From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD6CD10A2D for ; Thu, 22 Feb 2024 00:01:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708560067; cv=none; b=p7gL1v3DNQl+5ZKmRB0/7XRtot1vq/Qqdpa22yePKyFqqNW2LrX95yYjgL/EDalhTXSfzhS796LKEji5cQ0zAQKQL3EMZ1YcXZfRyDkSRUmpsrQhzAvIX07Jxx1kJURQly7PIzkj5rl0FqRgv+Taqjn4tdrIMVCZmBUJAfKkF6s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708560067; c=relaxed/simple; bh=aK2mcPWWFvjDO10TSjD4gLBYW8WHwjPpEnIOIJOw+Qg=; h=Date:To:From:Subject:Message-Id; b=HeYcLT0HN0kMh2mBU8fGpqZCOpLj0wn0kH47iNkQKNj6CM3ySLqCSV38mctBv0RD6MSVDwOSCUbLiikXh4/F299WCop6kOSO/GGCdbB8lD0Fo9xivZ2TQB8ROhNKXb/RYyfPJQrruLLvWx36eLFfBgM4A8Qepby6lGaYyS71vBM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=MVEgBhPH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="MVEgBhPH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 494E1C43390; Thu, 22 Feb 2024 00:01:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1708560067; bh=aK2mcPWWFvjDO10TSjD4gLBYW8WHwjPpEnIOIJOw+Qg=; h=Date:To:From:Subject:From; b=MVEgBhPHjEFtZzIMMNE1euGFNhtfg32dVeoVC3me51RSZ9O1GeudnTl9fIrhpv2cm sfilYjf0lp96yDbxyse1TDqJNE0jJUrPxPb0lSYttBxYXMNo/arOlLqcV+ri1WTKSj P91Dxivd3TcoI5/MoQSopqZaKGMQ5vUeXDGmnS5E= Date: Wed, 21 Feb 2024 16:01:06 -0800 To: mm-commits@vger.kernel.org,shakeelb@google.com,roman.gushchin@linux.dev,mhocko@kernel.org,hannes@cmpxchg.org,haifeng.xu@shopee.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-list_lru-disable-memcg_aware-when-cgroupmemory-is-set-to-nokmem.patch removed from -mm tree Message-Id: <20240222000107.494E1C43390@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm: list_lru: disable memcg_aware when cgroup.memory is set to "nokmem" has been removed from the -mm tree. Its filename was mm-list_lru-disable-memcg_aware-when-cgroupmemory-is-set-to-nokmem.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Haifeng Xu Subject: mm: list_lru: disable memcg_aware when cgroup.memory is set to "nokmem" Date: Thu, 28 Dec 2023 06:27:14 +0000 Actually, when using a boot time kernel option "cgroup.memory=nokmem", all lru items are inserted to list_lru_node. But for those users who invoke list_lru_init_memcg() to initialize list_lru, list_lru_memcg_aware() returns true. And this brings unneeded operations related to memcg. To make things more convenient, let's disable memcg_aware when cgroup.memory is set to "nokmem". Link: https://lkml.kernel.org/r/20231228062715.338672-1-haifeng.xu@shopee.com Signed-off-by: Haifeng Xu Acked-by: Roman Gushchin Cc: Johannes Weiner Cc: Michal Hocko Cc: Shakeel Butt Signed-off-by: Andrew Morton --- mm/list_lru.c | 3 +++ 1 file changed, 3 insertions(+) --- a/mm/list_lru.c~mm-list_lru-disable-memcg_aware-when-cgroupmemory-is-set-to-nokmem +++ a/mm/list_lru.c @@ -567,6 +567,9 @@ int __list_lru_init(struct list_lru *lru lru->shrinker_id = shrinker->id; else lru->shrinker_id = -1; + + if (mem_cgroup_kmem_disabled()) + memcg_aware = false; #endif lru->node = kcalloc(nr_node_ids, sizeof(*lru->node), GFP_KERNEL); _ Patches currently in -mm which might be from haifeng.xu@shopee.com are