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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-01-22 10:55:25 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-01-22 10:55:25 +0300 |
commit | 7755726fe90a8b253659756e6de68c1a55aa427f (patch) | |
tree | a3523fa77e07854db3b8089e3066a55ea997060c /include/linux/rcutree.h | |
parent | 3bf127637e22ddf95e67e10a23c339cee3d52429 (diff) | |
parent | 92dcffb916d309aa01778bf8963a6932e4014d07 (diff) | |
download | linux-7755726fe90a8b253659756e6de68c1a55aa427f.tar.xz |
Merge commit 'v2.6.33-rc5' into next
Diffstat (limited to 'include/linux/rcutree.h')
-rw-r--r-- | include/linux/rcutree.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index c93eee5911b0..8044b1b94333 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -45,6 +45,12 @@ extern void __rcu_read_unlock(void); extern void synchronize_rcu(void); extern void exit_rcu(void); +/* + * Defined as macro as it is a very low level header + * included from areas that don't even know about current + */ +#define rcu_preempt_depth() (current->rcu_read_lock_nesting) + #else /* #ifdef CONFIG_TREE_PREEMPT_RCU */ static inline void __rcu_read_lock(void) @@ -63,6 +69,11 @@ static inline void exit_rcu(void) { } +static inline int rcu_preempt_depth(void) +{ + return 0; +} + #endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */ static inline void __rcu_read_lock_bh(void) |