Re: [0/1] [patch -mm] Add containerstats (v3)

From: Balbir Singh
Date: Fri Jun 08 2007 - 22:53:27 EST

Andrew Morton wrote:
> On Fri, 08 Jun 2007 23:43:46 +0530
> Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote:
>> This patch implements per container statistics infrastructure and re-uses
>> code from the taskstats interface.
> boggle.
> Symbol: CONTAINERS [=y]
> Paul, that's just bizarre. How come it was done this way?
> <struggles for a while, works out how to make CONFIG_CONTAINERS go away>
> OK, so taskstats.c still compiles, but I'm surprised. Shouldn't all that
> newly-added container stuff in taskstats.c be inside CONFIG_CONTAINERS?

Hi, Andrew,

I've added a definition of containerstats_build() even when CONFIG_CONTAINERS
is turned off, it simply returns -EINVAL. That's why taskstats.c compiles,
I could add an #ifdef and move the containers commands under CONFIG_CONTAINERS,
but I felt taskstats.c could be clean without any #ifdef's hanging around
(as much as possible).

In the next iteration, I could move out all the code to containerstats.c
and make containerstats.c depend on CONFIG_CONTAINERS

Warm Regards,
Balbir Singh
Linux Technology Center
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