Eric Lee / smarc-fsl-linux-kernel

09 Jul, 2007

3 commits

  • 44f487a55   [DLM] variable allocation ... Browse Code »

    Add a new flag, DLM_LSFL_FS, to be used when a file system creates a lockspace.
    This flag causes the dlm to use GFP_NOFS for allocations instead of GFP_KERNEL.
    (This updated version of the patch uses gfp_t for ls_allocation.)

    Signed-Off-By: Patrick Caulfield
    Signed-Off-By: David Teigland
    Signed-off-by: Steven Whitehouse

    Patrick Caulfield
     
  • c85d65e91   [DLM] cancel in conversion deadlock [4/6] ... Browse Code »

    When conversion deadlock is detected, cancel the conversion and return
    EDEADLK to the application. This is a new default behavior where before
    the dlm would allow the deadlock to exist indefinately.

    The DLM_LKF_NODLCKWT flag can now be used in a conversion to prevent the
    dlm from performing conversion deadlock detection/cancelation on it.
    The DLM_LKF_CONVDEADLK flag can continue to be used as before to tell the
    dlm to demote the granted mode of the lock being converted if it gets into
    a conversion deadlock.

    Signed-off-by: David Teigland
    Signed-off-by: Steven Whitehouse

    David Teigland
     
  • 3ae1acf93   [DLM] add lock timeouts and warnings [2/6] ... Browse Code »

    New features: lock timeouts and time warnings. If the DLM_LKF_TIMEOUT
    flag is set, then the request/conversion will be canceled after waiting
    the specified number of centiseconds (specified per lock). This feature
    is only available for locks requested through libdlm (can be enabled for
    kernel dlm users if there's a use for it.)

    If the new DLM_LSFL_TIMEWARN flag is set when creating the lockspace, then
    a warning message will be sent to userspace (using genetlink) after a
    request/conversion has been waiting for a given number of centiseconds
    (configurable per node). The time warnings will be used in the future
    to do deadlock detection in userspace.

    Signed-off-by: David Teigland
    Signed-off-by: Steven Whitehouse

    David Teigland
     

23 Feb, 2006

1 commit

18 Jan, 2006

1 commit

  • e7fd41792   [DLM] The core of the DLM for GFS2/CLVM ... Browse Code »

    This is the core of the distributed lock manager which is required
    to use GFS2 as a cluster filesystem. It is also used by CLVM and
    can be used as a standalone lock manager independantly of either
    of these two projects.

    It implements VAX-style locking modes.

    Signed-off-by: David Teigland
    Signed-off-by: Steve Whitehouse

    David Teigland