GJournal progress…

July 12, 2006 by · 12 Comments 

Ok, the work on fast fsck is finished. I integrated it with fsck_ffs(8).

I also changed the way how gjournaled file system is created. Now you need to use ‘-j’ option for newfs(8) to create gjournaled file system. You can also use ‘tunefs -j enable’ on an existing file system. You don’t need to provide ‘gjournal’ mount option any more, but when file system is gjournaled it will be visible in mount options.

I removed a hack of how gjournal was looking for gjournaled file systems. It is much nicer now.

Currently fsck will scan all cylinder groups, which is fast, but it could be a lot faster when I could add cs_nunrefs field to csum structure – file system keeps statistics about all cylinder groups after the super-block and having an information about which cylinder groups have unreferenced inodes would save us a lot of seeking. Unfortunately it will change UFS on-disk layout which is not acceptable at this point.

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12 Responses to “GJournal progress…”
  1. Keltia says:

    Hello, does the tunefs thingy mean that I can “convert” an existing FS to gjournal without newfs? If yes, a big thanks to you!

  2. fatality9xnw says:

    Geben mir bitte eine poker Brotchenxnw

  3. Nikolas says:

    Hi, is the gjournal project still alive? I couldn find any patches applying cleanly against recent BSD sources (6.2).
    The latest one :
    http://lists.freebsd.org/pipermail/freebsd-stable/2006-November/030803.html

    applys cleanly but it doesnt seem fully functional to me.
    Cheers,
    Nikolas

  4. nikolas says:

    btw: check your commenting system. It seems to be broken somehow ;)

  5. zxevil162 says:

    hbOHey cool blog, man!

  6. zxevil162 says:

    pVOaEI cool blog, man!

  7. FloodKicker says:

    Do you really think this is new thing? Your blog is really good to me, I read it to get useful info, but sometimes I’m bored to tears.

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