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4905294162
__peernet2id_alloc() was used for both plain lookups and for netns ID allocations (depending the value of '*alloc'). Let's separate lookups from allocations instead. That is, integrate the lookup code into __peernet2id() and make peernet2id_alloc() responsible for allocating new netns IDs when necessary. This makes it clear that __peernet2id() doesn't modify the idr and prepares the code for lockless lookups. Also, mark the 'net' argument of __peernet2id() as 'const', since we're modifying this line. Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.