Messages in this thread |  | | Date | Tue, 18 Sep 2001 22:14:42 -0400 | From | Mark Swanson <> | Subject | Request: removal of fs/fs.h/super_block.u to enable partition locking |
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Why?
So I can write and distribute a GPL'd 'inuse' filesystem module that essentially registers a partition as in-use.
I am writing an application that uses raw I/O and I need some way of locking a partition. The only way I know of (sortof) doing this is by registering a filesystem for the partition so system utilities won't overwrite the partition because they will see it is busy by examining /proc/partitions.
lockf() on /dev/hda1 doesn't stop root from mounting the partition as a swap partition or accidentally formatting it even though the root partition was mounted with 'mand' to enable mandatory locking and a 'chmod 2660 /dev/hda1' was done to enable mandatory locking on the file.
I'm trying to look out for tired sys-admins who might destroy my application's partition not knowing what a particular empty-looking partition is used for.
Thoughts?
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