diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2020-02-24 22:14:51 +0100 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2020-05-19 15:51:18 +0200 |
| commit | e616cb8daadf637175af4fe53138a94c190c4816 (patch) | |
| tree | 60c33e92ebdb9d023fe37e3be98d4978e145dfc4 /kernel/locking/lockdep.c | |
| parent | hardirq/nmi: Allow nested nmi_enter() (diff) | |
| download | wireguard-linux-e616cb8daadf637175af4fe53138a94c190c4816.tar.xz wireguard-linux-e616cb8daadf637175af4fe53138a94c190c4816.zip | |
lockdep: Always inline lockdep_{off,on}()
These functions are called {early,late} in nmi_{enter,exit} and should
not be traced or probed. They are also puny, so 'inline' them.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com>
Link: https://lkml.kernel.org/r/20200505134101.048523500@linutronix.de
Diffstat (limited to 'kernel/locking/lockdep.c')
| -rw-r--r-- | kernel/locking/lockdep.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index ac10db66cc63..6f1c8cba09c6 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -393,25 +393,6 @@ void lockdep_init_task(struct task_struct *task) task->lockdep_recursion = 0; } -/* - * Split the recrursion counter in two to readily detect 'off' vs recursion. - */ -#define LOCKDEP_RECURSION_BITS 16 -#define LOCKDEP_OFF (1U << LOCKDEP_RECURSION_BITS) -#define LOCKDEP_RECURSION_MASK (LOCKDEP_OFF - 1) - -void lockdep_off(void) -{ - current->lockdep_recursion += LOCKDEP_OFF; -} -EXPORT_SYMBOL(lockdep_off); - -void lockdep_on(void) -{ - current->lockdep_recursion -= LOCKDEP_OFF; -} -EXPORT_SYMBOL(lockdep_on); - static inline void lockdep_recursion_finish(void) { if (WARN_ON_ONCE(--current->lockdep_recursion)) |