From a9bed1e1c2a9bb36cdd29af0ef48044d1b9e8c2a Mon Sep 17 00:00:00 2001 From: John Hubbard Date: Mon, 14 Dec 2020 19:05:17 -0800 Subject: selftests/vm: only some gup_test items are really benchmarks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Therefore, some minor cleanup and improvements are in order: 1. Rename the other items appropriately. 2. Stop reporting timing information on the non-benchmark items. It's still being recorded and is available, but there's no point in cluttering up the report with data that no one reasonably needs to check. 3. Don't do iterations, for non-benchmark items. 4. Print out a shorter, more appropriate report for the non-benchmark tests. 5. Add the command that was run, to the report. This really helps, as there are quite a lot of options now. 6. Use a larger integer type for cmd, now that it's being compared Otherwise it doesn't work, because in this case cmd is about 3 billion, which is the perfect size for problems with signed vs unsigned int. Link: https://lkml.kernel.org/r/20201026064021.3545418-6-jhubbard@nvidia.com Signed-off-by: John Hubbard Cc: Jérôme Glisse Cc: Jonathan Corbet Cc: Ralph Campbell Cc: Shuah Khan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/gup_test.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'mm/gup_test.c') diff --git a/mm/gup_test.c b/mm/gup_test.c index 4c2d70d88f24..173bb38f3688 100644 --- a/mm/gup_test.c +++ b/mm/gup_test.c @@ -13,13 +13,13 @@ static void put_back_pages(unsigned int cmd, struct page **pages, switch (cmd) { case GUP_FAST_BENCHMARK: - case GUP_BENCHMARK: + case GUP_BASIC_TEST: for (i = 0; i < nr_pages; i++) put_page(pages[i]); break; case PIN_FAST_BENCHMARK: - case PIN_BENCHMARK: + case PIN_BASIC_TEST: case PIN_LONGTERM_BENCHMARK: unpin_user_pages(pages, nr_pages); break; @@ -34,7 +34,7 @@ static void verify_dma_pinned(unsigned int cmd, struct page **pages, switch (cmd) { case PIN_FAST_BENCHMARK: - case PIN_BENCHMARK: + case PIN_BASIC_TEST: case PIN_LONGTERM_BENCHMARK: for (i = 0; i < nr_pages; i++) { page = pages[i]; @@ -94,7 +94,7 @@ static int __gup_test_ioctl(unsigned int cmd, nr = get_user_pages_fast(addr, nr, gup->flags, pages + i); break; - case GUP_BENCHMARK: + case GUP_BASIC_TEST: nr = get_user_pages(addr, nr, gup->flags, pages + i, NULL); break; @@ -102,7 +102,7 @@ static int __gup_test_ioctl(unsigned int cmd, nr = pin_user_pages_fast(addr, nr, gup->flags, pages + i); break; - case PIN_BENCHMARK: + case PIN_BASIC_TEST: nr = pin_user_pages(addr, nr, gup->flags, pages + i, NULL); break; @@ -157,10 +157,10 @@ static long gup_test_ioctl(struct file *filep, unsigned int cmd, switch (cmd) { case GUP_FAST_BENCHMARK: - case GUP_BENCHMARK: case PIN_FAST_BENCHMARK: - case PIN_BENCHMARK: case PIN_LONGTERM_BENCHMARK: + case GUP_BASIC_TEST: + case PIN_BASIC_TEST: break; default: return -EINVAL; -- cgit v1.2.3