+ mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch added to -mm tree

+ mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: sparc32: add stub pud_page define for walking huge vmalloc page tables
has been added to the -mm tree.  Its filename is
     mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch

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------------------------------------------------------
From: Nicholas Piggin <npiggin@gmail.com>
Subject: sparc32: add stub pud_page define for walking huge vmalloc page tables

Similarly to the stub p4d_page in sparc64, add a stub pud_page, this
is needed for hugepages in the vmap page tables to be walked without
ifdefs, which should be no functional change for sparc32.

Link: https://lkml.kernel.org/r/20210324232825.1157363-1-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/sparc/include/asm/pgtable_32.h |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/sparc/include/asm/pgtable_32.h~mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix
+++ a/arch/sparc/include/asm/pgtable_32.h
@@ -321,6 +321,9 @@ static inline pte_t pte_modify(pte_t pte
 		pgprot_val(newprot));
 }
 
+/* only used by the huge vmap code, should never be called */
+#define pud_page(pud)			NULL
+
 struct seq_file;
 void mmu_info(struct seq_file *m);
 
_

Patches currently in -mm which might be from npiggin@gmail.com are

arm-mm-add-missing-pud_page-define-to-2-level-page-tables.patch
mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page.patch
mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch
mm-apply_to_pte_range-warn-and-fail-if-a-large-pte-is-encountered.patch
mm-vmalloc-rename-vmap__range-vmap_pages__range.patch
mm-ioremap-rename-ioremap__range-to-vmap__range.patch
mm-huge_vmap-arch-support-cleanup.patch
powerpc-inline-huge-vmap-supported-functions.patch
arm64-inline-huge-vmap-supported-functions.patch
x86-inline-huge-vmap-supported-functions.patch
mm-vmalloc-provide-fallback-arch-huge-vmap-support-functions.patch
mm-move-vmap_range-from-mm-ioremapc-to-mm-vmallocc.patch
mm-vmalloc-add-vmap_range_noflush-variant.patch
mm-vmalloc-hugepage-vmalloc-mappings.patch
powerpc-64s-radix-enable-huge-vmalloc-mappings.patch