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rcu: Fix RCU's NMI documentation 

It has long been the case that the architecture must call nmi_enter()
and nmi_exit() rather than irq_enter() and irq_exit() in order to
permit RCU read-side critical sections in NMIs.  Catch the documentation
up with reality.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
This commit is contained in:
Paul E. McKenney 2011-06-07 17:05:34 -07:00
parent bdf2a43649
commit b15a2e7d16
1 changed files with 1 additions and 1 deletions
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2
Documentation/RCU/NMI-RCU.txt
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@ -95,7 +95,7 @@ not to return until all ongoing NMI handlers exit. It is therefore safe
to free up the handler's data as soon as synchronize_sched() returns. to free up the handler's data as soon as synchronize_sched() returns.
Important note: for this to work, the architecture in question must Important note: for this to work, the architecture in question must
invoke irq_enter() and irq_exit() on NMI entry and exit, respectively. invoke nmi_enter() and nmi_exit() on NMI entry and exit, respectively.
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