconditional automatic port rescans remain as is:
On setting an adapter online and
on manual user-triggered writes to the sysfs attribute port_rescan.
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_erp.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_erp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 92d3df6ac8ba..4133ab6e20f1 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1230,7 +1230,7 @@ static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result) case ZFCP_ERP_ACTION_REOPEN_ADAPTER: if (result == ZFCP_ERP_SUCCEEDED) { register_service_level(&adapter->service_level); - queue_work(adapter->work_queue, &adapter->scan_work); + zfcp_fc_conditional_port_scan(adapter); queue_work(adapter->work_queue, &adapter->ns_up_work); } else unregister_service_level(&adapter->service_level); |