Messages in this thread |  | | Subject | Re: [PATCH v4] lib: cpu_rmap: avoid flushing all workqueues | From | Ben Hutchings <> | Date | Wed, 2 Jan 2013 21:54:46 +0000 |
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On Wed, 2013-01-02 at 13:52 -0800, David Decotigny wrote: > In some cases, free_irq_cpu_rmap() is called while holding a lock > (eg. rtnl). This can lead to deadlocks, because it invokes > flush_scheduled_work() which ends up waiting for whole system > workqueue to flush, but some pending works might try to acquire the > lock we are already holding. > > This commit uses reference-counting to replace > irq_run_affinity_notifiers(). It also removes > irq_run_affinity_notifiers() altogether. > > Signed-off-by: David Decotigny <decot@googlers.com> [...]
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
-- Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked.
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