The patch titled
Subject: mm-pagewalk-allow-walking-without-vma-fix
has been added to the -mm tree. Its filename is
mm-pagewalk-allow-walking-without-vma-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-pagewalk-allow-walking-without-vma-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-pagewalk-allow-walking-without-vma-fix.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Steven Price <steven.price@xxxxxxx>
Subject: mm-pagewalk-allow-walking-without-vma-fix
fix boot crash
Reported-by: Qian Cai <cai@xxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/pagewalk.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/pagewalk.c~mm-pagewalk-allow-walking-without-vma-fix
+++ a/mm/pagewalk.c
@@ -65,7 +65,7 @@ again:
split_huge_pmd(walk->vma, pmd, addr);
if (pmd_trans_unstable(pmd))
goto again;
- } else if (pmd_leaf(*pmd)) {
+ } else if (pmd_leaf(*pmd) || !pmd_present(*pmd)) {
continue;
}
@@ -107,7 +107,7 @@ static int walk_pud_range(p4d_t *p4d, un
split_huge_pud(walk->vma, pud, addr);
if (pud_none(*pud))
goto again;
- } else if (pud_leaf(*pud)) {
+ } else if (pud_leaf(*pud) || !pud_present(*pud)) {
continue;
}
_
Patches currently in -mm which might be from steven.price@xxxxxxx are
mm-add-generic-pd_leaf-macros.patch
arc-mm-add-pd_leaf-definitions.patch
arm-mm-add-pd_leaf-definitions.patch
arm64-mm-add-pd_leaf-definitions.patch
mips-mm-add-pd_leaf-definitions.patch
powerpc-mm-add-pd_leaf-definitions.patch
riscv-mm-add-pd_leaf-definitions.patch
s390-mm-add-pd_leaf-definitions.patch
sparc-mm-add-pd_leaf-definitions.patch
x86-mm-add-pd_leaf-definitions.patch
mm-pagewalk-add-p4d_entry-and-pgd_entry.patch
mm-pagewalk-allow-walking-without-vma.patch
mm-pagewalk-allow-walking-without-vma-v15.patch
mm-pagewalk-allow-walking-without-vma-fix.patch
mm-pagewalk-add-test_pd-callbacks.patch
mm-pagewalk-add-depth-parameter-to-pte_hole.patch
x86-mm-point-to-struct-seq_file-from-struct-pg_state.patch
x86-mmefi-convert-ptdump_walk_pgd_level-to-take-a-mm_struct.patch
x86-mm-convert-ptdump_walk_pgd_level_debugfs-to-take-an-mm_struct.patch
x86-mm-convert-ptdump_walk_pgd_level_core-to-take-an-mm_struct.patch
mm-add-generic-ptdump.patch
mm-add-generic-ptdump-v15.patch
x86-mm-convert-dump_pagetables-to-use-walk_page_range.patch
arm64-mm-convert-mm-dumpc-to-use-walk_page_range.patch
arm64-mm-display-non-present-entries-in-ptdump.patch
mm-ptdump-reduce-level-numbers-by-1-in-note_page.patch
