Messages in this thread | | | Date | Thu, 4 Mar 2010 14:53:37 +0100 | From | Pavel Machek <> | Subject | Re: [linux-pm] Is it supposed to be ok to call del_gendisk while userspace is frozen? |
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Hi!
> > journalling assumptions broken: commit block is there, but previous > > blocks are not intact. Data loss. > > > > ...and that was the first I could think about. Lets not do > > this. Barriers were invented for a reason. > > Very well. Then we still need a solution to the original problem: > Devices sometimes need to be unregistered during resume, but > del_gendisk() blocks on the writeback thread, which is frozen until > after the resume finishes. How do you suggest this be fixed?
Avoid unregistering device during resume. Instead, return errors until resume is done and you can call del_gendisk? Pavel
-- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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