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c4da4661d9
sk_diag_dump_icons() acquires embryo's lock by unix_state_lock_nested() to fetch its peer. The embryo's ->peer is set to NULL only when its parent listener is close()d. Then, unix_release_sock() is called for each embryo after unlinking skb by skb_dequeue(). In sk_diag_dump_icons(), we hold the parent's recvq lock, so we need not acquire unix_state_lock_nested(), and peer is always non-NULL. Let's remove unnecessary unix_state_lock_nested() and non-NULL test for peer. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: Paolo Abeni <pabeni@redhat.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 reStructuredText 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.