Re: [PATCH v6] add MAP_UNLOCKED mmap flag

From: Pekka Enberg
Date: Tue Jan 19 2010 - 02:37:25 EST

Hi Gleb,

On Tue, Jan 19, 2010 at 9:17 AM, Gleb Natapov <gleb@xxxxxxxxxx> wrote:
> The thread took a direction of bashing mlockall(). This is especially
> strange since proposed patch actually makes mlockall() more fine
> grained and thus more useful.

No, the thread took a direction of you not being able to properly
explain why we want MMAP_UNLOCKED in the kernel. It seems useless for
real-time and I've yet to figure out why you need _mlockall()_ if it's
a performance thing.

It would be probably useful if you could point us to the application
source code that actually wants this feature.

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