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If vhost_scsi_setup_vq_cmds fails we leave the tpg->vhost_scsi pointer set. If the device is freed and then the user unmaps the LUN, the call to vhost_scsi_port_unlink -> vhost_scsi_hotunplug will see the that tpg->vhost_scsi is still set and try to use it. This has us clear the vhost_scsi pointer in the failure path. It also has us take tv_tpg_mutex in this failure path, because tv_tpg_vhost_count is accessed under this mutex in vhost_scsi_drop_nexus and in the future we will want to serialize access to tpg->vhost_scsi with that mutex instead of the vhost_scsi_mutex. Signed-off-by: Mike Christie <michael.christie@oracle.com> Message-Id: <20230321020624.13323-2-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 | ||
| .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 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.