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Wed, 28 Jun 2023 00:37:11 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id jj6-20020a170903048600b001b8021fbcd2sm4836988plb.280.2023.06.28.00.37.08 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Wed, 28 Jun 2023 00:37:11 -0700 (PDT) From: Peng Zhang To: Liam.Howlett@oracle.com Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org, Peng Zhang Subject: [PATCH v4 1/4] maple_tree: add test for mas_wr_modify() fast path Date: Wed, 28 Jun 2023 15:36:54 +0800 Message-Id: <20230628073657.75314-2-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) In-Reply-To: <20230628073657.75314-1-zhangpeng.00@bytedance.com> References: <20230628073657.75314-1-zhangpeng.00@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 0E517C000D X-Rspam-User: X-Stat-Signature: 3skbqmyyx8n7so39t8up8d8fc375b9rj X-Rspamd-Server: rspam03 X-HE-Tag: 1687937832-531235 X-HE-Meta: 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 5Vn97QB/ jjjePU3DLWwG81ed5ifMWfzOBLoWoyBjLSYQ7SzWI7nbWPTk2I06bYemHDg5o/b5ewqdE7sC/VPmpDlsDDp0xbcdLoepAlnNbaEpBU23yNrrRBnMdTNsNbvwu6UbpLj+eleIR60IFoMYQR/YhLppn0fZCI61R9pox1dlUD2MM0yTg0ZOQ3LKcONGq4bDtrA9lYJd7hJOOrAg7XvOk3QRgzChNOEZP0k+pWOuWySMQhGuz/E6ge30znDKZRQT/jsgXDNpnygAoxXo5CCk2RgwXBvaEtWo+c43Pni3mCnfVY5pvDsDWBg8JEvpZvtUl5sxk6p4euGf1KjKkVV7DL2t1uGbxfKB0mGHjDHv0Po7irGbMUeW1DAgUchuU9bA3VX93eswGoFRXvqYsEh/zHSW3ZJCku1uA3+QwjteU59qd3u9OclV3S0ewY1vfoUpPjQH7YxfQYK/kVqLWvQwTbe0PciT1pz5fEmK4MuDs 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: Add tests for all cases of mas_wr_append() and mas_wr_slot_store(). Signed-off-by: Peng Zhang Reviewed-by: Liam R. Howlett --- lib/test_maple_tree.c | 65 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/lib/test_maple_tree.c b/lib/test_maple_tree.c index 9939be34e516..9f60e0c4cc8c 100644 --- a/lib/test_maple_tree.c +++ b/lib/test_maple_tree.c @@ -1157,6 +1157,71 @@ static noinline void __init check_ranges(struct maple_tree *mt) MT_BUG_ON(mt, !mt_height(mt)); mtree_destroy(mt); + /* Check in-place modifications */ + mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); + /* Append to the start of last range */ + mt_set_non_kernel(50); + for (i = 0; i <= 500; i++) { + val = i * 5 + 1; + val2 = val + 4; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Append to the last range without touching any boundaries */ + for (i = 0; i < 10; i++) { + val = val2 + 5; + val2 = val + 4; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Append to the end of last range */ + val = val2; + for (i = 0; i < 10; i++) { + val += 5; + MT_BUG_ON(mt, mtree_test_store_range(mt, val, ULONG_MAX, + xa_mk_value(val)) != 0); + } + + /* Overwriting the range and over a part of the next range */ + for (i = 10; i < 30; i += 2) { + val = i * 5 + 1; + val2 = val + 5; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Overwriting a part of the range and over the next range */ + for (i = 50; i < 70; i += 2) { + val2 = i * 5; + val = val2 - 5; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* + * Expand the range, only partially overwriting the previous and + * next ranges + */ + for (i = 100; i < 130; i += 3) { + val = i * 5 - 5; + val2 = i * 5 + 1; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* + * Expand the range, only partially overwriting the previous and + * next ranges, in RCU mode + */ + mt_set_in_rcu(mt); + for (i = 150; i < 180; i += 3) { + val = i * 5 - 5; + val2 = i * 5 + 1; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + MT_BUG_ON(mt, !mt_height(mt)); + mt_validate(mt); + mt_set_non_kernel(0); + mtree_destroy(mt); + /* Test rebalance gaps */ mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); mt_set_non_kernel(50); -- 2.20.1