H. Peter Anvin f73be6dedf smp: have smp_call_function_single() detect invalid CPUs ...

Have smp_call_function_single() return invalid CPU indicies and return
-ENXIO.  This function is already executed inside a
get_cpu()..put_cpu() which locks out CPU removal, so rather than
having the higher layers doing another layer of locking to guard
against unplugged CPUs do the test here.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

2008-08-25 17:45:48 -07:00

11 KiB

Raw Blame History

View Raw