Messages in this thread |  | | From | Daniel Phillips <> | Subject | Re: misc questions about kernel 2.4.x internals | Date | Mon, 20 Aug 2001 19:49:05 +0200 |
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On August 20, 2001 04:52 pm, Christian Widmer wrote: > 3) i had a look at the ll_rw_block and realised that it can block when there > are to many buffers locked. when i use generic_make_request can i be > shure that i wont block so that i can call it in a tasklet and don't need to > switch to a kernel thread? i think that also needs that clustering function > __make_request may not block. does it or does it not?
It blocks on the availability of a struct request, look at __get_request_wait. This is how we do IO throttling in 2.4.8/9.
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