The patch titled
cpusets: document adding/removing cpus to cpuset elaborately
has been added to the -mm tree. Its filename is
cpusets-document-adding-removing-cpus-to-cpuset-elaborately.patch
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Subject: cpusets: document adding/removing cpus to cpuset elaborately
From: Nikanth Karthikesan <knikanth@xxxxxxx>
By writing a tasks's pid to the file, a process adds that task to that
cgroup/cpuset. But to add a cpu/mem to a cpuset, the new list of cpus
should be written to the cpuset.mems file which would replace the old list
of cpus. Make this clearer in the documentation.
Signed-off-by: Nikanth Karthikesan <knikanth@xxxxxxx>
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
Acked-by: Paul Menage <menage@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/cgroups/cpusets.txt | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff -puN Documentation/cgroups/cpusets.txt~cpusets-document-adding-removing-cpus-to-cpuset-elaborately Documentation/cgroups/cpusets.txt
--- a/Documentation/cgroups/cpusets.txt~cpusets-document-adding-removing-cpus-to-cpuset-elaborately
+++ a/Documentation/cgroups/cpusets.txt
@@ -777,6 +777,18 @@ in cpuset directories:
# /bin/echo 1-4 > cpus -> set cpus list to cpus 1,2,3,4
# /bin/echo 1,2,3,4 > cpus -> set cpus list to cpus 1,2,3,4
+To add a CPU to a cpuset, write the new list of CPUs including the
+CPU to be added. To add 6 to the above cpuset:
+
+# /bin/echo 1-4,6 > cpus -> set cpus list to cpus 1,2,3,4,6
+
+Similarly to remove a CPU from a cpuset, write the new list of CPUs
+without the CPU to be removed.
+
+To remove all the CPUs:
+
+# /bin/echo "" > cpus -> clear cpus list
+
2.3 Setting flags
-----------------
_
Patches currently in -mm which might be from knikanth@xxxxxxx are
cpusets-document-adding-removing-cpus-to-cpuset-elaborately.patch
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