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authorDavidlohr Bueso <dave@stgolabs.net>2014-09-11 20:40:21 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-09-16 13:41:06 -0700
commitd36a7a0d5e8b5bff1671723d733eb61621b0cee4 (patch)
tree17cbd1c2542a4b587890a593446757606a4a7834 /Documentation/locking
parent1e6757a92189278c484799ea98fc69bdc528940e (diff)
torture: Address race in module cleanup
When performing module cleanups by calling torture_cleanup() the 'torture_type' string in nullified However, callers are not necessarily done, and might still need to reference the variable. This impacts both rcutorture and locktorture, causing printing things like: [ 94.226618] (null)-torture: Stopping lock_torture_writer task [ 94.226624] (null)-torture: Stopping lock_torture_stats task Thus delay this operation until the very end of the cleanup process. The consequence (which shouldn't matter for this kid of program) is, of course, that we delay the window between rmmod and modprobing, for instance in module_torture_begin(). Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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