From 785167a114855c5aa75efca97000e405c2cc85bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A5kon=20Bugge?= <haakon.bugge@oracle.com>
Date: Mon, 3 Aug 2020 08:19:41 +0200
Subject: [PATCH 1/1] IB/mlx4: Adjust delayed work when a dup is observed
Git-commit: 785167a114855c5aa75efca97000e405c2cc85bf
Patch-mainline: v5.10-rc1
References: bsc#1111666
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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When scheduling delayed work to clean up the cache, if the entry already
has been scheduled for deletion, we adjust the delay.

Fixes: 3cf69cc8dbeb ("IB/mlx4: Add CM paravirtualization")
Link: https://lore.kernel.org/r/20200803061941.1139994-7-haakon.bugge@oracle.com
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
---
 drivers/infiniband/hw/mlx4/cm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
index b10737f74449..0ce4b5a3ffa7 100644
--- a/drivers/infiniband/hw/mlx4/cm.c
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -291,6 +291,9 @@ static void schedule_delayed(struct ib_device *ibdev, struct id_map_entry *id)
 	if (!sriov->is_going_down && !id->scheduled_delete) {
 		id->scheduled_delete = 1;
 		schedule_delayed_work(&id->timeout, CM_CLEANUP_CACHE_TIMEOUT);
+	} else if (id->scheduled_delete) {
+		/* Adjust timeout if already scheduled */
+		mod_delayed_work(system_wq, &id->timeout, CM_CLEANUP_CACHE_TIMEOUT);
 	}
 	spin_unlock_irqrestore(&sriov->going_down_lock, flags);
 	spin_unlock(&sriov->id_map_lock);
-- 
2.29.2.405.gfdfcad78fd04