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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 17:03:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 17:03:12 -0700
commit9030fb0bb9d607908d51f9ee02efdbe01da355ee (patch)
tree9ee1d9d47fbb4b30c7f5cbc291432e666e58967a /kernel
parent3bf03b9a0839c9fb06927ae53ebd0f960b19d408 (diff)
parent2a3c4bce3edb0d54983384aa8a88c0da330638f4 (diff)
downloadlinux-9030fb0bb9d607908d51f9ee02efdbe01da355ee.tar.bz2
Merge tag 'folio-5.18c' of git://git.infradead.org/users/willy/pagecache
Pull folio updates from Matthew Wilcox: - Rewrite how munlock works to massively reduce the contention on i_mmap_rwsem (Hugh Dickins): https://lore.kernel.org/linux-mm/8e4356d-9622-a7f0-b2c-f116b5f2efea@google.com/ - Sort out the page refcount mess for ZONE_DEVICE pages (Christoph Hellwig): https://lore.kernel.org/linux-mm/20220210072828.2930359-1-hch@lst.de/ - Convert GUP to use folios and make pincount available for order-1 pages. (Matthew Wilcox) - Convert a few more truncation functions to use folios (Matthew Wilcox) - Convert page_vma_mapped_walk to use PFNs instead of pages (Matthew Wilcox) - Convert rmap_walk to use folios (Matthew Wilcox) - Convert most of shrink_page_list() to use a folio (Matthew Wilcox) - Add support for creating large folios in readahead (Matthew Wilcox) * tag 'folio-5.18c' of git://git.infradead.org/users/willy/pagecache: (114 commits) mm/damon: minor cleanup for damon_pa_young selftests/vm/transhuge-stress: Support file-backed PMD folios mm/filemap: Support VM_HUGEPAGE for file mappings mm/readahead: Switch to page_cache_ra_order mm/readahead: Align file mappings for non-DAX mm/readahead: Add large folio readahead mm: Support arbitrary THP sizes mm: Make large folios depend on THP mm: Fix READ_ONLY_THP warning mm/filemap: Allow large folios to be added to the page cache mm: Turn can_split_huge_page() into can_split_folio() mm/vmscan: Convert pageout() to take a folio mm/vmscan: Turn page_check_references() into folio_check_references() mm/vmscan: Account large folios correctly mm/vmscan: Optimise shrink_page_list for non-PMD-sized folios mm/vmscan: Free non-shmem folios without splitting them mm/rmap: Constify the rmap_walk_control argument mm/rmap: Convert rmap_walk() to take a folio mm: Turn page_anon_vma() into folio_anon_vma() mm/rmap: Turn page_lock_anon_vma_read() into folio_lock_anon_vma_read() ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/events/uprobes.c13
-rw-r--r--kernel/futex/core.c2
2 files changed, 4 insertions, 11 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 6357c3580d07..6418083901d4 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -155,11 +155,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
struct page *old_page, struct page *new_page)
{
struct mm_struct *mm = vma->vm_mm;
- struct page_vma_mapped_walk pvmw = {
- .page = compound_head(old_page),
- .vma = vma,
- .address = addr,
- };
+ DEFINE_FOLIO_VMA_WALK(pvmw, page_folio(old_page), vma, addr, 0);
int err;
struct mmu_notifier_range range;
@@ -173,7 +169,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
return err;
}
- /* For try_to_free_swap() and munlock_vma_page() below */
+ /* For try_to_free_swap() below */
lock_page(old_page);
mmu_notifier_invalidate_range_start(&range);
@@ -201,13 +197,10 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
set_pte_at_notify(mm, addr, pvmw.pte,
mk_pte(new_page, vma->vm_page_prot));
- page_remove_rmap(old_page, false);
+ page_remove_rmap(old_page, vma, false);
if (!page_mapped(old_page))
try_to_free_swap(old_page);
page_vma_mapped_walk_done(&pvmw);
-
- if ((vma->vm_flags & VM_LOCKED) && !PageCompound(old_page))
- munlock_vma_page(old_page);
put_page(old_page);
err = 0;
diff --git a/kernel/futex/core.c b/kernel/futex/core.c
index 51dd822a8060..b22ef1efe751 100644
--- a/kernel/futex/core.c
+++ b/kernel/futex/core.c
@@ -302,7 +302,7 @@ again:
* found it, but truncated or holepunched or subjected to
* invalidate_complete_page2 before we got the page lock (also
* cases which we are happy to fail). And we hold a reference,
- * so refcount care in invalidate_complete_page's remove_mapping
+ * so refcount care in invalidate_inode_page's remove_mapping
* prevents drop_caches from setting mapping to NULL beneath us.
*
* The case we do have to guard against is when memory pressure made