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[ Upstream commitaa95edf309] If we have multiple outstanding layoutget requests, the current code to update the layout barrier assumes that the outstanding layout stateids are updated in order. That's not necessarily the case. Instead of using the value of lo->plh_outstanding as a guesstimate for the window of values we need to accept, just wait to update the window until we're processing the last one. The intention here is just to ensure that we don't process 2^31 seqid updates without also updating the barrier. Fixes:1bcf34fdac("pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> 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.