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1a9eb9b98f
The change_pte() interface is tailored for PFN updates, while the
other notifier invalidate_range() should be enough for Intel IOMMU
cache flushing. Actually we've done similar thing for AMD IOMMU
already in 8301da53fb ("iommu/amd: Remove change_pte mmu_notifier
call-back", 2014-07-30) but the Intel IOMMU driver still have it.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.