X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=Documentation%2Fcgroups%2Fmemory.txt;h=71c4da413444d969519ae464250774db5c05de63;hb=9a5a8f19b43430752067ecaee62fc59e11e88fa6;hp=c07f7b4fb88d162ad012e69a3d77aa90d62868ff;hpb=f59b51fe3d3092c08d7d554ecb40db24011b2ebc;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index c07f7b4..71c4da4 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -466,6 +466,10 @@ 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).