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authorAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>2022-08-18 18:40:37 +0530
committerAndrew Morton <akpm@linux-foundation.org>2022-09-26 19:46:12 -0700
commit6c542ab75714fe90dae292aeb3e91ac53f5ff599 (patch)
treeddc14072be56d9171f8038436cf2045a5992e842 /mm/vmstat.c
parent7b88bda3761b95856cf97822efe8281c8100067b (diff)
mm/demotion: build demotion targets based on explicit memory tiers
This patch switch the demotion target building logic to use memory tiers instead of NUMA distance. All N_MEMORY NUMA nodes will be placed in the default memory tier and additional memory tiers will be added by drivers like dax kmem. This patch builds the demotion target for a NUMA node by looking at all memory tiers below the tier to which the NUMA node belongs. The closest node in the immediately following memory tier is used as a demotion target. Since we are now only building demotion target for N_MEMORY NUMA nodes the CPU hotplug calls are removed in this patch. Link: https://lkml.kernel.org/r/20220818131042.113280-6-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Reviewed-by: "Huang, Ying" <ying.huang@intel.com> Acked-by: Wei Xu <weixugc@google.com> Cc: Alistair Popple <apopple@nvidia.com> Cc: Bharata B Rao <bharata@amd.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Hesham Almatary <hesham.almatary@huawei.com> Cc: Jagdish Gediya <jvgediya.oss@gmail.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Tim Chen <tim.c.chen@intel.com> Cc: Yang Shi <shy828301@gmail.com> Cc: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index c109167a669c..779f1ea6e8ea 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -28,7 +28,6 @@
#include <linux/mm_inline.h>
#include <linux/page_ext.h>
#include <linux/page_owner.h>
-#include <linux/migrate.h>
#include "internal.h"
@@ -2068,7 +2067,6 @@ static int vmstat_cpu_online(unsigned int cpu)
if (!node_state(cpu_to_node(cpu), N_CPU)) {
node_set_state(cpu_to_node(cpu), N_CPU);
- set_migration_target_nodes();
}
return 0;
@@ -2093,7 +2091,6 @@ static int vmstat_cpu_dead(unsigned int cpu)
return 0;
node_clear_state(node, N_CPU);
- set_migration_target_nodes();
return 0;
}
@@ -2126,7 +2123,6 @@ void __init init_mm_internals(void)
start_shepherd_timer();
#endif
- migrate_on_reclaim_init();
#ifdef CONFIG_PROC_FS
proc_create_seq("buddyinfo", 0444, NULL, &fragmentation_op);
proc_create_seq("pagetypeinfo", 0400, NULL, &pagetypeinfo_op);