Commit 0cc8d68a authored by Wei Yang's avatar Wei Yang Committed by Andrew Morton
Browse files

maple_tree: root node could be handled by !p_slot too 

For a root node, mte_parent_slot() return 0, this exactly fits the
following !p_slot check.

So we can remove the special handling for root node.

Link: https://lkml.kernel.org/r/20240913063128.27391-1-richard.weiyang@gmail.com


Signed-off-by: default avatarWei Yang <richard.weiyang@gmail.com>
Reviewed-by: default avatarLiam R. Howlett <Liam.Howlett@Oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 0f85eb33

lib/maple_tree.c

+1 −3
Original line number Diff line number Diff line
@@ -2155,9 +2155,7 @@ static inline bool mas_prev_sibling(struct ma_state *mas) 
{

	unsigned int p_slot = mte_parent_slot(mas->node);



	if (mte_is_root(mas->node))

		return false;



	/* For root node, p_slot is set to 0 by mte_parent_slot(). */

	if (!p_slot)

		return false;