AcoSail/kernel_optimize_test
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ARC: mm: do_page_fault refactor #1: remove label @good_area

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Invert the condition for stack expansion.
No functional change

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2019-05-14 14:22:47 -07:00
parent 6fbc7275c7
commit 450e5b6f65
1 changed files with 5 additions and 7 deletions
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12
arch/arc/mm/fault.c
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@ -97,21 +97,19 @@ void do_page_fault(unsigned long address, struct pt_regs *regs)
flags |= FAULT_FLAG_USER;
retry:
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
if (!vma)
goto bad_area;
if (vma->vm_start <= address)
goto good_area;
if (!(vma->vm_flags & VM_GROWSDOWN))
goto bad_area;
if (expand_stack(vma, address))
goto bad_area;
if (unlikely(address < vma->vm_start)) {
if (!(vma->vm_flags & VM_GROWSDOWN) || expand_stack(vma, address))
goto bad_area;
}
/*
* Ok, we have a good vm_area for this memory access, so
* we can handle it..
*/
good_area:
si_code = SEGV_ACCERR;
/* Handle protection violation, execute on heap or stack */