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| author |   Alexandre Ghiti <alexandre.ghiti@canonical.com> | 2021-11-18 14:45:39 +0100 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2022-01-05 19:22:13 -0800 |
| commit | 7cc8c75b54fa6d2c0a802b915feecad3abe6ddd7 (patch) | |
| tree | 6c817ec110ed1dac02002bc2a5e38dfca441af42 | |
| parent | riscv: switch to relative extable and other improvements (diff) | |
| download | linux-dev-7cc8c75b54fa6d2c0a802b915feecad3abe6ddd7.tar.xz linux-dev-7cc8c75b54fa6d2c0a802b915feecad3abe6ddd7.zip | |
riscv: Make vmalloc/vmemmap end equal to the start of the next region
We used to define VMALLOC_END equal to the start of the next region
*minus one* which is inconsistent with the use of this define in the
core code (for example, see the definitions of VMALLOC_TOTAL and
is_vmalloc_addr).
And then make the definition of VMEMMAP_END consistent with VMALLOC_END
and all other regions actually.
Signed-off-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 4 | ||||
| -rw-r--r-- | arch/riscv/mm/fault.c | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index bf204e7c1f74..db3f73931af6 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -25,7 +25,7 @@ #endif #define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) -#define VMALLOC_END (PAGE_OFFSET - 1) +#define VMALLOC_END PAGE_OFFSET #define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) #define BPF_JIT_REGION_SIZE (SZ_128M) @@ -51,7 +51,7 @@ #define VMEMMAP_SHIFT \ (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT) #define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT) -#define VMEMMAP_END (VMALLOC_START - 1) +#define VMEMMAP_END VMALLOC_START #define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) /* diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c index aa08dd2f8fae..41ae0aa8f2b8 100644 --- a/arch/riscv/mm/fault.c +++ b/arch/riscv/mm/fault.c @@ -235,7 +235,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs) * only copy the information from the master page table, * nothing more. */ - if (unlikely((addr >= VMALLOC_START) && (addr <= VMALLOC_END))) { + if (unlikely((addr >= VMALLOC_START) && (addr < VMALLOC_END))) { vmalloc_fault(regs, code, addr); return; } |