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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2008-05-12 23:21:05 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-05-19 12:01:37 +0400 |
| commit | 32300751b4079cb5688453baa94711579d4285d5 (patch) | |
| tree | 05a8d7d163b4878e79332a59940e6baa4efb1318 /Documentation/RCU/NMI-RCU.txt | |
| parent | 2326974df29988181b6b69ed6fbf42b17adf916f (diff) | |
| download | linux-32300751b4079cb5688453baa94711579d4285d5.tar.xz | |
sched: 1Q08 RCU doc update, add call_rcu_sched()
Long-delayed update to the RCU documentation, including adding the new
call_rcu_sched() and rcu_barrier_sched() APIs.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation/RCU/NMI-RCU.txt')
| -rw-r--r-- | Documentation/RCU/NMI-RCU.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt index c64158ecde43..a6d32e65d222 100644 --- a/Documentation/RCU/NMI-RCU.txt +++ b/Documentation/RCU/NMI-RCU.txt @@ -93,6 +93,9 @@ Since NMI handlers disable preemption, synchronize_sched() is guaranteed 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. +Important note: for this to work, the architecture in question must +invoke irq_enter() and irq_exit() on NMI entry and exit, respectively. + Answer to Quick Quiz |