Messages in this thread | | | Date | Tue, 13 Jan 2009 14:42:08 -0800 (PST) | Subject | Re: lib/klist.c: bit 0 in pointer can't be used as flag | From | David Miller <> |
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From: Jesper Nilsson <Jesper.Nilsson@axis.com> Date: Tue, 13 Jan 2009 23:12:35 +0100
> Can you recall another place where this trick is used? > > It seems that rt_mutex uses the same trick (with the lowest 2bits) > but AFAICT that's something we don't use on CRIS.
Sparsemem uses it.
The TRIE based routing tables uses it.
All of the IPV4/IPV6 socket hash tables use it as of 2.6.29-rc1.
You really can't avoid supporting this. Why doesn't kmalloc return properly aligned objects on CRIS?
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