Messages in this thread |  | | | Date | Fri, 29 Oct 2010 17:24:43 +0100 | | From | Alan Cox <> | | Subject | Re: [PATCH 5/9] mfd: Add UART support for the ST-Ericsson CG2900. |
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> The reason is that the work is generated so often that a work is not > finished before next work of same type comes. This is especially true > for transmit and receive. Then I get 0 back when queuing the work and > there is no real way to solve it from what I can see than to allocate > new work structures every time.
So if that is the case what bounds your memory usage - can a busy box end up with thousands of work queue slos used ? It sounds like your model is perhaps wrong - if there is a continual stream of work maybe you should simply have a kernel thread to handle it if it cannot be deferred - remember ldisc code is able to sleep in most paths.
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