From: sashiko-bot@kernel.org
To: "Jinjie Ruan" <ruanjinjie@huawei.com>
Cc: "Oleksij Rempel" <o.rempel@pengutronix.de>,
linux-can@vger.kernel.org, "Vincent Mailhol" <mailhol@kernel.org>,
tytso@mit.edu, "Marc Kleine-Budde" <mkl@pengutronix.de>,
"Oliver Hartkopp" <socketcan@hartkopp.net>,
linux-ext4@vger.kernel.org
Subject: Re: [PATCH 02/11] lib/vsprintf: Use acquire/release for ptr_key publication
Date: Wed, 26 Aug 2026 09:54:20 +0000 [thread overview]
Message-ID: <20260826095420.864461F00A3A@smtp.kernel.org> (raw)
In-Reply-To: <20260825095422.3166067-3-ruanjinjie@huawei.com>
> Replace the smp_wmb() + WRITE_ONCE() and READ_ONCE() + smp_rmb() barrier
> pair with smp_store_release()/smp_load_acquire() on filled_random_ptr_key.
>
> This expresses the publish/subscribe pattern more clearly and allows
> architectures with native acquire/release instructions (e.g. arm64's
> STLR/LDAR) to avoid the cost of full one-way barriers (DMB ISHST/ISHLD).
>
> No functional change intended.
>
> Assisted-by: DeepSeek:DeepSeek-V3
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260825095422.3166067-1-ruanjinjie@huawei.com?part=2
next prev parent reply other threads:[~2026-08-26 9:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-25 9:54 [PATCH 00/11] Convert barrier pairs to acquire/release for better performance Jinjie Ruan
2026-08-25 9:54 ` [PATCH 01/11] user_namespace: Use acquire/release for nr_extents synchronization Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 02/11] lib/vsprintf: Use acquire/release for ptr_key publication Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot [this message]
2026-08-25 9:54 ` [PATCH 03/11] fs: aio: Use acquire/release for ring->tail publication Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 04/11] fs: Use acquire/release for fdtable resize synchronization Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 05/11] pidfs: Use test_bit_acquire() for attr flag tests Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 06/11] super: Use acquire for SB_BORN check in super_cache_count() Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 07/11] ext4: Convert group-count barrier protocol to acquire/release Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 08/11] soreuseport: publish num_socks with acquire/release Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 09/11] net: sched: act_gact: use acquire/release for tcfg_ptype Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 10/11] 8021q: publish vlan_devices_arrays entries with acquire/release Jinjie Ruan
2026-08-26 9:54 ` sashiko-bot
2026-08-25 9:54 ` [PATCH 11/11] can: isotp: publish tx.state with smp_store_release() Jinjie Ruan
2026-08-25 11:46 ` Oliver Hartkopp
2026-08-26 3:33 ` Jinjie Ruan
2026-08-26 8:04 ` Oliver Hartkopp
2026-08-26 9:54 ` sashiko-bot
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