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The GNU linker tries to put __per_cpu_load into the percpu area, resulting in a lack of its relocation. Force this symbol to be relocated. Seen starting with GNU ld 2.23 and later. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Michael Davidson <md@google.com> Cc: Cong Ding <dinggnu@gmail.com> Link: http://lkml.kernel.org/r/20131016064314.GA2739@www.outflux.net Signed-off-by: Ingo Molnar <mingo@kernel.org>