From nobody Fri Feb 13 03:07:30 2026 Received: from out30-124.freemail.mail.aliyun.com (out30-124.freemail.mail.aliyun.com [115.124.30.124]) (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 D7D51145344 for ; Tue, 4 Jun 2024 10:18:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717496302; cv=none; b=XWRo8qwGamiUlKCfSLg8UBqW5rX9FYG7gtapOVBoFpzcBycpd40enPHe2vScxfkZbYam0QL+vyUu8Y6HuKDpI92jcGlFD95WKt/ursRIDvNajNNw1mWryMrD9taaNNG7rZWPGt1OIo+8l3FvHmm6rCgrIwZ8E9zYX73YvmNd2wA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717496302; c=relaxed/simple; bh=bnOpRzV0MPKnJ0LrNIyRkUZWXq3NrrU+3Jw5N+ciYAI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VsXYYyd/A/AdYuNj7oUZsUOju/r2SnxIg2PzdW7ay+KHJ5gTbNdlNgX9QOkYnwbEpa2vQ3Pjfh0ZtSZBaol4aRWgoNHh+VZ/ictLy9is2rZBy8WInp4tj57IYGwEoOZmVcAKBSwNRfzuMG3G76QDsWW0LPVnhWZhqALH6aQf30A= 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=WAS1r96U; arc=none smtp.client-ip=115.124.30.124 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="WAS1r96U" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1717496292; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=hr324HRcgNNfrgZ8GDchBNfhicaPktU9TGw54OvPLi4=; b=WAS1r96UnP3OMajpmB6whj5Okr5epNxbueTWqTZ0Z2j+Ca6uOw1e8zZPCHAUNxPSHh/0utQEhaUMg3TQDos73p5sKCdwkjoqo90+UaV1OjAS1D1aP43AXVD0NXsogLwXqwRaPVdTqBrb8i1t6rNdjRm9XZIDydkfeePBctP61SY= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033068173054;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=16;SR=0;TI=SMTPD_---0W7qsp1y_1717496290; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0W7qsp1y_1717496290) by smtp.aliyun-inc.com; Tue, 04 Jun 2024 18:18:10 +0800 From: Baolin Wang To: akpm@linux-foundation.org, hughd@google.com Cc: willy@infradead.org, david@redhat.com, wangkefeng.wang@huawei.com, ying.huang@intel.com, 21cnbao@gmail.com, ryan.roberts@arm.com, shy828301@gmail.com, ziy@nvidia.com, ioworker0@gmail.com, da.gomez@samsung.com, p.raghav@samsung.com, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 6/6] mm: shmem: add mTHP counters for anonymous shmem Date: Tue, 4 Jun 2024 18:17:50 +0800 Message-Id: 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 mTHP counters for anonymous shmem. Signed-off-by: Baolin Wang --- include/linux/huge_mm.h | 3 +++ mm/huge_memory.c | 6 ++++++ mm/shmem.c | 18 +++++++++++++++--- 3 files changed, 24 insertions(+), 3 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 909cfc67521d..212cca384d7e 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -281,6 +281,9 @@ enum mthp_stat_item { MTHP_STAT_ANON_FAULT_FALLBACK_CHARGE, MTHP_STAT_SWPOUT, MTHP_STAT_SWPOUT_FALLBACK, + MTHP_STAT_FILE_ALLOC, + MTHP_STAT_FILE_FALLBACK, + MTHP_STAT_FILE_FALLBACK_CHARGE, __MTHP_STAT_COUNT }; =20 diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 1360a1903b66..3fbcd77f5957 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -555,6 +555,9 @@ DEFINE_MTHP_STAT_ATTR(anon_fault_fallback, MTHP_STAT_AN= ON_FAULT_FALLBACK); DEFINE_MTHP_STAT_ATTR(anon_fault_fallback_charge, MTHP_STAT_ANON_FAULT_FAL= LBACK_CHARGE); DEFINE_MTHP_STAT_ATTR(swpout, MTHP_STAT_SWPOUT); DEFINE_MTHP_STAT_ATTR(swpout_fallback, MTHP_STAT_SWPOUT_FALLBACK); +DEFINE_MTHP_STAT_ATTR(file_alloc, MTHP_STAT_FILE_ALLOC); +DEFINE_MTHP_STAT_ATTR(file_fallback, MTHP_STAT_FILE_FALLBACK); +DEFINE_MTHP_STAT_ATTR(file_fallback_charge, MTHP_STAT_FILE_FALLBACK_CHARGE= ); =20 static struct attribute *stats_attrs[] =3D { &anon_fault_alloc_attr.attr, @@ -562,6 +565,9 @@ static struct attribute *stats_attrs[] =3D { &anon_fault_fallback_charge_attr.attr, &swpout_attr.attr, &swpout_fallback_attr.attr, + &file_alloc_attr.attr, + &file_fallback_attr.attr, + &file_fallback_charge_attr.attr, NULL, }; =20 diff --git a/mm/shmem.c b/mm/shmem.c index 2ecc41521dbb..d9a11950c586 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1773,6 +1773,9 @@ static struct folio *shmem_alloc_and_add_folio(struct= vm_fault *vmf, =20 if (pages =3D=3D HPAGE_PMD_NR) count_vm_event(THP_FILE_FALLBACK); +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + count_mthp_stat(order, MTHP_STAT_FILE_FALLBACK); +#endif order =3D next_order(&suitable_orders, order); } } else { @@ -1792,9 +1795,15 @@ static struct folio *shmem_alloc_and_add_folio(struc= t vm_fault *vmf, if (xa_find(&mapping->i_pages, &index, index + pages - 1, XA_PRESENT)) { error =3D -EEXIST; - } else if (pages =3D=3D HPAGE_PMD_NR) { - count_vm_event(THP_FILE_FALLBACK); - count_vm_event(THP_FILE_FALLBACK_CHARGE); + } else if (pages > 1) { + if (pages =3D=3D HPAGE_PMD_NR) { + count_vm_event(THP_FILE_FALLBACK); + count_vm_event(THP_FILE_FALLBACK_CHARGE); + } +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + count_mthp_stat(folio_order(folio), MTHP_STAT_FILE_FALLBACK); + count_mthp_stat(folio_order(folio), MTHP_STAT_FILE_FALLBACK_CHARGE); +#endif } goto unlock; } @@ -2168,6 +2177,9 @@ static int shmem_get_folio_gfp(struct inode *inode, p= goff_t index, if (!IS_ERR(folio)) { if (folio_test_pmd_mappable(folio)) count_vm_event(THP_FILE_ALLOC); +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + count_mthp_stat(folio_order(folio), MTHP_STAT_FILE_ALLOC); +#endif goto alloced; } if (PTR_ERR(folio) =3D=3D -EEXIST) --=20 2.39.3