From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f174.google.com (mail-io0-f174.google.com [209.85.223.174]) by kanga.kvack.org (Postfix) with ESMTP id C77116B0253 for ; Mon, 9 Nov 2015 13:17:01 -0500 (EST) Received: by ioc74 with SMTP id 74so128607190ioc.2 for ; Mon, 09 Nov 2015 10:17:01 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id k4si13515651ioe.26.2015.11.09.10.17.00 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 09 Nov 2015 10:17:01 -0800 (PST) Subject: [PATCH V3 0/2] SLUB bulk API interactions with kmem cgroup From: Jesper Dangaard Brouer Date: Mon, 09 Nov 2015 19:16:58 +0100 Message-ID: <20151109181604.8231.22983.stgit@firesoul> In-Reply-To: <20151105161048.GG29259@esperanza> References: <20151105161048.GG29259@esperanza> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: vdavydov@virtuozzo.com, Joonsoo Kim , Andrew Morton , Christoph Lameter , Jesper Dangaard Brouer Added correct support for kmem cgroup interaction with SLUB bulk API. I've compiled kernel with CONFIG_MEMCG_KMEM=y, and have tested the kernel with the setup provide by Vladimir Davydov. And with my network stack use-case patchset applied, to actually activate the API. Patch01: I've verified the loop in slab_post_alloc_hook() gets removed by the compiler (when no debug options defined). This was actually tricky due to kernel gcc compile options, and I wrote a small program to figure this out [1]. Patch02: The "try_crash" mode of the test module slab_bulk_test03 [2] have been modified as after this change we no longer handle error cases like passing of NULL pointers in the array to free, when CONFIG_MEMCG_KMEM is enabled. [1] https://github.com/netoptimizer/network-testing/blob/master/src/compiler_test01.c [2] https://github.com/netoptimizer/prototype-kernel/blob/master/kernel/mm/slab_bulk_test03.c --- Jesper Dangaard Brouer (2): slub: fix kmem cgroup bug in kmem_cache_alloc_bulk slub: add missing kmem cgroup support to kmem_cache_free_bulk mm/slub.c | 41 +++++++++++++++++++++++++++-------------- 1 file changed, 27 insertions(+), 14 deletions(-) -- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org