Hi
I am trying to understand the following code in isolate_migratepages
function. I have a question regarding this.
---
while (unlikely(too_many_isolated(zone))) {
congestion_wait(BLK_RW_ASYNC, HZ/10);
if (fatal_signal_pending(current))
return 0;
}
---
I have seen that in some cases this while loop never exits
because too_many_isolated keeps returning true for ever.
And hence the process hangs. Is this intended behaviour?
What is it that is supposed to change the "too_many_isolated" situation?
In other words, what is it that is supposed to increase the "inactive"
or decrease the "isolated" so that isolated > inactive becomes false?
Best regards
Iram
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxxx For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>