evin/ms-nfs41-client
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deleg: use delegations to satisfy opens locally

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added delegation.c and .h

nfs41_client stores a list of nfs41_delegation_state
new function nfs41_delegate_open() to look for a compatible delegation before calling nfs41_open()
if nfs41_open() is granted a delegation, call nfs41_delegation_granted() to register it with the client
client calls nfs41_client_delegation_free() on unmount to free list of delegations

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
This commit is contained in:
Casey Bodley 2011-06-09 15:01:16 -04:00 • committed by unknown
parent 0c874a66ba
commit 0bee545e91
7 changed files with 345 additions and 16 deletions
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12
daemon/nfs41.h
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@ -80,6 +80,13 @@ typedef struct __nfs41_server {
LONG ref_count;
} nfs41_server;
typedef struct __nfs41_delegation_state {
open_delegation4 state;
nfs41_fh fh;
struct list_entry client_entry; /* entry in nfs41_client.delegations */
LONG ref_count;
} nfs41_delegation_state;
typedef struct __nfs41_lock_state {
struct list_entry open_entry; /* entry in nfs41_open_state.locks */
uint64_t offset;
@ -110,6 +117,10 @@ typedef struct __nfs41_open_state {
uint32_t share_access;
uint32_t share_deny;
struct {
nfs41_delegation_state *state;
} delegation;
struct { /* list of open lock state for recovery */
stateid4 stateid;
struct list_entry list;
@ -137,6 +148,7 @@ typedef struct __nfs41_rpc_clnt {
struct client_state {
struct list_entry opens; /* list of associated nfs41_open_state */
struct list_entry delegations; /* list of associated delegations */
CRITICAL_SECTION lock;
};