diff options
| author | Johannes Weiner <hannes@cmpxchg.org> | 2016-01-20 15:02:47 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-20 17:09:18 -0800 |
| commit | d886f4e483ce63a3304adc9eda87031b93341c28 (patch) | |
| tree | 2a638984e7b055680ea4d93e2897659954fcd3be /init | |
| parent | d55f90bfab40e3b5db323711d28186ff09461692 (diff) | |
| download | lwn-d886f4e483ce63a3304adc9eda87031b93341c28.tar.gz lwn-d886f4e483ce63a3304adc9eda87031b93341c28.zip | |
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/Kconfig | 21 |
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. |