x86: no robust/pi futex for real i386 CPUs
authorThomas Gleixner <tglx@linutronix.de>
Sat, 16 Feb 2008 13:05:01 +0000 (14:05 +0100)
committerIngo Molnar <mingo@elte.hu>
Tue, 26 Feb 2008 11:56:06 +0000 (12:56 +0100)
commitf18edc95a37a901ffcbe91f5e05105f916a04fae
tree66bb079a44a7bf997207cce8eb6b3c840082c45d
parent12c247a6719987aad65f83158d2bb3e73c75c1f5
x86: no robust/pi futex for real i386 CPUs

Real i386 CPUs do not have cmpxchg instructions. Catch it before
crashing on an invalid opcode.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/asm-x86/futex.h