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ffceb7640c
When a file/dentry has been deleted before closing all its open handles, currently, closing them can add them to the deferred close list. This can lead to problems in creating file with the same name when the file is re-created before the deferred close completes. This issue was seen while reusing a client's already existing lease on a file for compound operations and xfstest 591 failed because of the deferred close handle that remained valid even after the file was deleted and was being reused to create a file with the same name. The server in this case returns an error on open with STATUS_DELETE_PENDING. Recreating the file would fail till the deferred handles are closed (duration specified in closetimeo). This patch fixes the issue by flagging all open handles for the deleted file (file path to be precise) by setting status_file_deleted to true in the cifsFileInfo structure. As per the information classes specified in MS-FSCC, SMB2 query info response from the server has a DeletePending field, set to true to indicate that deletion has been requested on that file. If this is the case, flag the open handles for this file too. When doing close in cifs_close for each of these handles, check the value of this boolean field and do not defer close these handles if the corresponding filepath has been deleted. Signed-off-by: Meetakshi Setiya <msetiya@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com> |
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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.