linux-kernel - Re: [PATCH 1/4] target: Obtain se_node_acl->acl_kref during get_initiator_node

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Date:	Fri, 8 Jan 2016 10:08:46 +0100
From:	Christoph Hellwig <hch@....de>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc:	Bart Van Assche <bart.vanassche@...disk.com>,
	Christoph Hellwig <hch@....de>,
	"Nicholas A. Bellinger" <nab@...erainc.com>,
	target-devel <target-devel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Sagi Grimberg <sagig@...lanox.com>,
	Hannes Reinecke <hare@...e.de>,
	Andy Grover <agrover@...hat.com>,
	Vasu Dev <vasu.dev@...ux.intel.com>, Vu Pham <vu@...lanox.com>,
	Himanshu Madhani <himanshu.madhani@...gic.com>,
	Giridhar Malavali <giridhar.malavali@...gic.com>
Subject: Re: [PATCH 1/4] target: Obtain se_node_acl->acl_kref during
	get_initiator_node_acl

On Fri, Jan 08, 2016 at 12:47:39AM -0800, Nicholas A. Bellinger wrote:
> Actually no, they do not.  That's the way that everything outside of
> tcm_fc + ib_srpt driver code has already worked for a long time.

Another reason to introduce a helper to enforce that ordering!

Everything but iscsi and qla2xxx is absolutely trivial to convert.
qla2xxx needs some work, but I think it's actually wrong currently
as it sets the s_id and loop_id unconditionally even if we're
reusing an existing node ACL.  iscsi is black magic as usual, so I'm
a little lost..