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perf: Make struct ring_buffer less ambiguous

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eBPF requires needing to know the size of the perf ring buffer structure.
But it unfortunately has the same name as the generic ring buffer used by
tracing and oprofile. To make it less ambiguous, rename the perf ring buffer
structure to "perf_buffer".

As other parts of the ring buffer code has "perf_" as the prefix, it only
makes sense to give the ring buffer the "perf_" prefix as well.

Link: https://lore.kernel.org/r/20191213153553.GE20583@krava
Acked-by: Peter Zijlstra <peterz@infradead.org>
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware)
2019-12-13 13:21:30 -05:00
parent b3a987b026
commit 56de4e8f91
4 changed files with 68 additions and 68 deletions
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6
include/linux/perf_event.h
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@@ -582,7 +582,7 @@ struct swevent_hlist {
#define PERF_ATTACH_ITRACE 0x10
struct perf_cgroup;
struct ring_buffer;
struct perf_buffer;
struct pmu_event_list {
raw_spinlock_t lock;
@@ -694,7 +694,7 @@ struct perf_event {
struct mutex mmap_mutex;
atomic_t mmap_count;
struct ring_buffer *rb;
struct perf_buffer *rb;
struct list_head rb_entry;
unsigned long rcu_batches;
int rcu_pending;
@@ -854,7 +854,7 @@ struct perf_cpu_context {
struct perf_output_handle {
struct perf_event *event;
struct ring_buffer *rb;
struct perf_buffer *rb;
unsigned long wakeup;
unsigned long size;
u64 aux_flags;