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| author | Peter Zijlstra <peterz@infradead.org> | 2015-08-04 19:22:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-09-13 09:07:39 -0700 |
| commit | 58b9cca673e06a9f98a902d95ff4cda951a7f234 (patch) | |
| tree | cb62f910ff6a0cb72f3b26a991f4d67d14703c0d /net/lapb/lapb_timer.c | |
| parent | db8d87e1cd13809687f39a3da567cb823e1b7576 (diff) | |
perf: Fix PERF_EVENT_IOC_PERIOD migration race
commit c7999c6f3fed9e383d3131474588f282ae6d56b9 upstream.
I ran the perf fuzzer, which triggered some WARN()s which are due to
trying to stop/restart an event on the wrong CPU.
Use the normal IPI pattern to ensure we run the code on the correct CPU.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: bad7192b842c ("perf: Fix PERF_EVENT_IOC_PERIOD to force-reset the period")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions