[PATCH v2 0/6] mm: hugetlb+THP folio and migration cleanups

David Hildenbrand
2025-01-13T13:16:32Z

Some cleanups around more folio conversion and migration handling that
I collected working on random stuff.

Patch #2->#6 were previous sent as part of [1], but I think they make
sense independent of that.

[1] https://lkml.kernel.org/r/20241108162040.159038-1-tabba@google.com

v1 -> v2:
* "mm/hugetlb: rename isolate_hugetlb() to folio_isolate_hugetlb()"
* Use "-" vs. ":" in kerneldoc
* "mm/migrate: don't call folio_putback_active_hugetlb() on dst hugetlb
folio"
* Also care about activelist and adjust patch description
* "mm/hugetlb-cgroup: convert hugetlb_cgroup_css_offline() to work on
folios"
* Extend patch description
* "mm/hugetlb: use folio->lru int demote_free_hugetlb_folios()"
* Also use "new_folio->mapping = NULL", and calculate new_folio like
__split_huge_page_tail(), adding also a comment.
* Adjust patch description

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>

David Hildenbrand (6):
mm/huge_memory: convert has_hwpoisoned into a pure folio flag
mm/hugetlb: rename isolate_hugetlb() to folio_isolate_hugetlb()
mm/migrate: don't call folio_putback_active_hugetlb() on dst hugetlb
folio
mm/hugetlb: rename folio_putback_active_hugetlb() to
folio_putback_hugetlb()
mm/hugetlb-cgroup: convert hugetlb_cgroup_css_offline() to work on
folios
mm/hugetlb: use folio->lru int demote_free_hugetlb_folios()

include/linux/hugetlb.h | 8 +++---
include/linux/page-flags.h | 6 ++---
mm/gup.c | 2 +-
mm/huge_memory.c | 2 +-
mm/hugetlb.c | 54 +++++++++++++++++++++++++++++++++-----
mm/hugetlb_cgroup.c | 17 ++++++------
mm/mempolicy.c | 2 +-
mm/migrate.c | 20 +++++++-------
8 files changed, 74 insertions(+), 37 deletions(-)

base-commit: 0703fa3785f1b969a3a98fc9bb3e4ae5062684ea
--
2.47.1