6.18-stable review patch. If anyone has any objections, please let me know.
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From: Tal Zussman tz2294@columbia.edu
[ Upstream commit 8b62e64e6d30fa047b3aefb1a36e1f80c8acb3d2 ]
When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush tracepoint, the enum was not exported to user-space. Add it to the appropriate macro definition to enable parsing by userspace tools, as per:
Link: https://lore.kernel.org/all/20150403013802.220157513@goodmis.org
[ mingo: Capitalize IPI, etc. ]
Fixes: 2815a56e4b72 ("x86/mm/tlb: Add tracepoint for TLB flush IPI to stale CPU") Signed-off-by: Tal Zussman tz2294@columbia.edu Signed-off-by: Ingo Molnar mingo@kernel.org Reviewed-by: Steven Rostedt (Google) rostedt@goodmis.org Reviewed-by: David Hildenbrand david@redhat.com Reviewed-by: Rik van Riel riel@surriel.com Link: https://patch.msgid.link/20251212-tlb-trace-fix-v2-1-d322e0ad9b69@columbia.e... Signed-off-by: Sasha Levin sashal@kernel.org --- include/trace/events/tlb.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h index b4d8e7dc38f8..fb8369511685 100644 --- a/include/trace/events/tlb.h +++ b/include/trace/events/tlb.h @@ -12,8 +12,9 @@ EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \ 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_LOCAL_MM_SHOOTDOWN, "local MM shootdown" ) \ + 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