Re: [PATCH] include all vmas with unbacked pages in ELF core dumps

[Linus Torvalds]

On Thu, 21 Oct 2004, Hugh Dickins wrote:
> 
> 	if (!vma->anon_vma)
> 		return 0;

Ok. So the end result ends up pretty simple:

	static int maydump(struct vm_area_struct *vma)
	{
	        /* Do not dump I/O mapped devices, shared memory, or special mappings */        
	        if (vma->vm_flags & (VM_IO | VM_SHARED | VM_RESERVED))
	                return 0;

	        /* If it hasn't been written to, don't write it out */
	        if (!vma->anon_vma)
	                return 0;

	        return 1;
	}

does this make everybody happy?

Do the core-files blow up a lot from this? Or does it miss some case?

		Linus
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