From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E213BC64E7C for ; Wed, 2 Dec 2020 05:23:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 72E4C2065C for ; Wed, 2 Dec 2020 05:23:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 72E4C2065C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=soleen.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 55EC18D000A; Wed, 2 Dec 2020 00:23:46 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4E9508D0002; Wed, 2 Dec 2020 00:23:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 312828D000A; Wed, 2 Dec 2020 00:23:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0173.hostedemail.com [216.40.44.173]) by kanga.kvack.org (Postfix) with ESMTP id 1CF318D0002 for ; Wed, 2 Dec 2020 00:23:46 -0500 (EST) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id E236D3636 for ; Wed, 2 Dec 2020 05:23:45 +0000 (UTC) X-FDA: 77547200010.21.mine09_31136cc273b0 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin21.hostedemail.com (Postfix) with ESMTP id C4258180442C3 for ; Wed, 2 Dec 2020 05:23:45 +0000 (UTC) X-HE-Tag: mine09_31136cc273b0 X-Filterd-Recvd-Size: 6763 Received: from mail-il1-f195.google.com (mail-il1-f195.google.com [209.85.166.195]) by imf32.hostedemail.com (Postfix) with ESMTP for ; Wed, 2 Dec 2020 05:23:45 +0000 (UTC) Received: by mail-il1-f195.google.com with SMTP id x15so459299ilq.1 for ; Tue, 01 Dec 2020 21:23:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=pyAQwS4Co7I2R95ag+5lXrPe/9p6neLUf3n9lgyrkG0=; b=kRknJsSQGtDUohS7hN3L95LW6SIb5DalNHHH0d5LSFjWcttO34k/TSUtL0SfKRRaIL +adzzZ0P//8mfJ5hh7Lo8vss3XDPG9mh0MbXEluUFMMezkGfg00sb5ZqM4B+BzBbTKfT LHeGZLAlYWA+YO9yBEIdiIEeaYa9QIp9AjT+NSTBaM8V+GpFhuQMghQ2k7mmVhTS4JxH wKiDJYMXgzDASGPKAOmxSq/zDsxk6rhnu5b9wFZn9ACVOqWTj0agFa72tzERrDhIl/Qc 7LwsnYuOmJ5miF6Z48UyA9E55Ftc4dn73D1FotjYKNc2gLS0jdNS0EUHX91BN9CbKE8p Gcig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=pyAQwS4Co7I2R95ag+5lXrPe/9p6neLUf3n9lgyrkG0=; b=TWKm4ApzaEAc9Wwem62oJqdOToy5xMJmRJRfRP+WGmdpAuaRsuLRZUbYEmoRL+IDLz 8fSHAAiY4tKuo33x61fq8DGeCau7PV1ntCF1RB49o5L77mm/UzgPD5ktOcUdspfVlgSe 3nP3LGs4tMFPd+o95XACf9iVu0pJoQ2BUNH2QfJDKm2aKTBuiNU4EEsmCqdgjBj0JKDj hhbcRTPhhaickaBxo61wH7AeTgS8s1/W94bX+CantARl+5y6uOWqw5yPcxYeXro0dKTD Tsx3eOtjDBNi49Fz80FP2jDmuqltxE4eDktVNnsackb24ZeZOElSK+GEzvvMnB8Ayrbq 01Zw== X-Gm-Message-State: AOAM531/zcXePVjWj3Jsa77Au7f3tePTkn7/XpiQ0ESmvWxP+YD71+hr I7c8j4vfNyEun7twpvnpXcpt5A== X-Google-Smtp-Source: ABdhPJz0k5IzB0S69VOwNzsfUHyaCVWqenfV/i20fxRSf01ht5jDP/pDg/VPs9BmYrKW9bm90bbjOQ== X-Received: by 2002:a92:850f:: with SMTP id f15mr991400ilh.286.1606886624807; Tue, 01 Dec 2020 21:23:44 -0800 (PST) Received: from localhost.localdomain (c-73-69-118-222.hsd1.nh.comcast.net. [73.69.118.222]) by smtp.gmail.com with ESMTPSA id m19sm295938ila.81.2020.12.01.21.23.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Dec 2020 21:23:44 -0800 (PST) From: Pavel Tatashin To: pasha.tatashin@soleen.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, vbabka@suse.cz, mhocko@suse.com, david@redhat.com, osalvador@suse.de, dan.j.williams@intel.com, sashal@kernel.org, tyhicks@linux.microsoft.com, iamjoonsoo.kim@lge.com, mike.kravetz@oracle.com, rostedt@goodmis.org, mingo@redhat.com, jgg@ziepe.ca, peterz@infradead.org, mgorman@suse.de, willy@infradead.org, rientjes@google.com, jhubbard@nvidia.com Subject: [PATCH 5/6] mm: honor PF_MEMALLOC_NOMOVABLE for all allocations Date: Wed, 2 Dec 2020 00:23:29 -0500 Message-Id: <20201202052330.474592-6-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201202052330.474592-1-pasha.tatashin@soleen.com> References: <20201202052330.474592-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: PF_MEMALLOC_NOMOVABLE is only honored for CMA allocations, extend this flag to work for any allocations by removing __GFP_MOVABLE from gfp_mask when this flag is passed in the current context, thus prohibiting allocations from ZONE_MOVABLE. Signed-off-by: Pavel Tatashin --- mm/hugetlb.c | 2 +- mm/page_alloc.c | 26 ++++++++++++++++---------- 2 files changed, 17 insertions(+), 11 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 02213c74ed6b..00e786201d8b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1036,7 +1036,7 @@ static struct page *dequeue_huge_page_node_exact(st= ruct hstate *h, int nid) bool nomovable =3D !!(current->flags & PF_MEMALLOC_NOMOVABLE); =20 list_for_each_entry(page, &h->hugepage_freelists[nid], lru) { - if (nomovable && is_migrate_cma_page(page)) + if (nomovable && is_migrate_movable(get_pageblock_migratetype(page))) continue; =20 if (PageHWPoison(page)) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 611799c72da5..7a6d86d0bc5f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3766,20 +3766,25 @@ alloc_flags_nofragment(struct zone *zone, gfp_t g= fp_mask) return alloc_flags; } =20 -static inline unsigned int current_alloc_flags(gfp_t gfp_mask, - unsigned int alloc_flags) +static inline unsigned int cma_alloc_flags(gfp_t gfp_mask, + unsigned int alloc_flags) { #ifdef CONFIG_CMA - unsigned int pflags =3D current->flags; - - if (!(pflags & PF_MEMALLOC_NOMOVABLE) && - gfp_migratetype(gfp_mask) =3D=3D MIGRATE_MOVABLE) + if (gfp_migratetype(gfp_mask) =3D=3D MIGRATE_MOVABLE) alloc_flags |=3D ALLOC_CMA; - #endif return alloc_flags; } =20 +static inline gfp_t current_gfp_checkmovable(gfp_t gfp_mask) +{ + unsigned int pflags =3D current->flags; + + if ((pflags & PF_MEMALLOC_NOMOVABLE)) + return gfp_mask & ~__GFP_MOVABLE; + return gfp_mask; +} + /* * get_page_from_freelist goes through the zonelist trying to allocate * a page. @@ -4423,7 +4428,7 @@ gfp_to_alloc_flags(gfp_t gfp_mask) } else if (unlikely(rt_task(current)) && !in_interrupt()) alloc_flags |=3D ALLOC_HARDER; =20 - alloc_flags =3D current_alloc_flags(gfp_mask, alloc_flags); + alloc_flags =3D cma_alloc_flags(gfp_mask, alloc_flags); =20 return alloc_flags; } @@ -4725,7 +4730,7 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int= order, =20 reserve_flags =3D __gfp_pfmemalloc_flags(gfp_mask); if (reserve_flags) - alloc_flags =3D current_alloc_flags(gfp_mask, reserve_flags); + alloc_flags =3D cma_alloc_flags(gfp_mask, reserve_flags); =20 /* * Reset the nodemask and zonelist iterators if memory policies can be @@ -4894,7 +4899,7 @@ static inline bool prepare_alloc_pages(gfp_t gfp_ma= sk, unsigned int order, if (should_fail_alloc_page(gfp_mask, order)) return false; =20 - *alloc_flags =3D current_alloc_flags(gfp_mask, *alloc_flags); + *alloc_flags =3D cma_alloc_flags(gfp_mask, *alloc_flags); =20 /* Dirty zone balancing only done in the fast path */ ac->spread_dirty_pages =3D (gfp_mask & __GFP_WRITE); @@ -4932,6 +4937,7 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int= order, int preferred_nid, } =20 gfp_mask &=3D gfp_allowed_mask; + gfp_mask =3D current_gfp_checkmovable(gfp_mask); alloc_mask =3D gfp_mask; if (!prepare_alloc_pages(gfp_mask, order, preferred_nid, nodemask, &ac,= &alloc_mask, &alloc_flags)) return NULL; --=20 2.25.1