Messages in this thread | | | Date | Tue, 25 Feb 2003 20:14:55 +0100 (CET) | From | Roman Zippel <> | Subject | Re: atomic_t (24 bits???) |
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Hi,
On Tue, 25 Feb 2003, Richard B. Johnson wrote:
> In ../linux/include/asm/atomic.h, for versions 2.4.18 and > above as far as I've checked, there are repeated warnings > "Note that the guaranteed useful range of an atomic_t is > only 24 bits." > > I fail to see any reason why as atomic_t is typdefed to a > volatile int which, on ix86 seems to be 32 bits. > > Does anybody know if this is just some old comments from a > previous atomic_t type of, perhaps, char[3]?
include/asm-sparc/atomic.h
bye, Roman
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