diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-12-25 10:41:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-25 10:41:37 +0100 |
| commit | 1e5f8a308551b9816588e12bb795aeadebe37c4a (patch) | |
| tree | bd71fc796fed24a3b7cc99df4a1d1bdaecc2b387 /arch/um/kernel/skas/mmu.c | |
| parent | stop_machine: remove try_stop_cpus helper (diff) | |
| parent | Linux 5.5-rc3 (diff) | |
| download | linux-1e5f8a308551b9816588e12bb795aeadebe37c4a.tar.xz linux-1e5f8a308551b9816588e12bb795aeadebe37c4a.zip | |
Merge tag 'v5.5-rc3' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/um/kernel/skas/mmu.c')
| -rw-r--r-- | arch/um/kernel/skas/mmu.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index b5e3d91fc9c2..3f0d9a573fd6 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c @@ -19,15 +19,21 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc, unsigned long kernel) { pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *pte; pgd = pgd_offset(mm, proc); - pud = pud_alloc(mm, pgd, proc); - if (!pud) + + p4d = p4d_alloc(mm, pgd, proc); + if (!p4d) goto out; + pud = pud_alloc(mm, p4d, proc); + if (!pud) + goto out_pud; + pmd = pmd_alloc(mm, pud, proc); if (!pmd) goto out_pmd; @@ -44,6 +50,8 @@ static int init_stub_pte(struct mm_struct *mm, unsigned long proc, pmd_free(mm, pmd); out_pmd: pud_free(mm, pud); + out_pud: + p4d_free(mm, p4d); out: return -ENOMEM; } |