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[DLM] canceling deadlocked lock

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Add a function that can be used through libdlm by a system daemon to cancel
another process's deadlocked lock.  A completion ast with EDEADLK is returned
to the process waiting for the lock.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland
2007-05-29 08:46:00 -05:00
committed by Steven Whitehouse
parent 84d8cd69a8
commit 8b4021fa43
5 changed files with 81 additions and 0 deletions
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fs/dlm/dlm_internal.h
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@@ -216,6 +216,7 @@ struct dlm_args {
#define DLM_IFL_ENDOFLIFE 0x00200000
#define DLM_IFL_WATCH_TIMEWARN 0x00400000
#define DLM_IFL_TIMEOUT_CANCEL 0x00800000
#define DLM_IFL_DEADLOCK_CANCEL 0x01000000
#define DLM_IFL_USER 0x00000001
#define DLM_IFL_ORPHAN 0x00000002