diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2016-11-14 17:35:56 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-01-14 11:37:20 +0100 |
| commit | 6b1ffa06e59d44e7ef04132f24c791931fbb0106 (patch) | |
| tree | c08ffc93fca77a0b89b651d7e9b4f81822034177 /security | |
| parent | locking/atomic, kref: Kill kref_sub() (diff) | |
| download | wireguard-linux-6b1ffa06e59d44e7ef04132f24c791931fbb0106.tar.xz wireguard-linux-6b1ffa06e59d44e7ef04132f24c791931fbb0106.zip | |
locking/atomic, kref: Use kref_get_unless_zero() more
For some obscure reason apparmor thinks its needs to locally implement
kref primitives that already exist. Stop doing this.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'security')
| -rw-r--r-- | security/apparmor/include/apparmor.h | 6 | ||||
| -rw-r--r-- | security/apparmor/include/policy.h | 4 |
2 files changed, 2 insertions, 8 deletions
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h index 5d721e990876..f067be814626 100644 --- a/security/apparmor/include/apparmor.h +++ b/security/apparmor/include/apparmor.h @@ -78,12 +78,6 @@ static inline void *kvzalloc(size_t size) return __aa_kvmalloc(size, __GFP_ZERO); } -/* returns 0 if kref not incremented */ -static inline int kref_get_not0(struct kref *kref) -{ - return atomic_inc_not_zero(&kref->refcount); -} - /** * aa_strneq - compare null terminated @str to a non null terminated substring * @str: a null terminated string diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h index 52275f040a5f..46467aaa557b 100644 --- a/security/apparmor/include/policy.h +++ b/security/apparmor/include/policy.h @@ -287,7 +287,7 @@ static inline struct aa_profile *aa_get_profile(struct aa_profile *p) */ static inline struct aa_profile *aa_get_profile_not0(struct aa_profile *p) { - if (p && kref_get_not0(&p->count)) + if (p && kref_get_unless_zero(&p->count)) return p; return NULL; @@ -307,7 +307,7 @@ static inline struct aa_profile *aa_get_profile_rcu(struct aa_profile __rcu **p) rcu_read_lock(); do { c = rcu_dereference(*p); - } while (c && !kref_get_not0(&c->count)); + } while (c && !kref_get_unless_zero(&c->count)); rcu_read_unlock(); return c; |