diff options
| author | Anton Blanchard <anton@samba.org> | 2003-02-13 13:28:18 +1100 |
|---|---|---|
| committer | Anton Blanchard <anton@samba.org> | 2003-02-13 13:28:18 +1100 |
| commit | 46ec4a5b48e7d125258450e4e6992330cc4cc830 (patch) | |
| tree | 9e45bda1c11fe9e828d88fc1d112de3b59a65992 /arch | |
| parent | 2c5c4f1f10de3a6a0b31bcdb1c4ca00680fe7c37 (diff) | |
ppc64: Never call event-scan faster than once per second, required on some machines
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc64/kernel/rtasd.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/ppc64/kernel/rtasd.c b/arch/ppc64/kernel/rtasd.c index 106620bc27d1..3a1b6ab9f150 100644 --- a/arch/ppc64/kernel/rtasd.c +++ b/arch/ppc64/kernel/rtasd.c @@ -147,8 +147,8 @@ static int enable_surveillance(void) { int error; - error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, SURVEILLANCE_TOKEN, - 0, SURVEILLANCE_TIMEOUT); + error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, + SURVEILLANCE_TOKEN, 0, SURVEILLANCE_TIMEOUT); if (error) { printk(KERN_ERR "rtasd: could not enable surveillance\n"); @@ -243,11 +243,13 @@ repeat: } while(error == 0); - /* Check all cpus for pending events before sleeping*/ - if (!first_pass) { - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout((HZ*60/rtas_event_scan_rate) / 2); - } + /* + * Check all cpus for pending events quickly, sleeping for + * at least one second since some machines have problems + * if we call event-scan too quickly + */ + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(first_pass ? HZ : (HZ*60/rtas_event_scan_rate) / 2); } if (first_pass && surveillance_requested) { @@ -255,10 +257,9 @@ repeat: if (enable_surveillance()) goto error_vfree; DEBUG("surveillance enabled\n"); - } else { - first_pass = 0; } + first_pass = 0; goto repeat; error_vfree: |