From: Richard Henderson <rth@twiddle.net>
To: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] powerpc: Fix bug in __futex_atomic_op
Date: Tue, 14 Apr 2009 09:17:19 -0700 [thread overview]
Message-ID: <49E4B70F.1030304@twiddle.net> (raw)
In-Reply-To: <18915.54309.632699.346771@cargo.ozlabs.ibm.com>
Paul Mackerras wrote:
> Can anyone see any reason why the FUTEX_OP_SET case can't just do a
> __put_user?
Because you need to return the old value. Despite the name,
it's an exchange operation not a set.
r~
next prev parent reply other threads:[~2009-04-14 16:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-14 0:09 [PATCH] powerpc: Fix bug in __futex_atomic_op Paul Mackerras
2009-04-14 16:17 ` Richard Henderson [this message]
2009-04-15 7:26 ` Norbert van Bolhuis
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