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Open Source and information security mailing list archives
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Date: Tue, 6 Feb 2007 12:32:31 -0200 From: Henrique de Moraes Holschuh <hmh@....eng.br> To: Nigel Cunningham <nigel@...el.suspend2.net> Cc: Andrew Morton <akpm@...ux-foundation.org>, akuster@...sta.com, linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>, "Rafael J. Wysocki" <rjw@...k.pl> Subject: Re: [patch 1/1] PM: Adds remount fs ro at suspend On Tue, 06 Feb 2007, Nigel Cunningham wrote: > 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. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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