On Fri, 28 Dec 2007 13:05:39 +0530
Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote:
> FUJITA Tomonori wrote:
> [snip]
> > Thanks,
> >
> > Can you try this?
> >
> >
> > diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
> > index e7d8544..495575a 100644
> > --- a/lib/iommu-helper.c
> > +++ b/lib/iommu-helper.c
> > @@ -8,15 +8,20 @@
> > static unsigned long find_next_zero_area(unsigned long *map,
> > unsigned long size,
> > unsigned long start,
> > - unsigned int nr)
> > + unsigned int nr,
> > + unsigned long align_mask)
> > {
> > unsigned long index, end, i;
> > again:
> > index = find_next_zero_bit(map, size, start);
> > +
> > + /* Align allocation */
> > + index = (index + align_mask) & ~align_mask;
> > +
> > end = index + nr;
> > - if (end > size)
> > + if (end >= size)
> > return -1;
> > - for (i = index + 1; i < end; i++) {
> > + for (i = index; i < end; i++) {
> > if (test_bit(i, map)) {
> > start = i+1;
> > goto again;
> > @@ -50,9 +55,8 @@ unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
> > {
> > unsigned long index;
> > again:
> > - index = find_next_zero_area(map, size, start, nr);
> > + index = find_next_zero_area(map, size, start, nr, align_mask);
> > if (index != -1) {
> > - index = (index + align_mask) & ~align_mask;
> > if (is_span_boundary(index, nr, shift, boundary_size)) {
> > /* we could do more effectively */
> > start = index + 1;
>
> This on top of -mm? Or on top of the reverted iommu patch.
Oops, it's for -mm.
Thanks,
-
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