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SubjectRe: [-mm patch] Show memcg information during OOM (v3)
>> BTW, I wonder can't we show the path of mount point ?
>> /group_A/01 is /cgroup/group_A/01 and /group_A/ is /cgroup/group_A/ on this system.
>> Very difficult ?
>>
>
> No, it is not very difficult, we just need to append the mount point.
> The reason for not doing it is consistency with output of
> /proc/<pid>/cgroup and other places where cgroup_path prints the path
> relative to the mount point. Since we are talking about memory, the
> administrator should know where it is mounted. Do you strongly feel
> the need to add mount point? My concern is consistency with other
> cgroup output (look at /proc/sched_debug) for example.
>

Another reason to not do so is, we can mount a specific hierarchy to
multiple mount points.
# mount -t cgroup -o memory /mnt
# mount -t cgroup -o memory /cgroup
# mkdir /mnt/0
Now, /mnt/0 is the same with /cgroup/0.



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