Re: [PATCH v7 02/16] blkcg: Added a app identifier support for blkcg

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On 1/6/21 11:00 PM, Muneendra wrote:
This Patch added a unique application identifier i.e
fc_app_id  member in blkcg which allows identification of traffic
sources at an individual cgroup based Applications
(ex:virtual machine (VM))level in both host and
fabric infrastructure.

Added a new function blkcg_get_fc_appid to
grab the app identifier associated with a bio.

Added a new function blkcg_set_fc_appid to
set the app identifier in a blkcgrp associated with cgroup id

Added a new config BLK_CGROUP_FC_APPID and moved the changes
under this config

Signed-off-by: Muneendra <muneendra.kumar@xxxxxxxxxxxx>

---
v7:
Modified the Kconfig file

v6:
Modified the Kconfig file as per standard specified
in Documentation/process/coding-style.rst

v5:
Renamed the arguments appropriatley
Renamed APPID_LEN  to FC_APPID_LEN
Moved the input validation at the begining of the function
Modified the comments

v4:
No change

v3:
Renamed the functions and app_id to more specific

Addressed the reference leaks in blkcg_set_app_identifier

Added a new config BLK_CGROUP_FC_APPID and moved the changes
under this config

Added blkcg_get_fc_appid,blkcg_set_fc_appid as inline functions

v2:
renamed app_identifier to app_id
removed the  sysfs interface blkio.app_identifie under
---
  block/Kconfig              |  9 ++++++
  include/linux/blk-cgroup.h | 56 ++++++++++++++++++++++++++++++++++++++
  2 files changed, 65 insertions(+)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
hare@xxxxxxx                              +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer



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