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1ec50dd12a
kmap() is being deprecated and will break uses of device dax after PKS protection is introduced.[1] These uses of kmap() in the SIW driver are thread local. Therefore kmap_local_page() is sufficient to use and will work with pgmap protected pages when those are implemnted. There is one more use of kmap() in this driver which is split into its own patch because kmap_local_page() has strict ordering rules and the use of the kmap_mask over multiple segments must be handled carefully. Therefore, that conversion is handled in a stand alone patch. Use kmap_local_page() instead of kmap() in the 'easy' cases. [1] https://lore.kernel.org/lkml/20201009195033.3208459-59-ira.weiny@intel.com/ Link: https://lore.kernel.org/r/20210622061422.2633501-4-ira.weiny@intel.com Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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| README | ||
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.