diff options
| author | Michal Hocko <mhocko@suse.cz> | 2014-05-22 10:54:35 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-05-27 18:24:32 +1000 |
| commit | d515d645f51fe6f9bba6a1305ebb07dc2e429667 (patch) | |
| tree | ee8736c1506e7ee8b28c58ccd96451c14be25695 | |
| parent | 757df1a37b022058bca5982ee2bfd07899fc9ac4 (diff) | |
memcg-doc-clarify-global-vs-limit-reclaims-fix
update doc as per Johannes
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Roman Gushchin <klamm@yandex-team.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | Documentation/cgroups/memory.txt | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 5ba92acc0e25..1e5f666b6df2 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -241,17 +241,9 @@ global VM. Cgroups can get reclaimed basically under two conditions proportionally wrt. their LRU size in a round robin fashion - when a cgroup or its hierarchical parent (see 6. Hierarchical support) hits hard limit. If the reclaim is unsuccessful, an OOM routine is invoked - to select and kill the bulkiest task in the cgroup. (See 10. OOM Control + to select and kill the bulkiest task in the hiearchy. (See 10. OOM Control below.) -Global and hard-limit reclaims share the same code the only difference -is the objective of the reclaim. The global reclaim aims at balancing -zones' watermarks while the limit reclaim frees some memory to allow new -charges. - -NOTE: Hard limit reclaim does not work for the root cgroup, since we cannot set -any limits on the root cgroup. - Note2: When panic_on_oom is set to "2", the whole system will panic. When oom event notifier is registered, event will be delivered to the root |