Messages in this thread | | | Date | Tue, 13 Feb 2007 13:12:13 +0100 | From | Pavel Machek <> | Subject | Re: [patch 1/1] PM: Adds remount fs ro at suspend |
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Hi!
> > Why do you think remounting filesystems is necessary? Are you getting > > problems with some particular filesystem? > > No. But anything in a removable device neets to be either remounted > read-only or unmounted if that is at all possible, because the user could > unplug it. It is of course, sync'd anyway, so if the remount/umount fails, > no corruption should happen... but the fs will be dirty, etc. > > It can get very ugly when you factor in docks and removable bays. It's not > just USB/firewire mass-storage devices and memory cards. And there is the > patological cases where the user suspends with the device in one port, and > resumes with the device in another port. > > I feel userspace *can* do all that needs to be done, but we are (currently) > very bad at it.
Fix it in userspace, then. fsck when you unplug disk while suspended should serve as a reminder to fix that userspace :-).
(And yes, you may need some kernel support to do it nicely; hopefully same kernel support that will solve users unplugging disks without umount.) Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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