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# 27d676a1 20-Oct-2022 Huang Ying <[email protected]>

memory tier, sysfs: rename attribute "nodes" to "nodelist"

In sysfs, we use attribute name "cpumap" or "cpus" for cpu mask and
"cpulist" or "cpus_list" for cpu list. For example, in my system,

$

memory tier, sysfs: rename attribute "nodes" to "nodelist"

In sysfs, we use attribute name "cpumap" or "cpus" for cpu mask and
"cpulist" or "cpus_list" for cpu list. For example, in my system,

$ cat /sys/devices/system/node/node0/cpumap
f,ffffffff
$ cat /sys/devices/system/cpu/cpu2/topology/core_cpus
0,00100004
$ cat cat /sys/devices/system/node/node0/cpulist
0-35
$ cat /sys/devices/system/cpu/cpu2/topology/core_cpus_list
2,20

It looks reasonable to use "nodemap" for node mask and "nodelist" for
node list. So, rename the attribute to follow the naming convention.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: 9832fb87834e2b ("mm/demotion: expose memory tier details via sysfs")
Signed-off-by: "Huang, Ying" <[email protected]>
Acked-by: Wei Xu <[email protected]>
Reviewed-by: Aneesh Kumar K.V <[email protected]>
Reviewed-by: Yang Shi <[email protected]>
Reviewed-by: Davidlohr Bueso <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: Bharata B Rao <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Hesham Almatary <[email protected]>
Cc: Jagdish Gediya <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Tim Chen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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Revision tags: v6.1-rc1, v6.0, v6.0-rc7, v6.0-rc6, v6.0-rc5, v6.0-rc4
# 9832fb87 30-Aug-2022 Aneesh Kumar K.V <[email protected]>

mm/demotion: expose memory tier details via sysfs

Add /sys/devices/virtual/memory_tiering/ where all memory tier related
details can be found. All allocated memory tiers will be listed there as
/sy

mm/demotion: expose memory tier details via sysfs

Add /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

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

[[email protected]: drop toptier_nodes from sysfs]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Aneesh Kumar K.V <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: Bharata B Rao <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Hesham Almatary <[email protected]>
Cc: "Huang, Ying" <[email protected]>
Cc: Jagdish Gediya <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Tim Chen <[email protected]>
Cc: Wei Xu <[email protected]>
Cc: Yang Shi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

show more ...