On Sat, Apr 21, 2001 at 04:03:27PM +0200, Andrea Arcangeli wrote:
> On Fri, Apr 20, 2001 at 04:45:32PM -0700, Linus Torvalds wrote:
> > I would suggest the following:
> >
> > - the generic semaphores should use the lock that already exists in the
> > wait-queue as the semaphore spinlock.
>
> Ok, that is what my generic code does.
Erm, spin_lock()? What if up_read or up_write gets called from interrupt
context (is this allowed)?
If these are now allowed, then maybe we should either consider getting
the Stanford checker to check for this, or else we ought to do a debugging
if (in_interupt()) BUG(); thing.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
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This archive was generated by hypermail 2b29 : Mon Apr 23 2001 - 21:00:39 EST