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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-19 07:41:46 +0200 |
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| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-19 07:41:46 +0200 |
| commit | f21f7fa263ac005713f0a7a43179c5aea0fabe85 (patch) | |
| tree | e260aa43863177bee64c14fe9d012a8f4022a730 /tools/perf/scripts/python/syscall-counts.py | |
| parent | Merge tag 'platform-drivers-x86-v4.19-2' of git://git.infradead.org/linux-platform-drivers-x86 (diff) | |
| parent | ring-buffer: Allow for rescheduling when removing pages (diff) | |
| download | wireguard-linux-f21f7fa263ac005713f0a7a43179c5aea0fabe85.tar.xz wireguard-linux-f21f7fa263ac005713f0a7a43179c5aea0fabe85.zip | |
Merge tag 'trace-v4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Steven writes:
"Vaibhav Nagarnaik found that modifying the ring buffer size could cause
a huge latency in the system because it does a while loop to free pages
without releasing the CPU (on non preempt kernels). In a case where there
are hundreds of thousands of pages to free it could actually cause a system
stall. A properly place cond_resched() solves this issue."
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