summaryrefslogtreecommitdiffstats
path: root/arch/arc
diff options
context:
space:
mode:
authorVineet Gupta <vgupta@synopsys.com>2019-05-14 14:22:47 -0700
committerVineet Gupta <vgupta@synopsys.com>2019-07-01 11:02:22 -0700
commit450e5b6f654b52bd7495e84cd46dd37d7e184415 (patch)
tree2f2907e4ff131fc507a19c7284603c1a48e06d57 /arch/arc
parent6fbc7275c7a9ba97877050335f290341a1fd8dbf (diff)
downloadlinux-450e5b6f654b52bd7495e84cd46dd37d7e184415.tar.bz2
ARC: mm: do_page_fault refactor #1: remove label @good_area
Invert the condition for stack expansion. No functional change Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/mm/fault.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 8cca03480bb2..be8ea91fcc8b 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -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 */