tracing: replace the crude (unsigned) -1 hackery

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Impact: cleanup

The command line recorder uses (unsigned) -1 to mark non mapped
entries in the pid to command line maps. The validity check is
completely unintuitive: idx >= SAVED_CMDLINES

There is no need for such casting games. Use a constant to mark
unmapped entries and check for that constant to make the code readable
and understandable.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <srostedt@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

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Thomas Gleixner 2009-03-18 09:03:19 +01:00 • committed by Ingo Molnar

parent 18aecd362a

commit 2c7eea4c62

1 changed files with 7 additions and 6 deletions

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kernel/trace/trace.c

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