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(parent: 5fd4dc0) | patch
rcu: Protect rcu_node accesses during CPU stall warnings
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Fri, 10 Aug 2012 23:55:59 +0000 (16:55 -0700)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Sun, 23 Sep 2012 14:42:51 +0000 (07:42 -0700)
commitc8020a67e625c714c4dbedc8ae2944b461e204ec
tree12ad0e02b6e30dffd8c7e2b24cdb278a6b799ad4tree | snapshot (tar.gz zip)
parent5fd4dc068c4ded1339180dbcd1a99e15b1c0a728commit | diff
rcu: Protect rcu_node accesses during CPU stall warnings

The print_other_cpu_stall() function accesses a number of rcu_node
fields without protection from the ->lock.  In theory, this is not
a problem because the fields accessed are all integers, but in
practice the compiler can get nasty.  Therefore, the commit extends
the existing critical section to cover the entire loop body.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcutree.c diff | blob | blame | history
kernel source for telekom puls (alcatel/mediatek)