Re: [PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-08-18 Thread Michael Ellerman
On Thu, 29 Apr 2021 19:49:08 +0200, Laurent Dufour wrote: > When a CPU is hot added, the CPU ids are taken from the available mask from > the lower possible set. If that set of values was previously used for CPU > attached to a different node, this seems to application like if these CPUs > have mig

Re: [PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-08-03 Thread Laurent Dufour
Le 03/08/2021 à 18:54, Nathan Lynch a écrit : Laurent Dufour writes: V5: - Rework code structure - Reintroduce the capability to reuse other node's ids. OK. While I preferred v4, where we would fail an add rather than allow CPU IDs to appear to "travel" between nodes, this change is a net

Re: [PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-08-03 Thread Nathan Lynch
Laurent Dufour writes: > V5: > - Rework code structure > - Reintroduce the capability to reuse other node's ids. OK. While I preferred v4, where we would fail an add rather than allow CPU IDs to appear to "travel" between nodes, this change is a net improvement. Reviewed-by: Nathan Lynch

Re: [PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-07-19 Thread Laurent Dufour
Hi Michael, Is there a way to get that patch in 5.14? Thanks, Laurent. Le 29/04/2021 à 19:49, Laurent Dufour a écrit : When a CPU is hot added, the CPU ids are taken from the available mask from the lower possible set. If that set of values was previously used for CPU attached to a different n

Re: [PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-07-01 Thread Laurent Dufour
Hi Michael, Do you mind taking this patch of 5.14? Thanks, Laurent. Le 29/04/2021 à 19:49, Laurent Dufour a écrit : When a CPU is hot added, the CPU ids are taken from the available mask from the lower possible set. If that set of values was previously used for CPU attached to a different node

[PATCH v5] pseries: prevent free CPU ids to be reused on another node

2021-04-29 Thread Laurent Dufour
When a CPU is hot added, the CPU ids are taken from the available mask from the lower possible set. If that set of values was previously used for CPU attached to a different node, this seems to application like if these CPUs have migrated from a node to another one which is not expected in real lif