summaryrefslogtreecommitdiff
path: root/mm/memory_hotplug.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-23 03:03:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-23 03:03:12 +0300
commit9030fb0bb9d607908d51f9ee02efdbe01da355ee (patch)
tree9ee1d9d47fbb4b30c7f5cbc291432e666e58967a /mm/memory_hotplug.c
parent3bf03b9a0839c9fb06927ae53ebd0f960b19d408 (diff)
parent2a3c4bce3edb0d54983384aa8a88c0da330638f4 (diff)
downloadlinux-9030fb0bb9d607908d51f9ee02efdbe01da355ee.tar.xz
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 'mm/memory_hotplug.c')
-rw-r--r--mm/memory_hotplug.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index aee69281dad6..416b38ca8def 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1617,10 +1617,13 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
DEFAULT_RATELIMIT_BURST);
for (pfn = start_pfn; pfn < end_pfn; pfn++) {
+ struct folio *folio;
+
if (!pfn_valid(pfn))
continue;
page = pfn_to_page(pfn);
- head = compound_head(page);
+ folio = page_folio(page);
+ head = &folio->page;
if (PageHuge(page)) {
pfn = page_to_pfn(head) + compound_nr(head) - 1;
@@ -1637,10 +1640,10 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
* the unmap as the catch all safety net).
*/
if (PageHWPoison(page)) {
- if (WARN_ON(PageLRU(page)))
- isolate_lru_page(page);
- if (page_mapped(page))
- try_to_unmap(page, TTU_IGNORE_MLOCK);
+ if (WARN_ON(folio_test_lru(folio)))
+ folio_isolate_lru(folio);
+ if (folio_mapped(folio))
+ try_to_unmap(folio, TTU_IGNORE_MLOCK);
continue;
}