Eric Lee / smarc-fsl-linux-kernel

12 Oct, 2011

1 commit

  • 0030807c6   xfs: revert to using a kthread for AIL pushing ... Browse Code »
    1

    Currently we have a few issues with the way the workqueue code is used to
    implement AIL pushing:

    - it accidentally uses the same workqueue as the syncer action, and thus
    can be prevented from running if there are enough sync actions active
    in the system.
    - it doesn't use the HIGHPRI flag to queue at the head of the queue of
    work items

    At this point I'm not confident enough in getting all the workqueue flags and
    tweaks right to provide a perfectly reliable execution context for AIL
    pushing, which is the most important piece in XFS to make forward progress
    when the log fills.

    Revert back to use a kthread per filesystem which fixes all the above issues
    at the cost of having a task struct and stack around for each mounted
    filesystem. In addition this also gives us much better ways to diagnose
    any issues involving hung AIL pushing and removes a small amount of code.

    Signed-off-by: Christoph Hellwig
    Reported-by: Stefan Priebe
    Tested-by: Stefan Priebe
    Reviewed-by: Dave Chinner
    Signed-off-by: Alex Elder

    Christoph Hellwig
     

13 Aug, 2011

1 commit

  • c59d87c46   xfs: remove subdirectories ... Browse Code »

    Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
    annoying subdirectories in the XFS source code. Besides the large
    amount of file rename the only changes are to the Makefile, a few
    files including headers with the subdirectory prefix, and the binary
    sysctl compat code that includes a header under fs/xfs/ from
    kernel/.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Alex Elder

    Christoph Hellwig