diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 9f89d3821d16..e98d9650764b 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -59,6 +59,22 @@ static __always_inline bool test_cpu_flag(int flag) return S390_lowcore.cpu_flags & (1UL << flag); } +static __always_inline bool test_and_set_cpu_flag(int flag) +{ + if (test_cpu_flag(flag)) + return true; + set_cpu_flag(flag); + return false; +} + +static __always_inline bool test_and_clear_cpu_flag(int flag) +{ + if (!test_cpu_flag(flag)) + return false; + clear_cpu_flag(flag); + return true; +} + /* * Test CIF flag of another CPU. The caller needs to ensure that * CPU hotplug can not happen, e.g. by disabling preemption. |