Messages in this thread | | | Subject | Re: [PATCH v5 2/2] pipe: use __pipe_{lock,unlock} instead of spinlock | From | Hongchen Zhang <> | Date | Sat, 19 Aug 2023 11:28:58 +0800 |
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Hi David,
On 2023/8/14 pm 4:47, David Howells wrote: > Hongchen Zhang <zhanghongchen@loongson.cn> wrote: > >> - spin_lock_irq(&pipe->rd_wait.lock); >> + __pipe_lock(pipe); > I changed the code and the post_one_notification is not called inside spin lock ,please check this patch again. > This mustn't sleep. post_one_notification() needs to be callable with a > spinlock held. > > David >
---- Best Regards Hongchen Zhang
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