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A perf event has many attributes that are maintained in a separate structure that should be provided when a new perf_event is created. In preparation for the transition to perf_events the required attribute structures are created for all the events that may be used in the measurements. Most attributes for all the events are identical. The actual configuration, what specifies what needs to be measured, is what will be different between the events used. This configuration needs to be done with X86_CONFIG that cannot be used as part of the designated initializers used here, this will be introduced later. Although they do look identical at this time the attribute structures needs to be maintained separately since a perf_event will maintain a pointer to its unique attributes. In support of patch testing the new structs are given the unused attribute until their use in later patches. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: acme@kernel.org Cc: gavin.hindman@intel.com Cc: jithu.joseph@intel.com Cc: dave.hansen@intel.com Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/1822f6164e221a497648d108913d056ab675d5d0.1537377064.git.reinette.chatre@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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.