diff options
| author | Miroslav Benes <mbenes@suse.cz> | 2018-12-28 16:38:47 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-02-06 19:58:33 +0300 |
| commit | d325c402964e7c63db94e9138c530832269a1297 (patch) | |
| tree | 1c91c3aece96d2eb0a2d4eecfd3923722a1790db | |
| parent | f52d569f3d929d9530d75976baa191d2d50fc51b (diff) | |
| download | linux-d325c402964e7c63db94e9138c530832269a1297.tar.xz | |
ring-buffer: Remove unused function ring_buffer_page_len()
Commit 6b7e633fe9c2 ("tracing: Remove extra zeroing out of the ring
buffer page") removed the only caller of ring_buffer_page_len(). The
function is now unused and may be removed.
Link: http://lkml.kernel.org/r/20181228133847.106177-1-mbenes@suse.cz
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| -rw-r--r-- | include/linux/ring_buffer.h | 2 | ||||
| -rw-r--r-- | kernel/trace/ring_buffer.c | 14 |
2 files changed, 0 insertions, 16 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 5b9ae62272bb..f1429675f252 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -187,8 +187,6 @@ void ring_buffer_set_clock(struct ring_buffer *buffer, void ring_buffer_set_time_stamp_abs(struct ring_buffer *buffer, bool abs); bool ring_buffer_time_stamp_abs(struct ring_buffer *buffer); -size_t ring_buffer_page_len(void *page); - size_t ring_buffer_nr_pages(struct ring_buffer *buffer, int cpu); size_t ring_buffer_nr_dirty_pages(struct ring_buffer *buffer, int cpu); diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 06e864a334bb..9a91479bbbfe 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -353,20 +353,6 @@ static void rb_init_page(struct buffer_data_page *bpage) local_set(&bpage->commit, 0); } -/** - * ring_buffer_page_len - the size of data on the page. - * @page: The page to read - * - * Returns the amount of data on the page, including buffer page header. - */ -size_t ring_buffer_page_len(void *page) -{ - struct buffer_data_page *bpage = page; - - return (local_read(&bpage->commit) & ~RB_MISSED_FLAGS) - + BUF_PAGE_HDR_SIZE; -} - /* * Also stolen from mm/slob.c. Thanks to Mathieu Desnoyers for pointing * this issue out. |