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b=ksnNqjLwmIBv9cprB+iVdxapHXYRWuHIv7lBatBbzqJAR6RM6AdrgVAKxmzKW6x4Z fW42gGK6CTUxsEtYi0Xky7soUz555ekLZ+gRTDqvnqrkXDm+QAJHLCaj9R16A2CwYk n1Glu/83kOe/MbdFwXxcXRY5uBWf2jCLfy/1eAMJaNrKAMqKHLwYJhTCBrIgbNp7IA UUDryw9tzehM2o5YHjVkxvGX/poiaqb+/8zOIhLeLp3aWCHLHPotLSU0YEe4K61uRm Pg9w4l7EY2fmUfyqZyiUUqqUmm2osn93UsKCiAWeOww+rU4va9Fi19dogD19FDzq2S /qR8vqVBB3rzg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , Shuah Khan , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 02/22] selftests/damon/_damon_sysfs: support DAMOS filters setup Date: Sun, 20 Jul 2025 10:16:32 -0700 Message-Id: <20250720171652.92309-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250720171652.92309-1-sj@kernel.org> References: <20250720171652.92309-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: o3hid46a5isk3psnx3x4y66z9okafyft X-Rspamd-Queue-Id: A8EAAA0002 X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1753031819-902273 X-HE-Meta: U2FsdGVkX19IvZrvredAxE9TLVWzhTR5fMm6a/v7EJLWcBBL6yXLl3f+A+GjfambPMxfr9v+Uf01b+OZkWl8cfLNS23K8rbrg5QsCWp9tz3fM3JPN99nI6WXmfiVG0ZInZu957SB4eDFwDXujNYqJ8ovILbNzHq+yUcRJiTaVaO/A3fuwH3lDKCrweMd/925jLn+0GNu7LETRgy4y9vEUWgAV32R0JN1girICau/zT703+JGs0IdgAzw4US6MJJ4lHSo2LlX8yesUb7kwsEYbbM0NMNJp5j52dPoTUvnOmdz/lCaucouywDxISsv94jc549el7llRBoVpSCRMUYPE2ic5PSLM9IJKDUUR61AaStDnyPYgegrMDCQXXJJOmi1bi/KHrSwKZtNN0iX83PdDbLRNxqnAD7YKC9wsJyUA9x48n7Pcp5iIWYwhh6TPgjPcefNC3hpZzSBsCzq/xkGWIbte+7Tgw/i6fxzkj8/KstdD+8lG2HdK7uOmQbaMaxaxJCOXTP+DrBPw5ur3LOL/d2US+4uE2KolB8Gq8xqiTkafeIP0QAhjOziCoob8ozvtwQ9H20XOH1LPM8/ANgSO1HnTQniIk00yfRkqr4bQjDxJToLU1C3SThiBM+dQ1IRRpJZFqcpRS7tMFULVhcnM7ud/IeRPzh6vAfZC9g1RFhRUURUB8U0YAkH95eax+MXSAcJ9lwcXnr/TVNEZadvRsivYJY4hFlYVOHkIrQ6JNSqp6clZQbjRJWOM2yB+kPQTCyBLUcy1gprH53Ndctg1U416hOcnP1P0j2HyUaVwg3u3bTM5Ly2pR5feZ5N0ss1577ZOQd2tmvpZ2k4/tKq6cryQ95y6L9D1q2JQeECofpYjdBVdAnytjC5SXQHp12cDhjTwq1f08qyzf6GJTN28a0rcC3xRuzqhxmI49WGWPCATNMm5p5IcW/rwsGVEVTs+RLkKoKNH++iE/ob1Lx eWjqTKdB /v+d5XJMTLXhpwJ6OPmDpTwYqzM6WVDABwpyi7JcxgQglvDjRB6PreMgoi97zfVmyLA5BAKSAVghTVMgAGg78KI3uYnC0xIcvDcv5W7lwHjrkUu8ksq8WnXiBHlZLmqL0dGijJ/xDfenFAtV9qK0m1XJtVIPFZl12auqgaskOw9TxD+a3SITu94NLdGtZOkq7LRbgH1f2EEmrtrO/uO2n+hCF2Iv4gCWkYrleEd91a4+KMQ+fk9as0h1bl2I2LZ55tR2znphhncNaojF3SzvmKFQZobIPYMrxcqtKcBe8+Zpy8Y5a6FD/lLqDdkYGY/7IsrD1KCYzUGf1PfixM1xl/JCKZeugCoUmxRVUZ6p8aHS1sq8= 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: _damon_sysfs.py contains code for test-purpose DAMON sysfs interface control. Add support of DAMOS filters setup for more tests. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/_damon_sysfs.py | 115 +++++++++++++++++- 1 file changed, 111 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/selftests/damon/_damon_sysfs.py index d81aa11e3d32..f853af6ad926 100644 --- a/tools/testing/selftests/damon/_damon_sysfs.py +++ b/tools/testing/selftests/damon/_damon_sysfs.py @@ -201,6 +201,96 @@ class DamosWatermarks: if err is not None: return err +class DamosFilter: + type_ = None + matching = None + allow = None + memcg_path = None + addr_start = None + addr_end = None + target_idx = None + min_ = None + max_ = None + idx = None + filters = None # owner filters + + def __init__(self, type_='anon', matching=False, allow=False, + memcg_path='', addr_start=0, addr_end=0, target_idx=0, min_=0, + max_=0): + self.type_ = type_ + self.matching = matching + self.allow = allow + self.memcg_path = memcg_path, + self.addr_start = addr_start + self.addr_end = addr_end + self.target_idx = target_idx + self.min_ = min_ + self.max_ = max_ + + def sysfs_dir(self): + return os.path.join(self.filters.sysfs_dir(), '%d' % self.idx) + + def stage(self): + err = write_file(os.path.join(self.sysfs_dir(), 'type'), self.type_) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'matching'), + self.matching) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'allow'), self.allow) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'memcg_path'), + self.memcg_path) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'addr_start'), + self.addr_start) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'addr_end'), + self.addr_end) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'damon_target_idx'), + self.target_idx) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'min'), self.min_) + if err is not None: + return err + err = write_file(os.path.join(self.sysfs_dir(), 'max'), self.max_) + if err is not None: + return err + return None + +class DamosFilters: + name = None + filters = None + scheme = None # owner scheme + + def __init__(self, name, filters=[]): + self.name = name + self.filters = filters + for idx, filter_ in enumerate(self.filters): + filter_.idx = idx + filter_.filters = self + + def sysfs_dir(self): + return os.path.join(self.scheme.sysfs_dir(), self.name) + + def stage(self): + err = write_file(os.path.join(self.sysfs_dir(), 'nr_filters'), + len(self.filters)) + if err is not None: + return err + for filter_ in self.filters: + err = filter_.stage() + if err is not None: + return err + return None + class DamosStats: nr_tried = None sz_tried = None @@ -227,8 +317,10 @@ class Damos: access_pattern = None quota = None watermarks = None + core_filters = None + ops_filters = None + filters = None apply_interval_us = None - # todo: Support watermarks, stats idx = None context = None tried_bytes = None @@ -237,6 +329,7 @@ class Damos: def __init__(self, action='stat', access_pattern=DamosAccessPattern(), quota=DamosQuota(), watermarks=DamosWatermarks(), + core_filters=[], ops_filters=[], filters=[], apply_interval_us=0): self.action = action self.access_pattern = access_pattern @@ -245,6 +338,16 @@ class Damos: self.quota.scheme = self self.watermarks = watermarks self.watermarks.scheme = self + + self.core_filters = DamosFilters(name='core_filters', + filters=core_filters) + self.core_filters.scheme = self + self.ops_filters = DamosFilters(name='ops_filters', + filters=ops_filters) + self.ops_filters.scheme = self + self.filters = DamosFilters(name='filters', filters=filters) + self.filters.scheme = self + self.apply_interval_us = apply_interval_us def sysfs_dir(self): @@ -271,9 +374,13 @@ class Damos: if err is not None: return err - # disable filters - err = write_file( - os.path.join(self.sysfs_dir(), 'filters', 'nr_filters'), '0') + err = self.core_filters.stage() + if err is not None: + return err + err = self.ops_filters.stage() + if err is not None: + return err + err = self.filters.stage() if err is not None: return err -- 2.39.5