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 Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ 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 -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html