Messages in this thread | | | Date | Thu, 31 Aug 2006 09:59:47 +0530 | From | "Devesh Sharma" <> | Subject | Question about Atomic operations |
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Hello Arjan and list,
The documentation related to atomic operations says that the following functions should be called in SMP safe maner
void atomic_add(int i, atomic_t *v); void atomic_sub(int i, atomic_t *v); void atomic_inc(atomic_t *v); void atomic_dec(atomic_t *v);
since the implementation of these functions are prefixed with LOCK prefix (On i386 arch.) which either asserts LOCK# signal or performs cache locking which gauarentees coherency.
Then why these functions should be called in SMP safe manner? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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