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bc91df5c70
Using .compat_reset op from the previous patch, the buggy .reset behaviour can be kept as-is on older userspace apps, which don't ack the IOTLB_PERSIST backend feature. As this compatibility quirk is limited to those drivers that used to be buggy in the past, it won't affect change the behaviour or affect ABI on the setups with API compliant driver. The separation of .compat_reset from the regular .reset allows vhost-vdpa able to know which driver had broken behaviour before, so it can apply the corresponding compatibility quirk to the individual driver whenever needed. Compared to overloading the existing .reset with flags, .compat_reset won't cause any extra burden to the implementation of every compliant driver. [mst: squashed in two fixup commits] Message-Id: <1697880319-4937-6-git-send-email-si-wei.liu@oracle.com> Message-Id: <1698102863-21122-1-git-send-email-si-wei.liu@oracle.com> Reported-by: Dragos Tatulea <dtatulea@nvidia.com> Tested-by: Dragos Tatulea <dtatulea@nvidia.com> Message-Id: <1698275594-19204-1-git-send-email-si-wei.liu@oracle.com> Reported-by: Lei Yang <leiyang@redhat.com> Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Lei Yang <leiyang@redhat.com> |
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| fs | ||
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| ipc | ||
| kernel | ||
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| .mailmap | ||
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| COPYING | ||
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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.