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Some servers like Azure SMB servers always advertise multichannel capability in server capabilities list. Such servers return error STATUS_NOT_IMPLEMENTED for ioctl calls to query server interfaces, and expect clients to consider that as a sign that they do not support multichannel. We already handled this at mount time. Soon after the tree connect, we query server interfaces. And when server returned STATUS_NOT_IMPLEMENTED, we kept interface list as empty. When cifs_try_adding_channels gets called, it would not find any interfaces, so will not add channels. For the case where an active multichannel mount exists, and multichannel is disabled by such a server, this change will now allow the client to disable secondary channels on the mount. It will check the return status of query server interfaces call soon after a tree reconnect. If the return status is EOPNOTSUPP, then instead of the check to add more channels, we'll disable the secondary channels instead. For better code reuse, this change also moves the common code for disabling multichannel to a helper function. Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.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.