Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

From
Ilpo Järvinen <hidden>
Date
2007-08-16 14:48:43
Also in
linux-arch, lkml
Reply to
Herbert Xu, 2007-08-16
On Thu, 16 Aug 2007, Herbert Xu wrote:
We've been through that already.  If it's a busy-wait it
should use cpu_relax. 
I looked around a bit by using some command lines and ended up wondering 
if these are equal to busy-wait case (and should be fixed) or not:

./drivers/telephony/ixj.c
6674:   while (atomic_read(&j->DSPWrite) > 0)
6675-           atomic_dec(&j->DSPWrite);

...besides that, there are couple of more similar cases in the same file 
(with braces)...


-- 
 i.
Thread (305 messages) 305 messages, 27 authors, last reply 2007-09-11
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