From 2eacc79c27eb683c4a3ded80c2629387ee0d4e04 Mon Sep 17 00:00:00 2001
From: Rehas Sachdeva <aquannie@gmail.com>
Date: Sat, 18 Feb 2017 07:31:00 -0500
Subject: [PATCH] radix tree test suite: Add test for idr_get_next()
Assert that idr_get_next() returns the next populated entry in the tree with
an ID greater than or equal to the value pointed to by @nextid argument.
Signed-off-by: Rehas Sachdeva <aquannie@gmail.com>
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
---
tools/testing/radix-tree/idr-test.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index a26098c6123d..f20690ac3a97 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c
@@ -153,6 +153,30 @@ void idr_nowait_test(void)
idr_destroy(&idr);
}
+void idr_get_next_test(void)
+{
+ unsigned long i;
+ int nextid;
+ DEFINE_IDR(idr);
+
+ int indices[] = {4, 7, 9, 15, 65, 128, 1000, 99999, 0};
+
+ for(i = 0; indices[i]; i++) {
+ struct item *item = item_create(indices[i], 0);
+ assert(idr_alloc(&idr, item, indices[i], indices[i+1],
+ GFP_KERNEL) == indices[i]);
+ }
+
+ for(i = 0, nextid = 0; indices[i]; i++) {
+ idr_get_next(&idr, &nextid);
+ assert(nextid == indices[i]);
+ nextid++;
+ }
+
+ idr_for_each(&idr, item_idr_free, &idr);
+ idr_destroy(&idr);
+}
+
void idr_checks(void)
{
unsigned long i;
@@ -202,6 +226,7 @@ void idr_checks(void)
idr_alloc_test();
idr_null_test();
idr_nowait_test();
+ idr_get_next_test();
}
/*
--
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