[PATCH] x86_64: iommu_gart_bitmap search to cross next_bit

Allow search for a contiguous block of iommu space to cross the next_bit
marker if we have already committed ourselves to flushing the gart.

There shouldn't be any reason why we'd restrict the search.
Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/x86_64/kernel/pci-gart.c

@@ -93,7 +93,7 @@ static unsigned long alloc_iommu(int size)
 	offset = find_next_zero_string(iommu_gart_bitmap,next_bit,iommu_pages,size);
 	if (offset == -1) {
 		need_flush = 1;
-	       	offset = find_next_zero_string(iommu_gart_bitmap,0,next_bit,size);
+		offset = find_next_zero_string(iommu_gart_bitmap,0,iommu_pages,size);
 	}
 	if (offset != -1) { 
 		set_bit_string(iommu_gart_bitmap, offset, size);