Re: [PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue

2015-05-15 Thread Jan Kiszka
On 2015-05-14 21:58, Sebastian Andrzej Siewior wrote: > * Jan Kiszka | 2015-04-23 09:35:59 [+0200]: > >> Instead of turning all irq_work requests into lazy ones on -rt, just >> move their execution from hard into soft-irq context. >> >> This resolves deadlocks of ftrace which will queue work from

Re: [PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue

2015-05-14 Thread Sebastian Andrzej Siewior
* Jan Kiszka | 2015-04-23 09:35:59 [+0200]: >Instead of turning all irq_work requests into lazy ones on -rt, just >move their execution from hard into soft-irq context. > >This resolves deadlocks of ftrace which will queue work from arbitrary >contexts, including those that have locks held that ar

[PATCH v2 RT 3.18] irq_work: Provide a soft-irq based queue

2015-04-23 Thread Jan Kiszka
Instead of turning all irq_work requests into lazy ones on -rt, just move their execution from hard into soft-irq context. This resolves deadlocks of ftrace which will queue work from arbitrary contexts, including those that have locks held that are needed for raising a soft-irq. Signed-off-by: J