2011/11/02 8:13, Jan Kara wrote:
The problem is that we cannot unmount the corrupted filesystem due to
un-killable dd process. We must bring down the system to resume the service
with no dirty pages. I think it is important for the service continuity
to be able to kill the thread handling in balance_dirty_pages().
Sure. Then allowing a process to be killed while waiting in
balance_dirty_pages() would solve your problem. That can be done relatively
easily. I can write the patch, just now the code is under rewrite from
IO-less dirty throttling patches so I'll wait for a while for it to settle
down.
Thanks for working this on.
Regards,
Kazuya Mio
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