In order to make use of vma_interval_tree_foreach() from a module we need to export the first and next interators. vfio code would like to use this foreach helper to create a remapping helper, essentially the reverse of unmap_mapping_range() for specific vmas mapping vfio device memory. Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: linux-mm@xxxxxxxxx Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> --- mm/interval_tree.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/interval_tree.c b/mm/interval_tree.c index 32e390c42c53..faa50767496c 100644 --- a/mm/interval_tree.c +++ b/mm/interval_tree.c @@ -24,6 +24,9 @@ INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.rb, unsigned long, shared.rb_subtree_last, vma_start_pgoff, vma_last_pgoff, /* empty */, vma_interval_tree) +EXPORT_SYMBOL_GPL(vma_interval_tree_iter_first); +EXPORT_SYMBOL_GPL(vma_interval_tree_iter_next); + /* Insert node immediately after prev in the interval tree */ void vma_interval_tree_insert_after(struct vm_area_struct *node, struct vm_area_struct *prev,
