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authorDavid Teigland <teigland@redhat.com>2011-10-20 13:26:28 -0500
committerDavid Teigland <teigland@redhat.com>2012-01-04 08:55:57 -0600
commit757a42719635495779462514458bbfbf12a37dac (patch)
treebe6ea155fc54c397cb57eb193b81824b37989e56 /fs/dlm/lockspace.c
parentf95a34c66554235b70a681fcd9feebc195f7ec0e (diff)
downloadlinux-757a42719635495779462514458bbfbf12a37dac.tar.bz2
dlm: add node slots and generation
Slot numbers are assigned to nodes when they join the lockspace. The slot number chosen is the minimum unused value starting at 1. Once a node is assigned a slot, that slot number will not change while the node remains a lockspace member. If the node leaves and rejoins it can be assigned a new slot number. A new generation number is also added to a lockspace. It is set and incremented during each recovery along with the slot collection/assignment. The slot numbers will be passed to gfs2 which will use them as journal id's. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/lockspace.c')
-rw-r--r--fs/dlm/lockspace.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 1d16a23b0a06..1441f04bfabe 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -525,6 +525,11 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
if (!ls->ls_recover_buf)
goto out_dirfree;
+ ls->ls_slot = 0;
+ ls->ls_num_slots = 0;
+ ls->ls_slots_size = 0;
+ ls->ls_slots = NULL;
+
INIT_LIST_HEAD(&ls->ls_recover_list);
spin_lock_init(&ls->ls_recover_list_lock);
ls->ls_recover_list_count = 0;