linux-kernel - [GIT PULL] ucount cleanups for v5.16

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Date:   Tue, 02 Nov 2021 14:01:00 -0500
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     <linux-kernel@...r.kernel.org>, Alexey Gladkov <legion@...nel.org>,
        Rune Kleveland <rune.kleveland@...omedia.dk>,
        Yu Zhao <yuzhao@...gle.com>,
        Jordan Glover <Golden_Miller83@...tonmail.ch>,
        Antoine Martin <antoine@...afix.co.uk>,
        David Howells <dhowells@...hat.com>,
        Jarkko Sakkinen <jarkko@...nel.org>
Subject: [GIT PULL] ucount cleanups for v5.16


Linus,

Please pull the ucount-fixes-for-v5.16 branch from the git tree:

  git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git ucount-fixes-for-v5.16

  HEAD: 32342701b4ba57a6fd77e8aca2f65f68c0fa1da6 ucounts: Use atomic_long_sub_return for clarity

While working on the ucount fixes a for v5.15 a number of cleanups
suggested themselves.  Little things like not testing for NULL when a
pointer can not be NULL and wrapping atomic_add_negative with a more
descriptive name, so that people reading the code can more quickly
understand what is going on.

Eric W. Biederman (4):
      ucounts: In set_cred_ucounts assume new->ucounts is non-NULL
      ucounts: Remove unnecessary test for NULL ucount in get_ucounts
      ucounts: Add get_ucounts_or_wrap for clarity
      ucounts: Use atomic_long_sub_return for clarity

 kernel/cred.c   |  5 ++---
 kernel/ucount.c | 20 +++++++++++++-------
 2 files changed, 15 insertions(+), 10 deletions(-)

Eric