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Joao Martins
f4b7e3efad
In an effort to minimize amount of TLB flushes, batch all PMD splits belonging to a range of pages in order to perform only 1 (global) TLB flush. Add a flags field to the walker and pass whether it's a bulk allocation or just a single page to decide to remap. First value (VMEMMAP_SPLIT_NO_TLB_FLUSH) designates the request to not do the TLB flush when we split the PMD. Rebased and updated by Mike Kravetz Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Joao Martins <[email protected]> Signed-off-by: Mike Kravetz <[email protected]> Reviewed-by: Muchun Song <[email protected]> Cc: Anshuman Khandual <[email protected]> Cc: Barry Song <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: David Rientjes <[email protected]> Cc: James Houghton <[email protected]> Cc: Konrad Dybcio <[email protected]> Cc: Matthew Wilcox (Oracle) <[email protected]> Cc: Miaohe Lin <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Naoya Horiguchi <[email protected]> Cc: Oscar Salvador <[email protected]> Cc: Sergey Senozhatsky <[email protected]> Cc: Usama Arif <[email protected]> Cc: Xiongchun Duan <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
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.