On 6 Jun 2024, at 8:44, Pankaj Raghav (Samsung) wrote: > From: Pankaj Raghav <p.raghav@xxxxxxxxxxx> > > create_pagecache_thp_and_fd() in split_huge_page_test.c used the > variable dummy to perform mmap read. > > However, this test was skipped even on XFS which has large folio > support. The issue was compiler (gcc 13.2.0) was optimizing out the > dummy variable, therefore, not creating huge page in the page cache. > > Make it as a global variable to force the compiler not to optimize out > the loop where we read from the mmaped addr. > > Signed-off-by: Pankaj Raghav <p.raghav@xxxxxxxxxxx> > --- > Changes since v1: > - Make the dummy variable as a global variable(willy). > > tools/testing/selftests/mm/split_huge_page_test.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > Reviewed-by: Zi Yan <ziy@xxxxxxxxxx> Thanks. Best Regards, Yan, Zi
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