Rik van Riel wrote:
>
> On Wed, 21 Nov 2001, george anzinger wrote:
> > Alan Cox wrote:
> > >
> > > > size chuncks. Currently I am using kmalloc() to allocate a page at a
> > > > time. I don't want to have to worry about mapping/unmapping etc. I
> > >
> > > Use get_free_page() to get page sized chunks
> >
> > What about __get_free_page() ? I don't need or want the clear page
> > (performance issues).
>
> get_free_page() doesn't clear the page afaics.
>
In mm.h (2.4.13 kernel)....
#define __get_free_page(gfp_mask) \
__get_free_pages((gfp_mask),0)
#define __get_dma_pages(gfp_mask, order) \
__get_free_pages((gfp_mask) | GFP_DMA,(order))
/*
* The old interface name will be removed in 2.5:
*/
#define get_free_page get_zeroed_page
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Where as __get_free_page() does not zero. I know this is an old kernel,
but...
What am I missing?
-- George george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Real time sched: http://sourceforge.net/projects/rtsched/ - 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/
This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:28 EST