From 761b06771adeeb734e9eebc6f70f916cb9e2f643 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Tue, 14 Apr 2015 15:45:32 -0700 Subject: [PATCH] mm: completely remove dumping per-cpu lists from show_mem() It seems nobody needs this. Signed-off-by: Konstantin Khlebnikov Cc: Michal Hocko Cc: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm.h | 1 - mm/page_alloc.c | 22 ++-------------------- 2 files changed, 2 insertions(+), 21 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 9c21b42..6571dd78 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -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); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index eab8e20..84466a4 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -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" -- 2.7.4