sunrpc: Save remote presentation address in svc_xprt for trace events

Browse source

TP_printk defines a format string that is passed to user space for
converting raw trace event records to something human-readable.

My user space's printf (Oracle Linux 7), however, does not have a
%pI format specifier. The result is that what is supposed to be an
IP address in the output of "trace-cmd report" is just a string that
says the field couldn't be displayed.

To fix this, adopt the same approach as the client: maintain a pre-
formated presentation address for occasions when %pI is not
available.

The location of the trace_svc_send trace point is adjusted so that
rqst->rq_xprt is not NULL when the trace event is recorded.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

...

This commit is contained in:

Chuck Lever 2018-03-27 10:51:00 -04:00 • committed by J. Bruce Fields

parent 41f306d0c2

commit ece200ddd5

5 changed files with 43 additions and 58 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

include/linux/sunrpc/svc_xprt.h

View file

89

include/trace/events/sunrpc.h

View file