diff options
Diffstat (limited to 'arch/sh/mm/fault.c')
| -rw-r--r-- | arch/sh/mm/fault.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index e175667b1363..06e6b4952924 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -439,21 +439,9 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, } retry: - mmap_read_lock(mm); - - vma = find_vma(mm, address); + vma = lock_mm_and_find_vma(mm, address, regs); if (unlikely(!vma)) { - bad_area(regs, error_code, address); - return; - } - if (likely(vma->vm_start <= address)) - goto good_area; - if (unlikely(!(vma->vm_flags & VM_GROWSDOWN))) { - bad_area(regs, error_code, address); - return; - } - if (unlikely(expand_stack(vma, address))) { - bad_area(regs, error_code, address); + bad_area_nosemaphore(regs, error_code, address); return; } @@ -461,7 +449,6 @@ retry: * Ok, we have a good vm_area for this memory access, so * we can handle it.. */ -good_area: if (unlikely(access_error(error_code, vma))) { bad_area_access_error(regs, error_code, address); return; @@ -485,6 +472,10 @@ good_area: if (mm_fault_error(regs, error_code, address, fault)) return; + /* The fault is fully completed (including releasing mmap lock) */ + if (fault & VM_FAULT_COMPLETED) + return; + if (fault & VM_FAULT_RETRY) { flags |= FAULT_FLAG_TRIED; |