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 /kernel/bpf/syscall.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 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index f45ed6adc092..8f716f06c345 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -385,7 +385,7 @@ void bpf_map_free_id(struct bpf_map *map) spin_unlock_irqrestore(&map_idr_lock, flags); } -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG static void bpf_map_save_memcg(struct bpf_map *map) { /* Currently if a map is created by a process belonging to the root @@ -486,7 +486,7 @@ int bpf_map_alloc_pages(const struct bpf_map *map, gfp_t gfp, int nid, unsigned long i, j; struct page *pg; int ret = 0; -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG struct mem_cgroup *memcg, *old_memcg; memcg = bpf_map_get_memcg(map); @@ -505,7 +505,7 @@ int bpf_map_alloc_pages(const struct bpf_map *map, gfp_t gfp, int nid, break; } -#ifdef CONFIG_MEMCG_KMEM +#ifdef CONFIG_MEMCG set_active_memcg(old_memcg); mem_cgroup_put(memcg); #endif |