Messages in this thread |  | | Date | Mon, 5 Feb 2007 21:40:08 +0100 (MET) | From | Jan Engelhardt <> | Subject | Re: [PATCH[RFC] kill sysrq-u (emergency remount r/o) |
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On Feb 5 2007 18:32, Christoph Hellwig wrote: > >in two recent discussions (file_list_lock scalability and remount r/o >on suspend) I stumbled over this emergency remount feature. It's not >actually useful because it tries a potentially dangerous remount >despite writers still beeing in progress, which we can't get rid.
The current way is to remount things, and return -EROFS to any process that attempts to write(). Unless we want to kill processes to get rid of them [most likely we possibly won't], I am fine with how things are atm. So, what's the "dangerous" part, actually?
>Any ideas and comments?
sysrq+u is helpful. It is like \( sysrq+s && make sure no further writes go to disk \).
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