Patch(?): linux-2.4.9/include/linux/spinlock.h sometimes needs to redefine atomic_dec_and_lock

From: Adam J. Richter (adam@yggdrasil.com)
Date: Thu Aug 16 2001 - 20:56:18 EST

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The following patch to linux-2.4.9/include/linux/spinlock.h
defines atomic_dec_and_lock to atomic_dec_and_test on SMP
architectures that do not have an "atomic_dec_and_lock", such as
i386. I am not sure if this is the correct patch because, as I
mentioned in my previous email to this list a few minutes ago,
I'm not completely clear on the semantics of these two functions
and I think the problems with this routine may be the result of
an incompletely applied patch. However, I am posting this patch
in case it is correct or otherwise helpful. This patch does eliminate
the problem of atomic_dec_and_lock not being defined in sunrpc.o.

-- Adam J. Richter __ ______________ 4880 Stevens Creek Blvd, Suite 104 adam@yggdrasil.com \ / San Jose, California 95129-1034 +1 408 261-6630 | g g d r a s i l United States of America fax +1 408 261-6631 "Free Software For The Rest Of Us."

text/plain attachment: spinlock.diff

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