Re: [PATCH 4.19 1/1] memcg: enable accounting of ipc resources

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Fri, Aug 30, 2024 at 10:20:28AM +0200, hsimeliere.opensource@witekio.com wrote:
> From: Vasily Averin <vvs@virtuozzo.com>
> 
> commit 18319498fdd4cdf8c1c2c48cd432863b1f915d6f upstream.
> 
> When user creates IPC objects it forces kernel to allocate memory for
> these long-living objects.
> 
> It makes sense to account them to restrict the host's memory consumption
> from inside the memcg-limited container.
> 
> This patch enables accounting for IPC shared memory segments, messages
> semaphores and semaphore's undo lists.
> 
> Link: https://lkml.kernel.org/r/d6507b06-4df6-78f8-6c54-3ae86e3b5339@virtuozzo.com
> Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
> Reviewed-by: Shakeel Butt <shakeelb@google.com>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Cc: Alexey Dobriyan <adobriyan@gmail.com>
> Cc: Andrei Vagin <avagin@gmail.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: Borislav Petkov <bp@suse.de>
> Cc: Christian Brauner <christian.brauner@ubuntu.com>
> Cc: Dmitry Safonov <0x7f454c46@gmail.com>
> Cc: "Eric W. Biederman" <ebiederm@xmission.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "J. Bruce Fields" <bfields@fieldses.org>
> Cc: Jeff Layton <jlayton@kernel.org>
> Cc: Jens Axboe <axboe@kernel.dk>
> Cc: Jiri Slaby <jirislaby@kernel.org>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
> Cc: Michal Hocko <mhocko@kernel.org>
> Cc: Oleg Nesterov <oleg@redhat.com>
> Cc: Roman Gushchin <guro@fb.com>
> Cc: Serge Hallyn <serge@hallyn.com>
> Cc: Tejun Heo <tj@kernel.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
> Cc: Yutian Yang <nglaive@gmail.com>
> Cc: Zefan Li <lizefan.x@bytedance.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
> Signed-off-by: Hugo SIMELIERE <hsimeliere.opensource@witekio.com>
> ---
>  ipc/msg.c |  2 +-
>  ipc/sem.c | 10 ++++++----
>  ipc/shm.c |  2 +-
>  3 files changed, 8 insertions(+), 6 deletions(-)
> 

Now queued up, thanks.

greg k-h