On Sun, Oct 20, 2013 at 1:37 PM, jiaweiwei <jiaweiwei.xi...@gmail.com> wrote: > On Sun, Oct 20, 2013 at 6:43 PM, Vyacheslav Dubeyko <sl...@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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
