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authorTzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>2023-12-19 21:54:16 +0300
committerSteven Rostedt (Google) <rostedt@goodmis.org>2023-12-20 15:54:55 +0300
commit139f84002145d8624f0195fb090b3a7670744a13 (patch)
tree521419fca6c93b6b9121fdc2aefe1aac56de2659 /include/linux
parentd5cfbdfc96aadc96a2bf6176269b994e2ce31717 (diff)
downloadlinux-139f84002145d8624f0195fb090b3a7670744a13.tar.xz
ring-buffer: Page size per ring buffer
Currently the size of one sub buffer page is global for all buffers and it is hard coded to one system page. In order to introduce configurable ring buffer sub page size, the internal logic should be refactored to work with sub page size per ring buffer. Link: https://lore.kernel.org/linux-trace-devel/20211213094825.61876-3-tz.stoyanov@gmail.com Link: https://lore.kernel.org/linux-trace-kernel/20231219185628.009147038@goodmis.org Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Vincent Donnefort <vdonnefort@google.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/ring_buffer.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index b1b03b2c0f08..ce46218ce46d 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -200,7 +200,7 @@ int ring_buffer_read_page(struct trace_buffer *buffer, void **data_page,
struct trace_seq;
int ring_buffer_print_entry_header(struct trace_seq *s);
-int ring_buffer_print_page_header(struct trace_seq *s);
+int ring_buffer_print_page_header(struct trace_buffer *buffer, struct trace_seq *s);
enum ring_buffer_flags {
RB_FL_OVERWRITE = 1 << 0,