Messages in this thread | | | Date | Sun, 20 Oct 2013 20:59:14 +0800 | Subject | Re: [RFC] Rollback FS | From | jiaweiwei <> |
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On Sun, Oct 20, 2013 at 8:35 PM, Theodore Ts'o <tytso@mit.edu> wrote: > On Sun, Oct 20, 2013 at 07:37:01PM +0800, jiaweiwei wrote: >> >> Any file system should rollback but not specific ones. Therefore, a >> VFS like mechanism should be designed and implemented. > > And what if the blocks or inodes used for the files that were deleted > have already been used and overwritten?
A good catch. Following ideas would be suitable.
1, Keep the blocks or inodes by a parameter we give. 2, Keep the blocks or inodes for several seconds.
> >> Maybe, I would give detail design, thanks. > > I encourage you to try to do that; you might find it to be an > educational exercise. >
Yeah, I would, thanks.
-- do kernel
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