riscv/mm/fault: Set FAULT_FLAG_INSTRUCTION flag in do_page_fault()
If the page fault "cause" is EXC_INST_PAGE_FAULT, set the FAULT_FLAG_INSTRUCTION flag to let handle_mm_fault() and friends know about it. This has no functional changes because RISC-V uses the default arch_vma_access_permitted() implementation, which always returns true. However, dax_pmd_fault(), for example, has a tracepoint that uses FAULT_FLAG_INSTRUCTION, so we might as well set it. Signed-off-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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a960c13237
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@ -234,7 +234,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs)
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if (cause == EXC_STORE_PAGE_FAULT)
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flags |= FAULT_FLAG_WRITE;
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else if (cause == EXC_INST_PAGE_FAULT)
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flags |= FAULT_FLAG_INSTRUCTION;
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retry:
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mmap_read_lock(mm);
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vma = find_vma(mm, addr);
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