Messages in this thread Patch in this message | | | Date | Mon, 11 Aug 2008 16:53:27 -0700 | From | Matt Helsley <> | Subject | [PATCH 4/5] Container Freezer: Skip frozen cgroups during power management resume |
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When a system is resumed after a suspend, it will also unfreeze frozen cgroups.
This patchs modifies the resume sequence to skip the tasks which are part of a frozen control group.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Matt Helsley <matthltc@us.ibm.com> --- kernel/power/process.c | 3 +++ 1 file changed, 3 insertions(+)
Index: linux-2.6.27-rc1-mm1/kernel/power/process.c =================================================================== --- linux-2.6.27-rc1-mm1.orig/kernel/power/process.c +++ linux-2.6.27-rc1-mm1/kernel/power/process.c @@ -135,6 +135,9 @@ static void thaw_tasks(bool nosig_only) if (nosig_only && should_send_signal(p)) continue; + if (cgroup_frozen(p)) + continue; + thaw_process(p); } while_each_thread(g, p); read_unlock(&tasklist_lock); --
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