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| author | Will Deacon <will.deacon@arm.com> | 2016-08-16 16:53:15 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-10-18 12:53:30 +0100 |
| commit | bc1d202023eb66f088f736ba423bee1cf135c720 (patch) | |
| tree | 98664ac30eeca124f3d0ff9d2f3d1ac896574f3f /kernel/events/ring_buffer.c | |
| parent | 5ffeb0501c6b36d080de78372fdb70b404b91e9d (diff) | |
| download | linux-stable-bc1d202023eb66f088f736ba423bee1cf135c720.tar.gz linux-stable-bc1d202023eb66f088f736ba423bee1cf135c720.tar.bz2 linux-stable-bc1d202023eb66f088f736ba423bee1cf135c720.zip | |
perf/core: Export AUX buffer helpers to modules
Perf PMU drivers using AUX buffers cannot be built as modules unless
the AUX helpers are exported.
This patch exports perf_aux_output_{begin,end,skip} and perf_get_aux to
modules.
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'kernel/events/ring_buffer.c')
| -rw-r--r-- | kernel/events/ring_buffer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index f684d8e5fa2b..6d9bffe4d6cc 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -411,6 +411,7 @@ err: return NULL; } +EXPORT_SYMBOL_GPL(perf_aux_output_begin); static bool __always_inline rb_need_aux_wakeup(struct ring_buffer *rb) { @@ -480,6 +481,7 @@ void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size) rb_free_aux(rb); ring_buffer_put(rb); } +EXPORT_SYMBOL_GPL(perf_aux_output_end); /* * Skip over a given number of bytes in the AUX buffer, due to, for example, @@ -505,6 +507,7 @@ int perf_aux_output_skip(struct perf_output_handle *handle, unsigned long size) return 0; } +EXPORT_SYMBOL_GPL(perf_aux_output_skip); void *perf_get_aux(struct perf_output_handle *handle) { @@ -514,6 +517,7 @@ void *perf_get_aux(struct perf_output_handle *handle) return handle->rb->aux_priv; } +EXPORT_SYMBOL_GPL(perf_get_aux); #define PERF_AUX_GFP (GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN | __GFP_NORETRY) |