The quilt patch titled Subject: mm: allow can_split_folio() to be called when THP are disabled has been removed from the -mm tree. Its filename was mm-allow-can_split_folio-to-be-called-when-thp-are-disabled.patch This patch was dropped because it was merged into the mm-stable branch\nof git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> Subject: mm: allow can_split_folio() to be called when THP are disabled The call to can_split_folio() in vmscan is currently guarded by a test of PageTransHuge() so the BUILD_BUG() is eliminated if THP are disabled. The next patch replaces that test with folio_test_large() which may be true, even when THP are disabled. However, if THP are disabled, we cannot split, so an unconditional return of false is appropriate. Link: https://lkml.kernel.org/r/20220504182857.4013401-15-willy@xxxxxxxxxxxxx Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/huge_mm.h | 1 - 1 file changed, 1 deletion(-) --- a/include/linux/huge_mm.h~mm-allow-can_split_folio-to-be-called-when-thp-are-disabled +++ a/include/linux/huge_mm.h @@ -348,7 +348,6 @@ static inline void prep_transhuge_page(s static inline bool can_split_folio(struct folio *folio, int *pextra_pins) { - BUILD_BUG(); return false; } static inline int _ Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are mm-add-vma-iterator.patch mmap-use-the-vma-iterator-in-count_vma_pages_range.patch proc-remove-vma-rbtree-use-from-nommu.patch arm64-remove-mmap-linked-list-from-vdso.patch parisc-remove-mmap-linked-list-from-cache-handling.patch powerpc-remove-mmap-linked-list-walks.patch s390-remove-vma-linked-list-walks.patch x86-remove-vma-linked-list-walks.patch xtensa-remove-vma-linked-list-walks.patch cxl-remove-vma-linked-list-walk.patch optee-remove-vma-linked-list-walk.patch um-remove-vma-linked-list-walk.patch coredump-remove-vma-linked-list-walk.patch exec-use-vma-iterator-instead-of-linked-list.patch fs-proc-task_mmu-stop-using-linked-list-and-highest_vm_end.patch acct-use-vma-iterator-instead-of-linked-list.patch perf-use-vma-iterator.patch sched-use-maple-tree-iterator-to-walk-vmas.patch fork-use-vma-iterator.patch mm-khugepaged-stop-using-vma-linked-list.patch mm-ksm-use-vma-iterators-instead-of-vma-linked-list.patch mm-mlock-use-vma-iterator-and-maple-state-instead-of-vma-linked-list.patch mm-pagewalk-use-vma_find-instead-of-vma-linked-list.patch i915-use-the-vma-iterator.patch nommu-remove-uses-of-vma-linked-list.patch