[ltt-dev] LTTng kernel integration roadmap, update

[Christoph Hellwig]

On Mon, Nov 24, 2008 at 06:28:42AM -0500, Mathieu Desnoyers wrote:
> - trimmed-down lttv for the kernel tree
>   Need to look at
>   git://git.kernel.org/pub/scm/linux/kernel/git/sam/test.git#master
>   tests/ directory, which permits building userspace tools with the
>   Linux kernel. I recently got the idea of populating debugfs with
>   userspace tools that would sits in kernel module data. How (in)sane
>   does this idea look ? That would seems like a rather good solution to
>   ship the userspace tool with the kernel.

Completely insane I'd say.  Debugfs is per defintion populated from
kernelspace, and adding another mixed user/kernel populated fs like
devfs is a rather bad idea.  I don't quite see any point in shipping
lttv with the kernel tree either, it shouldn't really need knowledge of
the kernel version.