On Sat, Apr 09, 2011 at 07:57:00AM +0200, Helmut Hullen wrote: > Hallo, linux-btrfs, > > I can't switch a running "btrfs filesystem balance ..." via > > ctrl z > bg > > into the background, with other jobs this way works. > > The stopping command "ctrl z" doesn't work. > > (may be on other keyboards it's "ctrl y") > > What goes wrong?
A balance is a single long-lived ioctl call, so the userspace process is living in D state (uninterruptible sleep) until the kernel finishes. I've got a patch that forks the process, and runs the ioctl in the background, returning immediately. I should be able to get it to the list this weekend as part of the userspace side of the balance management patches. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- There are three things you should never see being made: laws, --- standards, and sausages.
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