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authorJohannes Weiner <hannes@cmpxchg.org>2016-01-20 15:02:47 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-20 17:09:18 -0800
commitd886f4e483ce63a3304adc9eda87031b93341c28 (patch)
tree2a638984e7b055680ea4d93e2897659954fcd3be /init
parentd55f90bfab40e3b5db323711d28186ff09461692 (diff)
downloadlinux-stericsson-d886f4e483ce63a3304adc9eda87031b93341c28.tar.gz
mm: memcontrol: rein in the CONFIG space madness
What CONFIG_INET and CONFIG_LEGACY_KMEM guard inside the memory controller code is insignificant, having these conditionals is not worth the complication and fragility that comes with them. [akpm@linux-foundation.org: rework mem_cgroup_css_free() statement ordering] Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Acked-by: Vladimir Davydov <vdavydov@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig21
1 files changed, 3 insertions, 18 deletions
diff --git a/init/Kconfig b/init/Kconfig
index a0a15cec8daf..22320804fbaf 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -964,20 +964,6 @@ config MEMCG_SWAP_ENABLED
For those who want to have the feature enabled by default should
select this option (if, for some reason, they need to disable it
then swapaccount=0 does the trick).
-config MEMCG_LEGACY_KMEM
- bool
-config MEMCG_KMEM
- bool "Legacy Memory Resource Controller Kernel Memory accounting"
- depends on MEMCG
- depends on SLUB || SLAB
- select MEMCG_LEGACY_KMEM
- help
- The Kernel Memory extension for Memory Resource Controller can limit
- the amount of memory used by kernel objects in the system. Those are
- fundamentally different from the entities handled by the standard
- Memory Controller, which are page-based, and can be swapped. Users of
- the kmem extension can use it to guarantee that no group of processes
- will ever exhaust kernel resources alone.
config BLK_CGROUP
bool "IO controller"
@@ -1190,10 +1176,9 @@ config USER_NS
to provide different user info for different servers.
When user namespaces are enabled in the kernel it is
- recommended that the MEMCG and MEMCG_KMEM options also be
- enabled and that user-space use the memory control groups to
- limit the amount of memory a memory unprivileged users can
- use.
+ recommended that the MEMCG option also be enabled and that
+ user-space use the memory control groups to limit the amount
+ of memory a memory unprivileged users can use.
If unsure, say N.