Re: [RFC PATCHv2 1/2] Add mm flag to control THP

[Oleg Nesterov]

On 01/16, Alex Thorlton wrote:
>
> +	case PR_GET_THP_DISABLE:
> +		error = put_user(test_bit(MMF_THP_DISABLE,
> +				 &me->mm->flags),
> +				 (int __user *) arg2);
> +		break;

Do we really want put_user?

	error = test_bit(MMF_THP_DISABLE);

can work too and looks simpler (and to me simpler to use in userspace).

PR_GET_DUMPABLE works this way.

Oleg.

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