Hi Heiko, Please find the set of patches that introduces s390 specific implementation for perf-events based hardware breakpoint interfaces for review. I did not introduce kernel per tracing check under kernel exit path 'RESTORE_ALL' as you said it is not so easy (and it was too complex for me to understand). Change in v4: - Introduced a kernel per tracing flag in lowcore structure for each cpu instead of global. - Handled a race condition with interrupts/preemption while looking for PER event in hw_breakpoint_handler() routine. Change in v3: - Merged first two patches of v1 patchset. - Introduced second patch that implements kernel part PER tracing. The patch set has been tested with ksym_tracer and watchpoints over GDB+ptrace and works fine. Thanks, -Mahesh. -- Signed-off-by: Mahesh Salgaonkar <mahesh@xxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
