diff options
| author | JP Kobryn <inwardvessel@gmail.com> | 2024-07-15 16:23:24 -0700 |
|---|---|---|
| committer | Neeraj Upadhyay <neeraj.upadhyay@kernel.org> | 2024-08-12 23:50:58 +0530 |
| commit | 29bc83e4d90546aa794a9584786086b141a6ba4d (patch) | |
| tree | e72590c356e219b9bc9afeb4468dfe8dc4dd2eed /include/linux/rcupdate.h | |
| parent | 8400291e289ee6b2bf9779ff1c83a291501f017b (diff) | |
srcu: faster gp seq wrap-around
Using a higher value for the initial gp sequence counters allows for
wrapping to occur faster. It can help with surfacing any issues that may
be happening as a result of the wrap around.
Signed-off-by: JP Kobryn <inwardvessel@gmail.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 13f6f00aecf9..8d56db70d417 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -34,6 +34,9 @@ #define ULONG_CMP_GE(a, b) (ULONG_MAX / 2 >= (a) - (b)) #define ULONG_CMP_LT(a, b) (ULONG_MAX / 2 < (a) - (b)) +#define RCU_SEQ_CTR_SHIFT 2 +#define RCU_SEQ_STATE_MASK ((1 << RCU_SEQ_CTR_SHIFT) - 1) + /* Exported common interfaces */ void call_rcu(struct rcu_head *head, rcu_callback_t func); void rcu_barrier_tasks(void); |