linux-kernel - Re: [PATCH v5 19/21] asm-generic/atomic: Add try

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Message-ID: <20201012162526.GB3687261@gmail.com>
Date:   Mon, 12 Oct 2020 18:25:26 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>, Eddy_Wu@...ndmicro.com,
        x86@...nel.org, davem@...emloft.net, rostedt@...dmis.org,
        naveen.n.rao@...ux.ibm.com, anil.s.keshavamurthy@...el.com,
        linux-arch@...r.kernel.org, cameron@...dycamel.com,
        oleg@...hat.com, will@...nel.org, paulmck@...nel.org
Subject: Re: [PATCH v5 19/21] asm-generic/atomic: Add try_cmpxchg() fallbacks


* Masami Hiramatsu <mhiramat@...nel.org> wrote:

> From: Peter Zijlstra <peterz@...radead.org>
> 
> Only x86 provides try_cmpxchg() outside of the atomic_t interfaces,
> provide generic fallbacks to create this interface from the widely
> available cmpxchg() function.
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> Acked-by: Will Deacon <will@...nel.org>

Your SOB was missing here too.

Thanks,

	Ingo