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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
commit 8b4021fa43
5 changed files with 81 additions and 0 deletions
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include/linux/dlm_device.h
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@ -92,6 +92,7 @@ struct dlm_lock_result {
#define DLM_USER_CREATE_LOCKSPACE 4
#define DLM_USER_REMOVE_LOCKSPACE 5
#define DLM_USER_PURGE 6
#define DLM_USER_DEADLOCK 7
/* Arbitrary length restriction */
#define MAX_LS_NAME_LEN 64