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Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/mm/fault.c48
1 files changed, 14 insertions, 34 deletions
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 2672ce24d741..6a78a2d776a9 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -63,9 +63,9 @@ 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 = SEGV_MAPERR;
+ int sig, si_code = SEGV_MAPERR;
unsigned int write = 0, exec = 0, mask;
- vm_fault_t fault; /* handle_mm_fault() output */
+ vm_fault_t fault = VM_FAULT_SIGSEGV; /* handle_mm_fault() output */
unsigned int flags; /* handle_mm_fault() input */
/*
@@ -174,47 +174,27 @@ retry:
return;
}
- if (fault & VM_FAULT_OOM)
- goto out_of_memory;
- else if (fault & VM_FAULT_SIGSEGV)
- goto bad_area;
- else if (fault & VM_FAULT_SIGBUS)
- goto do_sigbus;
-
- /* no man's land */
- BUG();
-
- /*
- * Something tried to access memory that isn't in our memory map..
- * Fix it, but check if it's kernel or user first..
- */
bad_area:
up_read(&mm->mmap_sem);
if (!user_mode(regs))
goto no_context;
- tsk->thread.fault_address = address;
- force_sig_fault(SIGSEGV, si_code, (void __user *)address, tsk);
- return;
-
-out_of_memory:
- up_read(&mm->mmap_sem);
-
- if (!user_mode(regs))
- goto no_context;
-
- pagefault_out_of_memory();
- return;
-
-do_sigbus:
- up_read(&mm->mmap_sem);
+ if (fault & VM_FAULT_OOM) {
+ pagefault_out_of_memory();
+ return;
+ }
- if (!user_mode(regs))
- goto no_context;
+ if (fault & VM_FAULT_SIGBUS) {
+ sig = SIGBUS;
+ si_code = BUS_ADRERR;
+ }
+ else {
+ sig = SIGSEGV;
+ }
tsk->thread.fault_address = address;
- force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, tsk);
+ force_sig_fault(sig, si_code, (void __user *)address, tsk);
return;
no_context: