netdev - Re: [PATCH 1/1] net: rds: fix memory leak in rds_ib_flush_mr

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Date:   Thu, 06 Jun 2019 10:33:05 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     yanjun.zhu@...cle.com
Cc:     santosh.shilimkar@...cle.com, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, rds-devel@....oracle.com
Subject: Re: [PATCH 1/1] net: rds: fix memory leak in rds_ib_flush_mr_pool

From: Zhu Yanjun <yanjun.zhu@...cle.com>
Date: Thu,  6 Jun 2019 04:00:03 -0400

> When the following tests last for several hours, the problem will occur.
 ...
> When ibmr_ret is NULL, llist_entry is not executed. clean_nodes->next
> instead of clean_nodes is added in clean_list.
> So clean_nodes is discarded. It can not be used again.
> The workqueue is executed periodically. So more and more clean_nodes are
> discarded. Finally the clean_list is NULL.
> Then this problem will occur.
> 
> Fixes: 1bc144b62524 ("net, rds, Replace xlist in net/rds/xlist.h with llist")
> Signed-off-by: Zhu Yanjun <yanjun.zhu@...cle.com>

Applied and queued up for -stable.