[Devel] Re: [RFC][PATCH] allow "unlimited" limit value.

[KAMEZAWA Hiroyuki]

On Tue, 25 Sep 2007 16:19:18 +0530
Balbir Singh <balbir at linux.vnet.ibm.com> wrote:

> Hi, Kamezawa-San,
> 
Hi,

> Your changes make sense, but not CLUI (Command Line Usage) sense.
> 1. The problem is that when we mix strings with numbers, tools that
>    parse/use get confused and complicated
yes, maybe.

> 2. ULONGLONG_MAX is a real limit, there is no such thing as unlimited.
>    If the user does ever go beyond ULONGLONG_MAX, we will limit him :-)
> 
Oh. res_counter.c  uses LONGLONG_MAX as default value.
need fix ? or intended ?
And okay there is no "unlimited" state.

> Having said that, I do wish to have a more intuitive interface for
> users. May be a perl/python script to hide away the numbers game
> from the users. What do you think?
> 
I agree with you that perl/python script can hide details. but they need knowledge
about the maximum value, which is given as default value.

In short, what I want is some value like RLIM_INFINITY in ulimit.


Because it seems that res_counter.c will be used for other resouce control purpose,
I thought some generic way (value) to know/specify "the maximum value" is helpful for
all resource controller interface.

If there is an concensus that treaing ULONGLONG_MAX as default, it's ok.

Thanks,
-Kame

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