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| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2012-10-31 01:29:17 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2012-11-15 00:36:10 +0100 |
| commit | ea83f81b489be3be268ed7fabfe8dd94bdc45a29 (patch) | |
| tree | 02a79b38fec0c8fad31acbfa03b820ae00c242af /drivers/base | |
| parent | 0779726cc265805d0f7c7dd1d791fa4076b31a9a (diff) | |
| download | linux-ea83f81b489be3be268ed7fabfe8dd94bdc45a29.tar.gz | |
PM / OPP: using kfree_rcu() to simplify the code
The callback function of call_rcu() just calls a kfree(), so we can use kfree_rcu() instead of call_rcu() + callback function. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/opp.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index c8a908b099c0..50b2831e027d 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -461,17 +461,6 @@ int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt) } /** - * opp_free_rcu() - helper to clear the struct opp when grace period has - * elapsed without blocking the the caller of opp_set_availability - */ -static void opp_free_rcu(struct rcu_head *head) -{ - struct opp *opp = container_of(head, struct opp, head); - - kfree(opp); -} - -/** * opp_set_availability() - helper to set the availability of an opp * @dev: device for which we do this operation * @freq: OPP frequency to modify availability @@ -542,7 +531,7 @@ static int opp_set_availability(struct device *dev, unsigned long freq, list_replace_rcu(&opp->node, &new_opp->node); mutex_unlock(&dev_opp_list_lock); - call_rcu(&opp->head, opp_free_rcu); + kfree_rcu(opp, head); /* Notify the change of the OPP availability */ if (availability_req) |