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| author | Kurt Hackel <kurt.hackel@oracle.com> | 2006-05-01 13:27:10 -0700 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2006-06-26 14:43:06 -0700 |
| commit | 2abaf97e62e51fdd09d5a46703b3b680f24bdd8b (patch) | |
| tree | 0934722ce8d7a4372758c61acdda3b37d4f8a7a4 | |
| parent | aa087b84977173395c0e3a1e0c1773314958f277 (diff) | |
| download | linux-stable-2abaf97e62e51fdd09d5a46703b3b680f24bdd8b.tar.gz linux-stable-2abaf97e62e51fdd09d5a46703b3b680f24bdd8b.tar.bz2 linux-stable-2abaf97e62e51fdd09d5a46703b3b680f24bdd8b.zip | |
ocfs2: do not unconditionally purge the lockres in dlmlock_remote()
In dlmlock_remote(), do not call purge_lockres until the lock resource
actually changes. otherwise, the mastery info on the lockres will go away
underneath the caller.
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| -rw-r--r-- | fs/ocfs2/dlm/dlmlock.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 57576208b79c..675123c30852 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -201,6 +201,7 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, struct dlm_lock *lock, int flags) { enum dlm_status status = DLM_DENIED; + int lockres_changed = 1; mlog_entry("type=%d\n", lock->ml.type); mlog(0, "lockres %.*s, flags = 0x%x\n", res->lockname.len, @@ -230,6 +231,10 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, dlm_error(status); dlm_revert_pending_lock(res, lock); dlm_lock_put(lock); + /* do NOT call calc_usage, as this would unhash the remote + * lockres before we ever get to use it. treat as if we + * never made any change to the lockres. */ + lockres_changed = 0; } else if (dlm_is_recovery_lock(res->lockname.name, res->lockname.len)) { /* special case for the $RECOVERY lock. @@ -243,7 +248,8 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, } spin_unlock(&res->spinlock); - dlm_lockres_calc_usage(dlm, res); + if (lockres_changed) + dlm_lockres_calc_usage(dlm, res); wake_up(&res->wq); return status; |