[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>

diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c
index 82a7c9b..e0198da 100644 (file)
--- a/arch/x86_64/kernel/pci-gart.c
+++ b/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);