X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fcgroups%2Fmemory.txt;h=fd129f62aaa4c395ae5e2beda84fac3ce8d05d7a;hb=refs%2Fheads%2Fpandora-3.2-hugetlb;hp=cc0ebc5241b39f2e9513d89a39d880771cab9c67;hpb=9991357259a5718813881bae96d3704bb3f531e2;p=pandora-kernel.git

diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index cc0ebc5241b3..fd129f62aaa4 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -440,6 +440,10 @@ Note:
 5.3 swappiness
 
 Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only.
+Please note that unlike the global swappiness, memcg knob set to 0
+really prevents from any swapping even if there is a swap storage
+available. This might lead to memcg OOM killer if there are no file
+pages to reclaim.
 
 Following cgroups' swappiness can't be changed.
 - root cgroup (uses /proc/sys/vm/swappiness).