[Devel] Re: [PATCH 1/7] introduce atomic_dec_and_lock_irqsave()
zippel at linux-m68k.org
Wed Aug 30 03:51:28 PDT 2006
On Wed, 30 Aug 2006, Oleg Nesterov wrote:
> > Why does this need protection against interrupts?
> uidhash_lock can be taken from irq context. For example, delayed_put_task_struct()
> does __put_task_struct()->free_uid().
AFAICT it's called via rcu, does that mean anything released via rcu has
to be protected against interrupts?
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