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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>
zero-colors
Rehas Sachdeva 2017-02-18 07:31:00 -05:00 committed by Matthew Wilcox
parent 2d6be4abf5
commit 2eacc79c27
1 changed files with 25 additions and 0 deletions
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25
tools/testing/radix-tree/idr-test.c
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@ -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();
}
/*