Re: [PATCH RT] net: move xmit_recursion to per-task variable on -RT
From: Eric Dumazet <hidden>
Date: 2016-01-14 22:20:09
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On Thu, 2016-01-14 at 23:02 +0100, Hannes Frederic Sowa wrote:
We are just adding a second recursion limit solely to openvswitch which has the same problem: https://patchwork.ozlabs.org/patch/566769/ This time also we depend on rcu_read_lock marking the section being nonpreemptible. Nice would be a more generic solution here which doesn't need to always add something to *current.
Note that rcu_read_lock() does not imply that preemption is disabled.