On 6/26/19 6:25 PM, Andrew Morton wrote: > 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 :( > > We don't usually document debugging only files as they are subject to change with no stability guarantee. That is the point of marking it for debugging instead of a regular file that we need to support forever. Cheers, Longman
