8a4e2742a5
The TDP MMU function __tdp_mmu_set_spte_atomic uses a cmpxchg64 to replace the SPTE value and returns -EBUSY on failure. The caller must check the return value and retry. Add __must_check to it, as well as to two more functions that forward the return value of __tdp_mmu_set_spte_atomic to their caller. Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com> Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com> Message-Id: <8f7d5a1b241bf5351eaab828d1a1efe5c17699ca.1705965635.git.isaku.yamahata@intel.com> Acked-by: Kai Huang <kai.huang@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.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 reStructuredText 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.