From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: linux-ia64@vger.kernel.org
Subject: Bug in ia64 specific down() function??
Date: Thu, 12 Jan 2006 01:38:14 +0000 [thread overview]
Message-ID: <200601120138.k0C1cEg03582@unix-os.sc.intel.com> (raw)
The memory order semantics for include/asm-ia64/semaphore.h:down()
doesn't look right. It is using atomic_dec_return, which eventually
translate into ia64_fetch_and_add() that uses release semantics.
Shouldn't it use acquire semantics?
- Ken
next reply other threads:[~2006-01-12 1:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-12 1:38 Chen, Kenneth W [this message]
2006-01-13 16:25 ` Bug in ia64 specific down() function?? Zoltan Menyhart
2006-01-13 22:26 ` Chen, Kenneth W
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