Re: [PATCH v45 7/7] wrap pchan->chan_in_use in READ/WRITE_ONCE
From: Sudeep Holla <sudeep.holla@kernel.org>
Date: 2026-07-22 08:50:56
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On Tue, Jul 21, 2026 at 01:52:56PM -0400, Adam Young wrote:
read/write happening from both userspace and Hard IRQ context chan_in_use is used a flag to sychronize access. Volitile semantics ensure we don't have a reordering that accidentally provide dual access.
With much better description [1] -- Regards, Sudeep [1] https://lore.kernel.org/all/20260717075649.467172-4-sudeep.holla@kernel.org (local)