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authorSteven Rostedt <srostedt@redhat.com>2009-05-05 01:15:24 -0400
committerSteven Rostedt <rostedt@goodmis.org>2009-05-05 13:46:33 -0400
commitd6ce96dabe2c4409fd009ec14250a1fdbab4b133 (patch)
tree08a49382ec96651ca9adf8b28eb1566482fe3f9e
parent9ee1983c9aa18f12388ef660d0c76a23dc112959 (diff)
ring-buffer: export symbols
I'm adding a module to do a series of tests on the ring buffer as well as benchmarks. This module needs to have more of the ring buffer API exported. There's nothing wrong with reading the ring buffer from a module. [ Impact: allow modules to read pages from the ring buffer ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--kernel/trace/ring_buffer.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index f4cc59040eb..3e86da9b2a0 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2802,6 +2802,7 @@ void *ring_buffer_alloc_read_page(struct ring_buffer *buffer)
return bpage;
}
+EXPORT_SYMBOL_GPL(ring_buffer_alloc_read_page);
/**
* ring_buffer_free_read_page - free an allocated read page
@@ -2814,6 +2815,7 @@ void ring_buffer_free_read_page(struct ring_buffer *buffer, void *data)
{
free_page((unsigned long)data);
}
+EXPORT_SYMBOL_GPL(ring_buffer_free_read_page);
/**
* ring_buffer_read_page - extract a page from the ring buffer
@@ -2959,6 +2961,7 @@ int ring_buffer_read_page(struct ring_buffer *buffer,
out:
return ret;
}
+EXPORT_SYMBOL_GPL(ring_buffer_read_page);
static ssize_t
rb_simple_read(struct file *filp, char __user *ubuf,