Adam Litke wrote:
On Wed, 2007-03-21 at 15:18 +1100, Nick Piggin wrote:

Adam Litke wrote:

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 60e0e4a..7089323 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -98,6 +98,7 @@ struct vm_area_struct {

        /* Function pointers to deal with this struct. */
        struct vm_operations_struct * vm_ops;
+       const struct pagetable_operations_struct * pagetable_ops;

        /* Information about our backing store: */
        unsigned long vm_pgoff;         /* Offset (within vm_file) in PAGE_SIZE

Can you remind me why this isn't in vm_ops?


We didn't want to bloat the size of the vm_ops struct for all of its
users.

But vmas are surely far more numerous than vm_ops, aren't they?

--
SUSE Labs, Novell Inc.
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