netdev - [PATCH net-next v2 0/2] xsk: minor optimizations around locks

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Message-Id: <20251030000646.18859-1-kerneljasonxing@gmail.com>
Date: Thu, 30 Oct 2025 08:06:44 +0800
From: Jason Xing <kerneljasonxing@...il.com>
To: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	bjorn@...nel.org,
	magnus.karlsson@...el.com,
	maciej.fijalkowski@...el.com,
	jonathan.lemon@...il.com,
	sdf@...ichev.me,
	ast@...nel.org,
	daniel@...earbox.net,
	hawk@...nel.org,
	john.fastabend@...il.com,
	horms@...nel.org,
	andrew+netdev@...n.ch
Cc: bpf@...r.kernel.org,
	netdev@...r.kernel.org,
	Jason Xing <kernelxing@...cent.com>
Subject: [PATCH net-next v2 0/2] xsk: minor optimizations around locks

From: Jason Xing <kernelxing@...cent.com>

Two optimizations regarding xsk_tx_list_lock and cq_lock can yield a
performance increase because of avoiding disabling and enabling
interrupts frequently.

---
V2
Link: https://lore.kernel.org/all/20251025065310.5676-1-kerneljasonxing@gmail.com/
1. abandon applying lockless idea around cached_prod because the case as
Jakub pointed out can cause the pool messy.
2. add a new patch to handle xsk_tx_list_lock.

Jason Xing (2):
  xsk: do not enable/disable irq when grabbing/releasing
    xsk_tx_list_lock
  xsk: use a smaller new lock for shared pool case

 include/net/xsk_buff_pool.h | 13 +++++++++----
 net/xdp/xsk.c               | 15 ++++++---------
 net/xdp/xsk_buff_pool.c     | 15 ++++++---------
 3 files changed, 21 insertions(+), 22 deletions(-)

-- 
2.41.3