From: Jakub Kicinski <kuba@kernel.org>
To: David Yang <mmyangfl@gmail.com>, Eric Dumazet <edumazet@google.com>
Cc: netdev@vger.kernel.org, Lino Sanfilippo <LinoSanfilippo@gmx.de>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Paolo Abeni <pabeni@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next] net: alacritech: Use u64_stats_t with u64_stats_sync properly
Date: Sun, 25 Jan 2026 15:23:24 -0800 [thread overview]
Message-ID: <20260125152324.1b7e5a9f@kernel.org> (raw)
In-Reply-To: <20260122185113.2760355-1-mmyangfl@gmail.com>
On Fri, 23 Jan 2026 02:51:07 +0800 David Yang wrote:
> On 64bit arches, struct u64_stats_sync is empty and provides no help
> against load/store tearing. Convert to u64_stats_t to ensure atomic
> operations.
Eric, could you comment if this matters? I expect David may send a
non-trivial number of these, I want to make sure we're making good
use of everyone's time here. 64b accesses are not torn on 64b arches,
and never used for control flow.
next prev parent reply other threads:[~2026-01-25 23:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 18:51 [PATCH net-next] net: alacritech: Use u64_stats_t with u64_stats_sync properly David Yang
2026-01-25 23:23 ` Jakub Kicinski [this message]
2026-01-26 10:11 ` Eric Dumazet
2026-01-26 11:35 ` David Laight
2026-01-27 3:00 ` patchwork-bot+netdevbpf
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