diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/srcutiny.h | 1 | ||||
| -rw-r--r-- | include/linux/srcutree.h | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/srcutiny.h b/include/linux/srcutiny.h index 51ce25f07930..3bfbd44cb1b3 100644 --- a/include/linux/srcutiny.h +++ b/include/linux/srcutiny.h @@ -103,6 +103,7 @@ static inline void srcu_barrier(struct srcu_struct *ssp) synchronize_srcu(ssp); } +static inline void srcu_expedite_current(struct srcu_struct *ssp) { } #define srcu_check_read_flavor(ssp, read_flavor) do { } while (0) #define srcu_check_read_flavor_force(ssp, read_flavor) do { } while (0) diff --git a/include/linux/srcutree.h b/include/linux/srcutree.h index 42098e0fa0b7..93ad18acd6d0 100644 --- a/include/linux/srcutree.h +++ b/include/linux/srcutree.h @@ -42,6 +42,8 @@ struct srcu_data { struct timer_list delay_work; /* Delay for CB invoking */ struct work_struct work; /* Context for CB invoking. */ struct rcu_head srcu_barrier_head; /* For srcu_barrier() use. */ + struct rcu_head srcu_ec_head; /* For srcu_expedite_current() use. */ + int srcu_ec_state; /* State for srcu_expedite_current(). */ struct srcu_node *mynode; /* Leaf srcu_node. */ unsigned long grpmask; /* Mask for leaf srcu_node */ /* ->srcu_data_have_cbs[]. */ @@ -135,6 +137,11 @@ struct srcu_struct { #define SRCU_STATE_SCAN1 1 #define SRCU_STATE_SCAN2 2 +/* Values for srcu_expedite_current() state (->srcu_ec_state). */ +#define SRCU_EC_IDLE 0 +#define SRCU_EC_PENDING 1 +#define SRCU_EC_REPOST 2 + /* * Values for initializing gp sequence fields. Higher values allow wrap arounds to * occur earlier. @@ -210,6 +217,7 @@ struct srcu_struct { int __srcu_read_lock(struct srcu_struct *ssp) __acquires(ssp); void synchronize_srcu_expedited(struct srcu_struct *ssp); void srcu_barrier(struct srcu_struct *ssp); +void srcu_expedite_current(struct srcu_struct *ssp); void srcu_torture_stats_print(struct srcu_struct *ssp, char *tt, char *tf); // Converts a per-CPU pointer to an ->srcu_ctrs[] array element to that |