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f15e1e8bc6
This lock is no longer necessary. If nfs4_get_renew_cred() needs to hunt through the open-state creds for a user cred, it still takes the lock to stablize the rbtree, but otherwise there are no races. Note that this completely removes the lock from nfs4_renew_state(). It appears that the original need for the locking here was removed long ago, and there is no longer anything to protect. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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.