fence-agents/RHEL-56840-fence_scsi-only-preempt-once-for-mpath-devices.patch

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From cb57f1c2ee734a40d01249305965ea4ecdf02039 Mon Sep 17 00:00:00 2001
From: Oyvind Albrigtsen <oalbrigt@redhat.com>
Date: Thu, 5 Sep 2024 09:06:34 +0200
Subject: [PATCH] fence_scsi: preempt clears all devices on the mpath device,
so only run it for the first device
---
agents/scsi/fence_scsi.py | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/agents/scsi/fence_scsi.py b/agents/scsi/fence_scsi.py
index a1598411c..12f7fb49b 100644
--- a/agents/scsi/fence_scsi.py
+++ b/agents/scsi/fence_scsi.py
@@ -131,11 +131,13 @@ def reset_dev(options, dev):
return run_cmd(options, options["--sg_turs-path"] + " " + dev)["rc"]
-def register_dev(options, dev, key):
+def register_dev(options, dev, key, do_preempt=True):
dev = os.path.realpath(dev)
if re.search(r"^dm", dev[5:]):
- for slave in get_mpath_slaves(dev):
- register_dev(options, slave, key)
+ devices = get_mpath_slaves(dev)
+ register_dev(options, devices[0], key)
+ for device in devices[1:]:
+ register_dev(options, device, key, False)
return True
# Check if any registration exists for the key already. We track this in
@@ -153,7 +155,7 @@ def register_dev(options, dev, key):
# If key matches, make sure it matches with the connection that
# exists right now. To do this, we can issue a preempt with same key
# which should replace the old invalid entries from the target.
- if not preempt(options, key, dev, key):
+ if do_preempt and not preempt(options, key, dev, key):
return False
# If there was no reservation, we need to issue another registration