Revert "Move xen patchset to new version's subdir."

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.31 / patches.trace / lttng-instrumentation-net.patch

diff --git a/src/patches/suse-2.6.27.31/patches.trace/lttng-instrumentation-net.patch b/src/patches/suse-2.6.27.31/patches.trace/lttng-instrumentation-net.patch
deleted file mode 100644 (file)
index 200e6b6..0000000
--- a/src/patches/suse-2.6.27.31/patches.trace/lttng-instrumentation-net.patch
+++ /dev/null
@@ -1,84 +0,0 @@
-From: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
-Subject: LTTng instrumentation - net
-
-Original patch header:
-  LTTng instrumentation - net
-  
-  Network device activity instrumentation (xmit/receive). Allows to detect when a
-  packet had arrived on the network card or when it is going to be sent. This is
-  the instrumentation point outside of the drivers that is the closest to the
-  hardware. It allows to detect the amount of time taken by a packet to go through
-  the kernel between the system call and the actual delivery to the network card
-  (given that system calls are instrumented).
-  
-  Those tracepoints are used by LTTng.
-  
-  About the performance impact of tracepoints (which is comparable to markers),
-  even without immediate values optimizations, tests done by Hideo Aoki on ia64
-  show no regression. His test case was using hackbench on a kernel where
-  scheduler instrumentation (about 5 events in code scheduler code) was added.
-  See the "Tracepoints" patch header for performance result detail.
-  
-  Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
-  CC: Andrew Morton <akpm@linux-foundation.org>
-  CC: netdev@vger.kernel.org
-  CC: Jeff Garzik <jgarzik@pobox.com>
-  CC: Masami Hiramatsu <mhiramat@redhat.com>
-  CC: 'Peter Zijlstra' <peterz@infradead.org>
-  CC: "Frank Ch. Eigler" <fche@redhat.com>
-  CC: 'Ingo Molnar' <mingo@elte.hu>
-  CC: 'Hideo AOKI' <haoki@redhat.com>
-  CC: Takashi Nishiie <t-nishiie@np.css.fujitsu.com>
-  CC: 'Steven Rostedt' <rostedt@goodmis.org>
-  CC: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
-
-Acked-by: Jan Blunck <jblunck@suse.de>
---- 
----
- include/trace/net.h |   14 ++++++++++++++
- net/core/dev.c      |    3 +++
- 2 files changed, 17 insertions(+)
-
---- /dev/null
-+++ b/include/trace/net.h
-@@ -0,0 +1,14 @@
-+#ifndef _TRACE_NET_H
-+#define _TRACE_NET_H
-+
-+#include <net/sock.h>
-+#include <linux/tracepoint.h>
-+
-+DEFINE_TRACE(net_dev_xmit,
-+      TPPROTO(struct sk_buff *skb),
-+      TPARGS(skb));
-+DEFINE_TRACE(net_dev_receive,
-+      TPPROTO(struct sk_buff *skb),
-+      TPARGS(skb));
-+
-+#endif
---- a/net/core/dev.c
-+++ b/net/core/dev.c
-@@ -127,6 +127,7 @@
- #include <linux/in.h>
- #include <linux/jhash.h>
- #include <linux/random.h>
-+#include <trace/net.h>
- 
- #include "net-sysfs.h"
- 
-@@ -1794,6 +1795,7 @@ int dev_queue_xmit(struct sk_buff *skb)
-       }
- 
- gso:
-+      trace_net_dev_xmit(skb);
-       /* Disable soft irqs for various locks below. Also
-        * stops preemption for RCU.
-        */
-@@ -2215,6 +2217,7 @@ int netif_receive_skb(struct sk_buff *sk
- 
-       __get_cpu_var(netdev_rx_stat).total++;
- 
-+      trace_net_dev_receive(skb);
-       skb_reset_network_header(skb);
-       skb_reset_transport_header(skb);
-       skb->mac_len = skb->network_header - skb->mac_header;