Re: [PATCH][2.4] update ref counts on all allocated pages

From: David S. Miller (davem@redhat.com)
Date: Wed Nov 27 2002 - 05:31:31 EST


On Tue, 2002-11-26 at 16:07, Matt Porter wrote:
> The following patch sets the ref count on all pages of an
> allocation. This allows an allocation with order>0 to be freed
> via individual __free_page() calls within vfree().

If your pci_alloc_consistent implementation is doing something
strang, _it_ should be doing the per-page reference counts.

Don't make every caller eat this overhead.

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