Commit 6e6d3014 authored by Matthew Wilcox's avatar Matthew Wilcox

IDR test suite: Check handling negative end correctly

One of the charming quirks of the idr_alloc() interface is that you
can pass a negative end and it will be interpreted as "maximum".  Ensure
we don't break that.
Signed-off-by: default avatarMatthew Wilcox <>
parent 490645d0
......@@ -207,6 +207,7 @@ void idr_checks(void)
assert(idr_alloc(&idr, item, i, i + 10, GFP_KERNEL) == i);
assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i, GFP_KERNEL) == -ENOSPC);
assert(idr_alloc(&idr, DUMMY_PTR, i - 2, i + 10, GFP_KERNEL) == -ENOSPC);
idr_for_each(&idr, item_idr_free, &idr);
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