From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Thu, 8 Jun 2006 08:36:20 +0000 (-0700)
Subject: [PATCH] s390: fix in-user atomic futex operation.
X-Git-Tag: v2.6.17~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bafe00cc9297ca77b66e5c83e5e65e17c0c997c8;p=pandora-kernel.git

[PATCH] s390: fix in-user atomic futex operation.

From: Martin Schwidefsky <schwidefsky@de.ibm.com>

__futex_atomic_op needs to do an atomic operation in the user address space,
not the kernel address space.  Add the missing sacf 256/sacf 0 to switch to
the secondary mode before doing the compare-and-swap.  In addition add
another fixup for catch specification exceptions if the compare-and-swap
address is not aligned.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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