Re: [PATCH 4/8] struct page: add field for vm_struct

2018-03-15 Thread J Freyensee



On 3/15/18 2:38 AM, Igor Stoppa wrote:

On 14/03/18 19:43, J Freyensee wrote:

On 3/13/18 3:00 PM, Matthew Wilcox wrote:

[...]


Signed-off-by: Igor Stoppa 

Reviewed-by: Matthew Wilcox 

Igor, do you mind sticking these tags on the files that have spent some
time reviewing a revision of your patchset (like the Reviewed-by: tags I
provided last revision?)

Apologies, that was not intentional, I forgot it.
I will do it, although most of the files will now change so much that I
am not sure what will survive, beside this patch, in the form that you
reviewed.

I suppose the Review-by tag drops, if the patch changes.


That's true, if so much of the patch changes it basically looks like 
something different, the Reviewed-by: would drop.


Jay



--
igor




Re: [PATCH 4/8] struct page: add field for vm_struct

2018-03-15 Thread Igor Stoppa
On 14/03/18 19:43, J Freyensee wrote:
> On 3/13/18 3:00 PM, Matthew Wilcox wrote:

[...]

>>> Signed-off-by: Igor Stoppa 
>> Reviewed-by: Matthew Wilcox 
> 
> Igor, do you mind sticking these tags on the files that have spent some 
> time reviewing a revision of your patchset (like the Reviewed-by: tags I 
> provided last revision?)

Apologies, that was not intentional, I forgot it.
I will do it, although most of the files will now change so much that I
am not sure what will survive, beside this patch, in the form that you
reviewed.

I suppose the Review-by tag drops, if the patch changes.

--
igor


Re: [PATCH 4/8] struct page: add field for vm_struct

2018-03-14 Thread J Freyensee



On 3/13/18 3:00 PM, Matthew Wilcox wrote:

On Tue, Mar 13, 2018 at 11:45:50PM +0200, Igor Stoppa wrote:

When a page is used for virtual memory, it is often necessary to obtain
a handler to the corresponding vm_struct, which refers to the virtually
continuous area generated when invoking vmalloc.

The struct page has a "mapping" field, which can be re-used, to store a
pointer to the parent area.

This will avoid more expensive searches, later on.

Signed-off-by: Igor Stoppa 

Reviewed-by: Matthew Wilcox 


Igor, do you mind sticking these tags on the files that have spent some 
time reviewing a revision of your patchset (like the Reviewed-by: tags I 
provided last revision?)


Thanks,
Jay




Re: [PATCH 4/8] struct page: add field for vm_struct

2018-03-13 Thread Matthew Wilcox
On Tue, Mar 13, 2018 at 11:45:50PM +0200, Igor Stoppa wrote:
> When a page is used for virtual memory, it is often necessary to obtain
> a handler to the corresponding vm_struct, which refers to the virtually
> continuous area generated when invoking vmalloc.
> 
> The struct page has a "mapping" field, which can be re-used, to store a
> pointer to the parent area.
> 
> This will avoid more expensive searches, later on.
> 
> Signed-off-by: Igor Stoppa 

Reviewed-by: Matthew Wilcox 

Regardless of the fate of the rest of this patchset, this makes sense
and we should have this.