Re: I was wrong !: when does a process sleep in reading a file from disk?

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On 10/30/05, Hui Cheng <hcheng@xxxxxxxxxxx> wrote:
>
> I was wrong on this topic, the reading process sleeps on the
> do_generic_mapping_read(), when it needs actually read from disk. It is
> mapping->a_ops->readpage(filp, page). This function submits a request and
> return. Then, if the page is not up to date, the process will turn to
> sleep until the bio->bi_end_io is called to unlock the page and wakes up
> all processors waiting for this page. So, I was totally wrong on my guess.
> Fawad's thinking is more close to the facts.
>

Ya, I missed this thing which you got now :) And Thanks for telling me too !

--
Fawad Lateef


P.S.

__Please don't do Top Posting. See http://www.caliburn.nl/topposting.html

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