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[POWERPC] windfarm: Fix windfarm thread freezer interaction 

When I fixed the windfarm freezer interaction first in commit
1ed2ddf380, an earlier patch than the one
I came up with after comments was committed. This has come back to haunt
us now because commit d5d8c5976d changed
the freezer to no long send signals. Fix it by removing the windfarm
thread's signal logic and restoring the original try_to_freeze().

We could simply revert 1ed2ddf380 now
but I feel that the assertion that no signal is delivered to the
windfarm thread needs not be there.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Johannes Berg 2007-11-07 21:18:02 +11:00 committed by Paul Mackerras
parent a792e75d9b
commit 67b60518b0
1 changed files with 3 additions and 7 deletions
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10
drivers/macintosh/windfarm_core.c
View File

@ -94,7 +94,9 @@ static int wf_thread_func(void *data)
DBG("wf: thread started\n"); DBG("wf: thread started\n");
set_freezable(); set_freezable();
while(!kthread_should_stop()) { while (!kthread_should_stop()) {
try_to_freeze();
if (time_after_eq(jiffies, next)) { if (time_after_eq(jiffies, next)) {
wf_notify(WF_EVENT_TICK, NULL); wf_notify(WF_EVENT_TICK, NULL);
if (wf_overtemp) { if (wf_overtemp) {
@ -116,12 +118,6 @@ static int wf_thread_func(void *data)
delay = next - jiffies; delay = next - jiffies;
if (delay <= HZ) if (delay <= HZ)
schedule_timeout_interruptible(delay); schedule_timeout_interruptible(delay);
/* there should be no non-suspend signal, but oh well */
if (signal_pending(current) && !try_to_freeze()) {
printk(KERN_WARNING "windfarm: thread got sigl !\n");
break;
}
} }
DBG("wf: thread stopped\n"); DBG("wf: thread stopped\n");