diff options
Diffstat (limited to 'arch/x86/kernel/smpboot.c')
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index d6cf1e23c2a3..2901f5cfd825 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1188,6 +1188,12 @@ void cpu_disable_common(void) remove_siblinginfo(cpu); + /* + * Stop allowing kernel-mode FPU. This is needed so that if the CPU is + * brought online again, the initial state is not allowed: + */ + this_cpu_write(kernel_fpu_allowed, false); + /* It's now safe to remove this processor from the online map */ lock_vector_lock(); remove_cpu_from_maps(cpu); |