Commit-ID: 0d75f123a6dcdacb3550b0c3c44a283f7259289e
Gitweb: https://git.kernel.org/tip/0d75f123a6dcdacb3550b0c3c44a283f7259289e
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Tue, 6 Mar 2018 11:13:17 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 5 Apr 2018 11:03:33 -0300
perf auxtrace: Make auxtrace_queues__add_buffer() allocate struct buffer
In preparation for supporting AUX area sampling buffers,
auxtrace_queues__add_buffer() needs to be more generic. To that end,
move memory allocation for struct buffer into it.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1520327598-1317-7-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/auxtrace.c | 54 +++++++++++++++++++++-------------------------
1 file changed, 24 insertions(+), 30 deletions(-)
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index fb357a00dd86..e1aff91c54a8 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -308,7 +308,11 @@ static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
struct auxtrace_buffer *buffer,
struct auxtrace_buffer **buffer_ptr)
{
- int err;
+ int err = -ENOMEM;
+
+ buffer = memdup(buffer, sizeof(*buffer));
+ if (!buffer)
+ return -ENOMEM;
if (session->one_mmap) {
buffer->data = buffer->data_offset - session->one_mmap_offset +
@@ -316,24 +320,28 @@ static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
} else if (perf_data__is_pipe(session->data)) {
buffer->data = auxtrace_copy_data(buffer->size, session);
if (!buffer->data)
- return -ENOMEM;
+ goto out_free;
buffer->data_needs_freeing = true;
} else if (BITS_PER_LONG == 32 &&
buffer->size > BUFFER_LIMIT_FOR_32_BIT) {
err = auxtrace_queues__split_buffer(queues, idx, buffer);
if (err)
- return err;
+ goto out_free;
}
err = auxtrace_queues__queue_buffer(queues, idx, buffer);
if (err)
- return err;
+ goto out_free;
/* FIXME: Doesn't work for split buffer */
if (buffer_ptr)
*buffer_ptr = buffer;
return 0;
+
+out_free:
+ auxtrace_buffer__free(buffer);
+ return err;
}
static bool filter_cpu(struct perf_session *session, int cpu)
@@ -348,36 +356,22 @@ int auxtrace_queues__add_event(struct auxtrace_queues *queues,
union perf_event *event, off_t data_offset,
struct auxtrace_buffer **buffer_ptr)
{
- struct auxtrace_buffer *buffer;
- unsigned int idx;
- int err;
+ struct auxtrace_buffer buffer = {
+ .pid = -1,
+ .tid = event->auxtrace.tid,
+ .cpu = event->auxtrace.cpu,
+ .data_offset = data_offset,
+ .offset = event->auxtrace.offset,
+ .reference = event->auxtrace.reference,
+ .size = event->auxtrace.size,
+ };
+ unsigned int idx = event->auxtrace.idx;
if (filter_cpu(session, event->auxtrace.cpu))
return 0;
- buffer = zalloc(sizeof(struct auxtrace_buffer));
- if (!buffer)
- return -ENOMEM;
-
- buffer->pid = -1;
- buffer->tid = event->auxtrace.tid;
- buffer->cpu = event->auxtrace.cpu;
- buffer->data_offset = data_offset;
- buffer->offset = event->auxtrace.offset;
- buffer->reference = event->auxtrace.reference;
- buffer->size = event->auxtrace.size;
- idx = event->auxtrace.idx;
-
- err = auxtrace_queues__add_buffer(queues, session, idx, buffer,
- buffer_ptr);
- if (err)
- goto out_err;
-
- return 0;
-
-out_err:
- auxtrace_buffer__free(buffer);
- return err;
+ return auxtrace_queues__add_buffer(queues, session, idx, &buffer,
+ buffer_ptr);
}
static int auxtrace_queues__add_indexed_event(struct auxtrace_queues *queues,
--
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