linux/include/trace
Romain Izard df02df0a92 trace: module: Maintain a valid user count
commit 098507ae3e upstream.

The replacement of the 'count' variable by two variables 'incs' and
'decs' to resolve some race conditions during module unloading was done
in parallel with some cleanup in the trace subsystem, and was integrated
as a merge.

Unfortunately, the formula for this replacement was wrong in the tracing
code, and the refcount in the traces was not usable as a result.

Use 'count = incs - decs' to compute the user count.

Link: http://lkml.kernel.org/p/1393924179-9147-1-git-send-email-romain.izard.pro@gmail.com

Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Fixes: c1ab9cab75 "merge conflict resolution"
Signed-off-by: Romain Izard <romain.izard.pro@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-07 10:28:20 -07:00
..
events trace: module: Maintain a valid user count 2014-06-07 10:28:20 -07:00
define_trace.h tracing: Add DEFINE_EVENT_FN() macro 2013-06-20 22:24:32 -07:00
ftrace.h tracing: Fix array size mismatch in format string 2014-03-20 13:21:05 -04:00
syscall.h tracing: Add missing syscall_metadata comment 2013-07-01 20:34:25 -04:00