From nobody Mon Jun 8 06:38:24 2026 Received: from mail-ej1-f73.google.com (mail-ej1-f73.google.com [209.85.218.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C2FF0361667 for ; Mon, 1 Jun 2026 11:40:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780314014; cv=none; b=oVEIEH2Iv8Cy98+zhaUEFcF+U0jD2QgLwaAwRN3U1yostwvTynZWYlAH5QadUh7QJqFgBIuaUAwd9KxQ5WH0l4NhJF7UpoSvErIeTWsvQdbqGngfMSMgKhRox1A1xhdC+ML3p9x5A9E97IXcPLNQtiml2b0c9u/lALH58c0gJpQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780314014; c=relaxed/simple; bh=TB01criIoZqWI82zbAj7f/HxJBglP35aDtifjOJAamk=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=rU/l1//1X181e7lvIsD22rQGkQr5Gz5OTPaFZ4ChgvJLEZaXLbOfSXBks1YFY56Q5ZTEWnc3IW8lpWBNYZU6xaIG9JBdPxu559w6egvBAXx72MXpGV9gs5Vg97ToFz2++WenDXwhYM/FfmIelnEDNIFeDlvP97uQKeCw15H4W+o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=sVZeuxTT; arc=none smtp.client-ip=209.85.218.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--jackmanb.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="sVZeuxTT" Received: by mail-ej1-f73.google.com with SMTP id a640c23a62f3a-beeb1713d20so3251266b.1 for ; Mon, 01 Jun 2026 04:40:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780314011; x=1780918811; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=6Wl48l2DfPZ0MppiMhPgvatUF8ANRh8YkT+xizR8GSs=; b=sVZeuxTTpkZhXi0H50WzgRtkU1pdSF6vv1LIz0wCQGSsvGIix+IDlyYcTu7ClUuc6/ oom/rMCIiZ0sBCbNPUTE8kThS9NVVQJUofGMrhmz6ZJq8ozhsA8/vwk68vCmCiPyW8Kq pMuptUsESJ7gI1sRqwPTtBYjcpuI5q78NmOh/oL0+nIHQAYhwhMIzkVgwi3Pi/lYFh0I BYfZHuA9w/5lhPHN2EWnUCX/cLAyHViRhYLuhX+FeKdyxnxssg7suJRZjeef/nqPPYot bzrDzU98tLB8puwfNzuRpgUhGTd+SIE5G0pt/qlOTZjXE3Wd+bv/qyAKtJmAKOR0HfSY b9/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780314011; x=1780918811; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=6Wl48l2DfPZ0MppiMhPgvatUF8ANRh8YkT+xizR8GSs=; b=Hy27mf3PF/jJ/Yc/zcaVxGoxWlQmUsksyEMCe7jemhLzBJIoDNb4INgks93NmVFG/3 wVrC+NuZyJtdPMIM3noMZvIiiYwt8H8e14vfMh2nVY6Ev+cQNaYrvNgPyVDAmsUlo3QQ E8pRNoFzcJwzcKIct7NOoyX5y1+skBkn3OeOgrxCfVnvYv0i1SyxWDdZZpbcBY9aaZBZ NLGqbXv5CSb/KtkUs8pHROTBzI5z3bJSkW5OdNYpzE/iQfRs7STaVpKbugxnyOBApmPc wkHThnvt1gbkWLoJYQKZ1G5uQq/6gsLa0iyR5Tzg03DD4SmYG0bAQkXBwrJzjmcx/IfC U+7g== X-Forwarded-Encrypted: i=1; AFNElJ8/KPrObf0tTjP+BAwFmL3wv07v7WtyIvwzoTopzOiev4yzdEXLT3D5WHRukFidpvKBfiecFWHaVbOrH+g=@vger.kernel.org X-Gm-Message-State: AOJu0YxT87g3j0kjHpEqtxJQONtWvo5KvZke7YWYpsm9sZkdNBJrbiH1 ZzYkmeCJyKo8Qb7DjRnWk6RlvrnfZmAOYLDIZdi5hXZH4RhZa2Dve4zzkVify+Og/Mjmw6lKKGh vZvbBPl6FujvoDA== X-Received: from ejbrh6.prod.google.com ([2002:a17:907:20e6:b0:bec:2b20:60cf]) (user=jackmanb job=prod-delivery.src-stubby-dispatcher) by 2002:a17:906:8a6e:b0:bec:c237:4ec1 with SMTP id a640c23a62f3a-becc237541dmr245766966b.13.1780314011057; Mon, 01 Jun 2026 04:40:11 -0700 (PDT) Date: Mon, 01 Jun 2026 11:40:09 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAJhvHWoC/x3MQQqAIBBA0avIrBMmKamuEiFhU81CDZWIorsnL d/i/wcSRaYEg3gg0smJgy+oKwF2n/1GkpdiUKg0aqzlHTyZlOdsOJOTNjhHPsumXbTGrleNQij xEWnl6x+P0/t+pFQ+8GgAAAA= X-Change-Id: 20260601-zone_stat_item-comment-45d660892420 X-Mailer: b4 0.14.3 Message-ID: <20260601-zone_stat_item-comment-v1-1-f452dd91d5eb@google.com> Subject: [PATCH] mm: delete stale comment about cachelines From: Brendan Jackman To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kairui Song , Qi Zheng , Shakeel Butt , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Christoph Lameter , Johannes Weiner , Brendan Jackman Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable These comments have been wrong since commit a211c6550efc ("mm: page_alloc: defrag_mode kswapd/kcompactd watermarks") added NR_FREE_PAGES_BLOCKS. Since nobody has complained about it in the last year, it seems unlikely these comments were particularly useful anyway, so delete them. Signed-off-by: Brendan Jackman Acked-by: David Hildenbrand (Arm) Acked-by: Vlastimil Babka (SUSE) Reviewed-by: Lorenzo Stoakes --- include/linux/mmzone.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 1331a7b93f33c..e308f5ac7950a 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -214,7 +214,6 @@ enum numa_stat_item { #endif =20 enum zone_stat_item { - /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, NR_FREE_PAGES_BLOCKS, NR_ZONE_LRU_BASE, /* Used only for compaction and reclaim retry */ @@ -225,7 +224,6 @@ enum zone_stat_item { NR_ZONE_UNEVICTABLE, NR_ZONE_WRITE_PENDING, /* Count of dirty, writeback and unstable pages */ NR_MLOCK, /* mlock()ed pages found and moved off LRU */ - /* Second 128 byte cacheline */ #if IS_ENABLED(CONFIG_ZSMALLOC) NR_ZSPAGES, /* allocated in zsmalloc */ #endif --- base-commit: 4aedd91eef75addec6eb2702aa0d94625d01458d change-id: 20260601-zone_stat_item-comment-45d660892420 Best regards, --=20 Brendan Jackman