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a285180873
[ Upstream commit 47acca884f714f41d95dc654f802845544554784 ]
The amount of looping through the list of delegations is occasionally
leading to soft lockups. Avoid at least some loops by not requiring the
NFSv4 state manager to scan for delegations that are marked for
return-on-close. Instead, either mark them for immediate return (if
possible) or else leave it up to nfs4_inode_return_delegation_on_close()
to return them once the file is closed by the application.
Fixes: b757144fd7 ("NFSv4: Be less aggressive about returning delegations for open files")
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.