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Fri, 09 Jun 2023 05:04:34 -0700 (PDT) Received: from localhost.localdomain ([139.177.225.249]) by smtp.gmail.com with ESMTPSA id v12-20020a65568c000000b00514256c05c2sm2619168pgs.7.2023.06.09.05.04.32 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 09 Jun 2023 05:04:34 -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 v2 1/3] maple_tree: add test for mas_wr_modify() fast path Date: Fri, 9 Jun 2023 20:03:45 +0800 Message-Id: <20230609120347.63936-2-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) In-Reply-To: <20230609120347.63936-1-zhangpeng.00@bytedance.com> References: <20230609120347.63936-1-zhangpeng.00@bytedance.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: DEBE4C000C X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: yi7at4uuj8qkfbbac6u9ak9qapqadtzs X-HE-Tag: 1686312275-904817 X-HE-Meta: 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 PVcj+ZH5 IZOxAQdYaUBF1iQ96V0tpj+MMfCrNU4DOkUkDobj7Li/VYqmF1xviRv/x6iSUJ6XG2rs94KX0ZsXL8V9WzRzTZIfPFtlUmS6IDjxgMkgCKr6heRZdBpQ7L4BtRb43PR+QbjYhdKAkAoD8quq27MV2H6bvAg3fA6SXgEyK/RrqJLXKGmGANw/e6nE0+62BTJfTuacghp5/4wc37NDnVhvOX19Y4RAdj2AuYPJutP71A37CkeYl+BYkZZbRpQTvF9Gx2SmSMOo7QewjSH/7EZrjV62pHqclCKRiD4JkNTsAPC/Yk2DD3lbqMmimk4mAxuNEHacWOIHyLNfVO2DwClAtL6l+FB1Wx6K6olEoBZIAttIrwY1z1ZHKzowkeCXOJi4qo+C/St476OskkMjX0z3w0CCyEx+J09ONuqgeP8CWTyUBQcOf4MZa/ewLdXqm8aWuYR8NECOjNLj/9AQ= 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 --- 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 15d7b7bce7d6..9403472af3d7 100644 --- a/lib/test_maple_tree.c +++ b/lib/test_maple_tree.c @@ -1159,6 +1159,71 @@ 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);