Re: Avoiding external fragmentation with a placement policyVersion 12

[David S. Miller]

From: Dave Hansen <haveblue@xxxxxxxxxx>
Date: Fri, 03 Jun 2005 09:43:00 -0700

> Are those loopback allocations GFP_KERNEL?

It depends :-)  Most of the time, the packets will be
allocated at sendmsg() time for the user, and thus GFP_KERNEL.

But the flags may be different if, for example, the packet
is being allocated for the NFS client/server code, or some
asynchronous packet generated at software interrupt time
(TCP ACKs, ICMP replies, etc.).
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