From: Greg Kroah-Hartman Date: Wed, 19 Sep 2018 05:41:46 +0000 (+0200) Subject: Merge tag 'trace-v4.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt... X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f21f7fa263ac005713f0a7a43179c5aea0fabe85;p=linux.git Merge tag 'trace-v4.19-rc4' of git://git./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." --- f21f7fa263ac005713f0a7a43179c5aea0fabe85