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commit90c91dfb86upstream. Kan and Andi reported that we fail to kill rotation when the flexible events go empty, but the context does not. XXX moar Fixes:fd7d55172d("perf/cgroups: Don't rotate events for cgroups unnecessarily") Reported-by: Andi Kleen <ak@linux.intel.com> Reported-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200305123851.GX2596@hirez.programming.kicks-ass.net Cc: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.