[0/2] Better support for THP in page cache

Message

Matthew Wilcox Nov. 22, 2018, 9:32 p.m. UTC

This is the first step towards representing THPs more efficiently in
the page cache.  The next step is to insert one head page instead of
HPAGE_PMD_NR.  This passes a Trinity run, but I'm sure there's a
better test-case out there for THP.

Matthew Wilcox (2):
  mm: Remove redundant test from find_get_pages_contig
  page cache: Store only head pages in i_pages

 include/linux/pagemap.h |   9 ++++
 mm/filemap.c            | 106 +++++++++++-----------------------------
 mm/khugepaged.c         |   4 +-
 mm/shmem.c              |   2 +-
 mm/swap_state.c         |   2 +-
 5 files changed, 42 insertions(+), 81 deletions(-)