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documentation: Update RCU requirements based on expedited changes
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Sat, 7 Nov 2015 07:05:32 +0000 (23:05 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Sat, 5 Dec 2015 20:34:32 +0000 (12:34 -0800)
commitf741c55899ccb507125423e8acd00ecbbd6a6ed4
treebd0fa2e58b367e35dae47101ebd0de4b28642e9ctree | snapshot
parent696788c012b37ae0c00137abc26faeec0146d49dcommit | diff
documentation: Update RCU requirements based on expedited changes

Because RCU-sched expedited grace periods now use IPIs and interact
with rcu_read_unlock(), it is no longer sufficient to disable preemption
across RCU read-side critical sections that acquire and hold scheduler
locks.  It is now necessary to instead disable interrupts.  This commit
documents this change.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Documentation/RCU/Design/Requirements/Requirements.html diff | blob | history
Documentation/RCU/Design/Requirements/Requirements.htmlx diff | blob | history
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