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From:   Siddh Raman Pant <code@siddh.me>
To:     Eric Biggers <ebiggers@kernel.org>,
        Jonathan Corbet <corbet@lwn.net>,
        David Howells <dhowells@redhat.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
        Eric Dumazet <edumazet@google.com>
Cc:     linux-kernel <linux-kernel@vger.kernel.org>,
        linux-kernel-mentees 
        <linux-kernel-mentees@lists.linuxfoundation.org>
Message-ID: <cover.1659618705.git.code@siddh.me>
Subject: [PATCH 0/3] kernel/watch_queue: Clean up some code
Date:   Thu,  4 Aug 2022 19:00:21 +0530
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There is a dangling reference to pipe in a watch_queue after clearing it.
Thus, NULL that pointer while clearing. This can be thought of as a v4 of
the patches I had sent earlier.

This change renders wqueue->defunct superfluous, as the latter is only used
to check if watch_queue is cleared. With this change, the pipe is NULL'd
while clearing, so we can just check if the pipe is NULL.

Extending comment for watch_queue->pipe in the definition of watch_queue
made the comment conventionally too long (it was already past 80 chars),
so I have changed the struct annotations to be doxygen-styled, so that
I can extend the comment mentioning that the pipe is NULL when watch_queue
is cleared.

Siddh Raman Pant (3):
  kernel/watch_queue: Remove dangling pipe reference while clearing
    watch_queue
  kernel/watch_queue: Improve struct annotation formatting
  kernel/watch_queue: Remove wqueue->defunct and use pipe for clear
    check

 include/linux/watch_queue.h | 95 +++++++++++++++++++++++++++----------
 kernel/watch_queue.c        | 11 ++---
 2 files changed, 75 insertions(+), 31 deletions(-)

--=20
2.35.1