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由 Roman Zippel 提交于
We require that all archs implement atomic_cmpxchg(), for the generic version of atomic_add_unless(). Signed-off-by: NRoman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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