Re: [PATCH V4] POWER: perf_event: Skip updating kernel counters if register value shrinks
From: Eric B Munson <hidden>
Date: 2011-04-27 12:59:37
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On Wed, 27 Apr 2011, David Laight wrote:
quoted
But it isn't, and it doesn't have trouble with 2^32 - 1.what about: prev = 0x00000001 val = 0xffffffff
Result is 0xfffffffe and we are fine.
David
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