From: Dan Williams <dan.j.williams@xxxxxxxxx>
-------------------
This is a commit scheduled for the next v2.6.34 longterm release.
http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
If you see a problem with using this for longterm, please comment.
-------------------
commit 26f2f199ff150d8876b2641c41e60d1c92d2fb81 upstream.
Continue running revalidation until no more broadcast devices are
discovered. Fixes cases where re-discovery completes too early in a
domain with multiple expanders with pending re-discovery events.
Servicing BCNs can get backed up behind error recovery.
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
drivers/scsi/libsas/sas_expander.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 4ee42bb48dcd..cb4964b54191 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -1947,9 +1947,7 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
struct domain_device *dev = NULL;
res = sas_find_bcast_dev(port_dev, &dev);
- if (res)
- goto out;
- if (dev) {
+ while (res == 0 && dev) {
struct expander_device *ex = &dev->ex_dev;
int i = 0, phy_id;
@@ -1961,8 +1959,10 @@ int sas_ex_revalidate_domain(struct domain_device *port_dev)
res = sas_rediscover(dev, phy_id);
i = phy_id + 1;
} while (i < ex->num_phys);
+
+ dev = NULL;
+ res = sas_find_bcast_dev(port_dev, &dev);
}
-out:
return res;
}
--
1.8.5.2
--
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