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From: Luben Tuikov <>
To: Jens Axboe <>
Cc: "" <>
Subject: Re: struct page question
Date: Wed, 25 Sep 2002 16:56:51 -0400	[thread overview]
Message-ID: <> (raw)

Jens Axboe wrote:
> > Apparently I cannot just set b_data and b_size, b_page
> > also has to be set and it also seems that it will
> > not work if page_address(b_page) != b_data...
> bh->b_page = virt_to_page(va);
> bh->b_data = va;

Thanks Jens again.

My doubts are that va might not point to page->virtual,
but may point ``in the middle'' of the page, in which case
md will cough up since it does the page_address(b_page) != b_data
then BUG()...

I.e. I cannot guarantee about where va points (just that it is NOT


  reply	other threads:[~2002-09-25 20:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-24 21:10 struct page question Luben Tuikov
2002-09-25  7:34 ` Jens Axboe
2002-09-25 20:56   ` Luben Tuikov [this message]
2002-09-26  5:33     ` Jens Axboe

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