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Currently, we can try to queue an event's work before the vhost_task is created. When this happens we just drop it in vhost_scsi_do_plug before even calling vhost_vq_work_queue. During a device shutdown we do the same thing after vhost_scsi_clear_endpoint has cleared the backends. In the next patches we will be able to kill the vhost_task before we have cleared the endpoint. In that case, vhost_vq_work_queue can fail and we will leak the event's memory. This has handle the failure by just freeing the event. This is safe to do, because vhost_vq_work_queue will only return failure for us when the vhost_task is killed and so userspace will not be able to handle events if we sent them. Signed-off-by: Mike Christie <michael.christie@oracle.com> Message-Id: <20240316004707.45557-2-michael.christie@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.