diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2024-07-01 11:31:15 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-10 12:14:54 -0700 |
| commit | 3a3b7fec3974f954600844e41d773c00857ef48a (patch) | |
| tree | 40eb0671403d8c096f35cc0b5d457802dd139e1f /mm/memcontrol-v1.c | |
| parent | 6df13230b612af81ce04f20bb37a02e58ef71925 (diff) | |
mm: remove CONFIG_MEMCG_KMEM
CONFIG_MEMCG_KMEM used to be a user-visible option for whether slab
tracking is enabled. It has been default-enabled and equivalent to
CONFIG_MEMCG for almost a decade. We've only grown more kernel memory
accounting sites since, and there is no imaginable cgroup usecase going
forward that wants to track user pages but not the multitude of
user-drivable kernel allocations.
Link: https://lkml.kernel.org/r/20240701153148.452230-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Muchun Song <muchun.song@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol-v1.c')
| -rw-r--r-- | mm/memcontrol-v1.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/memcontrol-v1.c b/mm/memcontrol-v1.c index 7218884bc3c9..6b3e56e88a8a 100644 --- a/mm/memcontrol-v1.c +++ b/mm/memcontrol-v1.c @@ -2756,7 +2756,7 @@ static int mem_cgroup_oom_control_write(struct cgroup_subsys_state *css, return 0; } -#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_SLUB_DEBUG) +#ifdef CONFIG_SLUB_DEBUG static int mem_cgroup_slab_show(struct seq_file *m, void *p) { /* @@ -2863,7 +2863,7 @@ struct cftype mem_cgroup_legacy_files[] = { .write = mem_cgroup_reset, .read_u64 = mem_cgroup_read_u64, }, -#if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_SLUB_DEBUG) +#ifdef CONFIG_SLUB_DEBUG { .name = "kmem.slabinfo", .seq_show = mem_cgroup_slab_show, @@ -2922,7 +2922,6 @@ struct cftype memsw_files[] = { { }, /* terminate */ }; -#ifdef CONFIG_MEMCG_KMEM void memcg1_account_kmem(struct mem_cgroup *memcg, int nr_pages) { if (!cgroup_subsys_on_dfl(memory_cgrp_subsys)) { @@ -2932,7 +2931,6 @@ void memcg1_account_kmem(struct mem_cgroup *memcg, int nr_pages) page_counter_uncharge(&memcg->kmem, -nr_pages); } } -#endif /* CONFIG_MEMCG_KMEM */ bool memcg1_charge_skmem(struct mem_cgroup *memcg, unsigned int nr_pages, gfp_t gfp_mask) |