[PATCH v2 0/2] promote mapped executable folios after first usage for MGLRU

[Baolin Wang <baolin.wang@linux.alibaba.com>]

Now MGLRU's protection of mapped executable file folios is less reliable.
Follow the classical LRU's logic, promoting mapped executable file folios
after their first usage to give executable code a better chance to stay in
memory and improve workload performance (See patch 2 for more details).

Changes from v1:
 - Add a new patch to clean up vma flags as preparation.
 - Add a new helper to check exec file folios (per Kaisui).
 - Promote exec file folios in lru_gen_set_refs (Per Sashiko). 

Baolin Wang (2):
  mm: vmscan: convert folio_referenced() to use vma_flags_t
  mm: mglru: promote mapped executable folios after first usage

 include/linux/mm_inline.h |  6 +++++
 include/linux/rmap.h      |  7 +++---
 mm/rmap.c                 | 19 +++++++++------
 mm/vmscan.c               | 51 +++++++++++++++++++++++----------------
 4 files changed, 50 insertions(+), 33 deletions(-)

-- 
2.47.3