Re: [PATCH v17 13/32] x86,fs/resctrl: Add an architectural hook called for each mount

[Borislav Petkov]

On Wed, Dec 17, 2025 at 09:21:00AM -0800, Tony Luck wrote:
> +void resctrl_arch_pre_mount(void)
> +{
> +	static atomic_t only_once = ATOMIC_INIT(0);
> +	int old = 0;
> +
> +	if (!atomic_try_cmpxchg(&only_once, &old, 1))
> +		return;
> +}

There's

#define DO_ONCE(func, ...)

Can't use that?

-- 
Regards/Gruss,
    Boris.

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