Messages in this thread | | | Date | Sun, 20 Oct 2013 13:46:38 +0200 | Subject | Re: [RFC] Rollback FS | From | Richard Weinberger <> |
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On Sun, Oct 20, 2013 at 1:37 PM, jiaweiwei <jiaweiwei.xiyou@gmail.com> wrote: > On Sun, Oct 20, 2013 at 6:43 PM, Vyacheslav Dubeyko <slava@dubeyko.com> wrote: >> Anyway, you need to use Copy-On-Write (COW) approach for such file system. >> But there are file systems that implements snapshot approach yet: NILFS2, ext3cow, >> Next3, and so on. >> > > Any file system should rollback but not specific ones. Therefore, a > VFS like mechanism should be designed and implemented.
-ENOPATCH
>> Do you really want to implement something likewise snapshot feature in a file system >> from the scratch? >> > > Maybe, I would give detail design, thanks.
Linux's next generation filesystem, btrfs, has already support for file and volume level snapshots.
-- Thanks, //richard
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