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-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240226172233.161c6e7e@kernel.org>
Date: Mon, 26 Feb 2024 17:22:33 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Jesper Dangaard Brouer <hawk@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Thomas Gleixner <tglx@...utronix.de>,
 Wander Lairson Costa <wander@...hat.com>, Yan Zhai <yan@...udflare.com>
Subject: Re: [PATCH v2 net-next 3/3] net: Use backlog-NAPI to clean up the
 defer_list.

On Mon, 26 Feb 2024 12:59:22 +0100 Sebastian Andrzej Siewior wrote:
> They protect the list in input_pkt_queue and the NAPI state. It is just
> in the !RPS case it is always CPU-local and the lock is avoided (while
> interrupts are still disabled/ enabled).
> 
> What about
> 	input_queue_lock_irq_save()
> 	input_queue_lock_irq_disable()
> 	input_queue_lock_irq_restore()
> 	input_queue_lock_irq_enable()

SGTM. Maybe I'd risk calling it backlog_lock_* but not sure others
would agree.

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ