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41cff026cf
Currently, the only user of vhost_log_write() is vhost-net. The 'len' argument prevents logging of pages that are not tainted by the RX path. Adjustments are needed since more drivers (i.e. vhost-scsi) begin using vhost_log_write(). So far vhost-net RX path may only partially use pages shared via the last vring descriptor. Unlike vhost-net, vhost-scsi always logs all pages shared via vring descriptors. To accommodate this, use (len == U64_MAX) to indicate whether the driver would log all pages of vring descriptors, or only pages that are tainted by the driver. In addition, removes BUG(). Suggested-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com> Message-Id: <20250403063028.16045-5-dongli.zhang@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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| drivers | ||
| fs | ||
| include | ||
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| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
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| security | ||
| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
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| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| 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 reStructuredText 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.