From 4c4548437c5722effcaf5b2dea85abd321935627 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Tue, 6 Mar 2018 11:13:16 +0200 Subject: [PATCH] perf auxtrace: Make auxtrace_queues__add_buffer() return buffer_ptr In preparation for supporting AUX area sampling buffers, auxtrace_queues__add_buffer() needs to be more generic. To that end, make it return buffer_ptr instead of the caller. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1520327598-1317-6-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/auxtrace.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 6ea840ec5b7f..fb357a00dd86 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -305,8 +305,11 @@ static int auxtrace_queues__split_buffer(struct auxtrace_queues *queues, static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues, struct perf_session *session, unsigned int idx, - struct auxtrace_buffer *buffer) + struct auxtrace_buffer *buffer, + struct auxtrace_buffer **buffer_ptr) { + int err; + if (session->one_mmap) { buffer->data = buffer->data_offset - session->one_mmap_offset + session->one_mmap_addr; @@ -317,14 +320,20 @@ static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues, buffer->data_needs_freeing = true; } else if (BITS_PER_LONG == 32 && buffer->size > BUFFER_LIMIT_FOR_32_BIT) { - int err; - err = auxtrace_queues__split_buffer(queues, idx, buffer); if (err) return err; } - return auxtrace_queues__queue_buffer(queues, idx, buffer); + err = auxtrace_queues__queue_buffer(queues, idx, buffer); + if (err) + return err; + + /* FIXME: Doesn't work for split buffer */ + if (buffer_ptr) + *buffer_ptr = buffer; + + return 0; } static bool filter_cpu(struct perf_session *session, int cpu) @@ -359,13 +368,11 @@ int auxtrace_queues__add_event(struct auxtrace_queues *queues, buffer->size = event->auxtrace.size; idx = event->auxtrace.idx; - err = auxtrace_queues__add_buffer(queues, session, idx, buffer); + err = auxtrace_queues__add_buffer(queues, session, idx, buffer, + buffer_ptr); if (err) goto out_err; - if (buffer_ptr) - *buffer_ptr = buffer; - return 0; out_err: -- GitLab