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e0c13f9761
Patch series "thp/khugepaged improvements and CoW semantics", v4. The patchset adds khugepaged selftest (anon-THP only for now), expands cases khugepaged can handle and switches anon-THP copy-on-write handling to 4k. This patch (of 8): The test checks if khugepaged is able to recover huge page where we expect to do so. It only covers anon-THP for now. Currently the test shows few failures. They are going to be addressed by the following patches. [colin.king@canonical.com: fix several spelling mistakes] Link: http://lkml.kernel.org/r/20200420084241.65433-1-colin.king@canonical.com [aneesh.kumar@linux.ibm.com: replace the usage of system(3) in the test] Link: http://lkml.kernel.org/r/20200429110727.89388-1-aneesh.kumar@linux.ibm.com [kirill@shutemov.name: fixup for issues I've noticed] Link: http://lkml.kernel.org/r/20200429124816.jp272trghrzxx5j5@box [jhubbard@nvidia.com: add khugepaged to .gitignore] Link: http://lkml.kernel.org/r/20200517002509.362401-1-jhubbard@nvidia.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Zi Yan <ziy@nvidia.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Acked-by: Yang Shi <yang.shi@linux.alibaba.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: William Kucharski <william.kucharski@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Link: http://lkml.kernel.org/r/20200416160026.16538-1-kirill.shutemov@linux.intel.com Link: http://lkml.kernel.org/r/20200416160026.16538-2-kirill.shutemov@linux.intel.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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