diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-06-06 10:20:33 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:38:11 (GMT) |
| commit | 7dc661e5831228f39b825b181295fc4e16d0d685 (patch) | |
| tree | 97642b53a9dace778c9faf6ae18cd29b58466539 /kernel/fork.c | |
| parent | 035b662c91680d741f19570147c4fef48e443560 (diff) | |
| download | linux-fsl-qoriq-7dc661e5831228f39b825b181295fc4e16d0d685.tar.xz | |
sched-mmdrop-delayed.patch
Needs thread context (pgd_lock) -> ifdeffed. workqueues wont work with
RT
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index d1e28a3..b681c38 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -611,6 +611,19 @@ void __mmdrop(struct mm_struct *mm) } EXPORT_SYMBOL_GPL(__mmdrop); +#ifdef CONFIG_PREEMPT_RT_BASE +/* + * RCU callback for delayed mm drop. Not strictly rcu, but we don't + * want another facility to make this work. + */ +void __mmdrop_delayed(struct rcu_head *rhp) +{ + struct mm_struct *mm = container_of(rhp, struct mm_struct, delayed_drop); + + __mmdrop(mm); +} +#endif + /* * Decrement the use count and release all resources for an mm. */ |