lkml.org 
[lkml]   [2015]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH-v2 0/4] target: Eliminate se_port + t10_alua_tg_pt_gp_member
On 05/26/2015 08:57 AM, Nicholas A. Bellinger wrote:
> From: Nicholas Bellinger <nab@linux-iscsi.org>
>
> Hi all,
>
> Here is v2 series with HCH's recent changes to go ahead and drop
> all se_port + t10_alua_tg_pt_gp_member usage within target-core in
> favor of direct se_lun pointer dereference.
>
> This includes the original patch + minor fixes, along with two other
> improvements for killing off se_lun->lun_sep_lock via RCU pointer
> access, and converting the remaining se_lun->lun_active busy-wait
> special cases to existing percpu se_lun->lun_ref access.
>
> Also included in the series is a recently discussed change to go
> ahead and drop an unnecessary core_tpg_register() parameter, and
> all associated target_core_fabric_ops forward declartions within
> fabric driver code.
>
> The changes since -v1 include:
>
> - Move ->lun_se_dev assignments under se_device->se_port_lock
> - All proper call_rcu() in backend drivers to allow for read-side
> critical se_device RCU to complete
> - Add se_device->hba_index to clean up RCU dereferences within
> scsi_port_show_attr_inst() + scsi_tgt_port_show_attr_inst()
> - Add various rcu_dereference and lockless_dereference RCU notation
>
> Please review.
>
> --nab
>
For the whole series:

Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)


\
 
 \ /
  Last update: 2015-05-26 15:21    [W:0.139 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site