From: Jun Sun <jsun@mvista.com>
To: ralf@oss.sgi.com, linux-mips@oss.sgi.com
Subject: [PATCH] disable interrupt for non-LLSC atomic set
Date: Thu, 10 Jan 2002 17:53:14 -0800 [thread overview]
Message-ID: <3C3E458A.B2AEC3CA@mvista.com> (raw)
The current MIPS_ATOMIC set code for no-LLSC case does a load and store with
interrupt open. This is potentially dangerous as an interrupt could happen
in-between and cause the value changed inside the interrupt handler.
Therefore the load/store is not atomic anymore.
Does the following patch look good to fix that?
http://linux.junsun.net/patches/oss.sgi.com/submitted/020110.disable-intr-for-nollsc-atomic-set.patch
Jun
next reply other threads:[~2002-01-11 2:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-11 1:53 Jun Sun [this message]
2002-01-11 10:54 ` [PATCH] disable interrupt for non-LLSC atomic set Maciej W. Rozycki
2002-01-11 17:23 ` Jun Sun
2002-01-11 17:40 ` Maciej W. Rozycki
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