Re: [PATCH] mm: make page pfmemalloc check more robust

From: Eric Dumazet
Date: Thu Aug 13 2015 - 10:41:04 EST

On Thu, 2015-08-13 at 11:13 +0200, Vlastimil Babka wrote:

> Given that this apparently isn't the first case of this localhost issue,
> I wonder if network code should just clear skb->pfmemalloc during send
> (or maybe just send over localhost). That would be probably easier than
> distinguish the __skb_fill_page_desc() callers for send vs receive.

Would this still needed after this patch ?

It is sad we do not have a SNMP counter to at least count how often we
drop skb because pfmemalloc is set.

I'll provide such a patch.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at