Commit 10531a52 authored by Brian Gerst's avatar Brian Gerst Committed by Christoph Hellwig

[PATCH] remove __verify_write from sh arch

It was copied from i386 and is unused.
parent 83e1ce3f
......@@ -29,58 +29,6 @@
extern void die(const char *,struct pt_regs *,long);
/*
* Ugly, ugly, but the goto's result in better assembly..
*/
int __verify_write(const void * addr, unsigned long size)
{
struct vm_area_struct * vma;
unsigned long start = (unsigned long) addr;
if (!size)
return 1;
vma = find_vma(current->mm, start);
if (!vma)
goto bad_area;
if (vma->vm_start > start)
goto check_stack;
good_area:
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;
size--;
size += start & ~PAGE_MASK;
size >>= PAGE_SHIFT;
start &= PAGE_MASK;
for (;;) {
if (handle_mm_fault(current->mm, vma, start, 1) <= 0)
goto bad_area;
if (!size)
break;
size--;
start += PAGE_SIZE;
if (start < vma->vm_end)
continue;
vma = vma->vm_next;
if (!vma || vma->vm_start != start)
goto bad_area;
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;;
}
return 1;
check_stack:
if (!(vma->vm_flags & VM_GROWSDOWN))
goto bad_area;
if (expand_stack(vma, start) == 0)
goto good_area;
bad_area:
return 0;
}
/*
* This routine handles page faults. It determines the address,
* and the problem, and then passes it off to one of the appropriate
......
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