The three radix trees in gmap are all converted to the XArray.
This is another case where the multiple locks held mandates the use
of the xa_reserve() API. The gmap_insert_rmap() function is
considerably simplified by using the advanced API;
gmap_radix_tree_free() turns out to just be xa_destroy(), and
gmap_rmap_radix_tree_free() is a nice little iteration followed
by xa_destroy().
Signed-off-by: Matthew Wilcox <willy@infradead.org>
projects / users / willy / xarray.git / commit