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authorMiroslav Benes <mbenes@suse.cz>2018-12-28 14:38:47 +0100
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2019-02-06 11:58:33 -0500
commitd325c402964e7c63db94e9138c530832269a1297 (patch)
tree1c91c3aece96d2eb0a2d4eecfd3923722a1790db /kernel/trace
parentf52d569f3d929d9530d75976baa191d2d50fc51b (diff)
downloadlinux-d325c402964e7c63db94e9138c530832269a1297.tar.bz2
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>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/ring_buffer.c14
1 files changed, 0 insertions, 14 deletions
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.