Messages in this thread | | | Subject | Re: [PATCH] phonet: Check input from user before allocating | Date | Tue, 03 Apr 2012 08:36:20 +0200 | From | Rémi Denis-Courmont <> |
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On Mon, 02 Apr 2012 17:40:06 -0400 (EDT), David Miller <davem@davemloft.net> wrote: > UDP generates a fragment list of MTU sized SKBs. > > Phonet could avoid the large allocations by building page based > SKBs.
Oh right. And Phonet devices don't support scatter/gather, so that I guess that would merely delay the problem.
Also sendmsg() code would need to be reectored to look up the output device and then the MTU before allocating the socket buffer. This will only work if the default MTU is reduced first :/
-- Rémi Denis-Courmont Sent from my collocated server -- 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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