Alan Cox <[email protected]> wrote: > spin_lock(&foo->lock); > writel(0, &foo->regnum); I presume there only needs to be an mmiowb() here if you've got the appropriate CPU's I/O memory window set up to be weakly ordered. > writel(1, &foo->data); > mmiowb(); > spin_unlock(&foo->lock); David - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] 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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