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[ Upstream commit1d9c417211] For some ops on channel: 1. lookup_chann_list(), possibly on high frequency. 2. ksmbd_chann_del(). Connection is used as indexing key to lookup channel, in that case, linear search based on list may suffer a bit for performance. Implements sess->ksmbd_chann_list as xarray. Signed-off-by: Dawei Li <set_pte_at@outlook.com> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Stable-dep-of:f5c779b7dd("ksmbd: fix racy issue from session setup and logoff") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.