ftrace: take advantage of variable length entries
authorSteven Rostedt <rostedt@goodmis.org>
Tue, 30 Sep 2008 03:02:42 +0000 (23:02 -0400)
committerIngo Molnar <mingo@elte.hu>
Tue, 14 Oct 2008 08:38:59 +0000 (10:38 +0200)
commit777e208d40d0953efc6fb4ab58590da3f7d8f02d
tree1e5940ccafd26c958b358f7ce85926659f12c37d
parent3928a8a2d98081d1bc3c0a84a2d70e29b90ecf1c
ftrace: take advantage of variable length entries

Now that the underlining ring buffer for ftrace now hold variable length
entries, we can take advantage of this by only storing the size of the
actual event into the buffer. This happens to increase the number of
entries in the buffer dramatically.

We can also get rid of the "trace_cont" operation, but I'm keeping that
until we have no more users. Some of the ftrace tracers can now change
their code to adapt to this new feature.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/trace/trace.c
kernel/trace/trace.h
kernel/trace/trace_boot.c
kernel/trace/trace_mmiotrace.c