linux-kernel - Re: [PATCH 1/2] x86/tlb/trace: Export the TLB_REMOTE_WRONG

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Message-ID: <43ae7b3bf94b67611069572b7e3e909a922c964f.camel@surriel.com>
Date: Wed, 28 May 2025 10:25:45 -0400
From: Rik van Riel <riel@...riel.com>
To: Tal Zussman <tz2294@...umbia.edu>, Steven Rostedt <rostedt@...dmis.org>,
  Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Ingo Molnar	 <mingo@...nel.org>, Andrew
 Morton <akpm@...ux-foundation.org>, David Hildenbrand <david@...hat.com>,
 Lorenzo Stoakes <lorenzo.stoakes@...cle.com>, "Liam R. Howlett"	
 <Liam.Howlett@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport	
 <rppt@...nel.org>, Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko	
 <mhocko@...e.com>, x86@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, 
	linux-mm@...ck.org
Subject: Re: [PATCH 1/2] x86/tlb/trace: Export the TLB_REMOTE_WRONG_CPU enum

On Wed, 2025-05-28 at 01:35 -0400, Tal Zussman wrote:
> When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush
> tracepoint, the enum was not exported to userspace. Add it to the
> appropriate macro definition to enable parsing by userspace tools, as
> per [0].
> 
> [0] Link:
> https://lore.kernel.org/all/20150403013802.220157513@goodmis.org
> 
> Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to
> stale CPU")
> Signed-off-by: Tal Zussman <tz2294@...umbia.edu>

Good catch. Thank you!

Reviewed-by: Rik van Riel <riel@...riel.com>

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