net: skb ftracer - Add config option to enable new ftracer (v3)

skb allocation / consumption corelator - Add config option

This patch adds a Kconfig option to enable the addtition of the skb source
tracer.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>

 Kconfig |   10 ++++++++++
 1 file changed, 10 insertions(+)
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 019f380fd764..f09d7635c0e1 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -234,6 +234,16 @@ config BOOT_TRACER
           You must pass in initcall_debug and ftrace=initcall to the kernel
           command line to enable this on bootup.
 
+config SKB_SOURCES_TRACER
+        bool "Trace skb source information"
+        select GENERIC_TRACER
+        help
+           This tracer helps developers/sysadmins correlate skb allocation and
+           consumption.  The idea being that some processes will primarily consume data
+           that was allocated on certain numa nodes.  By being able to visualize which
+           nodes the data was allocated on, a sysadmin or developer can optimize the
+           scheduling of those processes to cut back on cross node chatter.
+
 config TRACE_BRANCH_PROFILING
         bool
         select GENERIC_TRACER