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commit47592fa8ebupstream. Oplock break may occur for different file handle than the deferred handle. Check for inode deferred closes list, if it's not empty then close all the deferred handles of inode because we should not cache handles if we dont have handle lease. Eg: If openfilelist has one deferred file handle and another open file handle from app for a same file, then on a lease break we choose the first handle in openfile list. The first handle in list can be deferred handle or actual open file handle from app. In case if it is actual open handle then today, we don't close deferred handles if we lose handle lease on a file. Problem with this is, later if app decides to close the existing open handle then we still be caching deferred handles until deferred close timeout. Leaving open handle may result in sharing violation when windows client tries to open a file with limited file share access. So we should check for deferred list of inode and walk through the list of deferred files in inode and close all deferred files. Fixes:9e31678fb4("SMB3: fix lease break timeout when multiple deferred close handles for the same file.") Cc: stable@kernel.org Signed-off-by: Bharath SM <bharathsm@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> 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.
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.