diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-12-30 08:10:51 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-30 08:10:51 +0100 |
| commit | 28336be568bb473d16ba80db0801276fb4f1bbe5 (patch) | |
| tree | cf2d7a56e6c3ea08139d8d9a5a58b296bd172136 /arch/arc/mm/fault.c | |
| parent | 5cbaefe9743bf14c9d3106db0cc19f8cb0a3ca22 (diff) | |
| parent | fd6988496e79a6a4bdb514a4655d2920209eb85d (diff) | |
| download | linux-28336be568bb473d16ba80db0801276fb4f1bbe5.tar.gz linux-28336be568bb473d16ba80db0801276fb4f1bbe5.tar.bz2 linux-28336be568bb473d16ba80db0801276fb4f1bbe5.zip | |
Merge tag 'v5.5-rc4' into locking/kcsan, to resolve conflicts
Conflicts:
init/main.c
lib/Kconfig.debug
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arc/mm/fault.c')
| -rw-r--r-- | arch/arc/mm/fault.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index 3861543b66a0..fb86bc3e9b35 100644 --- a/arch/arc/mm/fault.c +++ b/arch/arc/mm/fault.c @@ -30,6 +30,7 @@ noinline static int handle_kernel_vaddr_fault(unsigned long address) * with the 'reference' page table. */ pgd_t *pgd, *pgd_k; + p4d_t *p4d, *p4d_k; pud_t *pud, *pud_k; pmd_t *pmd, *pmd_k; @@ -39,8 +40,13 @@ noinline static int handle_kernel_vaddr_fault(unsigned long address) if (!pgd_present(*pgd_k)) goto bad_area; - pud = pud_offset(pgd, address); - pud_k = pud_offset(pgd_k, address); + p4d = p4d_offset(pgd, address); + p4d_k = p4d_offset(pgd_k, address); + if (!p4d_present(*p4d_k)) + goto bad_area; + + pud = pud_offset(p4d, address); + pud_k = pud_offset(p4d_k, address); if (!pud_present(*pud_k)) goto bad_area; |