linux-kernel - [PATCH 2/3] sys_futex64-allows-64bit-futexes-workaround for uml

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Date:	Sat, 31 Mar 2007 01:08:09 +0200
From:	Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Pierre Peiffer <pierre.peiffer@...l.net>,
	Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
Subject: [PATCH 2/3] sys_futex64-allows-64bit-futexes-workaround for uml

Copy sys_futex64-allows-64bit-futexes-workaround.patch to UML (to unbreak the
UML build). Note however that in include/asm-generic/futex.h we have:

static inline int
futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
{
	return -ENOSYS;
}

Which is a better solution. Pierre Peiffer, please consider that.

Cc: Pierre Peiffer <pierre.peiffer@...l.net>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
---

 include/asm-um/futex.h |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/include/asm-um/futex.h b/include/asm-um/futex.h
index 6a332a9..e875d3e 100644
--- a/include/asm-um/futex.h
+++ b/include/asm-um/futex.h
@@ -3,4 +3,17 @@
 
 #include <asm-generic/futex.h>
 
+static inline u64
+futex_atomic_cmpxchg_inatomic64(u64 __user *uaddr, u64 oldval, u64 newval)
+{
+	return 0;
+}
+
+static inline int
+futex_atomic_op_inuser64 (int encoded_op, u64 __user *uaddr)
+{
+	return 0;
+}
+
+
 #endif



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