summaryrefslogtreecommitdiffstats
path: root/Documentation/RCU
diff options
context:
space:
mode:
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-08-25 15:27:40 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-09-23 07:42:23 -0700
commit60f53782c51f27c695840ce90c6c432284319eef (patch)
treedaf20b20a35f09ecfa214127cf3c676f12c4edd1 /Documentation/RCU
parent2caa1e4432be7260dca60c3de6949b77eb007515 (diff)
downloadlinux-60f53782c51f27c695840ce90c6c432284319eef.tar.bz2
rcu: Prevent initialization race in rcutorture kthreads
When you do something like "t = kthread_run(...)", it is possible that the kthread will start running before the assignment to "t" happens. If the child kthread expects to find a pointer to its task_struct in "t", it will then be fatally disappointed. This commit therefore switches such cases to kthread_create() followed by wake_up_process(), guaranteeing that the assignment happens before the child kthread starts running. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/RCU')
0 files changed, 0 insertions, 0 deletions