[PATCH 04/17] IDR test suite: Check handling negative end correctly
From: Matthew Wilcox <willy@infradead.org>
Date: 2017-11-28 21:38:31
Also in:
lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Matthew Wilcox <redacted> 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: Matthew Wilcox <redacted> --- tools/testing/radix-tree/idr-test.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c
index 193450b29bf0..892ef8855b02 100644
--- a/tools/testing/radix-tree/idr-test.c
+++ b/tools/testing/radix-tree/idr-test.c@@ -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); idr_destroy(&idr);
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2.15.0