linux/kernel/rcu
Paul E. McKenney 251c617c75 rcu: Make expedited RCU-preempt stall warnings count accurately
Currently, synchronize_sched_expedited_wait() simply sets the ndetected
variable to the rcu_print_task_exp_stall() return value.  This means
that if the last rcu_node structure has no stalled tasks, record of
any stalled tasks in previous rcu_node structures is lost, which can
in turn result in failure to dump out the blocking rcu_node structures.
Or could, had the test been correct.

This commit therefore adds the return value of rcu_print_task_exp_stall()
to ndetected and corrects the later test for ndetected.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2016-03-31 13:34:03 -07:00
..
Makefile kernel: add kcov code coverage 2016-03-22 15:36:02 -07:00
rcu.h tiny_rcu: Directly force QS when call_rcu_[bh|sched]() on idle_task 2015-01-06 11:01:12 -08:00
rcutorture.c rcu: Consolidate dumping of ftrace buffer 2016-03-31 13:29:08 -07:00
srcu.c rcu: Add rcu_normal kernel parameter to suppress expediting 2015-12-04 12:26:53 -08:00
sync.c rcu_sync: Cleanup the CONFIG_PROVE_RCU checks 2015-10-06 11:25:45 -07:00
tiny_plugin.h rcu: Make rcu/tiny_plugin.h explicitly non-modular 2016-02-23 19:59:55 -08:00
tiny.c rcu: Use rcu_callback_t in call_rcu*() and friends 2015-10-06 11:08:05 -07:00
tree_plugin.h Merge commit 'fixes.2015.02.23a' into core/rcu 2016-03-15 09:01:06 +01:00
tree_trace.c Merge branches 'doc.2015.12.05a', 'exp.2015.12.07a', 'fixes.2015.12.07a', 'list.2015.12.04b' and 'torture.2015.12.05a' into HEAD 2015-12-07 17:02:54 -08:00
tree.c rcu: Make expedited RCU-preempt stall warnings count accurately 2016-03-31 13:34:03 -07:00
tree.h Merge commit 'fixes.2015.02.23a' into core/rcu 2016-03-15 09:01:06 +01:00
update.c rcu: Export rcu_gp_is_normal() 2016-02-23 20:04:51 -08:00