evin/ms-nfs41-client
3
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

recovery: support for WANT_DELEGATION

Browse source 
for delegations without an associated open, try the optional WANT_DELEGATION operation with CLAIM_PREVIOUS before falling back to OPEN/CLAIM_PREVIOUS.  the advantage of WANT_DELEGATION is that it doesn't generate an open stateid, so we don't need the corresponding CLOSE as in recover_delegation_open().  if WANT_DELEGATION fails with NFS4ERR_NOTSUPP, don't try it again during that round of state recovery

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2011-07-22 11:32:04 -04:00 • committed by unknown
parent b9b3b00e76
commit 8e5ab92b2b
4 changed files with 238 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

29
daemon/nfs41_ops.h
View file

@ -667,8 +667,6 @@ typedef struct __nfs41_op_open_res_ok {
uint32_t rflags;
bitmap4 attrset;
open_delegation4 *delegation;
uint32_t why_no_deleg;
uint32_t why_none_flag;
} nfs41_op_open_res_ok;
typedef struct __nfs41_op_open_res {
@ -798,6 +796,25 @@ typedef struct __nfs41_setattr_res {
} nfs41_setattr_res;
/* OP_WANT_DELEGATION */
typedef struct __deleg_claim4 {
uint32_t claim;
/* case CLAIM_PREVIOUS: */
uint32_t prev_delegate_type;
} deleg_claim4;
typedef struct __nfs41_want_delegation_args {
uint32_t want;
deleg_claim4 *claim;
} nfs41_want_delegation_args;
typedef struct __nfs41_want_delegation_res {
uint32_t status;
/* case NFS4_OK: */
open_delegation4 *delegation;
} nfs41_want_delegation_res;
/* OP_WRITE */
enum stable_how4 {
UNSTABLE4 = 0,
@ -1158,6 +1175,14 @@ int nfs41_access(
OUT uint32_t *supported OPTIONAL,
OUT uint32_t *access OPTIONAL);
enum nfsstat4 nfs41_want_delegation(
IN nfs41_session *session,
IN nfs41_path_fh *file,
IN deleg_claim4 *claim,
IN uint32_t want,
IN bool_t try_recovery,
OUT open_delegation4 *delegation);
int nfs41_delegpurge(
IN nfs41_session *session);