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[PATCH] knfsd: nfsd4: reorganize compound ops 

Define an op descriptor struct, use it to simplify nfsd4_proc_compound().

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
J.Bruce Fields 2006-12-13 00:35:38 -08:00 committed by Linus Torvalds
parent c954e2a5d1
commit b591480bbe
4 changed files with 144 additions and 130 deletions
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254
fs/nfsd/nfs4proc.c
View File

@ -258,7 +258,8 @@ out:
* filehandle-manipulating ops.
*/
static __be32
nfsd4_getfh(struct nfsd4_compound_state *cstate, struct svc_fh **getfh)
nfsd4_getfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct svc_fh **getfh)
{
if (!cstate->current_fh.fh_dentry)
return nfserr_nofilehandle;
@ -279,7 +280,8 @@ nfsd4_putfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
}
static __be32
nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate)
nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
void *arg)
{
__be32 status;
@ -290,7 +292,8 @@ nfsd4_putrootfh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate)
}
static __be32
nfsd4_restorefh(struct nfsd4_compound_state *cstate)
nfsd4_restorefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
void *arg)
{
if (!cstate->save_fh.fh_dentry)
return nfserr_restorefh;
@ -300,7 +303,8 @@ nfsd4_restorefh(struct nfsd4_compound_state *cstate)
}
static __be32
nfsd4_savefh(struct nfsd4_compound_state *cstate)
nfsd4_savefh(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
void *arg)
{
if (!cstate->current_fh.fh_dentry)
return nfserr_nofilehandle;
@ -463,7 +467,8 @@ nfsd4_link(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
}
static __be32
nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate)
nfsd4_lookupp(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
void *arg)
{
struct svc_fh tmp_fh;
__be32 ret;
@ -791,6 +796,16 @@ static struct nfsd4_compound_state *cstate_alloc(void)
return cstate;
}
typedef __be32(*nfsd4op_func)(struct svc_rqst *, struct nfsd4_compound_state *,
void *);
struct nfsd4_operation {
nfsd4op_func op_func;
u32 op_flags;
};
static struct nfsd4_operation nfsd4_ops[];
/*
* COMPOUND call.
*/
@ -800,6 +815,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
struct nfsd4_compoundres *resp)
{
struct nfsd4_op *op;
struct nfsd4_operation *opdesc;
struct nfsd4_compound_state *cstate = NULL;
int slack_bytes;
__be32 status;
@ -854,6 +870,8 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
goto encode_op;
}
opdesc = &nfsd4_ops[op->opnum];
/* All operations except RENEW, SETCLIENTID, RESTOREFH
* SETCLIENTID_CONFIRM, PUTFH and PUTROOTFH
* require a valid current filehandle
@ -883,127 +901,11 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
op->status = nfserr_moved;
goto encode_op;
}
switch (op->opnum) {
case OP_ACCESS:
op->status = nfsd4_access(rqstp, cstate,
&op->u.access);
break;
case OP_CLOSE:
op->status = nfsd4_close(rqstp, cstate,
&op->u.close);
break;
case OP_COMMIT:
op->status = nfsd4_commit(rqstp, cstate,
&op->u.commit);
break;
case OP_CREATE:
op->status = nfsd4_create(rqstp, cstate,
&op->u.create);
break;
case OP_DELEGRETURN:
op->status = nfsd4_delegreturn(rqstp, cstate,
&op->u.delegreturn);
break;
case OP_GETATTR:
op->status = nfsd4_getattr(rqstp, cstate,
&op->u.getattr);
break;
case OP_GETFH:
op->status = nfsd4_getfh(cstate, &op->u.getfh);
break;
case OP_LINK:
op->status = nfsd4_link(rqstp, cstate, &op->u.link);
break;
case OP_LOCK:
op->status = nfsd4_lock(rqstp, cstate, &op->u.lock);
break;
case OP_LOCKT:
op->status = nfsd4_lockt(rqstp, cstate, &op->u.lockt);
break;
case OP_LOCKU:
op->status = nfsd4_locku(rqstp, cstate, &op->u.locku);
break;
case OP_LOOKUP:
op->status = nfsd4_lookup(rqstp, cstate,
&op->u.lookup);
break;
case OP_LOOKUPP:
op->status = nfsd4_lookupp(rqstp, cstate);
break;
case OP_NVERIFY:
op->status = nfsd4_nverify(rqstp, cstate,
&op->u.nverify);
break;
case OP_OPEN:
op->status = nfsd4_open(rqstp, cstate,
&op->u.open);
break;
case OP_OPEN_CONFIRM:
op->status = nfsd4_open_confirm(rqstp, cstate,
&op->u.open_confirm);
break;
case OP_OPEN_DOWNGRADE:
op->status = nfsd4_open_downgrade(rqstp, cstate,
&op->u.open_downgrade);
break;
case OP_PUTFH:
op->status = nfsd4_putfh(rqstp, cstate, &op->u.putfh);
break;
case OP_PUTROOTFH:
op->status = nfsd4_putrootfh(rqstp, cstate);
break;
case OP_READ:
op->status = nfsd4_read(rqstp, cstate, &op->u.read);
break;
case OP_READDIR:
op->status = nfsd4_readdir(rqstp, cstate,
&op->u.readdir);
break;
case OP_READLINK:
op->status = nfsd4_readlink(rqstp, cstate,
&op->u.readlink);
break;
case OP_REMOVE:
op->status = nfsd4_remove(rqstp, cstate,
&op->u.remove);
break;
case OP_RENAME:
op->status = nfsd4_rename(rqstp, cstate,
&op->u.rename);
break;
case OP_RENEW:
op->status = nfsd4_renew(&op->u.renew);
break;
case OP_RESTOREFH:
op->status = nfsd4_restorefh(cstate);
break;
case OP_SAVEFH:
op->status = nfsd4_savefh(cstate);
break;
case OP_SETATTR:
op->status = nfsd4_setattr(rqstp, cstate,
&op->u.setattr);
break;
case OP_SETCLIENTID:
op->status = nfsd4_setclientid(rqstp, &op->u.setclientid);
break;
case OP_SETCLIENTID_CONFIRM:
op->status = nfsd4_setclientid_confirm(rqstp, &op->u.setclientid_confirm);
break;
case OP_VERIFY:
op->status = nfsd4_verify(rqstp, cstate,
&op->u.verify);
break;
case OP_WRITE:
op->status = nfsd4_write(rqstp, cstate, &op->u.write);
break;
case OP_RELEASE_LOCKOWNER:
op->status = nfsd4_release_lockowner(rqstp, &op->u.release_lockowner);
break;
default:
if (opdesc->op_func)
op->status = opdesc->op_func(rqstp, cstate, &op->u);
else
BUG_ON(op->status == nfs_ok);
break;
}
encode_op:
if (op->status == nfserr_replay_me) {
@ -1031,6 +933,108 @@ out:
return status;
}
static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
[OP_ACCESS] = {
.op_func = (nfsd4op_func)nfsd4_access,
},
[OP_CLOSE] = {
.op_func = (nfsd4op_func)nfsd4_close,
},
[OP_COMMIT] = {
.op_func = (nfsd4op_func)nfsd4_commit,
},
[OP_CREATE] = {
.op_func = (nfsd4op_func)nfsd4_create,
},
[OP_DELEGRETURN] = {
.op_func = (nfsd4op_func)nfsd4_delegreturn,
},
[OP_GETATTR] = {
.op_func = (nfsd4op_func)nfsd4_getattr,
},
[OP_GETFH] = {
.op_func = (nfsd4op_func)nfsd4_getfh,
},
[OP_LINK] = {
.op_func = (nfsd4op_func)nfsd4_link,
},
[OP_LOCK] = {
.op_func = (nfsd4op_func)nfsd4_lock,
},
[OP_LOCKT] = {
.op_func = (nfsd4op_func)nfsd4_lockt,
},
[OP_LOCKU] = {
.op_func = (nfsd4op_func)nfsd4_locku,
},
[OP_LOOKUP] = {
.op_func = (nfsd4op_func)nfsd4_lookup,
},
[OP_LOOKUPP] = {
.op_func = (nfsd4op_func)nfsd4_lookupp,
},
[OP_NVERIFY] = {
.op_func = (nfsd4op_func)nfsd4_nverify,
},
[OP_OPEN] = {
.op_func = (nfsd4op_func)nfsd4_open,
},
[OP_OPEN_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_open_confirm,
},
[OP_OPEN_DOWNGRADE] = {
.op_func = (nfsd4op_func)nfsd4_open_downgrade,
},
[OP_PUTFH] = {
.op_func = (nfsd4op_func)nfsd4_putfh,
},
[OP_PUTROOTFH] = {
.op_func = (nfsd4op_func)nfsd4_putrootfh,
},
[OP_READ] = {
.op_func = (nfsd4op_func)nfsd4_read,
},
[OP_READDIR] = {
.op_func = (nfsd4op_func)nfsd4_readdir,
},
[OP_READLINK] = {
.op_func = (nfsd4op_func)nfsd4_readlink,
},
[OP_REMOVE] = {
.op_func = (nfsd4op_func)nfsd4_remove,
},
[OP_RENAME] = {
.op_func = (nfsd4op_func)nfsd4_rename,
},
[OP_RENEW] = {
.op_func = (nfsd4op_func)nfsd4_renew,
},
[OP_RESTOREFH] = {
.op_func = (nfsd4op_func)nfsd4_restorefh,
},
[OP_SAVEFH] = {
.op_func = (nfsd4op_func)nfsd4_savefh,
},
[OP_SETATTR] = {
.op_func = (nfsd4op_func)nfsd4_setattr,
},
[OP_SETCLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_setclientid,
},
[OP_SETCLIENTID_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
},
[OP_VERIFY] = {
.op_func = (nfsd4op_func)nfsd4_verify,
},
[OP_WRITE] = {
.op_func = (nfsd4op_func)nfsd4_write,
},
[OP_RELEASE_LOCKOWNER] = {
.op_func = (nfsd4op_func)nfsd4_release_lockowner,
},
};
#define nfs4svc_decode_voidargs NULL
#define nfs4svc_release_void NULL
#define nfsd4_voidres nfsd4_voidargs

14
fs/nfsd/nfs4state.c
View File

@ -711,7 +711,8 @@ out_err:
*
*/
__be32
nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid *setclid)
{
__be32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
struct xdr_netobj clname = {
@ -876,7 +877,9 @@ out:
* NOTE: callback information will be processed here in a future patch
*/
__be32
nfsd4_setclientid_confirm(struct svc_rqst *rqstp, struct nfsd4_setclientid_confirm *setclientid_confirm)
nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_setclientid_confirm *setclientid_confirm)
{
__be32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
struct nfs4_client *conf, *unconf;
@ -1833,7 +1836,8 @@ static void laundromat_main(struct work_struct *);
static DECLARE_DELAYED_WORK(laundromat_work, laundromat_main);
__be32
nfsd4_renew(clientid_t *clid)
nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
clientid_t *clid)
{
struct nfs4_client *clp;
__be32 status;
@ -2979,7 +2983,9 @@ out:
}
__be32
nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *rlockowner)
nfsd4_release_lockowner(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
struct nfsd4_release_lockowner *rlockowner)
{
clientid_t *clid = &rlockowner->rl_clientid;
struct nfs4_stateowner *sop;

1
include/linux/nfsd/state.h
View File

@ -273,7 +273,6 @@ struct nfs4_stateid {
((err) != nfserr_stale_stateid) && \
((err) != nfserr_bad_stateid))
extern __be32 nfsd4_renew(clientid_t *clid);
extern __be32 nfs4_preprocess_stateid_op(struct svc_fh *current_fh,
stateid_t *stateid, int flags, struct file **filp);
extern void nfs4_lock_state(void);

5
include/linux/nfsd/xdr4.h
View File

@ -436,8 +436,10 @@ __be32 nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
struct dentry *dentry, __be32 *buffer, int *countp,
u32 *bmval, struct svc_rqst *);
extern __be32 nfsd4_setclientid(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_setclientid *setclid);
extern __be32 nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_setclientid_confirm *setclientid_confirm);
extern __be32 nfsd4_process_open1(struct nfsd4_open *open);
extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp,
@ -460,10 +462,13 @@ extern __be32 nfsd4_locku(struct svc_rqst *rqstp,
struct nfsd4_locku *locku);
extern __be32
nfsd4_release_lockowner(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_release_lockowner *rlockowner);
extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, clientid_t *clid);
#endif
/*