linux

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Peter Zijlstra 59741451b4 perf: Identify the 0->1 transition for event::mmap_count

Needed because refcount_inc() doesn't allow the 0->1 transition.

Specifically, this is the case where we've created the RB, this means
there was no RB, and as such there could not have been an mmap.
Additionally we hold mmap_mutex to serialize everything.

This must be the first.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250812104019.956479989@infradead.org

2025-08-15 13:13:02 +02:00

callchain.c

perf/core: Move perf_event sysctls into kernel/events

2025-02-21 14:53:02 +01:00

core.c

perf: Identify the 0->1 transition for event::mmap_count

2025-08-15 13:13:02 +02:00

hw_breakpoint_test.c

…

hw_breakpoint.c

perf/hw_breakpoint: Return EOPNOTSUPP for unsupported breakpoint type

2025-03-04 09:42:13 +01:00