From: Bart Van Assche <bart.vanassche@sandisk.com>
To: "Nicholas A. Bellinger" <nab@daterainc.com>,
target-devel <target-devel@vger.kernel.org>
Cc: linux-scsi <linux-scsi@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@lst.de>, Hannes Reinecke <hare@suse.de>,
Sagi Grimberg <sagig@mellanox.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Nicholas Bellinger <nab@linux-iscsi.org>
Subject: Re: [PATCH-v2 0/4] target: Eliminate se_port + t10_alua_tg_pt_gp_member
Date: Tue, 26 May 2015 14:44:14 +0200 [thread overview]
Message-ID: <55646A9E.5050401@sandisk.com> (raw)
In-Reply-To: <1432623445-25776-1-git-send-email-nab@daterainc.com>
On 05/26/15 08:57, Nicholas A. Bellinger wrote:
> - Add various rcu_dereference and lockless_dereference RCU notation
Hello Nic,
Feedback from an RCU expert (which I'm not) would be appreciated here.
But my understanding is that lockless_dereference(p) should be used for
a pointer p that has *not* been annotated as an RCU pointer. I think in
the for-next branch of the target repository that this macro is used to
access RCU-annotated pointers. Is that why sparse complains about how
lockless_dereference() is used in the target tree ?
Bart.
next prev parent reply other threads:[~2015-05-26 12:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-26 6:57 [PATCH-v2 0/4] target: Eliminate se_port + t10_alua_tg_pt_gp_member Nicholas A. Bellinger
2015-05-26 6:57 ` [PATCH-v2 1/4] target: Subsume se_port + t10_alua_tg_pt_gp_member into se_lun Nicholas A. Bellinger
2015-05-26 6:57 ` [PATCH-v2 2/4] target: Drop lun_sep_lock for se_lun->lun_se_dev RCU usage Nicholas A. Bellinger
2015-05-26 14:30 ` Bart Van Assche
2015-05-27 5:29 ` Nicholas A. Bellinger
2015-05-27 21:04 ` Paul E. McKenney
2015-05-28 6:02 ` Nicholas A. Bellinger
2015-05-28 15:57 ` Paul E. McKenney
2015-05-31 5:24 ` Nicholas A. Bellinger
2015-06-01 18:00 ` Paul E. McKenney
2015-05-26 6:57 ` [PATCH-v2 3/4] target: Drop se_lun->lun_active for existing percpu lun_ref Nicholas A. Bellinger
2015-05-26 6:57 ` [PATCH-v2 4/4] target: Drop unnecessary core_tpg_register TFO parameter Nicholas A. Bellinger
2015-05-26 9:43 ` [PATCH-v2 0/4] target: Eliminate se_port + t10_alua_tg_pt_gp_member Hannes Reinecke
2015-05-26 12:44 ` Bart Van Assche [this message]
2015-05-27 5:13 ` Nicholas A. Bellinger
2015-05-27 20:36 ` Paul E. McKenney
2015-05-28 5:41 ` Nicholas A. Bellinger
2015-05-28 15:48 ` Paul E. McKenney
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