Messages in this thread | | | Date | Wed, 25 Jan 2023 11:13:31 +0100 | Subject | [PATCH v3 0/3] x86/resctrl: Implement rename to help move containers' tasks | From | Peter Newman <> |
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Hi Reinette, Fenghua,
This patch series implements the solution Reinette suggested in the earlier RFD thread[1] for the problem of moving a container's tasks to a different control group on systems that don't provide enough CLOSIDs to give every container its own control group.
This patch series assumes that a MON group's CLOSID can simply be changed to that of a new parent CTRL_MON group. This is allowed on Intel and AMD, but not MPAM implementations. While we (Google) only foresee needing this functionality on Intel and AMD systems, this series should hopefully be a good starting point for supporting MPAM.
Thanks! -Peter
Updates:
v3: use revised task CLOSID/RMID update IPI sync method from [3] v2: reworded change logs based on what I've learned from review comments in another patch series[2]
[v1] https://lore.kernel.org/lkml/20221115154515.952783-1-peternewman@google.com/ [v2] https://lore.kernel.org/lkml/20221129120149.1035444-1-peternewman@google.com/
[1] https://lore.kernel.org/lkml/7b09fb62-e61a-65b9-a71e-ab725f527ded@intel.com/ [2] https://lore.kernel.org/lkml/54e50a9b-268f-2020-f54c-d38312489e2f@intel.com/ [3] https://lore.kernel.org/lkml/20221220161123.432120-1-peternewman@google.com/
Peter Newman (3): x86/resctrl: Factor rdtgroup lock for multi-file ops x86/resctrl: Factor work to update task CLOSID/RMID x86/resctrl: Implement rename op for mon groups
arch/x86/kernel/cpu/resctrl/rdtgroup.c | 170 ++++++++++++++++++------- 1 file changed, 126 insertions(+), 44 deletions(-)
base-commit: 2241ab53cbb5cdb08a6b2d4688feb13971058f65 -- 2.39.1.405.gd4c25cc71f-goog
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