Messages in this thread | | | Date | Thu, 06 Jul 2006 16:27:55 -0400 | From | Mark Lord <> | Subject | Re: [patch] spinlocks: remove 'volatile' |
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Linus Torvalds wrote: > > On Thu, 6 Jul 2006, Chris Friesen wrote: >> The C standard requires the use of volatile for signal handlers and setjmp. > > Actually, the C standard requires "sigatomic_t".
That's sig_atomic_t, which simply guarantees that the data item can be read or written indivisibly with respect to signal handlers.
The standard goes on to suggest using it in combination with volatile as needed.
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