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47a3aeb39e
The PEBS TSC-based timestamps do not appear correctly in the final perf.data output file from perf record. The data->time field setup by PEBS in the setup_pebs_fixed_sample_data() is later overwritten by perf_events generic code in perf_prepare_sample(). There is an ordering problem. Set the sample flags when the data->time is updated by PEBS. The data->time field will not be overwritten anymore. Reported-by: Andreas Kogler <andreas.kogler.0x@gmail.com> Reported-by: Stephane Eranian <eranian@google.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220901130959.1285717-3-kan.liang@linux.intel.com
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.