diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2008-08-25 17:07:14 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-08-25 17:45:48 -0700 |
| commit | f73be6dedf4fa058ce80846dae604b08fa805ca1 (patch) | |
| tree | eb38c111bedf6b356db3af20ab124dff846643cb /arch/x86/kernel/cpuid.c | |
| parent | 2a61812af2e564cba2c8170cf96e1c823210f619 (diff) | |
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>
Diffstat (limited to 'arch/x86/kernel/cpuid.c')
0 files changed, 0 insertions, 0 deletions