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mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM

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Let the user know that CONFIG_MEMCG_KMEM does not apply to the cgroup2
interface. This also makes legacy-only code sections stand out better.

[[email protected]: mm: memcontrol: only manage socket pressure for CONFIG_INET]
Signed-off-by: Johannes Weiner <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Tejun Heo <[email protected]>
Acked-by: Vladimir Davydov <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johannes Weiner 2016-01-20 15:02:41 -08:00 • committed by Linus Torvalds
commit 489c2a20a4
5 changed files with 23 additions and 13 deletions
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10
init/Kconfig
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@ -964,10 +964,13 @@ 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 "Memory Resource Controller Kernel Memory accounting"
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
@ -1071,6 +1074,11 @@ config CGROUP_FREEZER
Provides a way to freeze and unfreeze all tasks in a
cgroup.
This option affects the ORIGINAL cgroup interface. The cgroup2 memory
controller includes important in-kernel memory consumers per default.
If you're using cgroup2, say N.
config CGROUP_HUGETLB
bool "HugeTLB controller"
depends on HUGETLB_PAGE