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authorJens Axboe <jaxboe@fusionio.com>2011-04-19 03:10:35 -0400
committerJens Axboe <jaxboe@fusionio.com>2011-04-19 03:10:35 -0400
commit5f45c69589b7d2953584e6cd0b31e35dbe960ad0 (patch)
tree7f920cebcbbe6a1435975e355cee15289ddbc428 /drivers/leds
parentbd900d4580107c899d43b262fbbd995f11097a43 (diff)
cfq-iosched: read_lock() does not always imply rcu_read_lock()
For some configurations of CONFIG_PREEMPT that is not true. So get rid of __call_for_each_cic() and always uses the explicitly rcu_read_lock() protected call_for_each_cic() instead. This fixes a potential bug related to IO scheduler removal or online switching. Thanks to Paul McKenney for clarifying this. Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'drivers/leds')
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