diff options
| author |   Nanyong Sun <sunnanyong@huawei.com> | 2021-04-30 16:28:48 +0800 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2021-05-22 10:19:38 -0700 |
| commit | 141682f5b9d658b5fba7c33cf8574329a7840cdc (patch) | |
| tree | 414c63b8c8d269007e06a0ea44e45b7eec9cbd8d /arch/riscv/include/asm/pgtable.h | |
| parent | riscv: mm: add _PAGE_LEAF macro (diff) | |
| download | linux-dev-141682f5b9d658b5fba7c33cf8574329a7840cdc.tar.xz linux-dev-141682f5b9d658b5fba7c33cf8574329a7840cdc.zip | |
riscv: mm: make pmd_bad() check leaf condition
In the definition in Documentation/vm/arch_pgtable_helpers.rst,
pmd_bad() means test a non-table mapped PMD, so it should also
return true when it is a leaf page.
Signed-off-by: Nanyong Sun <sunnanyong@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/include/asm/pgtable.h')
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index dbced7d37768..b06eb8394e4e 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -184,7 +184,7 @@ static inline int pmd_none(pmd_t pmd) static inline int pmd_bad(pmd_t pmd) { - return !pmd_present(pmd); + return !pmd_present(pmd) || (pmd_val(pmd) & _PAGE_LEAF); } #define pmd_leaf pmd_leaf |