netdev - [PATCH v1 0/3] cgroup/rstat: global cgroup_rstat

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]

Message-ID: <171328983017.3930751.9484082608778623495.stgit@firesoul>
Date: Tue, 16 Apr 2024 19:51:19 +0200
From: Jesper Dangaard Brouer <hawk@...nel.org>
To: tj@...nel.org, hannes@...xchg.org, lizefan.x@...edance.com,
 cgroups@...r.kernel.org, yosryahmed@...gle.com, longman@...hat.com
Cc: Jesper Dangaard Brouer <hawk@...nel.org>, netdev@...r.kernel.org,
 linux-mm@...ck.org, linux-kernel@...r.kernel.org, shakeel.butt@...ux.dev,
 kernel-team@...udflare.com, linux-kernel@...r.kernel.org,
 Arnaldo Carvalho de Melo <acme@...nel.org>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>, mhocko@...nel.org
Subject: [PATCH v1 0/3] cgroup/rstat: global cgroup_rstat_lock changes

This patchset is focused on the global cgroup_rstat_lock.

 Patch-1: Adds tracepoints to improve measuring lock behavior.
 Patch-2: Converts the global lock into a mutex.
 Patch-3: Limits userspace triggered pressure on the lock.

Background in discussion thread [1].
 [1] https://lore.kernel.org/all/ac4cf07f-52dd-454f-b897-2a4b3796a4d9@kernel.org/

---

Jesper Dangaard Brouer (3):
      cgroup/rstat: add cgroup_rstat_lock helpers and tracepoints
      cgroup/rstat: convert cgroup_rstat_lock back to mutex
      cgroup/rstat: introduce ratelimited rstat flushing


 block/blk-cgroup.c            |   2 +-
 include/linux/cgroup-defs.h   |   1 +
 include/linux/cgroup.h        |   5 +-
 include/trace/events/cgroup.h |  48 +++++++++++++++
 kernel/cgroup/rstat.c         | 111 ++++++++++++++++++++++++++++++----
 mm/memcontrol.c               |   1 +
 6 files changed, 153 insertions(+), 15 deletions(-)

--