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Commit ce0725f7 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by Linus Torvalds
Browse files

numa: make "nr_online_nodes" unsigned int 

Number of online NUMA nodes can't be negative as well.  This doesn't
save space as the variable is used only in 32-bit context, but do it
anyway for consistency.

Link: http://lkml.kernel.org/r/20190201223151.GB15820@avx2


Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b9726c26

include/linux/nodemask.h

+2 −2
Original line number Diff line number Diff line
@@ -445,7 +445,7 @@ static inline int next_memory_node(int nid) 
}



extern unsigned int nr_node_ids;

extern int nr_online_nodes;

extern unsigned int nr_online_nodes;



static inline void node_set_online(int nid)

{
@@ -486,7 +486,7 @@ static inline int num_node_state(enum node_states state) 
#define first_memory_node	0

#define next_online_node(nid)	(MAX_NUMNODES)

#define nr_node_ids		1U

#define nr_online_nodes		1

#define nr_online_nodes		1U



#define node_set_online(node)	   node_set_state((node), N_ONLINE)

#define node_set_offline(node)	   node_clear_state((node), N_ONLINE)

mm/page_alloc.c

+2 −2
Original line number Diff line number Diff line
@@ -290,7 +290,7 @@ EXPORT_SYMBOL(movable_zone); 


#if MAX_NUMNODES > 1

unsigned int nr_node_ids __read_mostly = MAX_NUMNODES;

int nr_online_nodes __read_mostly = 1;

unsigned int nr_online_nodes __read_mostly = 1;

EXPORT_SYMBOL(nr_node_ids);

EXPORT_SYMBOL(nr_online_nodes);

#endif
@@ -5664,7 +5664,7 @@ void __ref build_all_zonelists(pg_data_t *pgdat) 
	else

		page_group_by_mobility_disabled = 0;



	pr_info("Built %i zonelists, mobility grouping %s.  Total pages: %ld\n",

	pr_info("Built %u zonelists, mobility grouping %s.  Total pages: %ld\n",

		nr_online_nodes,

		page_group_by_mobility_disabled ? "off" : "on",

		vm_total_pages);