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97dceba29a
This change adds retries into the Fast Page Fault path. Without the retries, the code still works, but if a retry does end up being needed, then it will result in a second page fault for the same memory access, which will cause much more overhead compared to just retrying within the original fault. This would be especially useful with the upcoming fast access tracking change, as that would make it more likely for retries to be needed (e.g. due to read and write faults happening on different CPUs at the same time). Signed-off-by: Junaid Shahid <junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.