Hello,
On Wednesday, May 30, 2012 2:11 AM KOSAKI Motohiro wrote:
> > static void *
> > __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot,
> > const void *caller)
> > {
> > - struct arm_vmregion *c;
> > - size_t align;
> > - int bit;
> > + struct vm_struct *area;
> > + unsigned long addr;
> >
> > - if (!consistent_pte) {
> > - printk(KERN_ERR "%s: not initialised\n", __func__);
> > + area = get_vm_area_caller(size, VM_DMA | VM_USERMAP, caller);
>
> In this patch, VM_DMA is only used here. So, is this no effect?
I introduced it mainly to let user know which areas have been allocated by the dma-mapping api.
I also plan to add a check suggested by Minchan Kim in __dma_free_remap() if the vmalloc area
have been in fact allocated with VM_DMA set.
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>