Messages in this thread | | | Subject | Re: [PATCH/RESEND] drivers/net/ethernet: dev_alloc_skb to netdev_alloc_skb | From | Eric Dumazet <> | Date | Mon, 23 Jan 2012 22:15:39 +0100 |
| |
Le mardi 24 janvier 2012 à 02:11 +0530, Pradeep A. Dalvi a écrit :
> Aah! Is that really needed? Cause from my understanding, priority GFP > flag __GFP_DMA is anyway negated in __alloc_skb, in a way from all > sources i.e. netdev_alloc_skb or dev_alloc_skb or even alloc_skb. Am I > missing something here?
You should read the whole __alloc_skb() function and not only half of it.
skb itself is allocated in the normal memory pool, (not GFP_DMA), since it has no hardware requirement for a kernel structure.
But skb->head _is_ allocated with GFP_DMA if driver requested it.
-- 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/
| |