Messages in this thread | | | From | Benny Amorsen <> | Subject | Re: ext4 features | Date | 04 Jul 2006 11:14:27 +0200 |
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>>>>> "DC" == Diego Calleja <diegocg@gmail.com> writes:
DC> El Mon, 03 Jul 2006 15:46:55 -0600, "Jeff V. Merkey" DC> <jmerkey@wolfmountaingroup.com> escribió:
>> Add a salvagable file system to ext4, i.e. when a file is deleted, >> you just rename it and move it to a directory called DELETED.SAV >> and recycle the files as people allocate new ones. Easy to do >> (internal "mv" of
DC> Easily doable in userspace, why bother with kernel programming
In userspace you can't automatically delete the files when the space becomes needed. The LD_PRELOAD/glibc methods also have the disadvantage of having to figure out where a file goes when it's deleted, depending on which device it happens to reside on. Demanding read access to /proc/mounts just to do rm could cause problems.
Userspace has had 10 years to invent a good solution. If it was so easy, it would probably have been done.
/Benny
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