Eric Lee / linux-smarc-t335x-v3.2

18 Apr, 2008

3 commits

  • 6953b4c00   ocfs2: Move o2hb functionality into the stack glue. ... Browse Code »

    The last bit of classic stack used directly in ocfs2 code is o2hb.
    Specifically, the check for heartbeat during mount and the call to
    ocfs2_hb_ctl during unmount.

    We create an extra API, ocfs2_cluster_hangup(), to encapsulate the call
    to ocfs2_hb_ctl. Other stacks will just leave hangup() empty.

    The check for heartbeat is moved into ocfs2_cluster_connect(). It will
    be matched by a similar check for other stacks.

    With this change, only stackglue.c includes cluster/ headers.

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     
  • 4670c46de   ocfs2: Introduce the new ocfs2_cluster_connect/disconnect() API. ... Browse Code »

    This step introduces a cluster stack agnostic API for initializing and
    exiting. fs/ocfs2/dlmglue.c no longer uses o2cb/o2dlm knowledge to
    connect to the stack. It is all handled in stackglue.c.

    heartbeat.c no longer needs to know how it gets called.
    ocfs2_do_node_down() is now a clean recovery trigger.

    The big gotcha is the ordering of initializations and de-initializations done
    underneath ocfs2_cluster_connect(). ocfs2_dlm_init() used to do all
    o2dlm initialization in one block. Thus, the o2dlm functionality of
    ocfs2_cluster_connect() is very straightforward. ocfs2_dlm_shutdown(),
    however, did a few things between de-registration of the eviction
    callback and actually shutting down the domain. Now de-registration and
    shutdown of the domain are wrapped within the single
    ocfs2_cluster_disconnect() call. I've checked the code paths to make
    sure we can safely tear down things in ocfs2_dlm_shutdown() before
    calling ocfs2_cluster_disconnect(). The filesystem has already set
    itself to ignore the callback.

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     
  • 553abd046   ocfs2: Change the recovery map to an array of node numbers. ... Browse Code »

    The old recovery map was a bitmap of node numbers. This was sufficient
    for the maximum node number of 254. Going forward, we want node numbers
    to be UINT32. Thus, we need a new recovery map.

    Note that we can't keep track of slots here. We must write down the
    node number to recovery *before* we get the locks needed to convert a
    node number into a slot number.

    The recovery map is now an array of unsigned ints, max_slots in size.
    It moves to journal.c with the rest of recovery.

    Because it needs to be initialized, we move all of recovery initialization
    into a new function, ocfs2_recovery_init(). This actually cleans up
    ocfs2_initialize_super() a little as well. Following on, recovery cleaup
    becomes part of ocfs2_recovery_exit().

    A number of node map functions are rendered obsolete and are removed.

    Finally, waiting on recovery is wrapped in a function rather than naked
    checks on the recovery_event. This is a cleanup from Mark.

    Signed-off-by: Joel Becker
    Signed-off-by: Mark Fasheh

    Joel Becker
     

04 Mar, 2008

1 commit

  • 006000566   [2.6 patch] fs/ocfs2/: possible cleanups ... Browse Code »

    This patch contains the following cleanups that are now possible:
    - make the following needlessly global functions static:
    - dlmglue.c:ocfs2_process_blocked_lock()
    - heartbeat.c:ocfs2_node_map_init()
    - #if 0 the following unused global function plus support functions:
    - heartbeat.c:ocfs2_node_map_is_only()

    Signed-off-by: Adrian Bunk
    Signed-off-by: Mark Fasheh

    Adrian Bunk
     

26 Jan, 2008

1 commit

04 Jan, 2006

1 commit