ring-buffer: Fix sub-buffer order updates and free_page leaks

[PATCH 0/1] ring-buffer: Fix sub-buffer order updates and free_page leaks

Masami Hiramatsu (Google) posted 1 patch 1 month, 2 weeks ago

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kernel/trace/ring_buffer.c |   35 +++++++++++++++++++++++++++++------
1 file changed, 29 insertions(+), 6 deletions(-)

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[PATCH 0/1] ring-buffer: Fix sub-buffer order updates and free_page leaks

Posted by Masami Hiramatsu (Google) 1 month, 2 weeks ago

Hi Vincent,

Here is my patch to fix the race and free_page problem.
Let's see what Sashiko says for this.

Thank you,

---
base-commit: 3d6d817622b0a9721e3cc404df3469171582be13

Masami Hiramatsu (Google) (1):
      ring-buffer: Fix race between ring_buffer_subbuf_order_set() and readers


 kernel/trace/ring_buffer.c |   35 +++++++++++++++++++++++++++++------
 1 file changed, 29 insertions(+), 6 deletions(-)

--
Masami Hiramatsu (Google) <mhiramat@kernel.org>

Re: [PATCH 0/1] ring-buffer: Fix sub-buffer order updates and free_page leaks

Posted by Vincent Donnefort 1 month, 2 weeks ago

On Fri, Aug 14, 2026 at 01:16:03AM +0900, Masami Hiramatsu (Google) wrote:
> Hi Vincent,
> 
> Here is my patch to fix the race and free_page problem.
> Let's see what Sashiko says for this.
> 
> Thank you,
> 
> ---
> base-commit: 3d6d817622b0a9721e3cc404df3469171582be13
> 
> Masami Hiramatsu (Google) (1):
>       ring-buffer: Fix race between ring_buffer_subbuf_order_set() and readers
> 
> 
>  kernel/trace/ring_buffer.c |   35 +++++++++++++++++++++++++++++------
>  1 file changed, 29 insertions(+), 6 deletions(-)
> 
> --
> Masami Hiramatsu (Google) <mhiramat@kernel.org>

Sorry I am not sure to understand what is wrong with that series I made here?

https://lore.kernel.org/all/20260813131152.3589632-1-vdonnefort@google.com/

-- 
Vincent