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    SubjectRe: [PATCH v4] mm/demotion: Expose memory tier details via sysfs
    Date
    "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> writes:

    > This patch adds /sys/devices/virtual/memory_tiering/ where all memory tier
    > related details can be found. All allocated memory tiers will be listed
    > there as /sys/devices/virtual/memory_tiering/memory_tierN/
    >
    > The nodes which are part of a specific memory tier can be listed via
    > /sys/devices/virtual/memory_tiering/memory_tierN/nodes

    It appears that XXXs is used for mask while XXXs_list is used for list?
    For example,

    # cat /sys/devices/system/cpu/cpu2/topology/core_cpus
    0,00100004
    # cat /sys/devices/system/cpu/cpu2/topology/core_cpus_list
    2,20

    It's better to follow the this convention?

    > A directory hierarchy looks like
    > :/sys/devices/virtual/memory_tiering$ tree memory_tier4/
    > memory_tier4/
    > ├── nodes
    > ├── subsystem -> ../../../../bus/memory_tiering
    > └── uevent
    >
    > :/sys/devices/virtual/memory_tiering$ cat memory_tier4/nodes
    > 0,2
    >
    > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>

    Best Regards,
    Huang, Ying

    [snip]

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