The patch titled
Subject: parisc/hugetlb: use pgtable-nopXd instead of 4level-fixup
has been added to the -mm tree. Its filename is
parisc-hugetlb-use-pgtable-nopxd-instead-of-4level-fixup.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/parisc-hugetlb-use-pgtable-nopxd-instead-of-4level-fixup.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/parisc-hugetlb-use-pgtable-nopxd-instead-of-4level-fixup.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: Helge Deller <deller@xxxxxx>
Subject: parisc/hugetlb: use pgtable-nopXd instead of 4level-fixup
Link: http://lkml.kernel.org/r/1572938135-31886-10-git-send-email-rppt@xxxxxxxxxx
Signed-off-by: Helge Deller <deller@xxxxxx>
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Anatoly Pugachev <matorola@xxxxxxxxx>
Cc: Anton Ivanov <anton.ivanov@xxxxxxxxxxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Greentime Hu <green.hu@xxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: Mark Salter <msalter@xxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Peter Rosin <peda@xxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Rolf Eike Beer <eike-kernel@xxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Cc: Sam Creasey <sammy@xxxxxxxxx>
Cc: Vincent Chen <deanbo422@xxxxxxxxx>
Cc: Vineet Gupta <Vineet.Gupta1@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/parisc/mm/hugetlbpage.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
--- a/arch/parisc/mm/hugetlbpage.c~parisc-hugetlb-use-pgtable-nopxd-instead-of-4level-fixup
+++ a/arch/parisc/mm/hugetlbpage.c
@@ -49,6 +49,7 @@ pte_t *huge_pte_alloc(struct mm_struct *
unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte = NULL;
@@ -61,7 +62,8 @@ pte_t *huge_pte_alloc(struct mm_struct *
addr &= HPAGE_MASK;
pgd = pgd_offset(mm, addr);
- pud = pud_alloc(mm, pgd, addr);
+ p4d = p4d_offset(pgd, addr);
+ pud = pud_alloc(mm, p4d, addr);
if (pud) {
pmd = pmd_alloc(mm, pud, addr);
if (pmd)
@@ -74,6 +76,7 @@ pte_t *huge_pte_offset(struct mm_struct
unsigned long addr, unsigned long sz)
{
pgd_t *pgd;
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte = NULL;
@@ -82,11 +85,14 @@ pte_t *huge_pte_offset(struct mm_struct
pgd = pgd_offset(mm, addr);
if (!pgd_none(*pgd)) {
- pud = pud_offset(pgd, addr);
- if (!pud_none(*pud)) {
- pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd))
- pte = pte_offset_map(pmd, addr);
+ p4d = p4d_offset(pgd, addr);
+ if (!p4d_none(*p4d)) {
+ pud = pud_offset(p4d, addr);
+ if (!pud_none(*pud)) {
+ pmd = pmd_offset(pud, addr);
+ if (!pmd_none(*pmd))
+ pte = pte_offset_map(pmd, addr);
+ }
}
}
return pte;
_
Patches currently in -mm which might be from deller@xxxxxx are
parisc-hugetlb-use-pgtable-nopxd-instead-of-4level-fixup.patch
