summaryrefslogtreecommitdiff
path: root/Documentation/cpusets.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/cpusets.txt')
-rw-r--r--Documentation/cpusets.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/cpusets.txt b/Documentation/cpusets.txt
index 159e2a0c3e80..76b44290c154 100644
--- a/Documentation/cpusets.txt
+++ b/Documentation/cpusets.txt
@@ -217,6 +217,12 @@ exclusive cpuset. Also, the use of a Linux virtual file system (vfs)
to represent the cpuset hierarchy provides for a familiar permission
and name space for cpusets, with a minimum of additional kernel code.
+The cpus file in the root (top_cpuset) cpuset is read-only.
+It automatically tracks the value of cpu_online_map, using a CPU
+hotplug notifier. If and when memory nodes can be hotplugged,
+we expect to make the mems file in the root cpuset read-only
+as well, and have it track the value of node_online_map.
+
1.4 What are exclusive cpusets ?
--------------------------------