Hi Peter, This supersedes [1]. Since there is no reason not to always go with high order allocations, we simply change the AUX allocator to optimistically do that with a fallback to lower orders. And since this is not an opt-in any more, no tool changes.
[1] https://marc.info/?l=linux-kernel&m=155005848007143 Alexander Shishkin (1): perf: Optimistically use high order allocations for AUX buffers kernel/events/ring_buffer.c | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-) -- 2.20.1