netdev - [net-next v6 PATCH 0/2] page_pool: NUMA node handling fixes

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: <157746672570.257308.7385062978550192444.stgit@firesoul>
Date:   Fri, 27 Dec 2019 18:13:13 +0100
From:   Jesper Dangaard Brouer <brouer@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Jesper Dangaard Brouer <brouer@...hat.com>, lirongqing@...du.com,
        linyunsheng@...wei.com,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Saeed Mahameed <saeedm@...lanox.com>, mhocko@...nel.org,
        peterz@...radead.org, linux-kernel@...r.kernel.org
Subject: [net-next v6 PATCH 0/2] page_pool: NUMA node handling fixes

The recently added NUMA changes (merged for v5.5) to page_pool, it both
contains a bug in handling NUMA_NO_NODE condition, and added code to
the fast-path.

This patchset fixes the bug and moves code out of fast-path. The first
patch contains a fix that should be considered for 5.5. The second
patch reduce code size and overhead in case CONFIG_NUMA is disabled.

Currently the NUMA_NO_NODE setting bug only affects driver 'ti_cpsw'
(drivers/net/ethernet/ti/), but after this patchset, we plan to move
other drivers (netsec and mvneta) to use NUMA_NO_NODE setting.

---

Jesper Dangaard Brouer (2):
      page_pool: handle page recycle for NUMA_NO_NODE condition
      page_pool: help compiler remove code in case CONFIG_NUMA=n

 net/core/page_pool.c |   89 +++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 70 insertions(+), 19 deletions(-)

--