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 <igor.stoppa@xxxxxxxxxx> Reviewed-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx> Regardless of the fate of the rest of this patchset, this makes sense and we should have this.
