Re: [PATCH 05/14] vrange: Add new vrange(2) system call

[H. Peter Anvin]

On 10/07/2013 05:13 PM, Minchan Kim wrote:
>>
>> The point is that MADV_DONTNEED is very similar in that sense,
>> especially if allowed to be lazy.  It makes a lot of sense to permit
>> both scrubbing modes orthogonally.
>>
>> The point you're making has to do with withdrawal of permission to flush
>> on demand, which is a result of having the lazy mode (ongoing
>> permission) and having to be able to withdraw such permission.
> 
> I'm sorry I could not understand what you wanted to say.
> Could you elaborate a bit?
> 

Basically, you need this because of MADV_LAZY or the equivalent, so it
would be applicable to a similar variant of madvise().

As such I would suggest that an madvise4() call would be appropriate.

	-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/