| From: |
| "Kirill A. Shutemov" <kirill-AT-shutemov.name> |
| To: |
| akpm-AT-linux-foundation.org, Andrea Arcangeli <aarcange-AT-redhat.com> |
| Subject: |
| [PATCHv2 0/8] thp/khugepaged improvements and CoW semantics |
| Date: |
| Fri, 3 Apr 2020 14:29:20 +0300 |
| Message-ID: |
| <20200403112928.19742-1-kirill.shutemov@linux.intel.com> |
| Cc: |
| Zi Yan <ziy-AT-nvidia.com>, Yang Shi <yang.shi-AT-linux.alibaba.com>, linux-mm-AT-kvack.org, linux-kernel-AT-vger.kernel.org, "Kirill A. Shutemov" <kirill.shutemov-AT-linux.intel.com> |
| Archive-link: |
| Article |
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.
Please review and consider applying.
v2:
- Fix race in compound page handling;
- Add one more test-case for compound page case;
- Rework LRU add cache draining;
- Typos;
Kirill A. Shutemov (8):
khugepaged: Add self test
khugepaged: Do not stop collapse if less than half PTEs are referenced
khugepaged: Drain all LRU caches before scanning pages
khugepaged: Drain LRU add pagevec after swapin
khugepaged: Allow to callapse a page shared across fork
khugepaged: Allow to collapse PTE-mapped compound pages
thp: Change CoW semantics for anon-THP
khugepaged: Introduce 'max_ptes_shared' tunable
Documentation/admin-guide/mm/transhuge.rst | 7 +
include/trace/events/huge_memory.h | 3 +-
mm/huge_memory.c | 249 +-----
mm/khugepaged.c | 184 +++-
tools/testing/selftests/vm/Makefile | 1 +
tools/testing/selftests/vm/khugepaged.c | 982 +++++++++++++++++++++
6 files changed, 1153 insertions(+), 273 deletions(-)
create mode 100644 tools/testing/selftests/vm/khugepaged.c
--
2.26.0
