Hi list,
This patch set updates a few outdated links/sections in the documents of RCU.
Please take a look.
--
Junchang Wang (2):
whatisRCU.txt: correct outdated links
torture.txt: update the list of supported torture types
Documentation/RCU/torture.txt | 15 +++
Documentation/
Fix outdated links in whatisRCU.txt.
Signed-off-by: Junchang Wang
---
Documentation/RCU/whatisRCU.txt | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 4a68543..1ace208 100644
--- a/Documentation/RCU/wh
Torture types "rcu_bh" and "sched" were removed in commit "c770c82a23".
The name of torture type "rcu_busted" was changed to "busted" in commit
"b3c983142d". Two other types, "srcud" and "busted_srcud" were added in
commits "ca1d51ed98" and "2397d072f7", respectively. This patch updates
torture.txt
Happy new year!
This series make some improments for the kernel latency tracers, especilly
for the wakeup tracers. The latency tracers will show us more useful
information. With this series, the wakeup tracers look like this
when display-graph is enabled:
# tracer: wakeup
#
# wakeup latency trace
When function_graph is used for latency tracers, relative timestamp
is more straightforward than absolute timestamp as function trace
does. This change adds relative timestamp support to function_graph
and applies to latency tracers (wakeup and irqsoff).
Signed-off-by: Changbin Du
---
kernel/tra
Add these info fields to funcgraph wakeup tracers:
o Show CPU info since the waker could be on a different CPU.
o Show function duration and overhead.
o Show IRQ markers.
Signed-off-by: Changbin Du
---
kernel/trace/trace_sched_wakeup.c | 5 -
1 file changed, 4 insertions(+), 1 deletion
This add an example about how to use funcgraph with latency tracers.
Signed-off-by: Changbin Du
---
Documentation/trace/ftrace.rst | 51 ++
1 file changed, 51 insertions(+)
diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst
index 0131df7
Don't mix context flags with function duration info. Now the output looks
like this:
\# tracer: wakeup
\#
\# wakeup latency trace v1.1.5 on 4.20.0+
\#
\# latency: 593 us, #674/674, CPU#0 | (M:desktop VP:0, KP:0, SP:0 HP:0 #P:4)
\
This align the behavior of wakeup tracers with irqsoff latency tracer
that we record stacktrace at the beginning and end of waking up. The
stacktrace shows us what is happening in the kernel.
Signed-off-by: Changbin Du
---
kernel/trace/trace_sched_wakeup.c | 4
1 file changed, 4 insertions(
On Tue, Jan 01, 2019 at 10:03:19PM +0800, Junchang Wang wrote:
> Fix outdated links in whatisRCU.txt.
>
> Signed-off-by: Junchang Wang
Queued and pushed, thank you!
Thanx, Paul
> ---
> Documentation/RCU/whatisRCU.txt | 4 ++--
> 1 file c
On Tue, Jan 01, 2019 at 10:03:20PM +0800, Junchang Wang wrote:
> Torture types "rcu_bh" and "sched" were removed in commit "c770c82a23".
> The name of torture type "rcu_busted" was changed to "busted" in commit
> "b3c983142d". Two other types, "srcud" and "busted_srcud" were added in
> commits "ca1
After 7ca01926463a, legacy rq tagging was removed, so block/blk-tag.c
does not exists anymore. When generating pdfdocs, sphinx complains about
this missing file:
Error: Cannot open file ./block/blk-tag.c
Error: Cannot open file ./block/blk-tag.c
Error: Cannot open file ./block/blk-tag.c
Error: Can
Patch sent by mistake. The commit message should be:
"Docs/kernel-api.rst: Remove blk-tag.c reference"
Thanks,
On Tue, Jan 01, 2019 at 10:40:14PM -0200, Marcos Paulo de Souza wrote:
> After 7ca01926463a, legacy rq tagging was removed, so block/blk-tag.c
> does not exists anymore. When generating
On Wed, Jan 2, 2019 at 1:54 AM Paul E. McKenney wrote:
>
> On Tue, Jan 01, 2019 at 10:03:20PM +0800, Junchang Wang wrote:
> > Torture types "rcu_bh" and "sched" were removed in commit "c770c82a23".
> > The name of torture type "rcu_busted" was changed to "busted" in commit
> > "b3c983142d". Two ot
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