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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2012-05-29 08:26:01 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-07-02 21:33:21 +0200 |
| commit | 037b64ed0bf2405a1a01542164d3418564b44fff (patch) | |
| tree | 59aa7e486e1673564f2a5687992130dffa71ca1b /kernel/rcutree.h | |
| parent | rcu: Prevent excessive line length in RCU_STATE_INITIALIZER() (diff) | |
| download | linux-037b64ed0bf2405a1a01542164d3418564b44fff.tar.xz linux-037b64ed0bf2405a1a01542164d3418564b44fff.zip | |
rcu: Place pointer to call_rcu() in rcu_data structure
This is a preparatory commit for increasing rcu_barrier()'s concurrency.
It adds a pointer in the rcu_data structure to the corresponding call_rcu()
function. This allows a pointer to the rcu_data structure to imply the
function pointer, which allows _rcu_barrier() state to be placed in the
rcu_state structure.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcutree.h')
| -rw-r--r-- | kernel/rcutree.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 780a0195d35a..049896a835d9 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -364,6 +364,8 @@ struct rcu_state { u32 levelcnt[MAX_RCU_LVLS + 1]; /* # nodes in each level. */ u8 levelspread[RCU_NUM_LVLS]; /* kids/node in each level. */ struct rcu_data __percpu *rda; /* pointer of percu rcu_data. */ + void (*call)(struct rcu_head *head, /* call_rcu() flavor. */ + void (*func)(struct rcu_head *head)); /* The following fields are guarded by the root rcu_node's lock. */ |