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Message-ID: <2d872cef-7787-a7ca-10e-9d45a64c80b4@google.com>
Date: Mon, 25 Sep 2023 01:17:51 -0700 (PDT)
From: Hugh Dickins <hughd@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
cc: Andi Kleen <ak@...ux.intel.com>, Christoph Lameter <cl@...ux.com>,
Matthew Wilcox <willy@...radead.org>,
Mike Kravetz <mike.kravetz@...cle.com>,
David Hildenbrand <david@...hat.com>,
Suren Baghdasaryan <surenb@...gle.com>,
Yang Shi <shy828301@...il.com>,
Sidhartha Kumar <sidhartha.kumar@...cle.com>,
Vishal Moola <vishal.moola@...il.com>,
Kefeng Wang <wangkefeng.wang@...wei.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Tejun Heo <tj@...nel.org>,
Mel Gorman <mgorman@...hsingularity.net>,
Michal Hocko <mhocko@...e.com>, linux-kernel@...r.kernel.org,
linux-mm@...ck.org
Subject: [PATCH 00/12] mempolicy: cleanups leading to NUMA mpol without vma
Here is a series of patches based on v6.6-rc3: mostly cleanups in
mm/mempolicy.c, but finally removing the pseudo-vma from shmem folio
allocation, and removing the mmap_lock around folio migration for
mbind and migrate_pages syscalls.
Applies cleanly to any v6.6-rc so far, but not quite to mm-unstable or
linux-next: a couple of rejects in mm/mempolicy.c (clashing with the
vma_start_write() in do_mbind() and the foliation in mpol_misplaced())
and in mm/swap_state.c (clashing with zswap mods). Adjustments will
also be needed if hugetlb page->index changes to PAGE_SIZE: interleave
has to co-operate with that. After some review, a v2 will probably be
issued, based then on mm-unstable.
01/12 hugetlbfs: drop shared NUMA mempolicy pretence
02/12 kernfs: drop shared NUMA mempolicy hooks
03/12 mempolicy: fix migrate_pages(2) syscall return
04/12 mempolicy trivia: delete those ancient pr_debug()s
05/12 mempolicy trivia: slightly more consistent naming
06/12 mempolicy trivia: use pgoff_t in shared mempolicy tree
07/12 mempolicy: mpol_shared_policy_init() without pseudo-vma
08/12 mempolicy: remove confusing MPOL_MF_LAZY dead code
09/12 mm: add page_rmappable_folio() wrapper
10/12 mempolicy: alloc_pages_mpol() for NUMA policy without vma
11/12 mempolicy: mmap_lock is not needed while migrating folios
12/12 mempolicy: migration attempt to match interleave nodes
fs/hugetlbfs/inode.c | 41 +-
fs/kernfs/file.c | 49 --
fs/proc/task_mmu.c | 5 +-
include/linux/gfp.h | 10 +-
include/linux/huge_mm.h | 13 +
include/linux/hugetlb.h | 11 -
include/linux/mempolicy.h | 36 +-
include/linux/mm.h | 2 +-
include/uapi/linux/mempolicy.h | 2 +-
ipc/shm.c | 21 +-
mm/hugetlb.c | 38 +-
mm/mempolicy.c | 952 ++++++++++++++++-------------------
mm/page_alloc.c | 8 +-
mm/shmem.c | 102 ++--
mm/swap.h | 9 +-
mm/swap_state.c | 86 ++--
16 files changed, 617 insertions(+), 768 deletions(-)
Hugh
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