x86/perf: A CR4.PCE bugfix and clarification
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- v1 Latest2 patches 0 repliesNew
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | x86/perf: Fix CR4.PCE propagation to use active_mm instead of mmarch/ | +2 | 0 replies | |
| 2/2 | x86/perf: Clarify why x86_pmu_event_mapped() isn't racyarch/ | +12 | 0 replies |
Reviews trailers per patch
None of the 2 patches has a Reviewed-by or Acked-by.
| Patch | Vince Weaver |
|---|---|
| 1/2 | Reported-and-tested-by |
| 2/2 |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/2] x86/perf: A CR4.PCE bugfix and clarification
Hi all-
Vince found a bug in our CR4.PCE handling. While investigating, I found what looked like another bug but actually wasn't.
Here's a fix for the bug (cc'd to stable) and a comment and lockdep annotation for why the other non-bug isn't actually a bug.
Andy Lutomirski (2):
x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm x86/perf: Clarify why x86_pmu_event_mapped() isn't racy
arch/x86/events/core.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
Signature · 1 line
2.9.3