ring-buffer: Use subbuf_order in available memory estimation

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To avoid failing in the middle of an allocation of a ring-buffer,
__rb_allocate_pages() looks at the available memory estimation with
si_mem_available(). Use the subbuffer order with this estimation to fail
early if necessary for ring-buffers with an order > 0.

Link: https://patch.msgid.link/20261013102047.1488347-3-vdonnefort@google.com
Fixes: f9b94daa54 ("ring-buffer: Set new size of the ring buffer sub page")
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Vincent Donnefort 2026-10-13 11:20:47 +01:00 • committed by Steven Rostedt

parent c9fc60c18b

commit 13d530f2da

1 changed files with 4 additions and 4 deletions

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kernel/trace/ring_buffer.c

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