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authorJ. Bruce Fields <bfields@redhat.com>2011-09-23 23:20:02 +0200
committerJ. Bruce Fields <bfields@redhat.com>2011-09-26 23:35:25 +0200
commit2a74aba799bfbc02977b69400b7bf4d2850aea79 (patch)
treed1119f4dbcd05087f7c2ba10203d6842e4252655 /fs/nfsd/nfs4state.c
parentleases: split up generic_setlease into lock/unlock cases (diff)
downloadlinux-2a74aba799bfbc02977b69400b7bf4d2850aea79.tar.xz
linux-2a74aba799bfbc02977b69400b7bf4d2850aea79.zip
nfsd4: move client * to nfs4_stateid, add init_stid helper
This will be convenient. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4state.c')
-rw-r--r--fs/nfsd/nfs4state.c48
1 files changed, 26 insertions, 22 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index edcced18caa8..cb36c9a2e8ca 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -224,6 +224,19 @@ static inline void hash_stid(struct nfs4_stid *stid)
list_add(&stid->sc_hash, &stateid_hashtbl[hashval]);
}
+static void init_stid(struct nfs4_stid *stid, struct nfs4_client *cl, unsigned char type)
+{
+ stateid_t *s = &stid->sc_stateid;
+
+ stid->sc_type = type;
+ stid->sc_client = cl;
+ s->si_opaque.so_clid = cl->cl_clientid;
+ s->si_opaque.so_id = current_stateid++;
+ /* Will be incremented before return to client: */
+ s->si_generation = 0;
+ hash_stid(stid);
+}
+
static struct nfs4_delegation *
alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct svc_fh *current_fh, u32 type)
{
@@ -245,19 +258,20 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_ol_stateid *stp, struct sv
dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
if (dp == NULL)
return dp;
+ init_stid(&dp->dl_stid, clp, NFS4_DELEG_STID);
+ /*
+ * delegation seqid's are never incremented. The 4.1 special
+ * meaning of seqid 0 isn't really meaningful, really, but let's
+ * avoid 0 anyway just for consistency and use 1:
+ */
+ dp->dl_stid.sc_stateid.si_generation = 1;
num_delegations++;
INIT_LIST_HEAD(&dp->dl_perfile);
INIT_LIST_HEAD(&dp->dl_perclnt);
INIT_LIST_HEAD(&dp->dl_recall_lru);
- dp->dl_client = clp;
get_nfs4_file(fp);
dp->dl_file = fp;
dp->dl_type = type;
- dp->dl_stid.sc_type = NFS4_DELEG_STID;
- dp->dl_stid.sc_stateid.si_opaque.so_clid = clp->cl_clientid;
- dp->dl_stid.sc_stateid.si_opaque.so_id = current_stateid++;
- dp->dl_stid.sc_stateid.si_generation = 1;
- hash_stid(&dp->dl_stid);
fh_copy_shallow(&dp->dl_fh, &current_fh->fh_handle);
dp->dl_time = 0;
atomic_set(&dp->dl_count, 1);
@@ -2333,18 +2347,13 @@ init_open_stateid(struct nfs4_ol_stateid *stp, struct nfs4_file *fp, struct nfsd
struct nfs4_openowner *oo = open->op_openowner;
struct nfs4_client *clp = oo->oo_owner.so_client;
+ init_stid(&stp->st_stid, clp, NFS4_OPEN_STID);
INIT_LIST_HEAD(&stp->st_lockowners);
list_add(&stp->st_perstateowner, &oo->oo_owner.so_stateids);
list_add(&stp->st_perfile, &fp->fi_stateids);
- stp->st_stid.sc_type = NFS4_OPEN_STID;
stp->st_stateowner = &oo->oo_owner;
get_nfs4_file(fp);
stp->st_file = fp;
- stp->st_stid.sc_stateid.si_opaque.so_clid = clp->cl_clientid;
- stp->st_stid.sc_stateid.si_opaque.so_id = current_stateid++;
- /* note will be incremented before first return to client: */
- stp->st_stid.sc_stateid.si_generation = 0;
- hash_stid(&stp->st_stid);
stp->st_access_bmap = 0;
stp->st_deny_bmap = 0;
__set_bit(open->op_share_access & ~NFS4_SHARE_WANT_MASK,
@@ -2792,7 +2801,7 @@ static int nfs4_setlease(struct nfs4_delegation *dp, int flag)
if (!fl)
return -ENOMEM;
fl->fl_file = find_readable_file(fp);
- list_add(&dp->dl_perclnt, &dp->dl_client->cl_delegations);
+ list_add(&dp->dl_perclnt, &dp->dl_stid.sc_client->cl_delegations);
status = vfs_setlease(fl->fl_file, fl->fl_type, &fl);
if (status) {
list_del_init(&dp->dl_perclnt);
@@ -2821,7 +2830,7 @@ static int nfs4_set_delegation(struct nfs4_delegation *dp, int flag)
atomic_inc(&fp->fi_delegees);
list_add(&dp->dl_perfile, &fp->fi_delegations);
spin_unlock(&recall_lock);
- list_add(&dp->dl_perclnt, &dp->dl_client->cl_delegations);
+ list_add(&dp->dl_perclnt, &dp->dl_stid.sc_client->cl_delegations);
return 0;
}
@@ -3295,7 +3304,7 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
status = nfs4_check_delegmode(dp, flags);
if (status)
goto out;
- renew_client(dp->dl_client);
+ renew_client(dp->dl_stid.sc_client);
if (filpp) {
*filpp = dp->dl_file->fi_deleg_file;
BUG_ON(!*filpp);
@@ -3665,7 +3674,7 @@ nfsd4_delegreturn(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
status = check_stateid_generation(stateid, &dp->dl_stid.sc_stateid, nfsd4_has_session(cstate));
if (status)
goto out;
- renew_client(dp->dl_client);
+ renew_client(dp->dl_stid.sc_client);
unhash_delegation(dp);
out:
@@ -3819,17 +3828,12 @@ alloc_init_lock_stateid(struct nfs4_lockowner *lo, struct nfs4_file *fp, struct
stp = nfs4_alloc_stateid();
if (stp == NULL)
goto out;
+ init_stid(&stp->st_stid, clp, NFS4_LOCK_STID);
list_add(&stp->st_perfile, &fp->fi_stateids);
list_add(&stp->st_perstateowner, &lo->lo_owner.so_stateids);
stp->st_stateowner = &lo->lo_owner;
- stp->st_stid.sc_type = NFS4_LOCK_STID;
get_nfs4_file(fp);
stp->st_file = fp;
- stp->st_stid.sc_stateid.si_opaque.so_clid = clp->cl_clientid;
- stp->st_stid.sc_stateid.si_opaque.so_id = current_stateid++;
- /* note will be incremented before first return to client: */
- stp->st_stid.sc_stateid.si_generation = 0;
- hash_stid(&stp->st_stid);
stp->st_access_bmap = 0;
stp->st_deny_bmap = open_stp->st_deny_bmap;
stp->st_openstp = open_stp;