Commit 43182550 authored by Uladzislau Rezki (Sony)'s avatar Uladzislau Rezki (Sony) Committed by Andrew Morton
Browse files

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: default avatarUladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Christop Hellwig <hch@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent a40b3fa8

mm/vmalloc.c

+5 −0
Original line number Diff line number Diff line
@@ -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)

{