Messages in this thread | | | From | "MEHTA,HIREN (A-SanJose,ex1)" <> | Subject | spin locks and timers in scsi hba driver | Date | Mon, 15 Oct 2001 16:01:55 -0600 |
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Hi List,
I want to make sure that my hba-driver timers do run when the uppar scsi-layer calls any of the error handler entry points and while I am still doing the error handling. As I know, scsi-layer calls spin_lock_irqsave(&io_request_lock, flags) before calling the error handlers and they call spin_unlock_irqrestore(&io_request_lock, flags) after returning from the error handlers. So, inside the error handlers, I call spin_unlock_irq(&io_request_lock); wait for the timers to run, and the again call spin_lock_irq(&io_request_lock).
But this does not seem to be working. Even after I call spin_unlock_irq(&io_request_lock), I don't see my timer routines getting called. Can somebody advise me on how to achive this ? I cannot use spin_unlock_irqrestore() as I do not have the saved 'flags' value.
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