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nfsd4: name openowner data structures more clearly 

These appear to be generic (for both open and lock owners), but they're
actually just for open owners.  This has confused me more than once.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-08-11 18:50:18 -04:00
parent ddc04c4163
commit 506f275fff
1 changed files with 18 additions and 18 deletions
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36
fs/nfsd/nfs4state.c
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@ -134,27 +134,27 @@ unsigned int max_delegations;
* Open owner state (share locks) * Open owner state (share locks)
*/ */
/* hash tables for nfs4_stateowner */ /* hash tables for open owners */
#define OWNER_HASH_BITS 8 #define OPEN_OWNER_HASH_BITS 8
#define OWNER_HASH_SIZE (1 << OWNER_HASH_BITS) #define OPEN_OWNER_HASH_SIZE (1 << OPEN_OWNER_HASH_BITS)
#define OWNER_HASH_MASK (OWNER_HASH_SIZE - 1) #define OPEN_OWNER_HASH_MASK (OPEN_OWNER_HASH_SIZE - 1)
static unsigned int ownerid_hashval(const u32 id) static unsigned int open_ownerid_hashval(const u32 id)
{ {
return id & OWNER_HASH_MASK; return id & OPEN_OWNER_HASH_MASK;
} }
static unsigned int ownerstr_hashval(u32 clientid, struct xdr_netobj *ownername) static unsigned int open_ownerstr_hashval(u32 clientid, struct xdr_netobj *ownername)
{ {
unsigned int ret; unsigned int ret;
ret = opaque_hashval(ownername->data, ownername->len); ret = opaque_hashval(ownername->data, ownername->len);
ret += clientid; ret += clientid;
return ret & OWNER_HASH_MASK; return ret & OPEN_OWNER_HASH_MASK;
} }
static struct list_head ownerid_hashtbl[OWNER_HASH_SIZE]; static struct list_head open_ownerid_hashtbl[OPEN_OWNER_HASH_SIZE];
static struct list_head ownerstr_hashtbl[OWNER_HASH_SIZE]; static struct list_head open_ownerstr_hashtbl[OPEN_OWNER_HASH_SIZE];
/* hash table for nfs4_file */ /* hash table for nfs4_file */
#define FILE_HASH_BITS 8 #define FILE_HASH_BITS 8
@ -2240,7 +2240,7 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
if (!(sop = alloc_stateowner(&open->op_owner))) if (!(sop = alloc_stateowner(&open->op_owner)))
return NULL; return NULL;
idhashval = ownerid_hashval(current_ownerid); idhashval = open_ownerid_hashval(current_ownerid);
INIT_LIST_HEAD(&sop->so_idhash); INIT_LIST_HEAD(&sop->so_idhash);
INIT_LIST_HEAD(&sop->so_strhash); INIT_LIST_HEAD(&sop->so_strhash);
INIT_LIST_HEAD(&sop->so_perclient); INIT_LIST_HEAD(&sop->so_perclient);
@ -2248,8 +2248,8 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
INIT_LIST_HEAD(&sop->so_perstateid); /* not used */ INIT_LIST_HEAD(&sop->so_perstateid); /* not used */
INIT_LIST_HEAD(&sop->so_close_lru); INIT_LIST_HEAD(&sop->so_close_lru);
sop->so_time = 0; sop->so_time = 0;
list_add(&sop->so_idhash, &ownerid_hashtbl[idhashval]); list_add(&sop->so_idhash, &open_ownerid_hashtbl[idhashval]);
list_add(&sop->so_strhash, &ownerstr_hashtbl[strhashval]); list_add(&sop->so_strhash, &open_ownerstr_hashtbl[strhashval]);
list_add(&sop->so_perclient, &clp->cl_openowners); list_add(&sop->so_perclient, &clp->cl_openowners);
sop->so_is_open_owner = 1; sop->so_is_open_owner = 1;
sop->so_id = current_ownerid++; sop->so_id = current_ownerid++;
@ -2313,7 +2313,7 @@ find_openstateowner_str(unsigned int hashval, struct nfsd4_open *open)
{ {
struct nfs4_stateowner *so = NULL; struct nfs4_stateowner *so = NULL;
list_for_each_entry(so, &ownerstr_hashtbl[hashval], so_strhash) { list_for_each_entry(so, &open_ownerstr_hashtbl[hashval], so_strhash) {
if (same_owner_str(so, &open->op_owner, &open->op_clientid)) if (same_owner_str(so, &open->op_owner, &open->op_clientid))
return so; return so;
} }
@ -2464,7 +2464,7 @@ nfsd4_process_open1(struct nfsd4_compound_state *cstate,
if (STALE_CLIENTID(&open->op_clientid)) if (STALE_CLIENTID(&open->op_clientid))
return nfserr_stale_clientid; return nfserr_stale_clientid;
strhashval = ownerstr_hashval(clientid->cl_id, &open->op_owner); strhashval = open_ownerstr_hashval(clientid->cl_id, &open->op_owner);
sop = find_openstateowner_str(strhashval, open); sop = find_openstateowner_str(strhashval, open);
open->op_stateowner = sop; open->op_stateowner = sop;
if (!sop) { if (!sop) {
@ -4518,9 +4518,9 @@ nfs4_state_init(void)
for (i = 0; i < FILE_HASH_SIZE; i++) { for (i = 0; i < FILE_HASH_SIZE; i++) {
INIT_LIST_HEAD(&file_hashtbl[i]); INIT_LIST_HEAD(&file_hashtbl[i]);
} }
for (i = 0; i < OWNER_HASH_SIZE; i++) { for (i = 0; i < OPEN_OWNER_HASH_SIZE; i++) {
INIT_LIST_HEAD(&ownerstr_hashtbl[i]); INIT_LIST_HEAD(&open_ownerstr_hashtbl[i]);
INIT_LIST_HEAD(&ownerid_hashtbl[i]); INIT_LIST_HEAD(&open_ownerid_hashtbl[i]);
} }
for (i = 0; i < STATEID_HASH_SIZE; i++) { for (i = 0; i < STATEID_HASH_SIZE; i++) {
INIT_LIST_HEAD(&stateid_hashtbl[i]); INIT_LIST_HEAD(&stateid_hashtbl[i]);