blktrace: the ftrace interface needs CONFIG_TRACING
authorArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 26 Jan 2009 18:00:40 +0000 (16:00 -0200)
committerIngo Molnar <mingo@elte.hu>
Tue, 27 Jan 2009 13:30:36 +0000 (14:30 +0100)
commit32c0bd9624115041cfec31c0436995418083090a
tree833dfe1e19338721d1043a2ecfa96a40703c0749
parent157f9c00e88529ed84bd7d581a40d411e5414cf0
blktrace: the ftrace interface needs CONFIG_TRACING

Impact: build fix

Also mention in the help text that blktrace now can be used using
the ftrace interface.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
block/Kconfig