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authorJohannes Weiner <hannes@cmpxchg.org>2016-01-15 02:21:29 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-15 03:00:49 +0300
commitf7e1cb6ec51b041335b5ad4dd7aefb37a56d79a6 (patch)
treee99135a85ed74987871cf8608287321735249305 /Documentation/kernel-parameters.txt
parent1109208766d9fa7059a9b66ad488e66d99ce49af (diff)
downloadlinux-f7e1cb6ec51b041335b5ad4dd7aefb37a56d79a6.tar.xz
mm: memcontrol: account socket memory in unified hierarchy memory controller
Socket memory can be a significant share of overall memory consumed by common workloads. In order to provide reasonable resource isolation in the unified hierarchy, this type of memory needs to be included in the tracking/accounting of a cgroup under active memory resource control. Overhead is only incurred when a non-root control group is created AND the memory controller is instructed to track and account the memory footprint of that group. cgroup.memory=nosocket can be specified on the boot commandline to override any runtime configuration and forcibly exclude socket memory from active memory resource control. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
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diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b7d44871effc..168fd79dc697 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -608,6 +608,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
cut the overhead, others just disable the usage. So
only cgroup_disable=memory is actually worthy}
+ cgroup.memory= [KNL] Pass options to the cgroup memory controller.
+ Format: <string>
+ nosocket -- Disable socket memory accounting.
+
checkreqprot [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.