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Commit 761b0677 authored by Konstantin Khlebnikov's avatar Konstantin Khlebnikov Committed by Linus Torvalds
Browse files

mm: completely remove dumping per-cpu lists from show_mem() 



It seems nobody needs this.

Signed-off-by: default avatarKonstantin Khlebnikov <koct9i@gmail.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d1bfcdb8

include/linux/mm.h

+0 −1
Original line number Diff line number Diff line
@@ -1126,7 +1126,6 @@ extern void pagefault_out_of_memory(void); 
 * various contexts.

 */

#define SHOW_MEM_FILTER_NODES		(0x0001u)	/* disallowed nodes */

#define SHOW_MEM_PERCPU_LISTS		(0x0002u)	/* per-zone per-cpu */



extern void show_free_areas(unsigned int flags);

extern bool skip_free_areas_node(unsigned int flags, int nid);

mm/page_alloc.c

+2 −20
Original line number Diff line number Diff line
@@ -3255,7 +3255,6 @@ static void show_migration_types(unsigned char type) 
 * Bits in @filter:

 * SHOW_MEM_FILTER_NODES: suppress nodes that are not allowed by current's

 *   cpuset.

 * SHOW_MEM_PERCPU_LISTS: display full per-node per-cpu pcp lists

 */

void show_free_areas(unsigned int filter)

{
@@ -3267,25 +3266,8 @@ void show_free_areas(unsigned int filter) 
		if (skip_free_areas_node(filter, zone_to_nid(zone)))

			continue;



		if (filter & SHOW_MEM_PERCPU_LISTS) {

			show_node(zone);

			printk("%s per-cpu:\n", zone->name);

		}



		for_each_online_cpu(cpu) {

			struct per_cpu_pageset *pageset;



			pageset = per_cpu_ptr(zone->pageset, cpu);



			free_pcp += pageset->pcp.count;



			if (!(filter & SHOW_MEM_PERCPU_LISTS))

				continue;



			printk("CPU %4d: hi:%5d, btch:%4d usd:%4d\n",

			       cpu, pageset->pcp.high,

			       pageset->pcp.batch, pageset->pcp.count);

		}

		for_each_online_cpu(cpu)

			free_pcp += per_cpu_ptr(zone->pageset, cpu)->pcp.count;

	}



	printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n"