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ocfs2/dlm: Hold off sending lockres drop ref message while lockres is migrating 

During lockres purge, o2dlm sends a drop reference message to the lockres
master. This patch delays the message if the lockres is being migrated.

Fixes oss bugzilla#1012
http://oss.oracle.com/bugzilla/show_bug.cgi?id=1012

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Sunil Mushran 2008-12-16 15:49:21 -08:00 committed by Mark Fasheh
parent 57dff2676e
commit d4f7e650e5
1 changed files with 2 additions and 1 deletions
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3
fs/ocfs2/dlm/dlmthread.c
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@ -181,7 +181,8 @@ static int dlm_purge_lockres(struct dlm_ctxt *dlm,
spin_lock(&res->spinlock);
/* This ensures that clear refmap is sent after the set */
__dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_SETREF_INPROG);
__dlm_wait_on_lockres_flags(res, (DLM_LOCK_RES_SETREF_INPROG |
DLM_LOCK_RES_MIGRATING));
spin_unlock(&res->spinlock);
/* clear our bit from the master's refmap, ignore errors */