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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id AAA1BC83F27 for ; Wed, 16 Jul 2025 08:27:53 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 4A0CE6B00A2; Wed, 16 Jul 2025 04:27:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 450F86B00A5; Wed, 16 Jul 2025 04:27:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 366C96B00A7; Wed, 16 Jul 2025 04:27:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 251806B00A2 for ; Wed, 16 Jul 2025 04:27:53 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id CC37812C8FB for ; Wed, 16 Jul 2025 08:27:52 +0000 (UTC) X-FDA: 83669449584.19.5EF78B1 Received: from mail-ej1-f49.google.com (mail-ej1-f49.google.com [209.85.218.49]) by imf13.hostedemail.com (Postfix) with ESMTP id 1F01C20009 for ; Wed, 16 Jul 2025 08:27:50 +0000 (UTC) Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=m6SeUUW7; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf13.hostedemail.com: domain of richard.weiyang@gmail.com designates 209.85.218.49 as permitted sender) smtp.mailfrom=richard.weiyang@gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1752654471; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references:dkim-signature; bh=VIkN4L7oNJ6KCOOHf2FchC43SDycITT7FNl71YmS8Bk=; b=Mb9+FoiYYvKXR2cUMRKzC0SpS9ICi4HsaLBtgxKvnskS2VccZH+C+5tDSJ8bAwRuC7QmNj uAem4zzyD7RCDVHYFh86hl9F3PZRziOtwRGMixtk/rsUikoZJjbwSR4YxM2y/1FE7Ca4/L bB4CtuPHZ39xXyvSM/CMRpA95lr8uKA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1752654471; a=rsa-sha256; cv=none; b=18XraI7REgMlPKeMdQgG43aWkqwEVhXhNrjGpUMYAMJbtQ84zAaJaXT0OspUXJiU52Q7pE GC0uDJpUhhl3G5oM4SXT+Sz3pN072Puh0zMTnnKX/aZk45y28BOq+KomZ/4m040resb2ml 88lCsDbqy1Bcj+1pN3c2ZNP4npHbx+I= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=m6SeUUW7; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf13.hostedemail.com: domain of richard.weiyang@gmail.com designates 209.85.218.49 as permitted sender) smtp.mailfrom=richard.weiyang@gmail.com Received: by mail-ej1-f49.google.com with SMTP id a640c23a62f3a-ae6fa02d8feso782178866b.0 for ; Wed, 16 Jul 2025 01:27:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1752654469; x=1753259269; darn=kvack.org; h=message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VIkN4L7oNJ6KCOOHf2FchC43SDycITT7FNl71YmS8Bk=; b=m6SeUUW7BWLoSpqTk6ecHX683w94IoenKbSvRsGX0zOuImx84rD8kpLwsOeKeKVps4 kDBefnV3fqWH6yX8SZbOMMygBOgDqktwhiwAvinH0+6KsMLdmcNQ0Bj0ed2P3tMNVW11 8h5ocZhmy+RcQKaNeehKFbrWJMDK2Honvl1i4Zkz7TDEj5P+E4UzvMlnNwfO6dS0ep0a nlNja/mETFNRfcfQ6DZrErY0SIuQayQvMGySYmVv0b2tVuJQQB4ozoxmZYdpLNeTCLWz X3pAAm1SD6fKDycKvf1A/FT8ZVg8r2gCHIEUh5+wWH0FPWF+X8Oq72Cn7nrLkPlm2iLh SPVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752654469; x=1753259269; h=message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VIkN4L7oNJ6KCOOHf2FchC43SDycITT7FNl71YmS8Bk=; b=odoSvh1h3amXmGXJTKquOT3oIQXaDAyimnQwvrnLVwHACc9r1/3n4KfQXI8PX0QmMn NhS9QokvTNp0nfPUmDxt1KTY7ToAhFzBUlLmwLTKN3GSiXfKqeCKi4L0qiwX9uJ5c3VN bgiWxdM/07S1MHSJyAevXMSRxD4uL0t8w53XNXTDjjl5p4+qi5RUyLqiPxWKNC4tUxsf 29YvoAVyLJfP7ygBksnd5jKMZyMUcU+E4H6bGX6GUwkXSmG+uZrPfRQ0UlM/BbWzRank EStFrKmtFfw/Jice4reQbFlk4ZYXEIac9g5BiiWN2fZkxs+eAcYVLzAfxoRNaBRVo+45 PYQg== X-Gm-Message-State: AOJu0Yyo4O+i/pdMtcjC8fMNCsq6j8gksyhH4Tg1s8Bw3uV4Pa3GpuQ5 zebbEYk1icDBnj5wIqu4WqRArebSu6J08212SJ5lTY7n54b+0RyPz3DqmAEW4Jyt X-Gm-Gg: ASbGncuzwFqwAGxUBcY1f14DQG+aQf2iozQzxkZxiHV416DaBvsCTugEKylFYt2tCer v0lwOYTOeYDmncORykr1NK1OcNEB7PGC/N0bFDPyJP2sV3wqXp+pC9dWi9YhOWM/Pp53MDm57jS ESqA1KLG67POZUmmogix/95FK39WGQSKqE0+1hYR5G9f93LTiy2IKsECUk78jswQY789Dh2umNb dot/bemZ6vlVaOc8JDR8vNGuSMyMx8ppkkaC+2Zm+edaW/WQLpB/jUDwmXXrfi9KRmEkx8C3ppL et/FDZwsMZVMUBCXDCXUmvMAP9pxkNZ7rVcNS6/sbrqDoLrUyEenA1rWAzLopvvP7bLeIjnVIHp B14tgyhHM4IVKN9ZNK8kAfg== X-Google-Smtp-Source: AGHT+IEO7CeiCI1yFWUqnsSWrGwGGr8W18cxer7QQDaskH7+mIAHF6dQHaGOcZ5lB/EpwYsLxYNpCA== X-Received: by 2002:a17:907:f1de:b0:ae0:d4b1:b5f0 with SMTP id a640c23a62f3a-ae9ce0d6011mr175686666b.35.1752654469251; Wed, 16 Jul 2025 01:27:49 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ae6e8294b86sm1159880666b.133.2025.07.16.01.27.48 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 16 Jul 2025 01:27:48 -0700 (PDT) From: Wei Yang To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, Wei Yang Subject: [PATCH 0/3] selftests/mm: assert rmap behave as expected Date: Wed, 16 Jul 2025 08:27:07 +0000 Message-Id: <20250716082710.2801-1-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 X-Stat-Signature: p84yhd4daux3yqffq1hq1pokiztkxizx X-Rspamd-Queue-Id: 1F01C20009 X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1752654470-845697 X-HE-Meta: U2FsdGVkX19JMohYdsw7dSspNRXg55YsJY9g1ozFgDl+WXBC2ew8vL+ncau32h1P8dIClzpIPwjv+GlhYN+q/PNob8X41XYkk4nB7bwP7QaLdpcLwCZmM7xgtkU2xldD7ycxP/k3TrPn8shQGdweTZ9NU3/viXDwkxzR5hcpltASBxEG+8YCmw7cUriI02qWMqq7uwVnA3fJoaQtlfVz0sp0aEJxH2TM80N2vvIN90UFUMRIbgUcuQCb55lQeteEpa8EHpZ2epnzNxyXbKO/iMbUoTgBjKYdvkwX7IHznw9t7852amqbT31amekMXXjHkUqZ9qSV1jV6ZLlTHWcnKg+Ac4NtX75mkOPpNhtlcXqrqAc36BCUKcsy/FcS1hGk8wK4qdKfX/UM3K9eXyV/KFmtbvV+u1FD0kNCZXcuZL4zvV4+PJQkiyrIxTBpOT2N/tZJ4WOojbWKYlAsf5p9j3u6RQWE33aFw70Wl1Ca73dBPwxJdwKycej9bf+OOLo4q+HXdnAjcEzgmNZLyCwf/T+8WVn/0pFzQGL6z3Iik1tJqp7skEHfcVFl2+iv5U0Feyuw1mqP5sTO3i1w8n0UybKbJmH5833Pz8GfCgGiZUfR7oiJbRGiObiNEj2OF6O6f55UuP4ZKkHNT1dzpnevFOpS/NXr7cZUaE7ZWe5GkTZpHNb+VyKnfcYLpVvBFJhCXpeg9WtdkRJAc4fBFY4H96eGwDjqnvKS+7IvasNw+8tFY1SnFqNnlWzXU8K4SiuD/G+KFOkyn6MDGSnWYDXROok7y8/TWZ5/ekpKTiEWnnt53isgq702sK642o1B2tYf3i/faqLTbMIebEWkhy+fBXYR4eDA0EpNTKI3fRWOblGiGdyci+mtQ/LLARo2tm1zR19ttRp5Q8DMLndQrq/IfSqDiifc9sT6LcxoPk5gbq+HiWLyR7F2OdXVA9/Md/uxzT6kWg+3etSPqtXhavf l0SCzmdi 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 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: List-Subscribe: List-Unsubscribe: As David suggested, currently we don't have a high level test case to verify the behavior of rmap. This patch set introduce the verification on rmap by migration. Patch 1 is a trivial cleanup. Patch 2 is a preparation to move ksm related operation into vm_util. Patch 3 is the new test case. Currently it covers following four scenarios: * anonymous page * shmem page * pagecache page * ksm page RFC->v1: * open file in function itself instead of pass fd as paremeter * fault in the region by accessing it instead of print content Wei Yang (3): selftests/mm: check a valid fd with negative value selftests/mm: put general ksm operation into vm_util selftests/mm: assert rmap behave as expected MAINTAINERS | 1 + tools/testing/selftests/mm/.gitignore | 1 + tools/testing/selftests/mm/Makefile | 3 + .../selftests/mm/ksm_functional_tests.c | 95 +--- tools/testing/selftests/mm/rmap.c | 470 ++++++++++++++++++ tools/testing/selftests/mm/run_vmtests.sh | 4 + tools/testing/selftests/mm/vm_util.c | 111 +++++ tools/testing/selftests/mm/vm_util.h | 7 + 8 files changed, 605 insertions(+), 87 deletions(-) create mode 100644 tools/testing/selftests/mm/rmap.c -- 2.34.1