Re: [PATCH v3 0/2] Improve DIAG 9c observability

Am 24.07.26 um 12:39 schrieb Ciunas Bennett:
> This series enhances observability for DIAG 9c directed yield operations
> in s390 KVM by refactoring the handler and adding comprehensive tracing
> support.
> 
> The first patch refactors __diag_time_slice_end_directed() to use a
> single exit point with a result string variable. This consolidates the
> control flow and eliminates code duplication in logging statements,
> making the function more maintainable.
> 
> The second patch builds on this refactoring by adding a new tracepoint
> kvm_s390_diag_9c that captures detailed information about directed yield
> operations, including target vcpu, target physical CPU, and operation
> results. This enables better analysis of VCPU scheduling
> behaviour and helps diagnose performance issues in virtualised s390
> environments.
> 
> Together, these changes provide kernel developers and system
> administrators with better tools to understand and debug VCPU scheduling
> patterns related to directed yields.
> 
> ---
> Changes in v3:
>   - Patch 2: Remove duplicated target_cpu and target_vcpu fields
> 
> Changes in v2:
>   - Add system maintainers to review mail
> 
> Ciunas Bennett (2):
>    s390/kvm: Refactor __diag_time_slice_end_directed for single exit
>      point
>    s390/kvm: Add tracepoint for DIAG 9c directed yield operations
Thanks applied. I changed the subject to "KVM: s390:" for both patches.