From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-174.mta1.migadu.com (out-174.mta1.migadu.com [95.215.58.174]) (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 93C8810F9 for ; Mon, 1 Jul 2024 18:59:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719860385; cv=none; b=SMnn+EA19dpDvDQw7paO5qX//6NoFOhsyc+pykbWEpgC9mAHezU8v248BiSy9LSmsoDyJZzKiqqLfpnJa4SU0UWyreKSlGGA5XO+ae/m2gDlSU9R3Va6h01qlS+Hfl9ZCeZ4VfQlljWeCVGU4g1GkNYr6xRTe95Xo4pMIaNXd1M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719860385; c=relaxed/simple; bh=j2k61gAftMaGGWRrFIKCZxxflhlus2NrNZOvLCunGVc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=lLYXBPE41TMdgvsOrEgqrG4m8wHduYDAWBDXhkfZPKVcetIZJ8twALKdGB35YDmEPGdrqu4NM+DGak1pctz/+PYt7TivgQjjz8dPTWLTgyvEewEMwDOwck327SqGEdTLEuTV5q0kaIBCec5hJTV+lvO6tcwCfUGKL/0s2TNYTf4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=CzfXIpYZ; arc=none smtp.client-ip=95.215.58.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="CzfXIpYZ" X-Envelope-To: akpm@linux-foundation.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1719860380; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Npw8pvNw25Ks7XJp2oW+XVmk4yIUrowgtJPiLL8fvyw=; b=CzfXIpYZM5WBwSRno7JUDjNGOilWl6/wo+Q2Eqc6Bxp+svqQvsID/wz96aaQd34brepaBn OSm70+SCGmuZGWFn+igjN94c554AyDcOb8NCLatSMowjUdjhzH4/XhOWmqmPSX9YbIEca1 SC17iavLKg4a8X3ojigQKDxEuKHXW0I= X-Envelope-To: shakeel.butt@linux.dev X-Envelope-To: linux-mm@kvack.org X-Envelope-To: linux-kernel@vger.kernel.org X-Envelope-To: hannes@cmpxchg.org X-Envelope-To: mhocko@kernel.org X-Envelope-To: muchun.song@linux.dev X-Envelope-To: roman.gushchin@linux.dev X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Roman Gushchin To: Andrew Morton , Shakeel Butt Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Johannes Weiner , Michal Hocko , Muchun Song , Roman Gushchin Subject: [PATCH 1/2] mm: memcg: drop obsolete cache line padding in struct mem_cgroup Date: Mon, 1 Jul 2024 18:59:31 +0000 Message-ID: <20240701185932.704807-1-roman.gushchin@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT After the grouping of the cgroup v1-related fields and the corresponding reorganization of the struct mem_cgroup, the existing cache line padding doesn't make much sense anymore. Let's drop it for now and put back to new places, if necessary. Suggested-by: Shakeel Butt Signed-off-by: Roman Gushchin --- include/linux/memcontrol.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index d0c9365ff039..8b5b3ddeba05 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -220,8 +220,6 @@ struct mem_cgroup { /* handle for "memory.swap.events" */ struct cgroup_file swap_events_file; - CACHELINE_PADDING(_pad1_); - /* memory.stat */ struct memcg_vmstats *vmstats; @@ -305,8 +303,6 @@ struct mem_cgroup { bool tcpmem_active; int tcpmem_pressure; - CACHELINE_PADDING(_pad2_); - /* * set > 0 if pages under this cgroup are moving to other cgroup. */ -- 2.45.2.803.g4e1b14247a-goog