Re: fix iounmap and a pageattr memleak (x86 and x86-64)

[Andrea Arcangeli]

On Tue, Nov 02, 2004 at 06:48:09PM -0800, Dave Hansen wrote:
> It should be enough, but I don't think we want to waste a bitflag for 
> something that's only needed for debugging anyway.  They're getting 
> precious these days.  Might as well just bloat the kernel some more when 
> the alloc debugging is on.

You can leave the bitflag the end (number 31) under the #ifdef. Using
the bitflag is less likely to create an heisenbug (due different layout
of the ram ;).

> I'll see what I can do to get some backtraces of the __pg_prot(0) &&
> page->mapped cases.

thanks!
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