From: Ingo Molnar <mingo@elte.hu>
To: linux-kernel@vger.kernel.org
Cc: Ulrich Drepper <drepper@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Arjan van de Ven <arjan@infradead.org>,
David Singleton <dsingleton@mvista.com>,
Andrew Morton <akpm@osdl.org>
Subject: [patch 3/5] lightweight robust futexes: arch defaults
Date: Wed, 15 Feb 2006 16:17:39 +0100 [thread overview]
Message-ID: <20060215151739.GD31569@elte.hu> (raw)
add placeholder futex_atomic_cmpxchg_inuser() implementations to every
architecture that supports futexes. It returns -ENOSYS.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Acked-by: Ulrich Drepper <drepper@redhat.com>
----
include/asm-frv/futex.h | 6 ++++++
include/asm-generic/futex.h | 6 ++++++
include/asm-mips/futex.h | 6 ++++++
include/asm-powerpc/futex.h | 6 ++++++
4 files changed, 24 insertions(+)
Index: linux-robust-list.q/include/asm-frv/futex.h
===================================================================
--- linux-robust-list.q.orig/include/asm-frv/futex.h
+++ linux-robust-list.q/include/asm-frv/futex.h
@@ -9,5 +9,11 @@
extern int futex_atomic_op_inuser(int encoded_op, int __user *uaddr);
+static inline int
+futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval)
+{
+ return -ENOSYS;
+}
+
#endif
#endif
Index: linux-robust-list.q/include/asm-generic/futex.h
===================================================================
--- linux-robust-list.q.orig/include/asm-generic/futex.h
+++ linux-robust-list.q/include/asm-generic/futex.h
@@ -49,5 +49,11 @@ futex_atomic_op_inuser (int encoded_op,
return ret;
}
+static inline int
+futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval)
+{
+ return -ENOSYS;
+}
+
#endif
#endif
Index: linux-robust-list.q/include/asm-mips/futex.h
===================================================================
--- linux-robust-list.q.orig/include/asm-mips/futex.h
+++ linux-robust-list.q/include/asm-mips/futex.h
@@ -99,5 +99,11 @@ futex_atomic_op_inuser (int encoded_op,
return ret;
}
+static inline int
+futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval)
+{
+ return -ENOSYS;
+}
+
#endif
#endif
Index: linux-robust-list.q/include/asm-powerpc/futex.h
===================================================================
--- linux-robust-list.q.orig/include/asm-powerpc/futex.h
+++ linux-robust-list.q/include/asm-powerpc/futex.h
@@ -81,5 +81,11 @@ static inline int futex_atomic_op_inuser
return ret;
}
+static inline int
+futex_atomic_cmpxchg_inuser(int __user *uaddr, int oldval, int newval)
+{
+ return -ENOSYS;
+}
+
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_FUTEX_H */
reply other threads:[~2006-02-15 15:19 UTC|newest]
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