Re: [PATCH] lock assertion macros for 2.5.30

From: Rik van Riel (riel@conectiva.com.br)
Date: Thu Aug 08 2002 - 12:31:40 EST


On Thu, 8 Aug 2002, Jesse Barnes wrote:
> On Thu, Aug 08, 2002 at 08:00:45AM +0200, Jens Axboe wrote:

> > For MUST_NOT_HOLD to work, you need to take into account which processor
> > took the lock etc.

[snip]

> Agreed. I'll post another patch that doesn't mess with the scsi
> stuff. Maybe later I can put together a useful
> 'lock-not-held-on-this-cpu' macro.

You don't need to put this in a macro. This test is valid
for ALL spinlocks in the kernel and can be done from inside
the spin_lock() macro itself, when spinlock debugging is on.

regards,

Rik

-- 
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