setup vma->vm_page_prot by vm_get_page_prot()
This patch uses vm_get_page_prot() to setup vma->vm_page_prot. Though inside vm_get_page_prot() the protection flags is AND with (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED), it does not hurt correct code. Signed-off-by: Coly Li <coyli@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@@ -234,7 +234,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
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vma->vm_start = vma->vm_end - PAGE_SIZE;
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vma->vm_flags = VM_STACK_FLAGS;
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vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
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vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
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err = insert_vm_struct(mm, vma);
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if (err) {
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up_write(&mm->mmap_sem);
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