This series addresses multiple issues discovered with the dynamic ring buffer resizing.
Changelog: v3: - Drop first 3 patches (Rebased on 7.2-rc7) - Add a patch to align "nr_pages" to unsigned int - Add a patch to remove useless trace_buffer::cpus - Add unsigned long cast for rb_subbuf_size() - subbuf_order fix for rb_free_cpu_buffer() (Sashiko) - Use __always_inline just like the other accessors for the hot-path. v2 (https://lore.kernel.org/all/[email protected]/): - Prevent resizing of the persistent ring buffer - Add missing bpage::order init - Rework subbuf_size/subbuf_order (Sashiko) - Remove ring_buffer_per_cpu::mapped - Dynamically calculate trace_buffer::max_data_size v1 (https://lore.kernel.org/all/[email protected]/ Vincent Donnefort (6): ring-buffer: Fix subbuf resize concurrency ring-buffer: Dynamically calculate max_data_size ring-buffer: Free cpu_buffer->free_page with subbuf_order ring-buffer: Remove trace_buffer::cpus ring-buffer: Remove ring_buffer_per_cpu::mapped ring-buffer: Make nr_pages unsigned int kernel/trace/ring_buffer.c | 259 +++++++++++++++++++------------------ 1 file changed, 136 insertions(+), 123 deletions(-) base-commit: db2ddb87143519e20a95aa36c60b36107b736a58 -- 2.55.0.654.g21b8a5bc05-goog
