ring-buffer: Remove ring_buffer_per_cpu::mapped

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ring_buffer_per_cpu::mapped tracks if a ring-buffer is either mapped by
user-space or if it is a persistent buffer. We already have user_mapped
for the former and ring_meta for the latter. Get rid of mapped and
instead create rb_is_static(). A static ring-buffer cannot be resized,
swapped or have its pages extracted.

Link: https://patch.msgid.link/20260813131152.3589632-10-vdonnefort@google.com
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Vincent Donnefort 2026-08-13 14:11:51 +01:00 • committed by Steven Rostedt

parent d9b5e22bf2

commit 8b502bf6eb

1 changed files with 17 additions and 28 deletions

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45

kernel/trace/ring_buffer.c

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