Hi Tejun,
On 17.11.2012 04:31, Tejun Heo wrote:
-static int write_classid(struct cgroup *cgrp, struct cftype *cft, u64 value)
+static int write_classid(struct cgroup *cgrp, struct cftype *cft,
+ const char *buf)
{
+ struct cgroup_cls_state *cs = cgrp_cls_state(cgrp);
+ s64 v;
+
+ if (sscanf(buf, "%lld", &v) != 1)
+ return -EINVAL;
+
This changes the user API slightly. cgroup_write_u64() uses
simple_stroull() to parse the string. simple_stroull() allows to use
either 0x1234 or 1234 as input. sscanf() will only handle the later type
of input.
I noticed this because my test script stopped working:
mkdir /sys/fs/cgroup/net_cls/a
echo 0x100002 > /sys/fs/cgroup/net_cls/a/net_cls.classid # 10:2
tc qdisc add dev $DEV root handle 10: htb
tc class add dev $DEV parent 10: classid 10:2 htb rate 1mbit
tc qdisc add dev $DEV parent 10:2 handle 20: sfq perturb 10
I am not completely sure if my setup is 100% correct, but at least
it seems to make something :)
cheers,
daniel
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