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1e3577a452
sv_refcnt is no longer useful. lockd and nfs-cb only ever have the svc active when there are a non-zero number of threads, so sv_refcnt mirrors sv_nrthreads. nfsd also keeps the svc active between when a socket is added and when the first thread is started, but we don't really need a refcount for that. We can simply not destroy the svc while there are any permanent sockets attached. So remove sv_refcnt and the get/put functions. Instead of a final call to svc_put(), call svc_destroy() instead. This is changed to also store NULL in the passed-in pointer to make it easier to avoid use-after-free situations. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.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.