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* atomic_t and atomic_inc
@ 2004-04-22 18:58 Al Niessner
  2004-04-22 20:50 ` Richard B. Johnson
  0 siblings, 1 reply; 3+ messages in thread
From: Al Niessner @ 2004-04-22 18:58 UTC (permalink / raw)
  To: linux-kernel

First, I am not subscribed to this list so please reply to me directly
if you wish a timely response to any questions. In any case, I will lurk
in the archives for responses.

I am using atomic_t to count interrupts from some piece of hardware.
These interrupts come at a fairly high rate -- 10 KHz and higher. The
problem is, will I get increment problem at the limit of atomic_t or
will it wrap around without error? I read the docs (man pages, on-line
api docs, this list and other stuff) and none of them talk about the
behavior of atomic_t at the boundaries. Furthermore, am I guaranteed of
any boundary behavior across platforms?

Thank you in advance for any and all help.

Al Niessner <>
Jet Propulsion Laboratory

All opinions stated above are mine and do not necessarily reflect 
those of JPL or NASA.

| dS | >= 0

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2004-05-15 22:54 UTC | newest]

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2004-04-22 18:58 atomic_t and atomic_inc Al Niessner
2004-04-22 20:50 ` Richard B. Johnson
2004-05-15 22:54   ` Jamie Lokier

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