1
linux/include/trace
Namhyung Kim c09c47caed blktrace: add FLUSH/FUA support
Add FLUSH/FUA support to blktrace. As FLUSH precedes WRITE and/or
FUA follows WRITE, use the same 'F' flag for both cases and
distinguish them by their (relative) position. The end results
look like (other flags might be shown also):

 - WRITE:            W
 - WRITE_FLUSH:      FW
 - WRITE_FUA:        WF
 - WRITE_FLUSH_FUA:  FWF

Note that we reuse TC_BARRIER due to lack of bit space of act_mask
so that the older versions of blktrace tools will report flush
requests as barriers from now on.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-11 10:36:05 +02:00
..
events blktrace: add FLUSH/FUA support 2011-08-11 10:36:05 +02:00
define_trace.h tracing: Include module.h in define_trace.h 2011-01-07 15:44:56 -05:00
ftrace.h tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine 2011-05-25 22:13:44 -04:00
syscall.h tracing: Use a global field list for all syscall exit events 2010-06-28 17:12:44 -04:00