android_kernel_xiaomi_sm8350/kernel/rcu
Paul E. McKenney abaa93d9e1 rcu: Simplify priority boosting by putting rt_mutex in rcu_node
RCU priority boosting currently checks for boosting via a pointer in
task_struct.  However, this is not needed: As Oleg noted, if the
rt_mutex is placed in the rcu_node instead of on the booster's stack,
the boostee can simply check it see if it owns the lock.  This commit
makes this change, shrinking task_struct by one pointer and the kernel
by thirteen lines.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2014-07-09 09:15:01 -07:00
..
Makefile rcutorture: Abstract rcu_torture_random() 2014-02-23 09:00:58 -08:00
rcu.h rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone 2014-02-26 06:35:18 -08:00
rcutorture.c torture: Check for multiple concurrent torture tests 2014-05-14 09:46:29 -07:00
srcu.c rcu: Eliminate read-modify-write ACCESS_ONCE() calls 2014-07-09 09:14:49 -07:00
tiny_plugin.h rcu: Protect uses of ->jiffies_stall with ACCESS_ONCE() 2014-04-29 08:44:41 -07:00
tiny.c rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone 2014-02-26 06:35:18 -08:00
tree_plugin.h rcu: Simplify priority boosting by putting rt_mutex in rcu_node 2014-07-09 09:15:01 -07:00
tree_trace.c rcu: Stop tracking FSF's postal address 2014-02-17 15:01:37 -08:00
tree.c rcu: Check both root and current rcu_node when setting up future grace period 2014-07-09 09:15:01 -07:00
tree.h rcu: Simplify priority boosting by putting rt_mutex in rcu_node 2014-07-09 09:15:01 -07:00
update.c rcu: Reduce overhead of cond_resched() checks for RCU 2014-06-23 11:19:32 -07:00