Eric Lee / smarc-fsl-linux-kernel

09 Jul, 2007

1 commit

  • 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
     

01 May, 2007

1 commit

  • 6ed7257b4   [DLM] Consolidate transport protocols ... Browse Code »

    This patch consolidates the TCP & SCTP protocols for the DLM into a single file
    and makes it switchable at run-time (well, at least before the DLM actually
    starts up!)

    For RHEL5 this patch requires Neil Horman's patch that expands the in-kernel
    socket API but that has already been twice ACKed so it should be OK.

    The patch adds a new lowcomms.c file that replaces the existing lowcomms-sctp.c
    & lowcomms-tcp.c files.

    Signed-off-By: Patrick Caulfield
    Signed-off-by: Steven Whitehouse

    Patrick Caulfield
     

30 Nov, 2006

1 commit

  • fdda387f7   [DLM] Add support for tcp communications ... Browse Code »

    The following patch adds a TCP based communications layer
    to the DLM which is compile time selectable. The existing SCTP
    layer gives the advantage of allowing multihoming, whereas
    the TCP layer has been heavily tested in previous versions of
    the DLM and is known to be robust and therefore can be used as
    a baseline for performance testing.

    Signed-off-by: Patrick Caulfield
    Signed-off-by: Steven Whitehouse

    Patrick Caulfield
     

13 Jul, 2006

1 commit

  • 597d0cae0   [DLM] dlm: user locks ... Browse Code »

    This changes the way the dlm handles user locks. The core dlm is now
    aware of user locks so they can be dealt with more efficiently. There is
    no more dlm_device module which previously managed its own duplicate copy
    of every user lock.

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

    David Teigland
     

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