diff options
| author | Ingo Molnar <mingo@kernel.org> | 2019-06-17 12:29:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-17 12:29:16 +0200 |
| commit | bddb3636737f658886a0a02b64db5366bba3428e (patch) | |
| tree | 8f7ffcb42803fa0bb3378ef969545e4a5e57262c /arch/arc/mm/fault.c | |
| parent | 3384c78631dd722c2cdc5c57fbdd39fc1b5a9f2d (diff) | |
| parent | cbb99c0f588737ec98c333558922ce47e9a95827 (diff) | |
Merge branch 'x86/cpu' into perf/core, to pick up dependent changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arc/mm/fault.c')
| -rw-r--r-- | arch/arc/mm/fault.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index 8df1638259f3..6836095251ed 100644 --- a/arch/arc/mm/fault.c +++ b/arch/arc/mm/fault.c @@ -66,7 +66,7 @@ void do_page_fault(unsigned long address, struct pt_regs *regs) struct vm_area_struct *vma = NULL; struct task_struct *tsk = current; struct mm_struct *mm = tsk->mm; - int si_code = 0; + int si_code = SEGV_MAPERR; int ret; vm_fault_t fault; int write = regs->ecr_cause & ECR_C_PROTV_STORE; /* ST/EX */ @@ -81,16 +81,14 @@ void do_page_fault(unsigned long address, struct pt_regs *regs) * only copy the information from the master page table, * nothing more. */ - if (address >= VMALLOC_START) { + if (address >= VMALLOC_START && !user_mode(regs)) { ret = handle_kernel_vaddr_fault(address); if (unlikely(ret)) - goto bad_area_nosemaphore; + goto no_context; else return; } - si_code = SEGV_MAPERR; - /* * If we're in an interrupt or have no user * context, we must not take the fault.. @@ -198,7 +196,6 @@ good_area: bad_area: up_read(&mm->mmap_sem); -bad_area_nosemaphore: /* User mode accesses just cause a SIGSEGV */ if (user_mode(regs)) { tsk->thread.fault_address = address; |