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recovery: recover from delegation stateid errors

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delegation stateid arguments to DELEGRETURN and OPEN are now stateid_arg, for use with recover_stateid_delegation().  added a nfs41_delegation_state pointer to stateid_arg, for when a delegation stateid is used in the absence of nfs41_open_state (DELEGRETURN, SETATTR)

recovery during a call to nfs41_delegation_to_open() requires special attention; recover_stateid_delegation() has to handle the case where recover_open() already reclaimed the open stateid.  it does this by returning BAD_STATEID instead of retrying the OPEN (which would generate yet another open stateid)

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2011-07-20 15:28:31 -04:00 • committed by unknown
parent 4f47ae9a37
commit d44470c877
7 changed files with 104 additions and 21 deletions
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daemon/lock.c
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@ -39,6 +39,7 @@ static void lock_stateid_arg(
OUT stateid_arg *arg)
{
arg->open = state;
arg->delegation = NULL;
/* open_to_lock_owner4 requires an open stateid; if we
* have a delegation, convert it to an open stateid */