Subject: Re: More braindead code
To: Lennart Augustsson <>
From: Jason Thorpe <>
List: tech-kern
Date: 01/14/2000 17:04:05
On Fri, 14 Jan 2000 13:20:18 +0100 
 Lennart Augustsson <> wrote:

 > Again, I can't believe my eyes!  There is code in there that may loop for up to 500ms
 > using delay().  I.e. the kernel will busy wait for 0.5s.  And looking a little further the I
 > see that it can loop for 0.1s during reset.  I've not checked, but the only reason for
 > using delay() rather than tsleep() is that these routines are called from an interrupt
 > context, which in my opinion makes using delay() even more unforgivable since it may
 > block important interrupts.
 > Clearly, the MII code needs a little restructuring to get rid of these atrocities.

Look a little more carefully... when it's called from ANY context other than
via ioctl, it's all asynchronous; no busy-wait.

I'm doing some work on the MII code currently, to make it even MORE asynch,
but between moving to a new house and vacation, I haven't gotten it finished

        -- Jason R. Thorpe <>