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lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test
Add a parameter `use_huge' for fix_size_alloc_test(), which can be used to test allocation vie vmalloc_huge for both functionality and performance. Link: https://lkml.kernel.org/r/20221212055657.698420-1-panqinglin2020@iscas.ac.cn Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn> Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -38,6 +38,9 @@ __param(int, test_loop_count, 1000000,
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__param(int, nr_pages, 0,
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__param(int, nr_pages, 0,
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"Set number of pages for fix_size_alloc_test(default: 1)");
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"Set number of pages for fix_size_alloc_test(default: 1)");
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__param(bool, use_huge, false,
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"Use vmalloc_huge in fix_size_alloc_test");
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__param(int, run_test_mask, INT_MAX,
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__param(int, run_test_mask, INT_MAX,
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"Set tests specified in the mask.\n\n"
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"Set tests specified in the mask.\n\n"
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"\t\tid: 1, name: fix_size_alloc_test\n"
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"\t\tid: 1, name: fix_size_alloc_test\n"
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@ -264,7 +267,10 @@ static int fix_size_alloc_test(void)
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int i;
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int i;
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for (i = 0; i < test_loop_count; i++) {
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for (i = 0; i < test_loop_count; i++) {
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ptr = vmalloc((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE);
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if (use_huge)
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ptr = vmalloc_huge((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE, GFP_KERNEL);
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else
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ptr = vmalloc((nr_pages > 0 ? nr_pages:1) * PAGE_SIZE);
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if (!ptr)
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if (!ptr)
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return -1;
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return -1;
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