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| author | Paul Mackerras <paulus@samba.org> | 2006-02-08 09:43:08 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-02-08 09:43:08 +1100 |
| commit | 8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d (patch) | |
| tree | a3c34ad86ccdc904bb43af6cd1cb163231c29276 /include/linux/rcupdate.h | |
| parent | 076d022c566fddde41fd4a858dd24bacad8304d7 (diff) | |
| parent | e060e084e7d9e1c62d02cb6b8d3fe07db5317eaa (diff) | |
| download | kernel-crypto-8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d.tar.gz kernel-crypto-8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d.tar.xz kernel-crypto-8f75015f33c3005e0bbf83ffc0d5e0b4262cc03d.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Diffstat (limited to 'include/linux/rcupdate.h')
| -rw-r--r-- | include/linux/rcupdate.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 981f9aa4335..b87aefa082e 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -240,11 +240,14 @@ extern int rcu_pending(int cpu); * This means that all preempt_disable code sequences, including NMI and * hardware-interrupt handlers, in progress on entry will have completed * before this primitive returns. However, this does not guarantee that - * softirq handlers will have completed, since in some kernels + * softirq handlers will have completed, since in some kernels, these + * handlers can run in process context, and can block. * * This primitive provides the guarantees made by the (deprecated) * synchronize_kernel() API. In contrast, synchronize_rcu() only * guarantees that rcu_read_lock() sections will have completed. + * In "classic RCU", these two guarantees happen to be one and + * the same, but can differ in realtime RCU implementations. */ #define synchronize_sched() synchronize_rcu() |