Thread (10 messages) 10 messages, 2 authors, 2025-06-11
STALE411d

[PATCH net 0/3] Revert openvswitch per-CPU storage

From: Gal Pressman <hidden>
Date: 2025-06-10 06:26:48
Also in: linux-rt-devel

This patch series reverts a set of changes that consolidated per-CPU
storage structures in the openvswitch module.

The original changes were intended to improve performance and reduce
complexity by merging three separate per-CPU structures into one, but
they have changed openvswitch to use static percpu allocations, and
exhausted the reserved chunk on module init.
This results in allocation of struct ovs_pcpu_storage (6488 bytes)
failure on ARM.

The reverts are applied in reverse order of the original commits.

Gal Pressman (3):
  Revert "openvswitch: Move ovs_frag_data_storage into the struct
    ovs_pcpu_storage"
  Revert "openvswitch: Use nested-BH locking for ovs_pcpu_storage"
  Revert "openvswitch: Merge three per-CPU structures into one"

 net/openvswitch/actions.c  | 86 ++++++++++++++++++++++++++++++++------
 net/openvswitch/datapath.c | 33 ++++-----------
 net/openvswitch/datapath.h | 52 ++---------------------
 3 files changed, 84 insertions(+), 87 deletions(-)

-- 
2.40.1
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