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mm: remove CONFIG_MEMCG_KMEM

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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>
This commit is contained in:
Johannes Weiner
2024-07-01 11:31:15 -04:00
committed by Andrew Morton
parent 6df13230b6
commit 3a3b7fec39
20 changed files with 59 additions and 131 deletions
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5
init/Kconfig
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@@ -986,11 +986,6 @@ config MEMCG_V1
San N is unsure.
config MEMCG_KMEM
bool
depends on MEMCG
default y
config BLK_CGROUP
bool "IO controller"
depends on BLOCK