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commit7b9b9edb49upstream. Currently on lease break the client sets a caching level twice: when oplock is detected and when oplock is processed. While the 1st attempt sets the level to the value provided by the server, the 2nd one resets the level to None unconditionally. This happens because the oplock/lease processing code was changed to avoid races between page cache flushes and oplock breaks. The commitc11f1df500("cifs: Wait for writebacks to complete before attempting write.") fixed the races for oplocks but didn't apply the same changes for leases resulting in overwriting the server granted value to None. Fix this by properly processing lease breaks. Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> CC: Stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.