blktrace/tracing: Use trace_seq_has_overflowed() helper function

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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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Steven Rostedt (Red Hat) 2014-11-12 11:35:48 -05:00 • committed by Steven Rostedt

parent 19a7fe2062

commit f4a1d08ce6

1 changed files with 66 additions and 82 deletions

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kernel/trace/blktrace.c

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