Messages in this thread | | | Subject | Re: [PATCH] ext3_clear_inode(): avoid kfree(NULL) | From | Arjan van de Ven <> | Date | Sat, 24 Jun 2006 14:11:43 +0200 |
| |
> > Because at that callsite, NULL is the common case. We avoid a do-nothing > function call most of the time. It's a nano-optimisation.
but a function call is basically free, while an if () is not... even with unlikely()...
sounds like a misoptimization to me.
- 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/
| |