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| author | Heiko Carstens <hca@linux.ibm.com> | 2023-02-13 14:35:19 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-02-15 13:07:01 +0300 |
| commit | 6472a2dcc4274452bb46fb5a0d968a1c1ed772ee (patch) | |
| tree | 9af7314210b1e841eb15a485abe6e3320c49ab91 /arch/s390/include/asm/idle.h | |
| parent | f96f41aae2b5bd34d32f462c7b45c0f4fad2b59e (diff) | |
| download | linux-6472a2dcc4274452bb46fb5a0d968a1c1ed772ee.tar.xz | |
s390/irq,idle: simplify idle check
Use the per-cpu CIF_ENABLED_WAIT flag to decide if an interrupt
occurred while a cpu was idle, instead of checking two conditions
within the old psw.
Also move clearing of the CIF_ENABLED_WAIT bit to the early interrupt
handler, which in turn makes arch_vcpu_is_preempted() also a bit more
precise, since the flag is now cleared before interrupt handlers have
been called.
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/idle.h')
| -rw-r--r-- | arch/s390/include/asm/idle.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/s390/include/asm/idle.h b/arch/s390/include/asm/idle.h index af72a2b35758..09f763b9eb40 100644 --- a/arch/s390/include/asm/idle.h +++ b/arch/s390/include/asm/idle.h @@ -23,6 +23,5 @@ extern struct device_attribute dev_attr_idle_count; extern struct device_attribute dev_attr_idle_time_us; void psw_idle(struct s390_idle_data *data, unsigned long psw_mask); -void psw_idle_exit(void); #endif /* _S390_IDLE_H */ |