[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>
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 8fc2cab9..e1c463b 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -258,7 +258,8 @@
* 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 @@
}
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 @@
}
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 @@
}
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 @@
}
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 @@
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 @@
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 @@
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 @@
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 @@
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