linux-kernel - Re: [PATCHv6 1/3] rdmacg: Added rdma cgroup controller

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Date:	Thu, 25 Feb 2016 19:56:01 +0530
From:	Parav Pandit <pandit.parav@...il.com>
To:	Haggai Eran <haggaie@...lanox.com>
Cc:	cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
	Tejun Heo <tj@...nel.org>, lizefan@...wei.com,
	Johannes Weiner <hannes@...xchg.org>,
	Doug Ledford <dledford@...hat.com>,
	Liran Liss <liranl@...lanox.com>,
	"Hefty, Sean" <sean.hefty@...el.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Jonathan Corbet <corbet@....net>, james.l.morris@...cle.com,
	serge@...lyn.com, Or Gerlitz <ogerlitz@...lanox.com>,
	Matan Barak <matanb@...lanox.com>, raindel@...lanox.com,
	akpm@...ux-foundation.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCHv6 1/3] rdmacg: Added rdma cgroup controller

> Can we call kfree() with spin_lock held? All these years I tend to
> avoid doing so.
Also it doesn't look correct to hold the lock while freeing the memory
which is totally unrelated to the lock.
With that I think current code appears ok with exception that its
duplicated at two place for code readability around lock.
What say?