From: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
Date: Wed, 12 Nov 2014 16:35:48 +0000 (-0500)
Subject: blktrace/tracing: Use trace_seq_has_overflowed() helper function
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~136^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f4a1d08ce65d7156504f2f0eac26f47dfc9120e6;p=pandora-kernel.git

blktrace/tracing: Use trace_seq_has_overflowed() helper function

Checking the return code of every trace_seq_printf() operation and having
to return early if it overflowed makes the code messy.

Using the new trace_seq_has_overflowed() and trace_handle_return() functions
allows us to clean up the code.

In the future, trace_seq_printf() and friends will be turning into void
functions and not returning a value. The trace_seq_has_overflowed() is to
be used instead. This cleanup allows that change to take place.

Cc: Jens Axboe <axboe@fb.com>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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