The patch titled Subject: mm: convert soft_offline_in_use_page() to use a folio has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-convert-soft_offline_in_use_page-to-use-a-folio.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: "Matthew Wilcox (Oracle)" willy@infradead.org Subject: mm: convert soft_offline_in_use_page() to use a folio Date: Wed, 8 Nov 2023 18:28:07 +0000

Replace the existing head-page logic with folio logic.

Link: https://lkml.kernel.org/r/20231108182809.602073-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) willy@infradead.org Cc: stable@vger.kernel.org Cc: Naoya Horiguchi naoya.horiguchi@nec.com Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

mm/memory-failure.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)

--- a/mm/memory-failure.c~mm-convert-soft_offline_in_use_page-to-use-a-folio +++ a/mm/memory-failure.c @@ -2645,40 +2645,40 @@ static int soft_offline_in_use_page(stru { long ret = 0; unsigned long pfn = page_to_pfn(page); - struct page *hpage = compound_head(page); + struct folio *folio = page_folio(page); char const *msg_page[] = {"page", "hugepage"}; - bool huge = PageHuge(page); + bool huge = folio_test_hugetlb(folio); LIST_HEAD(pagelist); struct migration_target_control mtc = { .nid = NUMA_NO_NODE, .gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL, };

- if (!huge && PageTransHuge(hpage)) { + if (!huge && folio_test_large(folio)) { if (try_to_split_thp_page(page)) { pr_info("soft offline: %#lx: thp split failed\n", pfn); return -EBUSY; } - hpage = page; + folio = page_folio(page); }

- lock_page(page); + folio_lock(folio); if (!huge) - wait_on_page_writeback(page); + folio_wait_writeback(folio); if (PageHWPoison(page)) { - unlock_page(page); - put_page(page); + folio_unlock(folio); + folio_put(folio); pr_info("soft offline: %#lx page already poisoned\n", pfn); return 0; }

- if (!huge && PageLRU(page) && !PageSwapCache(page)) + if (!huge && folio_test_lru(folio) && !folio_test_swapcache(folio)) /* * Try to invalidate first. This should work for * non dirty unmapped page cache pages. */ - ret = invalidate_inode_page(page); - unlock_page(page); + ret = mapping_evict_folio(folio_mapping(folio), folio); + folio_unlock(folio);

if (ret) { pr_info("soft_offline: %#lx: invalidated\n", pfn); @@ -2686,7 +2686,7 @@ static int soft_offline_in_use_page(stru return 0; }

- if (isolate_page(hpage, &pagelist)) { + if (isolate_page(&folio->page, &pagelist)) { ret = migrate_pages(&pagelist, alloc_migration_target, NULL, (unsigned long)&mtc, MIGRATE_SYNC, MR_MEMORY_FAILURE, NULL); if (!ret) { _

Patches currently in -mm which might be from willy@infradead.org are

mm-make-mapping_evict_folio-the-preferred-way-to-evict-clean-folios.patch mm-convert-__do_fault-to-use-a-folio.patch mm-use-mapping_evict_folio-in-truncate_error_page.patch mm-convert-soft_offline_in_use_page-to-use-a-folio.patch mm-convert-isolate_page-to-mf_isolate_folio.patch mm-remove-invalidate_inode_page.patch