Messages in this thread | | | Subject | Re: [PATCH 4/4] net,rcu: don't assume the size of struct rcu_head | From | Eric Dumazet <> | Date | Tue, 01 Mar 2011 09:20:55 +0100 |
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Le mardi 01 mars 2011 à 00:16 -0800, David Miller a écrit : > From: Lai Jiangshan <laijs@cn.fujitsu.com> > Date: Tue, 01 Mar 2011 16:03:44 +0800 > > > > > struct dst_entry assumes the size of struct rcu_head as 2 * sizeof(long) > > and manually adds pads for aligning for "__refcnt". > > > > When the size of struct rcu_head is changed, these manual padding > > is wrong. Use __attribute__((aligned (64))) instead. > > > > Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> > > We don't want to use the align if it's going to waste lots of space. > > Instead we want to rearrange the structure so that the alignment comes > more cheaply.
Oh well, I should have read your answer before sending mine :)
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