linux-kernel - [PATCH v3 0/2] Clean up the process of scanning the CPU for some functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 16 Dec 2022 14:24:04 +0800
From:   Hao Jia <jiahao.os@...edance.com>
To:     mingo@...hat.com, peterz@...radead.org, mingo@...nel.org,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, bristot@...hat.com, vschneid@...hat.com,
        mgorman@...hsingularity.net
Cc:     linux-kernel@...r.kernel.org, Hao Jia <jiahao.os@...edance.com>
Subject: [PATCH v3 0/2] Clean up the process of scanning the CPU for some functions

These two patches clean up the process of scanning the CPU.

Patch 1 stops checking for a new idle core in time
if an idle core has already been found.

Patch 2 tries to minimize false attempts by adjusting the order
of scanning CPU.

v3->v2:
    - Add "Acked-by: Mel Gorman <mgorman@...hsingularity.net>" and
      "Reviewed-by: Vincent Guittot <vincent.guittot@...aro.org>"
      for patch2

v1->v2:
    - Simplified patch1 code and add
      "Acked-by: Mel Gorman <mgorman@...hsingularity.net>" for patch1
    - Modify commit description to make it more clear

[v1] https://lore.kernel.org/all/20221021061558.34767-1-jiahao.os@bytedance.com
[v2] https://lore.kernel.org/all/20221026064300.78869-1-jiahao.os@bytedance.com

Hao Jia (2):
  sched/numa: Stop an exhastive search if an idle core is found
  sched/core: Adjusting the order of scanning CPU

 kernel/sched/core.c | 2 +-
 kernel/sched/fair.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

-- 
2.37.0