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[DLM] fix user unlocking

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When a user process exits, we clear all the locks it holds.  There is a
problem, though, with locks that the process had begun unlocking before it
exited.  We couldn't find the lkb's that were in the process of being
unlocked remotely, to flag that they are DEAD.  To solve this, we move
lkb's being unlocked onto a new list in the per-process structure that
tracks what locks the process is holding.  We can then go through this
list to flag the necessary lkb's when clearing locks for a process when it
exits.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland
2007-01-15 10:34:52 -06:00
committed by Steven Whitehouse
parent 1d6e8131cf
commit a1bc86e6bd
3 changed files with 28 additions and 12 deletions
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fs/dlm/dlm_internal.h
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@@ -526,6 +526,7 @@ struct dlm_user_proc {
spinlock_t asts_spin;
struct list_head locks;
spinlock_t locks_spin;
struct list_head unlocking;
wait_queue_head_t wait;
};