From: Weng Meiling <wengmeiling.w...@huawei.com>
Date: Mon, 15 Jul 2013 04:08:20 -0400
Subject: [PATCH] cgsnapshot: fix the display message of the given controllers
when we use cgsnapshot with the given controller, the result always displays
the last mounted controller which is not specified, so fix it.
Example:
# lssubsys -m
cpuset /cgroup/cpuset
cpu /cgroup/cpu
# lscgroup
cpu:/
cpu:/test
cpuset:/
cpuset:/test
before the patch:
# cgsnapshot -s cpu
# Configuration file generated by cgsnapshot
mount {
cpuset = /cgroup/cpuset;
cpu = /cgroup/cpu;
}
group test {
cpu {
cpu.rt_period_us="1000000";
cpu.rt_runtime_us="0";
cpu.shares="1024";
}
}
group test {
cpuset {
cpuset.memory_spread_slab="0";
cpuset.memory_spread_page="0";
cpuset.memory_migrate="0";
cpuset.sched_relax_domain_level="-1";
cpuset.sched_load_balance="1";
cpuset.mem_hardwall="0";
cpuset.mem_exclusive="0";
cpuset.cpu_exclusive="0";
cpuset.mems="";
cpuset.cpus="";
}
}
after the patch:
# cgsnapshot -s cpu
# Configuration file generated by cgsnapshot
mount {
cpuset = /cgroup/cpuset;
cpu = /cgroup/cpu;
}
group test {
cpu {
cpu.rt_period_us="1000000";
cpu.rt_runtime_us="0";
cpu.shares="1024";
}
}
Signed-off-by: Weng Meiling <wengmeiling.w...@huawei.com>
---
src/tools/cgsnapshot.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/tools/cgsnapshot.c b/src/tools/cgsnapshot.c
index 324f93b..166611b 100644
--- a/src/tools/cgsnapshot.c
+++ b/src/tools/cgsnapshot.c
@@ -582,7 +582,9 @@ static int parse_controllers(cont_name_t
cont_names[CG_CONTROLLER_MAX],
ret = cgroup_get_controller_next(&handle, &controller);
}
- if (max != 0) {
+ if ((!(flags & FL_LIST) ||
+ (is_ctlr_on_list(controllers, cont_names)))
+ && (max != 0)) {
(controllers[max])[0] = '\0';
ret = display_controller_data(
controllers, program_name);
--
1.8.2.2
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