lkml.org 
[lkml]   [2007]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros.
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.
Send instant messages to your online friends http://au.messenger.yahoo.com

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-03-22 00:05    [from the cache]
©2003-2011 Jasper Spaans