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If the previous request on a slot was interrupted before it was processed by the server, then our slot sequence number may be out of whack, and so we try the next operation using the old sequence number. The problem with this, is that not all servers check to see that the client is replaying the same operations as previously when they decide to go to the replay cache, and so instead of the expected error of NFS4ERR_SEQ_FALSE_RETRY, we get a replay of the old reply, which could (if the operations match up) be mistaken by the client for a new reply. To fix this, we attempt to send a COMPOUND containing only the SEQUENCE op in order to resync our slot sequence number. Cc: Olga Kornievskaia <olga.kornievskaia@gmail.com> [olga.kornievskaia@gmail.com: fix an Oops] Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.