Re: [PATCH] memcg: Add kmem.slabinfo to v2 for debugging purpose

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On Wed, 26 Jun 2019 12:56:14 -0400 Waiman Long <longman@xxxxxxxxxx> wrote:

> With memory cgroup v1, there is a kmem.slabinfo file that can be
> used to view what slabs are allocated to the memory cgroup. There
> is currently no such equivalent in memory cgroup v2. This file can
> be useful for debugging purpose.
> 
> This patch adds an equivalent kmem.slabinfo to v2 with the caveat that
> this file will only show up as ".__DEBUG__.memory.kmem.slabinfo" when the
> "cgroup_debug" parameter is specified in the kernel boot command line.
> This is to avoid cluttering the cgroup v2 interface with files that
> are seldom used by end users.
>
> ...
>
> mm/memcontrol.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)

A change to the kernel's user interface triggers a change to the
kernel's user interface documentation.  This should be automatic by
now :(





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