Re: [PATCH 1/4] mm/gup: Add FOLL_INTERRUPTIBLE

[Matthew Wilcox]

On Wed, Jun 22, 2022 at 05:36:53PM -0400, Peter Xu wrote:
> +/*
> + * GUP always responds to fatal signals.  When FOLL_INTERRUPTIBLE is
> + * specified, it'll also respond to generic signals.  The caller of GUP
> + * that has FOLL_INTERRUPTIBLE should take care of the GUP interruption.
> + */
> +static bool gup_signal_pending(unsigned int flags)
> +{
> +	if (fatal_signal_pending(current))
> +		return true;
> +
> +	if (!(flags & FOLL_INTERRUPTIBLE))
> +		return false;
> +
> +	return signal_pending(current);
> +}

This should resemble signal_pending_state() more closely, if indeed not
be a wrapper of signal_pending_state().