Re: [PATCH v2 1/2] x86/tlb/trace: Export the TLB_REMOTE_WRONG_CPU enum
From: Lorenzo Stoakes <hidden>
Date: 2025-12-15 12:39:58
Also in:
linux-arch, linux-mm, lkml
On Fri, Dec 12, 2025 at 04:08:07AM -0500, 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 (local) Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU") Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: David Hildenbrand <redacted> Reviewed-by: Rik van Riel <riel@surriel.com> Signed-off-by: Tal Zussman <redacted>
LGTM, so: Reviewed-by: Lorenzo Stoakes <redacted>
quoted hunk ↗ jump to hunk
--- include/trace/events/tlb.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h index b4d8e7dc38f8..725a75720a23 100644 --- a/include/trace/events/tlb.h +++ b/include/trace/events/tlb.h@@ -13,7 +13,8 @@ EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \ EM( TLB_LOCAL_SHOOTDOWN, "local shootdown" ) \ EM( TLB_LOCAL_MM_SHOOTDOWN, "local mm shootdown" ) \ - EMe( TLB_REMOTE_SEND_IPI, "remote ipi send" ) + EM( TLB_REMOTE_SEND_IPI, "remote ipi send" ) \ + EMe( TLB_REMOTE_WRONG_CPU, "remote wrong CPU" ) /* * First define the enums in TLB_FLUSH_REASON to be exported to userspace --2.39.5