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authorzhangwei(Jovi) <jovi.zhangwei@huawei.com>2013-07-15 16:32:50 +0800
committerSteven Rostedt <rostedt@goodmis.org>2013-07-18 21:31:26 -0400
commitd611851b421731e2afd9cb956daae001af57a423 (patch)
tree6f19d53ba666b299d54c96622d3f4f06652b1448 /kernel
parent146c3442f2dd0f50d9431aea5d0d10dfd97c9999 (diff)
downloadop-kernel-dev-d611851b421731e2afd9cb956daae001af57a423.zip
op-kernel-dev-d611851b421731e2afd9cb956daae001af57a423.tar.gz
tracing: Typo fix on ring buffer comments
There have some mismatch between comments with real function name, update it. This patch also add some missed function arguments description. Link: http://lkml.kernel.org/r/51E3B3B2.4080307@huawei.com Signed-off-by: zhangwei(Jovi) <jovi.zhangwei@huawei.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ring_buffer.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index eef2e56..cc2f66f 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1066,7 +1066,7 @@ static int rb_check_list(struct ring_buffer_per_cpu *cpu_buffer,
}
/**
- * check_pages - integrity check of buffer pages
+ * rb_check_pages - integrity check of buffer pages
* @cpu_buffer: CPU buffer with pages to test
*
* As a safety measure we check to make sure the data pages have not
@@ -1258,7 +1258,7 @@ static int rb_cpu_notify(struct notifier_block *self,
#endif
/**
- * ring_buffer_alloc - allocate a new ring_buffer
+ * __ring_buffer_alloc - allocate a new ring_buffer
* @size: the size in bytes per cpu that is needed.
* @flags: attributes to set for the ring buffer.
*
@@ -1607,6 +1607,7 @@ static void update_pages_handler(struct work_struct *work)
* ring_buffer_resize - resize the ring buffer
* @buffer: the buffer to resize.
* @size: the new size.
+ * @cpu_id: the cpu buffer to resize
*
* Minimum size is 2 * BUF_PAGE_SIZE.
*
@@ -3956,11 +3957,11 @@ EXPORT_SYMBOL_GPL(ring_buffer_consume);
* expected.
*
* After a sequence of ring_buffer_read_prepare calls, the user is
- * expected to make at least one call to ring_buffer_prepare_sync.
+ * expected to make at least one call to ring_buffer_read_prepare_sync.
* Afterwards, ring_buffer_read_start is invoked to get things going
* for real.
*
- * This overall must be paired with ring_buffer_finish.
+ * This overall must be paired with ring_buffer_read_finish.
*/
struct ring_buffer_iter *
ring_buffer_read_prepare(struct ring_buffer *buffer, int cpu)
@@ -4009,7 +4010,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_read_prepare_sync);
* an intervening ring_buffer_read_prepare_sync must have been
* performed.
*
- * Must be paired with ring_buffer_finish.
+ * Must be paired with ring_buffer_read_finish.
*/
void
ring_buffer_read_start(struct ring_buffer_iter *iter)
@@ -4031,7 +4032,7 @@ ring_buffer_read_start(struct ring_buffer_iter *iter)
EXPORT_SYMBOL_GPL(ring_buffer_read_start);
/**
- * ring_buffer_finish - finish reading the iterator of the buffer
+ * ring_buffer_read_finish - finish reading the iterator of the buffer
* @iter: The iterator retrieved by ring_buffer_start
*
* This re-enables the recording to the buffer, and frees the
@@ -4346,6 +4347,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_swap_cpu);
/**
* ring_buffer_alloc_read_page - allocate a page to read from buffer
* @buffer: the buffer to allocate for.
+ * @cpu: the cpu buffer to allocate.
*
* This function is used in conjunction with ring_buffer_read_page.
* When reading a full page from the ring buffer, these functions
@@ -4403,7 +4405,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_free_read_page);
* to swap with a page in the ring buffer.
*
* for example:
- * rpage = ring_buffer_alloc_read_page(buffer);
+ * rpage = ring_buffer_alloc_read_page(buffer, cpu);
* if (!rpage)
* return error;
* ret = ring_buffer_read_page(buffer, &rpage, len, cpu, 0);
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