ring-buffer: Add page statistics to the meta-page

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Add two fields pages_touched and pages_lost to the ring-buffer
meta-page. Those fields are useful to get the number of used pages in
the ring-buffer.

Link: https://patch.msgid.link/20260309162516.2623589-2-vdonnefort@google.com
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

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Vincent Donnefort 2026-03-09 16:24:47 +00:00 • committed by Steven Rostedt (Google)

parent 1f318b96cc

commit 7d776a3627

2 changed files with 6 additions and 4 deletions

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8

include/uapi/linux/trace_mmap.h

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2

kernel/trace/ring_buffer.c

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