rcu: Add debug checks to TREE_PREEMPT_RCU for premature grace periods

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Check to make sure that there are no blocked tasks for the previous
grace period while initializing for the next grace period, verify
that rcu_preempt_qs() is given the correct CPU number and is never
called for an offline CPU.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
LKML-Reference: <12528585111986-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Paul E. McKenney 2009-09-13 09:15:09 -07:00 • committed by Ingo Molnar

parent bbe3eae8bb

commit b0e165c035

2 changed files with 27 additions and 0 deletions

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2

kernel/rcutree.c

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25

kernel/rcutree_plugin.h

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