From nobody Wed Dec 17 19:07:55 2025 Received: from out30-130.freemail.mail.aliyun.com (out30-130.freemail.mail.aliyun.com [115.124.30.130]) (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 B7B401422AE for ; Mon, 6 May 2024 08:46:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714985214; cv=none; b=flEACpr2X5qbLosewBCoFnVo4osto06PDDISIekXwDS8oBvTlemhqQQn3QhHNxM8LaELgD67deZ1nO5uSCydEuYYzCrId4u4TBTg1D17eo8jXt8soU3f2f0X+Bf07Ca8rG55Owg+2lCT3xUwKLYsQLz1fiusyWvb8jH1atGsFtg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714985214; c=relaxed/simple; bh=KSE8PzIjqSwH61R6iAt633ULjGLPnWmzNqBKlZgUjh8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=JRoUC1d4rjpoV0PHI61nt2B4rKmP/q1Nzq/AzbssyI4to3byWoyjI8icBhjnkv6YE9xRU5iG+Md6vGN97HckneTU8bzRmsxPwwih+P2cPB4lMRB017blPzA/vhWnkMciavHEFRPZTuNGrG/uh3KlJzMEpov5oTd1jblBDtYD3mM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=NBO3RhgZ; arc=none smtp.client-ip=115.124.30.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="NBO3RhgZ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1714985209; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=e+vn44n5PSOyoo2A5G9/u00K/6MLWmZWHwZJ5wJKuyA=; b=NBO3RhgZtwwSxO/fhmCPakT/RPYawsIkyGEhX/KM/GFSgkZswZ3uv7xtXtsWEjhKjq1ki+1ki6grE2SeMeRsFfTW1EjUkG7ZGXFdA6g5LzJ8DHdqkDKVbmysXw2pT4vMWdTvre0GNyO0EeVMIyXjt0OUwxMMLI/9lNGtHngDTz8= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R721e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037067111;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=14;SR=0;TI=SMTPD_---0W5wQIAj_1714985206; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0W5wQIAj_1714985206) by smtp.aliyun-inc.com; Mon, 06 May 2024 16:46:47 +0800 From: Baolin Wang To: akpm@linux-foundation.org, hughd@google.com Cc: willy@infradead.org, david@redhat.com, ioworker0@gmail.com, wangkefeng.wang@huawei.com, ying.huang@intel.com, 21cnbao@gmail.com, ryan.roberts@arm.com, shy828301@gmail.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/8] mm: shmem: add an 'order' parameter for shmem_alloc_hugefolio() Date: Mon, 6 May 2024 16:46:27 +0800 Message-Id: <1484509ad5a9751b449e01fb695c4e7634be14bf.1714978902.git.baolin.wang@linux.alibaba.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a new parameter to specify the huge page order for shmem_alloc_hugefoli= o(), as a preparation to supoort mTHP. Signed-off-by: Baolin Wang --- mm/shmem.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index fa2a0ed97507..e4483c4596a8 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1604,14 +1604,14 @@ static gfp_t limit_gfp_mask(gfp_t huge_gfp, gfp_t l= imit_gfp) } =20 static struct folio *shmem_alloc_hugefolio(gfp_t gfp, - struct shmem_inode_info *info, pgoff_t index) + struct shmem_inode_info *info, pgoff_t index, int order) { struct mempolicy *mpol; pgoff_t ilx; struct page *page; =20 - mpol =3D shmem_get_pgoff_policy(info, index, HPAGE_PMD_ORDER, &ilx); - page =3D alloc_pages_mpol(gfp, HPAGE_PMD_ORDER, mpol, ilx, numa_node_id()= ); + mpol =3D shmem_get_pgoff_policy(info, index, order, &ilx); + page =3D alloc_pages_mpol(gfp, order, mpol, ilx, numa_node_id()); mpol_cond_put(mpol); =20 return page_rmappable_folio(page); @@ -1660,7 +1660,7 @@ static struct folio *shmem_alloc_and_add_folio(gfp_t = gfp, index + HPAGE_PMD_NR - 1, XA_PRESENT)) return ERR_PTR(-E2BIG); =20 - folio =3D shmem_alloc_hugefolio(gfp, info, index); + folio =3D shmem_alloc_hugefolio(gfp, info, index, HPAGE_PMD_ORDER); if (!folio) count_vm_event(THP_FILE_FALLBACK); } else { --=20 2.39.3