This is intended for use in loops which read data protected by RCU and may have a large number of iterations. Such an example is dumping the list of connections known to IPVS: ip_vs_conn_array() and ip_vs_conn_seq_next().
As suggested by Eric Dumazet. Cc: Eric Dumazet <[email protected]> Cc: Julian Anastasov <[email protected]> Signed-off-by: Simon Horman <[email protected]> --- include/linux/sched.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/sched.h b/include/linux/sched.h index e692a02..7eec4c7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2787,3 +2787,12 @@ static inline unsigned long rlimit_max(unsigned int limit) } #endif + +static void inline cond_resched_rcu_lock(void) +{ + if (need_resched()) { + rcu_read_unlock(); + cond_resched(); + rcu_read_lock(); + } +} -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
