From 4318255091eab6722bea3816bdee09ac7db68035 Mon Sep 17 00:00:00 2001 From: "Uladzislau Rezki (Sony)" Date: Tue, 8 Apr 2025 17:15:47 +0200 Subject: [PATCH] vmalloc: add for_each_vmap_node() helper To simplify iteration over vmap-nodes, add the for_each_vmap_node() macro that iterates over all nodes in a system. It tends to simplify the code. Link: https://lkml.kernel.org/r/20250408151549.77937-1-urezki@gmail.com Signed-off-by: Uladzislau Rezki (Sony) Cc: Christop Hellwig Signed-off-by: Andrew Morton --- mm/vmalloc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 44b735a4573a..55949360a5cb 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -900,6 +900,11 @@ static struct vmap_node *vmap_nodes = &single; static __read_mostly unsigned int nr_vmap_nodes = 1; static __read_mostly unsigned int vmap_zone_size = 1; +/* A simple iterator over all vmap-nodes. */ +#define for_each_vmap_node(vn) \ + for ((vn) = &vmap_nodes[0]; \ + (vn) < &vmap_nodes[nr_vmap_nodes]; (vn)++) + static inline unsigned int addr_to_node_id(unsigned long addr) { -- 2.50.1