From 3e3cdc68bede179a957fcd6be7b833a83df4e5de Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Wed, 14 Dec 2016 15:09:10 -0800 Subject: radix tree test suite: check multiorder iteration The random iteration test only inserts order-0 entries currently. Update it to insert entries of order between 7 and 0. Also make the maximum index configurable, make some variables static, make the test duration variable, remove some useless spinning, and add a fifth thread which calls tag_tagged_items(). Link: http://lkml.kernel.org/r/1480369871-5271-62-git-send-email-mawilcox@linuxonhyperv.com Signed-off-by: Matthew Wilcox Tested-by: Kirill A. Shutemov Cc: Konstantin Khlebnikov Cc: Ross Zwisler Cc: Matthew Wilcox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- tools/testing/radix-tree/multiorder.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'tools/testing/radix-tree/multiorder.c') diff --git a/tools/testing/radix-tree/multiorder.c b/tools/testing/radix-tree/multiorder.c index 9757b8928bd4..08b4e16dc86f 100644 --- a/tools/testing/radix-tree/multiorder.c +++ b/tools/testing/radix-tree/multiorder.c @@ -75,8 +75,27 @@ static void __multiorder_tag_test(int index, int order) item_kill_tree(&tree); } +static void __multiorder_tag_test2(unsigned order, unsigned long index2) +{ + RADIX_TREE(tree, GFP_KERNEL); + unsigned long index = (1 << order); + index2 += index; + + assert(item_insert_order(&tree, 0, order) == 0); + assert(item_insert(&tree, index2) == 0); + + assert(radix_tree_tag_set(&tree, 0, 0)); + assert(radix_tree_tag_set(&tree, index2, 0)); + + assert(tag_tagged_items(&tree, NULL, 0, ~0UL, 10, 0, 1) == 2); + + item_kill_tree(&tree); +} + static void multiorder_tag_tests(void) { + int i, j; + /* test multi-order entry for indices 0-7 with no sibling pointers */ __multiorder_tag_test(0, 3); __multiorder_tag_test(5, 3); @@ -116,6 +135,10 @@ static void multiorder_tag_tests(void) __multiorder_tag_test(300, 8); __multiorder_tag_test(0x12345678UL, 8); + + for (i = 1; i < 10; i++) + for (j = 0; j < (10 << i); j++) + __multiorder_tag_test2(i, j); } static void multiorder_check(unsigned long index, int order) -- cgit v1.2.3