From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f200.google.com (mail-pg1-f200.google.com [209.85.215.200]) (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 CB65D3AE1A6 for ; Thu, 6 Aug 2026 01:12:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785978771; cv=none; b=cUlbYkynoJ+WCWxC1pT4mKbcUYcsORtoKr+1GJAlabpAa9Cr50tE6Tp71wHOFtn8L/2M/wQhP6mxAup6ZCuLikzOXrbsT4LtZb48so5PqkVJhGVEzTfFshzZPoqJkq0BG47Hkg1XqHU4lUYGK1obGS9AQLaGzzwo2JVTz3FzRKQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785978771; c=relaxed/simple; bh=9Rbdn/nxBW/RacaOA/2S0AjWLk27bZqE+Y0j45NG2Dw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=EPsy/ue1MaFDBAQRRTz6H7XnC6EKLFtvDKbZYAgbuyGqwLzFLFE592IJqEEz5mThzdLRFQEtF3kp4fjwMqYhEStmvQMXlqlnVuktTvb+NR0ksG41wnIjL0nl7Fv2HoZUUzoESWifOl113SCKhasHaoPi/kQS3B4AT9W9awtoVxQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--jyescas.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=iUpWqc5u; arc=none smtp.client-ip=209.85.215.200 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--jyescas.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="iUpWqc5u" Received: by mail-pg1-f200.google.com with SMTP id 41be03b00d2f7-cab048cdb3eso2237176a12.0 for ; Wed, 05 Aug 2026 18:12:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1785978769; x=1786583569; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=sN8q6fisIIgd75G0Jqfk36UVrl5SrSLb7qi04o0MNbA=; b=iUpWqc5ugDDmZ7GngYz3tsYq22hL+OHY8Bo1m9LF+VZSRa9Il6bT5JIhQ5/bZRlVIl si7c38ebK3tDNhqN7hIhGv8oBCUR/y3QkkjWgpinqnn5i+efpwmznKdLltdrZ6sxMm8T bCrL+jLt4ymEyaAQ7TNqN0DOVkyWtz81C8kvMThQvPWB6nzfDkokE+vueuFZo/rUZYGg fVJZ7axgI+0g9oFDF4MHt0foKAZakN4APNvlVWGcJ1zYvdKJd/CVyI53GVytpgXpOAM8 sZIdgbaAHY27Dreco6ALaunNB1h6s9+mmJX4hcJx7MvcRC54uBaPI9IIm50qI8cslXPX 04og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785978769; x=1786583569; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=sN8q6fisIIgd75G0Jqfk36UVrl5SrSLb7qi04o0MNbA=; b=MTSDGK7Ev3KlXIa5/iIpJvVAwJbHXLT84LNu0n6bWLk9HzjfupdV0ByIlxXz4LvUgA Yvzy/c2WiYJtX++EDAzt8abWs6lVrj3Sdin20JJvj0dV5DqGGaoXvpWq69DW/m4hO77D lfuTjhSoBJAH+FKiKSp5OXSFPRCDl7+J1hyjkh8RxMSIsllZwA0ImS4hncTM9fvtPZ20 cvVmbo+noxIxW2GGUwDuN9FF9tU3fNILbuWnb6G963SdRltEeNargarK7vCgii7iGxBS hx+zA2j4rDeO/C/JLDRnyLnPDjeds5vWz1AhpttIpqEiKuAX0GYMETEUdH2zDi8XqdQS 0m0g== X-Forwarded-Encrypted: i=1; AHgh+RoostJ0TrqO4mB+/MclvcfUfQFK6dzfVBEvX3+YIYF+g9qQAAXJUhsMgMaS+JVCvlHvLMC5sK/0E8Fr1hs=@vger.kernel.org X-Gm-Message-State: AOJu0Yw+MLanqecuKkdZxc0DQYSdP8sfCb4ib12hqVcs8UTe7QJDrmSF BGeEFpZfV4hejpoShYTSrECiymtWQ6oasn9uLg0czysjbbimGF2vA6PiaoAVlnohMdrbQAkmRuP +VWcv4zoPrw== X-Received: from dlbep6.prod.google.com ([2002:a05:7022:1086:b0:13d:2ef5:67be]) (user=jyescas job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:a107:b0:3c3:8d86:9856 with SMTP id adf61e73a8af0-3cb85ded96dmr12416899637.14.1785978768797; Wed, 05 Aug 2026 18:12:48 -0700 (PDT) Date: Wed, 5 Aug 2026 18:09:12 -0700 In-Reply-To: <20260806011048.517229-1-jyescas@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260806011048.517229-1-jyescas@google.com> X-Mailer: git-send-email 2.55.0.629.g250fe7f194-goog Message-ID: <20260806011048.517229-12-jyescas@google.com> Subject: [RFC PATCH v2 11/16] mm: Sets the migrate type in gfp_t flags From: Juan Yescas To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , open list , "open list:MEMORY MANAGEMENT - CORE" Cc: jyescas@google.com, android-mm@google.com, ljs@kernel.org, fvdl@google.com, tkjos@google.com, minchan@google.com, dskiba@google.com, open list , "open list:MEMORY MANAGEMENT - CORE" Content-Type: text/plain; charset="UTF-8" This change sets the selected migrate type in gfp_t flags. Signed-off-by: Juan Yescas --- Changes in v2: - Make sure that ZONE_MOVABLE is only used by MIGRATE_MOVABLE requests. mm/page_alloc_hogger.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/mm/page_alloc_hogger.c b/mm/page_alloc_hogger.c index 0e9ac43e9868..4b72acfbc087 100644 --- a/mm/page_alloc_hogger.c +++ b/mm/page_alloc_hogger.c @@ -155,6 +155,24 @@ static inline void set_zone_to_alloc_from(int zone_idx, gfp_t *flags_ptr) } } +static inline void set_migrate_type_to_alloc_from(int migrate_type, gfp_t *flags_ptr) +{ + switch (migrate_type) { + case MIGRATE_UNMOVABLE: + *flags_ptr &= ~(__GFP_RECLAIMABLE | __GFP_MOVABLE); + break; + case MIGRATE_RECLAIMABLE: + *flags_ptr |= __GFP_RECLAIMABLE; + break; + case MIGRATE_HIGHATOMIC: + *flags_ptr |= __GFP_HIGH; + break; + case MIGRATE_MOVABLE: default: + *flags_ptr |= __GFP_MOVABLE; + break; + } +} + /** * req_page_alloc_write() - Allocates the pages on the requested node, zone, * order and migrate type. Once the allocation is performed, a file is created @@ -179,6 +197,7 @@ static ssize_t req_page_alloc_write(struct file *file, const char __user *ubuf, return -ENOMEM; set_zone_to_alloc_from(req->zone_idx, &flags); + set_migrate_type_to_alloc_from(req->migrate_type, &flags); kfree(allocs_ids); @@ -248,6 +267,9 @@ static inline int create_migrate_type_subdirs(struct dentry *orderdir, int nid, if (mtype == MIGRATE_ISOLATE) /* can't allocate from here */ continue; #endif + if (zone_idx == ZONE_MOVABLE && mtype != MIGRATE_MOVABLE) + continue; + snprintf(dirname, sizeof(dirname), "migrate-%s", migratetype_names[mtype]); migratedir = debugfs_create_dir(dirname, orderdir); -- 2.55.0.629.g250fe7f194-goog