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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2011-06-16 08:07:55 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-09-29 06:36:35 +0200 |
| commit | d5988af53102f3b73e5e0788be024ccfa51869de (patch) | |
| tree | 6d99aa95f57b06d8bd88c412c51d624321fafcfd /Documentation/RCU/trace.txt | |
| parent | rcu: Avoid unnecessary self-wakeup of per-CPU kthreads (diff) | |
| download | linux-d5988af53102f3b73e5e0788be024ccfa51869de.tar.xz linux-d5988af53102f3b73e5e0788be024ccfa51869de.zip | |
rcu: Update documentation to flag RCU_BOOST trace information
Call out the RCU_TRACE information that is provided only in kernels
built with RCU_BOOST.
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'Documentation/RCU/trace.txt')
| -rw-r--r-- | Documentation/RCU/trace.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt index 8173cec473aa..a67af0a39ded 100644 --- a/Documentation/RCU/trace.txt +++ b/Documentation/RCU/trace.txt @@ -184,10 +184,14 @@ o "kt" is the per-CPU kernel-thread state. The digit preceding The number after the final slash is the CPU that the kthread is actually running on. + This field is displayed only for CONFIG_RCU_BOOST kernels. + o "ktl" is the low-order 16 bits (in hexadecimal) of the count of the number of times that this CPU's per-CPU kthread has gone through its loop servicing invoke_rcu_cpu_kthread() requests. + This field is displayed only for CONFIG_RCU_BOOST kernels. + o "b" is the batch limit for this CPU. If more than this number of RCU callbacks is ready to invoke, then the remainder will be deferred. |