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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2022-08-18 18:40:37 +0530 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 19:46:12 -0700 |
| commit | 6c542ab75714fe90dae292aeb3e91ac53f5ff599 (patch) | |
| tree | ddc14072be56d9171f8038436cf2045a5992e842 /mm/vmstat.c | |
| parent | mm/demotion/dax/kmem: set node's abstract distance to MEMTIER_DEFAULT_DAX_ADISTANCE (diff) | |
| download | linux-dev-6c542ab75714fe90dae292aeb3e91ac53f5ff599.tar.xz linux-dev-6c542ab75714fe90dae292aeb3e91ac53f5ff599.zip | |
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.c | 4 |
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); |