Re: [PATCH -mm] cgroup,cpuset: use alternative malloc to allocate large memory buf for tasks

[Paul Jackson <pj@sgi.com>]

Lai Jiangshan wrote:
> This new alternative allocation implementation can allocate memory
> up to 64M in 32bits system or 512M in 64bits system.

Just a random idea - it seems to me that this new allocation
implementation might be more generally useful than just for cgroups.

So, instead of having cgroup_huge_mem_alloc() and cgroup_huge_mem_free()
in kernel/cgroup.c, one might have say big_kmalloc() and big_kfree() in
some mm/*.c file.  I used "big" instead of "huge" or "compound" or
"large", as these other adjectives already have other meanings in these
allocator functions.

However ... I would suggest that you do not spend anytime implementing
the above idea unless either (1) it strikes you as absolutely brilliant,
or (2) Paul Menage endorses it.  Paul M has been paying closer attention
to this change than I have, so his recommendations are worth far more
than mine are here.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@sgi.com> 1.940.382.4214